Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 17:04
Static task
static1
Behavioral task
behavioral1
Sample
8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe
Resource
win10v2004-20220812-en
General
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Target
8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe
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Size
952KB
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MD5
e738581ccc00d7bc7ce7500d03873a0a
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SHA1
dcc9aad1621a2cb309c719201f3c295705f04a3a
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SHA256
8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82
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SHA512
cff79366429c61baea483698aa3cc1b387561ec7c7a71366ba15df1fee1b327ac780535f34a2fd34b812f7165a280838c1cbb4a77f19b477587efac761e424d4
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SSDEEP
12288:3VcFBopB3yxaWHOP0T7M6SY+Kz4X48E85adAN2/amL8rZ1z8bcr29GRSQ31qDP6Y:+FeXxMnnwTt18Qr29GRSCeA1U
Malware Config
Signatures
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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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\systemlog = "\\systemlog32\\syslog.exe" 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\systemlog = "C:\\Users\\Admin\\AppData\\Roaming\\systemlog32\\syslog.exe" 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe File opened for modification C:\Windows\assembly\Desktop.ini 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3060 set thread context of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe File created C:\Windows\assembly\Desktop.ini 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe File opened for modification C:\Windows\assembly\Desktop.ini 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4896 schtasks.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3372 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3372 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe Token: SeDebugPrivilege 3372 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3372 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3060 wrote to memory of 4896 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 78 PID 3060 wrote to memory of 4896 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 78 PID 3060 wrote to memory of 4896 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 78 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80 PID 3060 wrote to memory of 3372 3060 8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe"C:\Users\Admin\AppData\Local\Temp\8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Update\Google Update" /XML "C:\Users\Admin\AppData\Local\Temp\asssss.xml"2⤵
- Creates scheduled task(s)
PID:4896
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C:\Users\Admin\AppData\Local\Temp\8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe"C:\Users\Admin\AppData\Local\Temp\8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe"2⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3372
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\8fbf108ecc9b03caa1527714df9d53f10001820dd243e6b35fc41edc93ae1a82.exe.log
Filesize319B
MD5a4da81a3544d9cd85f257967c0a431fe
SHA1ba6f59ae5c6a2674a1fda758b5ded92f76d5edb3
SHA256ad372efe5e610b9c2a331ac8f17f83542ef78b92c875c206d76c84e158fb271e
SHA51212348d4cb4b6534a43f122d18fc7276c524c5b7e8f242f446eefb4d2ffea8018aed53a854cb840b2f30669caf74d14daff4276c6676a15221c58c84b210d393f
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Filesize
1KB
MD5edf66591eebdc49a91897516ab9c7cc3
SHA1d2f119368668a3604ebbd628d31fbef39499495c
SHA256ac6c76420cb4d4f8501b22992b22a082f491dd886acdb67ee4b6caf101670680
SHA5124c3c1729d3347fb9abf9f8e63beaab1faeff26cd130ee823dd26403efa3fc9072f0f86f5cae27e8db2761f32f525c43fa05875eea659209c2ea3826737568773