SYMBOLCOMMON_NAMEaka. SYNONYMS
win.glooxmail (Back to overview)

GlooxMail

Actor(s): Comment Crew


There is no description at this point.

References
2018MandiantMandiant
@techreport{mandiant:2018:apt1:b76cc4d, author = {Mandiant}, title = {{APT1}}, date = {2018}, institution = {Mandiant}, url = {https://github.com/securitykitten/malware_references/blob/master/Appendix%20C%20(Digital)%20-%20The%20Malware%20Arsenal.pdf}, language = {English}, urldate = {2020-01-13} } APT1
Auriga Biscuit Bouncer Combos CookieBag Dairy GetMail GlooxMail Goggles Hacksfase Helauto Kurton ManItsMe MAPIget MiniASP NewsReels SeaSalt StarsyPound Sword TabMsgSQL Tarsip WebC2-AdSpace WebC2-Ausov WebC2-Bolid WebC2-Cson WebC2-DIV WebC2-GreenCat WebC2-Head WebC2-Kt3 WebC2-Qbp WebC2-Rave WebC2-Table WebC2-UGX WebC2-Yahoo
Yara Rules
[TLP:WHITE] win_glooxmail_auto (20220411 | Detects win.glooxmail.)
rule win_glooxmail_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        version = "1"
        description = "Detects win.glooxmail."
        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.glooxmail"
        malpedia_rule_date = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { c20400 6a5c b8???????? e8???????? 8b06 8bce ff5028 }
            // n = 7, score = 100
            //   c20400               | ret                 4
            //   6a5c                 | push                0x5c
            //   b8????????           |                     
            //   e8????????           |                     
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   8bce                 | mov                 ecx, esi
            //   ff5028               | call                dword ptr [eax + 0x28]

        $sequence_1 = { 50 6a08 6a00 8d9e78030000 c744246401000000 e8???????? 834c2458ff }
            // n = 7, score = 100
            //   50                   | push                eax
            //   6a08                 | push                8
            //   6a00                 | push                0
            //   8d9e78030000         | lea                 ebx, dword ptr [esi + 0x378]
            //   c744246401000000     | mov                 dword ptr [esp + 0x64], 1
            //   e8????????           |                     
            //   834c2458ff           | or                  dword ptr [esp + 0x58], 0xffffffff

        $sequence_2 = { 894568 c745fc10000000 3bc3 7440 56 8d4d38 }
            // n = 6, score = 100
            //   894568               | mov                 dword ptr [ebp + 0x68], eax
            //   c745fc10000000       | mov                 dword ptr [ebp - 4], 0x10
            //   3bc3                 | cmp                 eax, ebx
            //   7440                 | je                  0x42
            //   56                   | push                esi
            //   8d4d38               | lea                 ecx, dword ptr [ebp + 0x38]

        $sequence_3 = { 8b45b4 894580 8b8744010000 898578ffffff 8b8748010000 897584 894590 }
            // n = 7, score = 100
            //   8b45b4               | mov                 eax, dword ptr [ebp - 0x4c]
            //   894580               | mov                 dword ptr [ebp - 0x80], eax
            //   8b8744010000         | mov                 eax, dword ptr [edi + 0x144]
            //   898578ffffff         | mov                 dword ptr [ebp - 0x88], eax
            //   8b8748010000         | mov                 eax, dword ptr [edi + 0x148]
            //   897584               | mov                 dword ptr [ebp - 0x7c], esi
            //   894590               | mov                 dword ptr [ebp - 0x70], eax

        $sequence_4 = { 5e 5b 83c564 c9 c20400 68b0010000 b8???????? }
            // n = 7, score = 100
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   83c564               | add                 ebp, 0x64
            //   c9                   | leave               
            //   c20400               | ret                 4
            //   68b0010000           | push                0x1b0
            //   b8????????           |                     

        $sequence_5 = { 8d8d5cffffff 895dec e8???????? 6a07 895dfc 8b06 5b }
            // n = 7, score = 100
            //   8d8d5cffffff         | lea                 ecx, dword ptr [ebp - 0xa4]
            //   895dec               | mov                 dword ptr [ebp - 0x14], ebx
            //   e8????????           |                     
            //   6a07                 | push                7
            //   895dfc               | mov                 dword ptr [ebp - 4], ebx
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   5b                   | pop                 ebx

        $sequence_6 = { 57 8d4608 6a20 33db 50 895df0 897dfc }
            // n = 7, score = 100
            //   57                   | push                edi
            //   8d4608               | lea                 eax, dword ptr [esi + 8]
            //   6a20                 | push                0x20
            //   33db                 | xor                 ebx, ebx
            //   50                   | push                eax
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx
            //   897dfc               | mov                 dword ptr [ebp - 4], edi

        $sequence_7 = { c645fc03 e8???????? be???????? 56 8d4dd0 c645fc04 e8???????? }
            // n = 7, score = 100
            //   c645fc03             | mov                 byte ptr [ebp - 4], 3
            //   e8????????           |                     
            //   be????????           |                     
            //   56                   | push                esi
            //   8d4dd0               | lea                 ecx, dword ptr [ebp - 0x30]
            //   c645fc04             | mov                 byte ptr [ebp - 4], 4
            //   e8????????           |                     

        $sequence_8 = { e9???????? ffb540ffffff e8???????? 59 c3 8b853cffffff }
            // n = 6, score = 100
            //   e9????????           |                     
            //   ffb540ffffff         | push                dword ptr [ebp - 0xc0]
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   c3                   | ret                 
            //   8b853cffffff         | mov                 eax, dword ptr [ebp - 0xc4]

        $sequence_9 = { 52 ff5010 56 53 8d4d38 e8???????? 834dfcff }
            // n = 7, score = 100
            //   52                   | push                edx
            //   ff5010               | call                dword ptr [eax + 0x10]
            //   56                   | push                esi
            //   53                   | push                ebx
            //   8d4d38               | lea                 ecx, dword ptr [ebp + 0x38]
            //   e8????????           |                     
            //   834dfcff             | or                  dword ptr [ebp - 4], 0xffffffff

    condition:
        7 of them and filesize < 761856
}
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