Analysis
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max time kernel
153s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
19-02-2022 20:39
Static task
static1
Behavioral task
behavioral1
Sample
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe
Resource
win10v2004-en-20220113
General
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Target
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe
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Size
7KB
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MD5
c8fce40a1152013bb4388b82c47040a5
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SHA1
b666778f94542ede11764b96fec581423dd1e87f
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SHA256
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7
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SHA512
e72ab29693d61c8bf35b0858bf0b5844476ecf203e68f122811a7ee80493f9c410f9dccf35e10d9b6fc2b2a06bccdb3299d1d9f679677b8cfb248b56c32c0854
Malware Config
Signatures
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Upatre
Upatre is a generic malware downloader.
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Executes dropped EXE 1 IoCs
Processes:
szgfw.exepid process 4056 szgfw.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation 544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe -
Drops file in Windows directory 6 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
svchost.exedescription pid process Token: SeShutdownPrivilege 3080 svchost.exe Token: SeCreatePagefilePrivilege 3080 svchost.exe Token: SeShutdownPrivilege 3080 svchost.exe Token: SeCreatePagefilePrivilege 3080 svchost.exe Token: SeShutdownPrivilege 3080 svchost.exe Token: SeCreatePagefilePrivilege 3080 svchost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exedescription pid process target process PID 2000 wrote to memory of 4056 2000 544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe szgfw.exe PID 2000 wrote to memory of 4056 2000 544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe szgfw.exe PID 2000 wrote to memory of 4056 2000 544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe szgfw.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe"C:\Users\Admin\AppData\Local\Temp\544427acf9e0f95f3bf6aab0b6e38a54d5359897a5223a46c34c0a3346c1f6a7.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\szgfw.exe"C:\Users\Admin\AppData\Local\Temp\szgfw.exe"2⤵
- Executes dropped EXE
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\szgfw.exeMD5
4020718f364d669490811afd5a536d50
SHA1ce8b5749a0216f45d479fcc7c211d0763dcc3564
SHA25609fd47d653ea13d28de87fdaa85676939ab6405d2a9dff20e1a34ece59ff2acf
SHA512d32e26be31299197aa1c7a630f019bdf12118659ee3f5f7d6e3b8ec4437c10177f36beda0316ebefc4927b3a78f32b6feb5990a10730e3968ec97173e84fae36
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C:\Users\Admin\AppData\Local\Temp\szgfw.exeMD5
4020718f364d669490811afd5a536d50
SHA1ce8b5749a0216f45d479fcc7c211d0763dcc3564
SHA25609fd47d653ea13d28de87fdaa85676939ab6405d2a9dff20e1a34ece59ff2acf
SHA512d32e26be31299197aa1c7a630f019bdf12118659ee3f5f7d6e3b8ec4437c10177f36beda0316ebefc4927b3a78f32b6feb5990a10730e3968ec97173e84fae36
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memory/3080-132-0x0000025901F30000-0x0000025901F40000-memory.dmpFilesize
64KB
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memory/3080-133-0x0000025901F90000-0x0000025901FA0000-memory.dmpFilesize
64KB
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memory/3080-134-0x0000025904C70000-0x0000025904C74000-memory.dmpFilesize
16KB