Analysis
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max time kernel
190s -
max time network
184s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
24/04/2023, 14:27
Static task
static1
Behavioral task
behavioral1
Sample
2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe
Resource
win7-20230220-en
General
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Target
2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe
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Size
313.3MB
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MD5
3f4533e8364f96b90d7fcb413fc8b57c
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SHA1
cca3ec3606de5b4973e47ca10ad36742fb3e18ab
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SHA256
2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee
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SHA512
2027d0d09c928420d8cb54af252cef18c2582c4c0602cf7b49322d82c175d4a8a9687e179b907dfb787028f6e00272f458b768c319510e3b963a41ee1f4ef4db
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SSDEEP
98304:+cyNUURBkRBt1lHzdYnhdowc9cDbuHn5cFO:/ymURCzlHzdLK65D
Malware Config
Extracted
lumma
82.118.23.50
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1212 srvtst.exe -
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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1944 schtasks.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS chrome.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName chrome.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe Token: SeShutdownPrivilege 916 chrome.exe Token: SeShutdownPrivilege 916 chrome.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe -
Suspicious use of WriteProcessMemory 57 IoCs
description pid Process procid_target PID 2004 wrote to memory of 1996 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe 28 PID 2004 wrote to memory of 1996 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe 28 PID 2004 wrote to memory of 1996 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe 28 PID 2004 wrote to memory of 1996 2004 2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe 28 PID 1996 wrote to memory of 1944 1996 cmd.exe 30 PID 1996 wrote to memory of 1944 1996 cmd.exe 30 PID 1996 wrote to memory of 1944 1996 cmd.exe 30 PID 1996 wrote to memory of 1944 1996 cmd.exe 30 PID 916 wrote to memory of 320 916 chrome.exe 32 PID 916 wrote to memory of 320 916 chrome.exe 32 PID 916 wrote to memory of 320 916 chrome.exe 32 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 924 916 chrome.exe 34 PID 916 wrote to memory of 1976 916 chrome.exe 35 PID 916 wrote to memory of 1976 916 chrome.exe 35 PID 916 wrote to memory of 1976 916 chrome.exe 35 PID 1660 wrote to memory of 1212 1660 taskeng.exe 37 PID 1660 wrote to memory of 1212 1660 taskeng.exe 37 PID 1660 wrote to memory of 1212 1660 taskeng.exe 37 PID 1660 wrote to memory of 1212 1660 taskeng.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe"C:\Users\Admin\AppData\Local\Temp\2fc17c5966753c0b6fa31e15399fe8c7adf3f33785dfed3e9a7fae5c9040eaee.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Windows\SysWOW64\cmd.exe/C schtasks /tn \Diagnostic\jtuhoad /create /tr """"C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.exe""" """C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.txt"""" /st 00:03 /f /sc once /du 9900:20 /ri 12⤵
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\schtasks.exeschtasks /tn \Diagnostic\jtuhoad /create /tr """"C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.exe""" """C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.txt"""" /st 00:03 /f /sc once /du 9900:20 /ri 13⤵
- Creates scheduled task(s)
PID:1944
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --no-first-run --no-default-browser-check --noerrdialogs --disable-crash-reporter --disable-backgrounding-occluded-windows --disable-background-timer-throttling --disable-extensions-http-throttling --disable-renderer-backgrounding --disable-audio-output --silent-launch --restore-last-session --elevated --profile-directory="Default"1⤵
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:916 -
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef74f9758,0x7fef74f9768,0x7fef74f97782⤵PID:320
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --noerrdialogs --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1168 --field-trial-handle=1308,i,3114628880543086331,12447596306824629003,131072 /prefetch:22⤵PID:924
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-audio-output --noerrdialogs --mojo-platform-channel-handle=1536 --field-trial-handle=1308,i,3114628880543086331,12447596306824629003,131072 /prefetch:82⤵PID:1976
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C:\Windows\system32\taskeng.exetaskeng.exe {9D90A861-7C61-4176-868F-E957CFDAABDA} S-1-5-21-3499517378-2376672570-1134980332-1000:MLXLFKOI\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.exeC:\Users\Admin\AppData\Roaming\eujotsm\srvtst.exe "C:\Users\Admin\AppData\Roaming\eujotsm\srvtst.txt"2⤵
- Executes dropped EXE
PID:1212
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
872KB
MD5c56b5f0201a3b3de53e561fe76912bfd
SHA12a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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Filesize
872KB
MD5c56b5f0201a3b3de53e561fe76912bfd
SHA12a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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Filesize
132KB
MD586c8d08a436374893e2280e05aec2f26
SHA14c1adde16dea43f2d2d8c3990df3f7737fcc4d81
SHA25628beb98431319514c767d415d79bed7f2e1c71a0af8e425133a5185cf66a90f5
SHA512fd97e017fd1f2ec15bdeb2a04a9a39df8a2fd8b4a79c6cb3748f535cf5d4e540a343e7bd20b59bbdb958461078d420f81ab76238f865b82732992e6ccab19d96