Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
18-10-2022 21:50
General
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Target
81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a.exe
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Size
227KB
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MD5
51e5a087d3ef2140a2b4b921cec3de42
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SHA1
2b4bc51bc96cf3cbf50ffe03b5819fb812a34c19
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SHA256
81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a
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SHA512
9a23fe082db3896cc1a268fde0fefb16d495a563708171cb475afd4148f56877ee777bf2edf8bd9a9f630322d4bebd2be5518166c7d47a9d823f78a4498f4f1f
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SSDEEP
3072:YsXRmUIMitiMQose27vc+Eld+xZp2vPRL1tT06zJoxAWBcKpSP//dwRmRuq:ZR5IuMQoseGk7RZBGxAycKpSPX2Fq
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 3 IoCs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
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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.
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Delays execution with timeout.exe 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a.exe"C:\Users\Admin\AppData\Local\Temp\81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe"C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe"2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn Admin /tr "\"C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe\" arguments" /sc MINUTE /mo 13⤵
- Creates scheduled task(s)
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\??\c:\windows\microsoft.net\framework\v2.0.50727\InstallUtil.exe"c:\windows\microsoft.net\framework\v2.0.50727\\InstallUtil.exe" C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe"2⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 && del "C:\Users\Admin\AppData\Local\Temp\81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a.exe" && del "C:\Users\Admin\AppData\Local\Temp\81afd25a71243d161133a5eed7100c93ea9035019b54d604b0b1b81052ee975a.exe.config"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
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C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exeC:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe arguments1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exeC:\Users\Admin\AppData\Local\_foldernamelocalappdata_\KBDCHERP32.exe arguments1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
595B
MD55446caf843683ea0aab610c729c40ab1
SHA16df96e9c6c90843766b0fde8cec5e3a955291e74
SHA256f7dbd089564c22c13483b867392a7bd1f9b49f8e0b089e2cc7bd7bfbf62c6329
SHA512488e2b8750ff820e3fbdcbb9201abddfc6c8ccc3e7cc29962a05c2313ea862eddbf4e0a49ab6a5029aa4d9c137daf2623f1b34e4dcb896269e6edae8276148ff
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Filesize
227KB
MD584dd61e52b121026079785c7c902841d
SHA16c0caeee49338c8b499bdb252da3059505023715
SHA25671826bb753cb523ed15363c8875d2cdf5356862b86725c9284e32b41881a265f
SHA51295ffbbb4c3833f8fc0f1224734c873a9ecca74847a9296d0d0a5623f5a765f34500d03d0da121c6d3c58241434382f7bd15492711f0d0182de67bd58186480a1
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Filesize
227KB
MD584dd61e52b121026079785c7c902841d
SHA16c0caeee49338c8b499bdb252da3059505023715
SHA25671826bb753cb523ed15363c8875d2cdf5356862b86725c9284e32b41881a265f
SHA51295ffbbb4c3833f8fc0f1224734c873a9ecca74847a9296d0d0a5623f5a765f34500d03d0da121c6d3c58241434382f7bd15492711f0d0182de67bd58186480a1
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Filesize
227KB
MD584dd61e52b121026079785c7c902841d
SHA16c0caeee49338c8b499bdb252da3059505023715
SHA25671826bb753cb523ed15363c8875d2cdf5356862b86725c9284e32b41881a265f
SHA51295ffbbb4c3833f8fc0f1224734c873a9ecca74847a9296d0d0a5623f5a765f34500d03d0da121c6d3c58241434382f7bd15492711f0d0182de67bd58186480a1
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Filesize
227KB
MD584dd61e52b121026079785c7c902841d
SHA16c0caeee49338c8b499bdb252da3059505023715
SHA25671826bb753cb523ed15363c8875d2cdf5356862b86725c9284e32b41881a265f
SHA51295ffbbb4c3833f8fc0f1224734c873a9ecca74847a9296d0d0a5623f5a765f34500d03d0da121c6d3c58241434382f7bd15492711f0d0182de67bd58186480a1
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Filesize
1KB
MD5dd3d04c365984b4ec57a80503f81fddf
SHA1c55fbcb61818e47dac9aae465faff91f0805bd7c
SHA25640a59ca9744dc3d4647f246b2dc553f37f8095418c1b48a9bd94cdb5c03dbc5c
SHA5120dd459def2abe9e3f0d1251049a0755c63f7dd3d85e91dba272c3f479f2578e3f3f2379e1cd6913190f7f596af721201eb5d9423ab28aed72bde5cd3cac7f785
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Filesize
10.2MB
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Filesize
10.2MB
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Filesize
16KB
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Filesize
16KB
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Filesize
20KB
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Filesize
10.2MB
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Filesize
20KB
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Filesize
12KB
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Filesize
12KB
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Filesize
20KB
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Filesize
20KB
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Filesize
12KB
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Filesize
12KB
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Filesize
10.2MB
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Filesize
32KB
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Filesize
5.7MB
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Filesize
5.7MB
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