SYMBOLCOMMON_NAMEaka. SYNONYMS
win.mole (Back to overview)

Mole


There is no description at this point.

References
2017-06-20ProofpointKafeine
@online{kafeine:20170620:adgholas:8ca8d57, author = {Kafeine}, title = {{AdGholas Malvertising Campaign Using Astrum EK to Deliver Mole Ransomware}}, date = {2017-06-20}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/adgholas-malvertising-campaign-using-astrum-ek-deliver-mole-ransomware}, language = {English}, urldate = {2019-12-20} } AdGholas Malvertising Campaign Using Astrum EK to Deliver Mole Ransomware
Mole
2017-05-30CERT.PLJarosław Jedynak
@online{jedynak:20170530:mole:868f8ea, author = {Jarosław Jedynak}, title = {{Mole ransomware: analysis and decryptor}}, date = {2017-05-30}, organization = {CERT.PL}, url = {https://www.cert.pl/en/news/single/mole-ransomware-analysis-and-decryptor/}, language = {English}, urldate = {2019-12-17} } Mole ransomware: analysis and decryptor
Mole
Yara Rules
[TLP:WHITE] win_mole_auto (20230715 | Detects win.mole.)
rule win_mole_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.mole."
        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.mole"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 52 ff15???????? 898594efffff 6a00 8d8588efffff 50 8b8d94efffff }
            // n = 7, score = 100
            //   52                   | push                edx
            //   ff15????????         |                     
            //   898594efffff         | mov                 dword ptr [ebp - 0x106c], eax
            //   6a00                 | push                0
            //   8d8588efffff         | lea                 eax, [ebp - 0x1078]
            //   50                   | push                eax
            //   8b8d94efffff         | mov                 ecx, dword ptr [ebp - 0x106c]

        $sequence_1 = { 6a00 8d8db8e4ffff 51 8b95a8e4ffff 52 8d85fcfaffff }
            // n = 6, score = 100
            //   6a00                 | push                0
            //   8d8db8e4ffff         | lea                 ecx, [ebp - 0x1b48]
            //   51                   | push                ecx
            //   8b95a8e4ffff         | mov                 edx, dword ptr [ebp - 0x1b58]
            //   52                   | push                edx
            //   8d85fcfaffff         | lea                 eax, [ebp - 0x504]

        $sequence_2 = { 8b8dc0eeffff 51 ff15???????? 8d95dceeffff 52 ff15???????? 0fb785e0eeffff }
            // n = 7, score = 100
            //   8b8dc0eeffff         | mov                 ecx, dword ptr [ebp - 0x1140]
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8d95dceeffff         | lea                 edx, [ebp - 0x1124]
            //   52                   | push                edx
            //   ff15????????         |                     
            //   0fb785e0eeffff       | movzx               eax, word ptr [ebp - 0x1120]

        $sequence_3 = { 6a00 8b85e8fbffff 50 ff15???????? 8985e4fbffff c785e0fbffff00000000 6a00 }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   8b85e8fbffff         | mov                 eax, dword ptr [ebp - 0x418]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8985e4fbffff         | mov                 dword ptr [ebp - 0x41c], eax
            //   c785e0fbffff00000000     | mov    dword ptr [ebp - 0x420], 0
            //   6a00                 | push                0

        $sequence_4 = { 6a00 8d952cefffff 52 e8???????? 83c40c 6a10 6a00 }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   8d952cefffff         | lea                 edx, [ebp - 0x10d4]
            //   52                   | push                edx
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   6a10                 | push                0x10
            //   6a00                 | push                0

        $sequence_5 = { 81bdf0fdffffd2a0d405 0f84814c0000 81bdf0fdffffd369d405 0f8786000000 81bdf0fdffffd369d405 0f842d440000 81bdf0fdffff5868d405 }
            // n = 7, score = 100
            //   81bdf0fdffffd2a0d405     | cmp    dword ptr [ebp - 0x210], 0x5d4a0d2
            //   0f84814c0000         | je                  0x4c87
            //   81bdf0fdffffd369d405     | cmp    dword ptr [ebp - 0x210], 0x5d469d3
            //   0f8786000000         | ja                  0x8c
            //   81bdf0fdffffd369d405     | cmp    dword ptr [ebp - 0x210], 0x5d469d3
            //   0f842d440000         | je                  0x4433
            //   81bdf0fdffff5868d405     | cmp    dword ptr [ebp - 0x210], 0x5d46858

        $sequence_6 = { e9???????? 8bb540e5ffff e9???????? 8b8530e5ffff 8b048578f64100 f644060480 0f8455030000 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8bb540e5ffff         | mov                 esi, dword ptr [ebp - 0x1ac0]
            //   e9????????           |                     
            //   8b8530e5ffff         | mov                 eax, dword ptr [ebp - 0x1ad0]
            //   8b048578f64100       | mov                 eax, dword ptr [eax*4 + 0x41f678]
            //   f644060480           | test                byte ptr [esi + eax + 4], 0x80
            //   0f8455030000         | je                  0x35b

        $sequence_7 = { 0fba25????????01 0f82210a0000 57 8bf9 }
            // n = 4, score = 100
            //   0fba25????????01     |                     
            //   0f82210a0000         | jb                  0xa27
            //   57                   | push                edi
            //   8bf9                 | mov                 edi, ecx

        $sequence_8 = { a1???????? 8945f4 8b0d???????? 894df8 c78588efffff00000000 8d55e4 52 }
            // n = 7, score = 100
            //   a1????????           |                     
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   8b0d????????         |                     
            //   894df8               | mov                 dword ptr [ebp - 8], ecx
            //   c78588efffff00000000     | mov    dword ptr [ebp - 0x1078], 0
            //   8d55e4               | lea                 edx, [ebp - 0x1c]
            //   52                   | push                edx

        $sequence_9 = { 81bdf0fdffff4badd405 0f84b2240000 e9???????? 81bdf0fdffff46e1d405 7776 81bdf0fdffff46e1d405 }
            // n = 6, score = 100
            //   81bdf0fdffff4badd405     | cmp    dword ptr [ebp - 0x210], 0x5d4ad4b
            //   0f84b2240000         | je                  0x24b8
            //   e9????????           |                     
            //   81bdf0fdffff46e1d405     | cmp    dword ptr [ebp - 0x210], 0x5d4e146
            //   7776                 | ja                  0x78
            //   81bdf0fdffff46e1d405     | cmp    dword ptr [ebp - 0x210], 0x5d4e146

    condition:
        7 of them and filesize < 297984
}
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