Analysis
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max time kernel
119s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 22:54
Behavioral task
behavioral1
Sample
bf2c623b725540d0fa1440c30266a791.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
bf2c623b725540d0fa1440c30266a791.exe
Resource
win10v2004-20240226-en
General
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Target
bf2c623b725540d0fa1440c30266a791.exe
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Size
2.6MB
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MD5
bf2c623b725540d0fa1440c30266a791
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SHA1
89cd88f8b752b8631a008c033ee7d213e853e183
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SHA256
70d019a374b0d3f2c9afe89c422fbd5300ae767afb04e6876a26db5cce3ad784
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SHA512
342890097ae06403f2e4817830f08ef0f65990c0083d0a08ba0338e031b18f12cde8735d3e30db03f1e04e722f30e300349c5adf58d580f9d7bdaf154ee13bca
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SSDEEP
49152:ToDL9xOF57DKktdHsBlZW9pHjtYY7IsL+jKVb/ay3:8i7DZ3SlWtN3iUD3
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1624 bf2c623b725540d0fa1440c30266a791.exe -
Executes dropped EXE 1 IoCs
pid Process 1624 bf2c623b725540d0fa1440c30266a791.exe -
Loads dropped DLL 1 IoCs
pid Process 1660 bf2c623b725540d0fa1440c30266a791.exe -
resource yara_rule behavioral1/memory/1660-1-0x0000000000400000-0x0000000000D9E000-memory.dmp upx behavioral1/files/0x0009000000014b70-15.dat upx behavioral1/files/0x0009000000014b70-11.dat upx -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 bf2c623b725540d0fa1440c30266a791.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 0400000001000000100000000cd2f9e0da1773e9ed864da5e370e74e14000000010000001400000079b459e67bb6e5e40173800888c81a58f6e99b6e030000000100000014000000cabd2a79a1076a31f21d253635cb039d4329a5e80f00000001000000200000003f0411ede9c4477057d57e57883b1f205b20cdc0f3263129b1ee0269a2678f631900000001000000100000002fe1f70bb05d7c92335bc5e05b984da620000000010000006f0500003082056b30820353a0030201020211008210cfb0d240e3594463e0bb63828b00300d06092a864886f70d01010b0500304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f74205831301e170d3135303630343131303433385a170d3335303630343131303433385a304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f7420583130820222300d06092a864886f70d01010105000382020f003082020a0282020100ade82473f41437f39b9e2b57281c87bedcb7df38908c6e3ce657a078f775c2a2fef56a6ef6004f28dbde68866c4493b6b163fd14126bbf1fd2ea319b217ed1333cba48f5dd79dfb3b8ff12f1219a4bc18a8671694a66666c8f7e3c70bfad292206f3e4c0e680aee24b8fb7997e94039fd347977c99482353e838ae4f0a6f832ed149578c8074b6da2fd0388d7b0370211b75f2303cfa8faeddda63abeb164fc28e114b7ecf0be8ffb5772ef4b27b4ae04c12250c708d0329a0e15324ec13d9ee19bf10b34a8c3f89a36151deac870794f46371ec2ee26f5b9881e1895c34796c76ef3b906279e6dba49a2f26c5d010e10eded9108e16fbb7f7a8f7c7e50207988f360895e7e237960d36759efb0e72b11d9bbc03f94905d881dd05b42ad641e9ac0176950a0fd8dfd5bd121f352f28176cd298c1a80964776e4737baceac595e689d7f72d689c50641293e593edd26f524c911a75aa34c401f46a199b5a73a516e863b9e7d72a712057859ed3e5178150b038f8dd02f05b23e7b4a1c4b730512fcc6eae050137c439374b3ca74e78e1f0108d030d45b7136b407bac130305c48b7823b98a67d608aa2a32982ccbabd83041ba2830341a1d605f11bc2b6f0a87c863b46a8482a88dc769a76bf1f6aa53d198feb38f364dec82b0d0a28fff7dbe21542d422d0275de179fe18e77088ad4ee6d98b3ac6dd27516effbc64f533434f0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e0416041479b459e67bb6e5e40173800888c81a58f6e99b6e300d06092a864886f70d01010b05000382020100551f58a9bcb2a850d00cb1d81a6920272908ac61755c8a6ef882e5692fd5f6564bb9b8731059d321977ee74c71fbb2d260ad39a80bea17215685f1500e59ebcee059e9bac915ef869d8f8480f6e4e99190dc179b621b45f06695d27c6fc2ea3bef1fcfcbd6ae27f1a9b0c8aefd7d7e9afa2204ebffd97fea912b22b1170e8ff28a345b58d8fc01c954b9b826cc8a8833894c2d843c82dfee965705ba2cbbf7c4b7c74e3b82be31c822737392d1c280a43939103323824c3c9f86b255981dbe29868c229b9ee26b3b573a82704ddc09c789cb0a074d6ce85d8ec9efceabc7bbb52b4e45d64ad026cce572ca086aa595e315a1f7a4edc92c5fa5fbffac28022ebed77bbbe3717b9016d3075e46537c3707428cd3c4969cd599b52ae0951a8048ae4c3907cecc47a452952bbab8fbadd233537de51d4d6dd5a1b1c7426fe64027355ca328b7078de78d3390e7239ffb509c796c46d5b415b3966e7e9b0c963ab8522d3fd65be1fb08c284fe24a8a389daac6ae1182ab1a843615bd31fdc3b8d76f22de88d75df17336c3d53fb7bcb415fffdca2d06138e196b8ac5d8b37d775d533c09911ae9d41c1727584be0241425f67244894d19b27be073fb9b84f817451e17ab7ed9d23e2bee0d52804133c31039edd7a6c8fc60718c67fde478e3f289e0406cfa5543477bdec899be91743df5bdb5ffe8e1e57a2cd409d7e6222dade1827 bf2c623b725540d0fa1440c30266a791.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405 bf2c623b725540d0fa1440c30266a791.exe Set value (data) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405\Blob = 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 bf2c623b725540d0fa1440c30266a791.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1660 bf2c623b725540d0fa1440c30266a791.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1660 bf2c623b725540d0fa1440c30266a791.exe 1624 bf2c623b725540d0fa1440c30266a791.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1660 wrote to memory of 1624 1660 bf2c623b725540d0fa1440c30266a791.exe 28 PID 1660 wrote to memory of 1624 1660 bf2c623b725540d0fa1440c30266a791.exe 28 PID 1660 wrote to memory of 1624 1660 bf2c623b725540d0fa1440c30266a791.exe 28 PID 1660 wrote to memory of 1624 1660 bf2c623b725540d0fa1440c30266a791.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\bf2c623b725540d0fa1440c30266a791.exe"C:\Users\Admin\AppData\Local\Temp\bf2c623b725540d0fa1440c30266a791.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Users\Admin\AppData\Local\Temp\bf2c623b725540d0fa1440c30266a791.exeC:\Users\Admin\AppData\Local\Temp\bf2c623b725540d0fa1440c30266a791.exe2⤵
- Deletes itself
- Executes dropped EXE
- Modifies system certificate store
- Suspicious use of UnmapMainImage
PID:1624
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.4MB
MD57c8ff9b2d04541a1f69bd48f1dbadfc1
SHA184f36c5cac17d054183ba7f8bd75534d48cc6604
SHA2564f4ae0037cd7283b99cac50f3763fe18760ae21eec0fc2715519b18878087fbf
SHA512137e258fb45ae7abbfb904b36325037ec749ac2298adf62c923d561b35f99845bb3a2e69a0731ad65cdb1ff95e6108bdfa9e2ecf7af08084bb173622a35cff46
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Filesize
2.5MB
MD5cebae0ab4c118ad70f80826a3e48801f
SHA1d360d34b1d8c4d73d9f6b31ba2d71a4692f795e8
SHA25626d0a9b28c40adf894c6122ab03d41a062db173c1d3441bacf814c14f584ff9f
SHA512ea52c4363f7df0e70151ab4ccd86d3176c3bf3ad89e3b24a13df9a7fc70fcd7b4c2e8d1f80b1e35a38f263174e986400ce1fca5769fae834e0e552076a651319