Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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 15 IoCs
Processes:
wscript.exeflow pid Process 4 1212 wscript.exe 5 1212 wscript.exe 7 1212 wscript.exe 11 1212 wscript.exe 15 1212 wscript.exe 18 1212 wscript.exe 21 1212 wscript.exe 26 1212 wscript.exe 30 1212 wscript.exe 35 1212 wscript.exe 39 1212 wscript.exe 41 1212 wscript.exe 44 1212 wscript.exe 50 1212 wscript.exe 56 1212 wscript.exe -
Executes dropped EXE 1 IoCs
Processes:
bin.exepid Process 540 bin.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
bin.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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 -
Loads dropped DLL 1 IoCs
Processes:
NAPSTAT.EXEpid Process 1804 NAPSTAT.EXE -
Suspicious use of SetThreadContext 2 IoCs
Processes:
bin.exeNAPSTAT.EXEdescription pid Process procid_target PID 540 set thread context of 1276 540 bin.exe 16 PID 1804 set thread context of 1276 1804 NAPSTAT.EXE 16 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
NAPSTAT.EXEdescription ioc Process Key created \Registry\User\S-1-5-21-3385717845-2518323428-350143044-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 NAPSTAT.EXE -
Suspicious behavior: EnumeratesProcesses 25 IoCs
Processes:
bin.exeNAPSTAT.EXEpid Process 540 bin.exe 540 bin.exe 540 bin.exe 540 bin.exe 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid Process 1276 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
bin.exeNAPSTAT.EXEpid Process 540 bin.exe 540 bin.exe 540 bin.exe 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE 1804 NAPSTAT.EXE -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
bin.exeNAPSTAT.EXEdescription pid Process Token: SeDebugPrivilege 540 bin.exe Token: SeDebugPrivilege 1804 NAPSTAT.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
wscript.exeExplorer.EXENAPSTAT.EXEdescription pid Process procid_target PID 1816 wrote to memory of 1212 1816 wscript.exe 28 PID 1816 wrote to memory of 1212 1816 wscript.exe 28 PID 1816 wrote to memory of 1212 1816 wscript.exe 28 PID 1816 wrote to memory of 540 1816 wscript.exe 29 PID 1816 wrote to memory of 540 1816 wscript.exe 29 PID 1816 wrote to memory of 540 1816 wscript.exe 29 PID 1816 wrote to memory of 540 1816 wscript.exe 29 PID 1276 wrote to memory of 1804 1276 Explorer.EXE 33 PID 1276 wrote to memory of 1804 1276 Explorer.EXE 33 PID 1276 wrote to memory of 1804 1276 Explorer.EXE 33 PID 1276 wrote to memory of 1804 1276 Explorer.EXE 33 PID 1804 wrote to memory of 1452 1804 NAPSTAT.EXE 35 PID 1804 wrote to memory of 1452 1804 NAPSTAT.EXE 35 PID 1804 wrote to memory of 1452 1804 NAPSTAT.EXE 35 PID 1804 wrote to memory of 1452 1804 NAPSTAT.EXE 35 PID 1804 wrote to memory of 1452 1804 NAPSTAT.EXE 35
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1276 -
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\MDCT091.js2⤵
- Suspicious use of WriteProcessMemory
PID:1816 -
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:1212
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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:540
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C:\Windows\SysWOW64\NAPSTAT.EXE"C:\Windows\SysWOW64\NAPSTAT.EXE"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:1452
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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
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Filesize
849KB
MD587f9e5a6318ac1ec5ee05aa94a919d7a
SHA17a9956e8de89603dba99772da29493d3fd0fe37d
SHA2567705b87603e0d772e1753441001fcf1ac2643ee41bf14a8177de2c056628665c
SHA512c45c03176142918e34f746711e83384572bd6a8ed0a005600aa4a18cf22eade06c76eda190b37db49ec1971c4649e086affd19eee108c5f405df27c0c8cb23d2