Analysis
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max time kernel
119s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-09-2024 12:39
Static task
static1
Behavioral task
behavioral1
Sample
1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe
Resource
win10v2004-20240802-en
General
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Target
1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe
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Size
234KB
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MD5
f2c86894eaf1eb32a0504c7540220290
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SHA1
aec00cfdacc0f0f8ae8d3cdb8dda61fb87245e3a
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SHA256
1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9
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SHA512
55c31a3953d4d4c277daebbdf61ed4f555e5631946ec57abec0914464404e2685cd6ccf09230a6f3d038614ee653e7a4ebf735ef7686abfc06ace0a45b22a41c
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SSDEEP
3072:h5xP/oznBDojDW2tozrwy6CB3bBLdK7SAI9ud8Qq2sNNIOzpfH9S6jlRDNNAXFk+:hr5XRouCB3hd62uyQq2sR5dn5NIFk+
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 3008 MuiUkmgr.exe 2032 ~CBD7.tmp 768 drvill32.exe -
Loads dropped DLL 3 IoCs
pid Process 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 3008 MuiUkmgr.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\drvill32 = "C:\\Users\\Admin\\AppData\\Roaming\\makecont\\MuiUkmgr.exe" 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\drvill32.exe 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MuiUkmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language drvill32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3008 MuiUkmgr.exe 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE 1248 Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3008 MuiUkmgr.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2860 wrote to memory of 3008 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 30 PID 2860 wrote to memory of 3008 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 30 PID 2860 wrote to memory of 3008 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 30 PID 2860 wrote to memory of 3008 2860 1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe 30 PID 3008 wrote to memory of 2032 3008 MuiUkmgr.exe 31 PID 3008 wrote to memory of 2032 3008 MuiUkmgr.exe 31 PID 3008 wrote to memory of 2032 3008 MuiUkmgr.exe 31 PID 3008 wrote to memory of 2032 3008 MuiUkmgr.exe 31 PID 2032 wrote to memory of 1248 2032 ~CBD7.tmp 21
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1248 -
C:\Users\Admin\AppData\Local\Temp\1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe"C:\Users\Admin\AppData\Local\Temp\1ffc5e27d5aca993bb3426c576e15499eb85bc16acb94c3755b456839e5b34c9N.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Roaming\makecont\MuiUkmgr.exe"C:\Users\Admin\AppData\Roaming\makecont"3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Users\Admin\AppData\Local\Temp\~CBD7.tmp1248 239624 3008 14⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2032
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C:\Windows\SysWOW64\drvill32.exeC:\Windows\SysWOW64\drvill32.exe -s1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:768
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD586dc243576cf5c7445451af37631eea9
SHA199a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA25625d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4
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Filesize
234KB
MD5a24f7272a2c46bf426591782125bb777
SHA1e21213e0160536285efa8f601e9e1f72dd5532ed
SHA25653b95a760084d4149b6a4707fc86719c22c774023fca43cf64c915f1b6d7ac52
SHA51271ebacac6a264990d6ac8035eab7043ff59afbf2f050eda2db3d3d5a7770082bcc83c855309e1b0b6af99113daf8096d1670b48aaf7bc35a665c5dbac0c9d482