agenttesla | bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6

General

Target

bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe
Size

105KB
MD5

5086980f3ee0c035ec304102e6981410
SHA1

fca1625b36a002d77f69586f96744dfbcde1d472
SHA256

bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6
SHA512

baca4e5d7b1c7f4a7ddcf1ff2ba9876677a9ec43f5a4f6f985f55225b6d59ddb50bb7da1609a91b2ba389796e42407164111d9268dbc6a930f8b180da6d8e2c2
SSDEEP

1536:YPDs/XKdUDp1lRzloawwPI7zwHPG72uu630VDxl7Hxij7wPTxq:YP4b1lFLwM9PG720EVDxlQjcPU

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.zqamcx.com
Port:
587
Username:
[email protected]
Password:
Anambraeast@
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2656	RegAsm.exe
2656	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe
Token: SeDebugPrivilege	2656	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2656	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30
PID 2888 wrote to memory of 2656	2888	bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe	30

C:\Users\Admin\AppData\Local\Temp\bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe
"C:\Users\Admin\AppData\Local\Temp\bfcef30ac8c0270957b3126d0b9046ddd4bc67fdffea077dd0a127809aa233a6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2656-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-3-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2888-1-0x0000000000130000-0x000000000014E000-memory.dmp

Filesize
120KB

Download
memory/2888-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2888-16-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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