Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
17-01-2023 13:59
Static task
static1
Behavioral task
behavioral1
Sample
MDCT091.js
Resource
win7-20221111-en
General
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Target
MDCT091.js
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Size
378KB
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MD5
484e1f6925d5957e9d486e420dc010b7
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SHA1
98e3648add4ab0724ebeb54eb720e8ad97ad52b0
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SHA256
9005a39c203e068daa077fe244e2608d36852dbef6f6ce8b28cc5cc015b89b1b
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SHA512
5b32912e30b446357ce6fe626b8136ae3262cdf4c60b7bc56b16171156a8979001a1a52168c0fe34b2b7526379b4519b7b04c86e17e18f40a62b7361acb0617c
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SSDEEP
6144:6V0EJTElOz43XdvK4tHOh6WfkHi4FjqWkQ2M4MMPpsiscuzAOgied24iD+:cJMW43NsZghqekPpNqAOgBd7iD+
Malware Config
Signatures
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Blocklisted process makes network request 16 IoCs
Processes:
wscript.exeflow pid Process 14 4932 wscript.exe 20 4932 wscript.exe 24 4932 wscript.exe 33 4932 wscript.exe 40 4932 wscript.exe 44 4932 wscript.exe 48 4932 wscript.exe 52 4932 wscript.exe 55 4932 wscript.exe 60 4932 wscript.exe 64 4932 wscript.exe 69 4932 wscript.exe 73 4932 wscript.exe 78 4932 wscript.exe 82 4932 wscript.exe 86 4932 wscript.exe -
Executes dropped EXE 1 IoCs
Processes:
bin.exepid Process 2276 bin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.exebin.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation wscript.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation bin.exe -
Drops startup file 2 IoCs
Processes:
wscript.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TzTlSUHDie.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TzTlSUHDie.js wscript.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
bin.exemstsc.exedescription pid Process procid_target PID 2276 set thread context of 2864 2276 bin.exe 46 PID 3180 set thread context of 2864 3180 mstsc.exe 46 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 4428 4128 WerFault.exe 89 -
Processes:
mstsc.exedescription ioc Process Key created \Registry\User\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 mstsc.exe -
Suspicious behavior: EnumeratesProcesses 50 IoCs
Processes:
bin.exemstsc.exepid Process 2276 bin.exe 2276 bin.exe 2276 bin.exe 2276 bin.exe 2276 bin.exe 2276 bin.exe 2276 bin.exe 2276 bin.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid Process 2864 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
bin.exemstsc.exepid Process 2276 bin.exe 2276 bin.exe 2276 bin.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe 3180 mstsc.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
bin.exemstsc.exeExplorer.EXEdescription pid Process Token: SeDebugPrivilege 2276 bin.exe Token: SeDebugPrivilege 3180 mstsc.exe Token: SeShutdownPrivilege 2864 Explorer.EXE Token: SeCreatePagefilePrivilege 2864 Explorer.EXE Token: SeShutdownPrivilege 2864 Explorer.EXE Token: SeCreatePagefilePrivilege 2864 Explorer.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
wscript.exeExplorer.EXEmstsc.exedescription pid Process procid_target PID 4388 wrote to memory of 4932 4388 wscript.exe 79 PID 4388 wrote to memory of 4932 4388 wscript.exe 79 PID 4388 wrote to memory of 2276 4388 wscript.exe 80 PID 4388 wrote to memory of 2276 4388 wscript.exe 80 PID 4388 wrote to memory of 2276 4388 wscript.exe 80 PID 2864 wrote to memory of 3180 2864 Explorer.EXE 88 PID 2864 wrote to memory of 3180 2864 Explorer.EXE 88 PID 2864 wrote to memory of 3180 2864 Explorer.EXE 88 PID 3180 wrote to memory of 4128 3180 mstsc.exe 89 PID 3180 wrote to memory of 4128 3180 mstsc.exe 89 PID 3180 wrote to memory of 4128 3180 mstsc.exe 89
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\MDCT091.js2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TzTlSUHDie.js"3⤵
- Blocklisted process makes network request
- Drops startup file
PID:4932
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C:\Users\Admin\AppData\Local\Temp\bin.exe"C:\Users\Admin\AppData\Local\Temp\bin.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2276
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C:\Windows\SysWOW64\mstsc.exe"C:\Windows\SysWOW64\mstsc.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3180 -
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:4128
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4128 -s 1244⤵
- Program crash
PID:4428
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 408 -p 4128 -ip 41281⤵PID:3060
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
185KB
MD5f9fdfca55156f35ea48a17947d091f4d
SHA115f10040cf10535deed5ca028150ed847a585d01
SHA2567258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0
SHA51253caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302
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Filesize
185KB
MD5f9fdfca55156f35ea48a17947d091f4d
SHA115f10040cf10535deed5ca028150ed847a585d01
SHA2567258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0
SHA51253caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302
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Filesize
18KB
MD590c052e2282de1c12470fc54d62681d9
SHA1ea069b254dde1f6cad46afedf55c69d4516a0d7a
SHA256be62476863ca538e76f33e4758a5a5af8609d681026c4e325d8d667470aa9097
SHA51273661062644236fcd76f689a8271f5f2c875468fbfdd4a4431a2b419c8bc093129345ee9b83d4f87eaa389a1ff12e776ba5d0d5845899931e1b72c32d4cb5ea7