Analysis
- max time kernel
128s - max time network
133s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
16/05/2024, 10:45
General
- Target 01bc3e1b8cbd5fb66f32536422fadecc7fbf1510427be58036dda38248efaac1.exe
- Size 373KB
- Sample240516-mts8qagg7v
- SHA256 01bc3e1b8cbd5fb66f32536422fadecc7fbf1510427be58036dda38248efaac1
Malware Config
Extracted
-
stealc
-
default100
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Executes dropped EXE 2 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.
- Suspicious behavior: EnumeratesProcesses 21 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\01bc3e1b8cbd5fb66f32536422fadecc7fbf1510427be58036dda38248efaac1.exe"C:\Users\Admin\AppData\Local\Temp\01bc3e1b8cbd5fb66f32536422fadecc7fbf1510427be58036dda38248efaac1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ucs.0.exe"C:\Users\Admin\AppData\Local\Temp\ucs.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\ucs.1.exe"C:\Users\Admin\AppData\Local\Temp\ucs.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
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
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 460 -s 11642⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 460 -ip 4601⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
ucs.0.exe
ucs.1.exe
memory/460-28-0x0000000002200000-0x000000000226C000-memory.dmp
memory/460-27-0x0000000000400000-0x00000000004A7000-memory.dmp
memory/460-29-0x0000000000400000-0x000000000046F000-memory.dmp
memory/460-1-0x0000000000760000-0x0000000000860000-memory.dmp
memory/460-2-0x0000000002200000-0x000000000226C000-memory.dmp
memory/460-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/1608-22-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1608-91-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1608-104-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3688-169-0x0000000000400000-0x0000000000793000-memory.dmp
memory/3688-87-0x0000000000400000-0x0000000000793000-memory.dmp
memory/3688-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3688-31-0x0000000000400000-0x0000000000793000-memory.dmp
memory/3688-129-0x0000000000400000-0x0000000000793000-memory.dmp
memory/4208-111-0x0000026761740000-0x000002676174A000-memory.dmp
memory/4208-125-0x0000026765E00000-0x0000026765E08000-memory.dmp
memory/4208-112-0x0000026761910000-0x00000267619C2000-memory.dmp
memory/4208-113-0x0000026761770000-0x000002676179A000-memory.dmp
memory/4208-114-0x0000026761A10000-0x0000026761A60000-memory.dmp
memory/4208-115-0x0000026761A60000-0x0000026761A82000-memory.dmp
memory/4208-116-0x0000026748B10000-0x0000026748B1A000-memory.dmp
memory/4208-120-0x0000026761A90000-0x0000026761D90000-memory.dmp
memory/4208-122-0x0000026765710000-0x0000026765718000-memory.dmp
memory/4208-123-0x0000026765E20000-0x0000026765E58000-memory.dmp
memory/4208-124-0x0000026765DE0000-0x0000026765DEE000-memory.dmp
memory/4208-110-0x0000026761710000-0x0000026761734000-memory.dmp
memory/4208-126-0x0000026765EA0000-0x0000026765EAA000-memory.dmp
memory/4208-127-0x0000026766790000-0x00000267667F2000-memory.dmp
memory/4208-128-0x0000026766500000-0x0000026766522000-memory.dmp
memory/4208-109-0x0000026748B40000-0x0000026748B54000-memory.dmp
memory/4208-130-0x0000026766D20000-0x0000026767248000-memory.dmp
memory/4208-133-0x0000026766520000-0x000002676652C000-memory.dmp
memory/4208-134-0x0000026766600000-0x0000026766676000-memory.dmp
memory/4208-138-0x0000026766560000-0x000002676657E000-memory.dmp
memory/4208-107-0x0000026747320000-0x0000026747330000-memory.dmp
memory/4208-108-0x0000026748B50000-0x0000026748B5C000-memory.dmp
memory/4208-106-0x00000267615C0000-0x00000267616CA000-memory.dmp
memory/4208-105-0x0000026743660000-0x0000026746E94000-memory.dmp