Analysis
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max time kernel
142s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2022, 16:01
Static task
static1
Behavioral task
behavioral1
Sample
584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe
Resource
win7-20220901-en
General
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Target
584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe
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Size
497KB
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MD5
e2ebde92d32ed6611d773db867964671
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SHA1
e75d1ea17bafef47b5bbbcb983dfbe3ca0bd95f1
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SHA256
584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542
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SHA512
3f02696ca793efd1aca61ae6f6c910fc60b1b517f8123aadf4a71f9a0c64efa9a4ff524a09813be2aedb25991d5a46099075c4b499dc3b62b8f2dd1f9cad2b02
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SSDEEP
12288:QYpCwVA5URb0Hmah3QgKbOmCZJUZboYvwgiRBd6:QOC1+Rb0Hmah6/sUZsYdwS
Malware Config
Extracted
pony
http://johnbrown.hol.es/xmas/gate.php
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2284 euf.exe 4236 euf.exe -
resource yara_rule behavioral2/memory/4236-137-0x0000000000400000-0x000000000041D000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation euf.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fsimes.vbs 584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts euf.exe -
Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook euf.exe -
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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2284 set thread context of 4236 2284 euf.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2284 euf.exe 2284 euf.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe Token: SeImpersonatePrivilege 4236 euf.exe Token: SeTcbPrivilege 4236 euf.exe Token: SeChangeNotifyPrivilege 4236 euf.exe Token: SeCreateTokenPrivilege 4236 euf.exe Token: SeBackupPrivilege 4236 euf.exe Token: SeRestorePrivilege 4236 euf.exe Token: SeIncreaseQuotaPrivilege 4236 euf.exe Token: SeAssignPrimaryTokenPrivilege 4236 euf.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4944 wrote to memory of 2284 4944 584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe 86 PID 4944 wrote to memory of 2284 4944 584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe 86 PID 4944 wrote to memory of 2284 4944 584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe 86 PID 2284 wrote to memory of 4236 2284 euf.exe 89 PID 2284 wrote to memory of 4236 2284 euf.exe 89 PID 2284 wrote to memory of 4236 2284 euf.exe 89 PID 4236 wrote to memory of 1620 4236 euf.exe 90 PID 4236 wrote to memory of 1620 4236 euf.exe 90 PID 4236 wrote to memory of 1620 4236 euf.exe 90 -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook euf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe"C:\Users\Admin\AppData\Local\Temp\584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542.exe"1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4944 -
C:\Users\Admin\AppData\Roaming\fefer\euf.exe"C:\Users\Admin\AppData\Roaming\fefer\euf.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Users\Admin\AppData\Roaming\fefer\euf.exe"C:\Users\Admin\AppData\Roaming\fefer\euf.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Accesses Microsoft Outlook accounts
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_win_path
PID:4236 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\240580593.bat" "C:\Users\Admin\AppData\Roaming\fefer\euf.exe" "4⤵PID:1620
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
94B
MD53880eeb1c736d853eb13b44898b718ab
SHA14eec9d50360cd815211e3c4e6bdd08271b6ec8e6
SHA256936d9411d5226b7c5a150ecaf422987590a8870c8e095e1caa072273041a86e7
SHA5123eaa3dddd7a11942e75acd44208fbe3d3ff8f4006951cd970fb9ab748c160739409803450d28037e577443504707fc310c634e9dc54d0c25e8cfe6094f017c6b
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Filesize
497KB
MD5e2ebde92d32ed6611d773db867964671
SHA1e75d1ea17bafef47b5bbbcb983dfbe3ca0bd95f1
SHA256584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542
SHA5123f02696ca793efd1aca61ae6f6c910fc60b1b517f8123aadf4a71f9a0c64efa9a4ff524a09813be2aedb25991d5a46099075c4b499dc3b62b8f2dd1f9cad2b02
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Filesize
497KB
MD5e2ebde92d32ed6611d773db867964671
SHA1e75d1ea17bafef47b5bbbcb983dfbe3ca0bd95f1
SHA256584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542
SHA5123f02696ca793efd1aca61ae6f6c910fc60b1b517f8123aadf4a71f9a0c64efa9a4ff524a09813be2aedb25991d5a46099075c4b499dc3b62b8f2dd1f9cad2b02
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Filesize
497KB
MD5e2ebde92d32ed6611d773db867964671
SHA1e75d1ea17bafef47b5bbbcb983dfbe3ca0bd95f1
SHA256584729a4abb31ff932a0428f909219590db3d0b3a530eeb52f9e5bb02196e542
SHA5123f02696ca793efd1aca61ae6f6c910fc60b1b517f8123aadf4a71f9a0c64efa9a4ff524a09813be2aedb25991d5a46099075c4b499dc3b62b8f2dd1f9cad2b02