Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
24/01/2024, 19:08
Behavioral task
behavioral1
Sample
72d1253567013982da303392fa5fdf69.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
72d1253567013982da303392fa5fdf69.exe
Resource
win10v2004-20231215-en
General
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Target
72d1253567013982da303392fa5fdf69.exe
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Size
183KB
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MD5
72d1253567013982da303392fa5fdf69
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SHA1
7da9835e7e94a7eb0d3e8bedcc5fba3b6ed07d33
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SHA256
6c1ad5aaf74abb724980992dd5bb7f35a4a6911e74bfb46a15291dc6937e78de
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SHA512
63af41de3fbc07c29e284ec69b368e5ed2231e3dc5c0fbf5ed9ed5ba9da178aed36833c75e23cbbdd9aa2b7336c407328635f217be900eedf16eea23c30878af
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SSDEEP
3072:EamFnQYUM6m3SP2sVSdEnfWZN3cbgonk9sX1qalYuhLJNdjQVVTuP5J85Vi9iqVl:Eazq3aipalYuhoao5sQkz9WS
Malware Config
Signatures
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Manipulates Digital Signatures 1 TTPs 2 IoCs
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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 regedit.exe Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\Trust Database\0\goicfboogidikkejccmclpieicihhlpo jimddp = "electronic-group" iaccess32.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0005000000018682-32.dat acprotect -
Executes dropped EXE 1 IoCs
pid Process 2664 iaccess32.exe -
Loads dropped DLL 3 IoCs
pid Process 2796 regsvr32.exe 2664 iaccess32.exe 2664 iaccess32.exe -
resource yara_rule behavioral1/memory/2372-0-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/files/0x0009000000012252-8.dat upx behavioral1/memory/2664-10-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2372-9-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2372-3-0x0000000000370000-0x000000000039E000-memory.dmp upx behavioral1/files/0x0005000000018682-32.dat upx behavioral1/memory/2796-33-0x0000000010000000-0x0000000010047000-memory.dmp upx behavioral1/files/0x0006000000018675-53.dat upx behavioral1/files/0x0006000000018675-44.dat upx behavioral1/memory/2664-84-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\egaccess4_1071.dll iaccess32.exe -
Drops file in Program Files directory 13 IoCs
description ioc Process File created C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e.ico iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\Common\module.php iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e_3_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\dialerexe.ini iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Multi\20110208070252\dialerexe.ini iaccess32.exe File created C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e_logo_2.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e_1_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e_2_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\medias\p2e_go_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110208070252\instant access.exe iaccess32.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File created C:\Windows\iaccess32.exe 72d1253567013982da303392fa5fdf69.exe File created C:\Windows\tmlpcert2007 iaccess32.exe File created C:\Windows\dialexe.zl iaccess32.exe File created C:\Windows\dialexe.epk iaccess32.exe File created C:\Windows\dialerexe.ini iaccess32.exe File created C:\Windows\egdhtm_pack.epk iaccess32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Internet Explorer\Main iaccess32.exe -
Modifies registry class 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ = "C:\\Windows\\SysWow64\\egaccess4_1071.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32 regsvr32.exe -
Runs regedit.exe 1 IoCs
pid Process 2864 regedit.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2372 72d1253567013982da303392fa5fdf69.exe 2664 iaccess32.exe 2664 iaccess32.exe 2664 iaccess32.exe 2664 iaccess32.exe 2664 iaccess32.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2372 wrote to memory of 2664 2372 72d1253567013982da303392fa5fdf69.exe 28 PID 2372 wrote to memory of 2664 2372 72d1253567013982da303392fa5fdf69.exe 28 PID 2372 wrote to memory of 2664 2372 72d1253567013982da303392fa5fdf69.exe 28 PID 2372 wrote to memory of 2664 2372 72d1253567013982da303392fa5fdf69.exe 28 PID 2664 wrote to memory of 2864 2664 iaccess32.exe 29 PID 2664 wrote to memory of 2864 2664 iaccess32.exe 29 PID 2664 wrote to memory of 2864 2664 iaccess32.exe 29 PID 2664 wrote to memory of 2864 2664 iaccess32.exe 29 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30 PID 2664 wrote to memory of 2796 2664 iaccess32.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\72d1253567013982da303392fa5fdf69.exe"C:\Users\Admin\AppData\Local\Temp\72d1253567013982da303392fa5fdf69.exe"1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\iaccess32.exeC:\Windows\iaccess32.exe2⤵
- Manipulates Digital Signatures
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Windows\SysWOW64\regedit.exe"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert20073⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:2864
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C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"3⤵
- Loads dropped DLL
- Modifies registry class
PID:2796
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
618B
MD5d4a5089ff2e7c0eaa42dcf6ac0d86c4a
SHA1e8049be5c416513e176d51e41105651ad2891ffd
SHA256b63bfb98d1542a65fdb238d33a7eb02601f0265cc115f1d8c0ac3060e375a812
SHA5124a741c4c92824a3989d98692938b7efbff787231d346b61146de48b9843efa0a623ed97cd86e1012d1808362e72d45d685977ff7cca7c92ce1b5fc2b91a88b0d
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Filesize
2KB
MD5997a79f327a371cf34c0f5bc580cdb1d
SHA1ad0c6487e648d8af50a351f4fe7ab4116a354d48
SHA256cd01ac91ce274d0222a2a6e131f009418324cad075fb09b60f3738cb6aaf94bb
SHA5126bb566c6e913220be5e7eda5027e2cd302470db746c4e5e20eeb04e6f9039c80c88cf363da35f3df30c8e50a6dd8c268902fc00c091bdf0beffbeb7c33a934fe
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Filesize
183KB
MD5b4488211876c990ff309fce3ffa7cad3
SHA1eaed6b4bb91a0de9a00ddab9ac9952b3134c79ea
SHA2569159d7f7e2773213f176f5d94645371e62595ceeb5bac488c8a81129028ad59a
SHA512bfe4f1a00301865c95855254c18d4621bcfb6fda8ad3cec72fb7a3c1078b1becaf88b47138ca2f719f74c5744530a16b6aef004efc9307a8f1b06d93aca471b4
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Filesize
6KB
MD5b103757bc3c714123b5efa26ff96a915
SHA1991d6694c71736b59b9486339be44ae5e2b66fef
SHA256eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48
SHA512d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1
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Filesize
160KB
MD53061262359cce844a82e4caeb59f44af
SHA105036dfc08985a6777531524beb3cb134694d7f5
SHA256170130ab22f18f9ca27f2b80ff72e339037ce026bc3f25d0fa72e33ed9cc175c
SHA5124a9cc429cce58535fcada3d0ef1c56a3bdb19156e65fafd31664a7d387d4ac55d81b79ee6d3319131670c138dd8e250e6a38c118584794e71121868c23ce756d
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Filesize
153KB
MD5e6b15ee96211a23bdc616c2aa05b011f
SHA11adb0c0224ce719db298a003533dad01bc48d602
SHA25646fa62ee6c7cdb44c2d2eea8e6800e6e9f1153180a52ad86538a70b365e73d63
SHA51229c1320e4d5d3f5bb4e651de09714754773c99904c591df06ed192da1b206302e2f0b6ccdb18cfd4253dd46677512f1802fe15620ede72658462f8f93c362f15
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Filesize
76KB
MD5b83f652ffa76451ae438954f89c02f62
SHA1b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd
SHA256f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f
SHA512965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83