Analysis
- max time kernel
147s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
09/12/2024, 09:26
General
- Target ZAMÓWIENIE_NR24120117938022.exe
- Size 999KB
- Sample241209-leddaatjgt
- SHA256 b7e96f5e7dc899dc84e8eb7d63c867f38e8b742c2e44680dba593969ff148052
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.rusticpensiune.ro
-
Port
21
-
Username
-
Password
hr,d@KUwa5llI%*RNL^J]g%8I;!;_Ne#G1h~lE!*86DAAD6#iLm$x)r+e1z$p+_Q,4_(f!};B?vD!IG?NqT[zOHNr6_nww[S]V?MlcYSt_QO
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_NR24120117938022.exe"C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_NR24120117938022.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_NR24120117938022.exe"C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_NR24120117938022.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1636-22-0x0000000037520000-0x0000000037AC4000-memory.dmp
memory/1636-21-0x0000000000490000-0x00000000004D2000-memory.dmp
memory/1636-27-0x0000000037F20000-0x0000000037F2A000-memory.dmp
memory/1636-26-0x0000000037E30000-0x0000000037EC2000-memory.dmp
memory/1636-15-0x00000000016F0000-0x0000000004622000-memory.dmp
memory/1636-19-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1636-20-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1636-25-0x0000000037DE0000-0x0000000037E30000-memory.dmp
memory/1636-24-0x00000000016F0000-0x0000000004622000-memory.dmp
memory/1636-23-0x00000000372B0000-0x0000000037316000-memory.dmp
memory/2060-11-0x00000000032B0000-0x00000000061E2000-memory.dmp
memory/2060-12-0x0000000077771000-0x0000000077891000-memory.dmp
memory/2060-14-0x00000000032B0000-0x00000000061E2000-memory.dmp
memory/2060-13-0x0000000074465000-0x0000000074466000-memory.dmp