SYMBOLCOMMON_NAMEaka. SYNONYMS
win.parallax (Back to overview)

Parallax RAT

aka: ParallaxRAT

Parallax is a Remote Access Trojan used by attackers to gain access to a victim's machine. It was involved in one of the many infamous "coronamalware" campaigns. Basically, the attackers abused the COVID-19 pandemic news to lure victims into opening themed emails spreading parallax.

References
2020-03-18MorphisecArnold Osipov
@online{osipov:20200318:parallax:fa4b01d, author = {Arnold Osipov}, title = {{Parallax: The new RAT on the block}}, date = {2020-03-18}, organization = {Morphisec}, url = {https://blog.morphisec.com/parallax-rat-active-status}, language = {English}, urldate = {2020-03-25} } Parallax: The new RAT on the block
Parallax RAT
2020-02-27Vitali Kremez
@online{kremez:20200227:lets:8b6f2b8, author = {Vitali Kremez}, title = {{Let’s Learn: Inside Parallax RAT Malware: Process Hollowing Injection & Process Doppelgänging API Mix: Part I}}, date = {2020-02-27}, url = {https://www.vkremez.com/2020/02/lets-learn-inside-parallax-rat-malware.html}, language = {English}, urldate = {2020-03-25} } Let’s Learn: Inside Parallax RAT Malware: Process Hollowing Injection & Process Doppelgänging API Mix: Part I
Parallax RAT
2020-02-13TalosNick Biasini, Edmund Brumaghin
@online{biasini:20200213:threat:443d687, author = {Nick Biasini and Edmund Brumaghin}, title = {{Threat actors attempt to capitalize on coronavirus outbreak}}, date = {2020-02-13}, organization = {Talos}, url = {https://blog.talosintelligence.com/2020/02/coronavirus-themed-malware.html}, language = {English}, urldate = {2020-03-19} } Threat actors attempt to capitalize on coronavirus outbreak
Emotet Nanocore RAT Parallax RAT
2020-02-13Bleeping ComputerLawrence Abrams
@online{abrams:20200213:parallax:9842604, author = {Lawrence Abrams}, title = {{Parallax RAT: Common Malware Payload After Hacker Forums Promotion}}, date = {2020-02-13}, organization = {Bleeping Computer}, url = {https://www.bleepingcomputer.com/news/security/parallax-rat-common-malware-payload-after-hacker-forums-promotion/}, language = {English}, urldate = {2020-04-01} } Parallax RAT: Common Malware Payload After Hacker Forums Promotion
Parallax RAT
2020-02-11Twitter (@malwrhunterteam)MalwareHunterTeam
@online{malwarehunterteam:20200211:parallax:e157478, author = {MalwareHunterTeam}, title = {{Tweet on Parallax RAT}}, date = {2020-02-11}, organization = {Twitter (@malwrhunterteam)}, url = {https://twitter.com/malwrhunterteam/status/1227196799997431809}, language = {English}, urldate = {2020-02-13} } Tweet on Parallax RAT
Parallax RAT
Yara Rules
[TLP:WHITE] win_parallax_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_parallax_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.parallax"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 6a00 ff35???????? ff5260 8b15???????? ffb740010000 6a00 ff35???????? }
            // n = 7, score = 200
            //   6a00                 | push                0
            //   ff35????????         |                     
            //   ff5260               | call                dword ptr [edx + 0x60]
            //   8b15????????         |                     
            //   ffb740010000         | push                dword ptr [edi + 0x140]
            //   6a00                 | push                0
            //   ff35????????         |                     

        $sequence_1 = { ff7508 e8???????? 83f801 7516 6a00 ff7508 6815800000 }
            // n = 7, score = 200
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   83f801               | cmp                 eax, 1
            //   7516                 | jne                 0x18
            //   6a00                 | push                0
            //   ff7508               | push                dword ptr [ebp + 8]
            //   6815800000           | push                0x8015

        $sequence_2 = { e8???????? 6a09 ff750c e8???????? 6a00 ff750c ff7508 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   6a09                 | push                9
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   e8????????           |                     
            //   6a00                 | push                0
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff7508               | push                dword ptr [ebp + 8]

        $sequence_3 = { 8b7508 8b15???????? ff75f0 ff7508 e8???????? }
            // n = 5, score = 200
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8b15????????         |                     
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     

        $sequence_4 = { f76514 8bc8 8b4510 f7e6 03d1 720c }
            // n = 6, score = 200
            //   f76514               | mul                 dword ptr [ebp + 0x14]
            //   8bc8                 | mov                 ecx, eax
            //   8b4510               | mov                 eax, dword ptr [ebp + 0x10]
            //   f7e6                 | mul                 esi
            //   03d1                 | add                 edx, ecx
            //   720c                 | jb                  0xe

        $sequence_5 = { 837e3c00 7530 6a01 68ff1f0000 e8???????? }
            // n = 5, score = 200
            //   837e3c00             | cmp                 dword ptr [esi + 0x3c], 0
            //   7530                 | jne                 0x32
            //   6a01                 | push                1
            //   68ff1f0000           | push                0x1fff
            //   e8????????           |                     

        $sequence_6 = { 894df0 ff75f4 ff7510 ff750c ff7508 }
            // n = 5, score = 200
            //   894df0               | mov                 dword ptr [ebp - 0x10], ecx
            //   ff75f4               | push                dword ptr [ebp - 0xc]
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff7508               | push                dword ptr [ebp + 8]

        $sequence_7 = { e8???????? 8b7508 8b4518 83f864 751a 6a01 68???????? }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8b4518               | mov                 eax, dword ptr [ebp + 0x18]
            //   83f864               | cmp                 eax, 0x64
            //   751a                 | jne                 0x1c
            //   6a01                 | push                1
            //   68????????           |                     

        $sequence_8 = { ff7514 8d4630 50 ff7508 e8???????? e9???????? 83f869 }
            // n = 7, score = 200
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   8d4630               | lea                 eax, [esi + 0x30]
            //   50                   | push                eax
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   e9????????           |                     
            //   83f869               | cmp                 eax, 0x69

        $sequence_9 = { 8d424c 50 e8???????? 68???????? ff7508 e8???????? 83f8ff }
            // n = 7, score = 200
            //   8d424c               | lea                 eax, [edx + 0x4c]
            //   50                   | push                eax
            //   e8????????           |                     
            //   68????????           |                     
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   83f8ff               | cmp                 eax, -1

    condition:
        7 of them and filesize < 352256
}
[TLP:WHITE] win_parallax_w0   (20200327 | No description)
rule win_parallax_w0 {
    meta:
        author = "jeFF0Falltrades"
        source = "https://github.com/jeFF0Falltrades/IoCs/blob/master/Broadbased/parallax_rat.md"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.parallax"
        malpedia_version = "20200327"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    strings:
        $str_ws = ".DeleteFile(Wscript.ScriptFullName)" wide ascii
        $str_cb_1 = "Clipboard Start" wide ascii
        $str_cb_2 = "Clipboard End" wide ascii
        $str_un = "UN.vbs" wide ascii
        $hex_keylogger = { 64 24 ?? C0 CA FA }

    condition:
        3 of them
}
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