Analysis
- max time kernel
147s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/04/2024, 15:47
General
- Target SecuriteInfo.com.Win32.CrypterX-gen.18591.5918.exe
- Size 359KB
- Sample240404-s8ab2scd27
- SHA256 78243e0c019f05b2ae0f00c1396c12b2eaa9e32e72a152a5e3a45370d2ecfa64
Malware Config
Extracted
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stealc
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http://185.172.128.209
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url_path
/3cd2b41cbde8fc9c.php
Signatures
- Detect ZGRat V1 3 IoCs
- Stealc
Stealc is an infostealer written in C++.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.18591.5918.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.18591.5918.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u2s.0.exe"C:\Users\Admin\AppData\Local\Temp\u2s.0.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HIIIIEGHDG.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\HIIIIEGHDG.exe"C:\Users\Admin\AppData\Local\Temp\HIIIIEGHDG.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HIIIIEGHDG.exe5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 24563⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u2s.1.exe"C:\Users\Admin\AppData\Local\Temp\u2s.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 876 -ip 8761⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
HIIIIEGHDG.exe
u2s.0.exe
u2s.1.exe
memory/100-1-0x0000000002D50000-0x0000000002E50000-memory.dmp
memory/100-2-0x00000000048F0000-0x000000000495C000-memory.dmp
memory/100-3-0x0000000000400000-0x0000000002B83000-memory.dmp
memory/100-26-0x0000000000400000-0x0000000002B83000-memory.dmp
memory/100-27-0x00000000048F0000-0x000000000495C000-memory.dmp
memory/876-15-0x0000000000400000-0x0000000002B7B000-memory.dmp
memory/876-33-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/876-127-0x0000000000400000-0x0000000002B7B000-memory.dmp
memory/876-14-0x0000000002C40000-0x0000000002C67000-memory.dmp
memory/876-13-0x0000000002C90000-0x0000000002D90000-memory.dmp
memory/876-154-0x0000000000400000-0x0000000002B7B000-memory.dmp
memory/2112-28-0x0000000002680000-0x0000000002681000-memory.dmp
memory/2112-128-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2112-145-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4100-161-0x000001AB0A240000-0x000001AB0A254000-memory.dmp
memory/4100-173-0x000001AB08A70000-0x000001AB08A7A000-memory.dmp
memory/4100-198-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-157-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-156-0x000001AB23EB0000-0x000001AB23FC0000-memory.dmp
memory/4100-159-0x000001AB0A250000-0x000001AB0A25C000-memory.dmp
memory/4100-197-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-158-0x000001AB0A230000-0x000001AB0A240000-memory.dmp
memory/4100-146-0x00007FFEF9DB0000-0x00007FFEFA871000-memory.dmp
memory/4100-162-0x000001AB0A270000-0x000001AB0A294000-memory.dmp
memory/4100-196-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-167-0x000001AB08A60000-0x000001AB08A6A000-memory.dmp
memory/4100-168-0x000001AB23BD0000-0x000001AB23C82000-memory.dmp
memory/4100-169-0x000001AB23C80000-0x000001AB23CAA000-memory.dmp
memory/4100-170-0x000001AB23DD0000-0x000001AB23E4A000-memory.dmp
memory/4100-172-0x000001AB241E0000-0x000001AB24256000-memory.dmp
memory/4100-171-0x000001AB24100000-0x000001AB24162000-memory.dmp
memory/4100-147-0x000001AB04D40000-0x000001AB08638000-memory.dmp
memory/4100-177-0x000001AB24260000-0x000001AB24560000-memory.dmp
memory/4100-179-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-181-0x000001AB28BD0000-0x000001AB28BD8000-memory.dmp
memory/4100-180-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4100-182-0x000001AB28550000-0x000001AB28588000-memory.dmp
memory/4100-183-0x000001AB28520000-0x000001AB2852E000-memory.dmp
memory/4100-184-0x000001AB285C0000-0x000001AB285CA000-memory.dmp
memory/4100-185-0x000001AB29400000-0x000001AB29422000-memory.dmp
memory/4100-186-0x000001AB29960000-0x000001AB29E88000-memory.dmp
memory/4100-189-0x000001AB29470000-0x000001AB294C0000-memory.dmp
memory/4100-190-0x000001AB29420000-0x000001AB2942C000-memory.dmp
memory/4100-191-0x000001AB29740000-0x000001AB29762000-memory.dmp
memory/4100-192-0x000001AB29770000-0x000001AB2978E000-memory.dmp
memory/4100-194-0x00007FFEF9DB0000-0x00007FFEFA871000-memory.dmp
memory/4100-195-0x000001AB23CC0000-0x000001AB23CD0000-memory.dmp
memory/4844-165-0x00000000722E0000-0x0000000072A90000-memory.dmp
memory/4844-160-0x00000000722E0000-0x0000000072A90000-memory.dmp
memory/4844-155-0x0000000000860000-0x0000000000880000-memory.dmp