Analysis
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max time kernel
122s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 12:12
Behavioral task
behavioral1
Sample
35c69ab07ba4fd97cb23a0351d7293b6.exe
Resource
win7-20231215-en
General
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Target
35c69ab07ba4fd97cb23a0351d7293b6.exe
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Size
1.0MB
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MD5
35c69ab07ba4fd97cb23a0351d7293b6
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SHA1
65c3a14d30364f80ebda6cd1b83c6f9633291c35
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SHA256
f6d38b7dda48f70fabd8cf49cfb5191ef8bb4f351629c06ec102630d852da81c
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SHA512
072d19611df7a7807a4edff57befe8568132925b493cc7484684b59ef7cee31649eca13adafd3023f0a444241af6e571325880760b534990dfbac6a71bba1a70
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SSDEEP
24576:GE6pfUKdYS7gd1OAWUN3YWpLfoYZc4Up3GR6reDPdNyE:GE6pfUHSM1Oz20Gc+TdN
Malware Config
Signatures
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Detects Echelon Stealer payload 2 IoCs
resource yara_rule behavioral1/files/0x000b00000001225f-9.dat family_echelon behavioral1/memory/2808-10-0x0000000000EE0000-0x00000000010A6000-memory.dmp family_echelon -
Executes dropped EXE 1 IoCs
pid Process 2808 Crypt.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral1/memory/2180-0-0x0000000000FE0000-0x00000000011E0000-memory.dmp vmprotect behavioral1/memory/2180-4-0x000000001B520000-0x000000001B5A0000-memory.dmp vmprotect behavioral1/files/0x000b00000001225f-9.dat vmprotect behavioral1/memory/2808-10-0x0000000000EE0000-0x00000000010A6000-memory.dmp vmprotect -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2808 Crypt.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2808 Crypt.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2180 wrote to memory of 2808 2180 35c69ab07ba4fd97cb23a0351d7293b6.exe 28 PID 2180 wrote to memory of 2808 2180 35c69ab07ba4fd97cb23a0351d7293b6.exe 28 PID 2180 wrote to memory of 2808 2180 35c69ab07ba4fd97cb23a0351d7293b6.exe 28 PID 2808 wrote to memory of 2024 2808 Crypt.exe 30 PID 2808 wrote to memory of 2024 2808 Crypt.exe 30 PID 2808 wrote to memory of 2024 2808 Crypt.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\35c69ab07ba4fd97cb23a0351d7293b6.exe"C:\Users\Admin\AppData\Local\Temp\35c69ab07ba4fd97cb23a0351d7293b6.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Users\Admin\AppData\Local\Temp\Crypt.exe"C:\Users\Admin\AppData\Local\Temp\Crypt.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2808 -s 12283⤵PID:2024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.0MB
MD50088abee944713ab183c41f3a2b07ea8
SHA1ea027d6de4b2feebfb35b4ebde88cdaab6d6e744
SHA2568ce4be0ab67c82e4f9023bbea4228430e56ef9ac133d377d75ecf2be75045111
SHA51298c88b5f4d4b30f922fbd219da691842649e7aa39eeac65a8b21ad0bdd9437ace260bdf744910690b3d004fda16f1f267f78c307741526e8ba6bde3558f4c64d