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 (20210616 | Detects win.parallax.)
rule win_parallax_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.parallax."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.parallax"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 6a00 6810700000 68ffff0000 ff7704 e8???????? 6a01 }
            // n = 7, score = 200
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6810700000           | push                0x7010
            //   68ffff0000           | push                0xffff
            //   ff7704               | push                dword ptr [edi + 4]
            //   e8????????           |                     
            //   6a01                 | push                1

        $sequence_1 = { 0f8430010000 837d1871 0f8426010000 ff7510 e8???????? }
            // n = 5, score = 200
            //   0f8430010000         | je                  0x136
            //   837d1871             | cmp                 dword ptr [ebp + 0x18], 0x71
            //   0f8426010000         | je                  0x12c
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   e8????????           |                     

        $sequence_2 = { 5d c20400 55 8bec 57 8b7d08 8b4d0c }
            // n = 7, score = 200
            //   5d                   | pop                 ebp
            //   c20400               | ret                 4
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   57                   | push                edi
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]

        $sequence_3 = { eb12 6639140e 7509 8b5d10 }
            // n = 4, score = 200
            //   eb12                 | jmp                 0x14
            //   6639140e             | cmp                 word ptr [esi + ecx], dx
            //   7509                 | jne                 0xb
            //   8b5d10               | mov                 ebx, dword ptr [ebp + 0x10]

        $sequence_4 = { ff75f8 ff75fc ff750c ff7508 e8???????? eb6b }
            // n = 6, score = 200
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   eb6b                 | jmp                 0x6d

        $sequence_5 = { 8bec 83c4f4 56 57 c745fc00000000 c745f400000000 }
            // n = 6, score = 200
            //   8bec                 | mov                 ebp, esp
            //   83c4f4               | add                 esp, -0xc
            //   56                   | push                esi
            //   57                   | push                edi
            //   c745fc00000000       | mov                 dword ptr [ebp - 4], 0
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0

        $sequence_6 = { 8be5 5d c21000 ff7508 e8???????? }
            // n = 5, score = 200
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c21000               | ret                 0x10
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     

        $sequence_7 = { e9???????? 3d34800000 750d ff7514 ff7510 e8???????? eb6d }
            // n = 7, score = 200
            //   e9????????           |                     
            //   3d34800000           | cmp                 eax, 0x8034
            //   750d                 | jne                 0xf
            //   ff7514               | push                dword ptr [ebp + 0x14]
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   e8????????           |                     
            //   eb6d                 | jmp                 0x6f

        $sequence_8 = { 85c0 7544 8b15???????? ff9284000000 8945f8 66b80400 8b55f8 }
            // n = 7, score = 200
            //   85c0                 | test                eax, eax
            //   7544                 | jne                 0x46
            //   8b15????????         |                     
            //   ff9284000000         | call                dword ptr [edx + 0x84]
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   66b80400             | mov                 ax, 4
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]

        $sequence_9 = { 83f8ff 744b 8987f8000000 8b550c 897a48 be???????? }
            // n = 6, score = 200
            //   83f8ff               | cmp                 eax, -1
            //   744b                 | je                  0x4d
            //   8987f8000000         | mov                 dword ptr [edi + 0xf8], eax
            //   8b550c               | mov                 edx, dword ptr [ebp + 0xc]
            //   897a48               | mov                 dword ptr [edx + 0x48], edi
            //   be????????           |                     

    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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