agenttesla | 3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5

General

Target

3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe
Size

3.5MB
MD5

806e51293e3b35ada07cb8c98f925f15
SHA1

d95d7e0fcd11b886c1d06a52cfbb988c7cd80213
SHA256

3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5
SHA512

f2857cfafa13b68ba269091e3f2605b53f79aff8750b9585e59a66dd36cea70a69e168f665591127c6ee3a224046ea1c8fa1d099c4cfc979c82d842ac7fa04b2
SSDEEP

98304:jAo9y3OvpJwg0K2c/iiWOvpJwg0K2c/ii:1TwPcHrwPcH

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
M992uew1mw6Z
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
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 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	api.ipify.org
15	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 760 set thread context of 2172	760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe	86

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	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2172	regasm.exe
2172	regasm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 760 wrote to memory of 2172	760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe	86
PID 760 wrote to memory of 2172	760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe	86
PID 760 wrote to memory of 2172	760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe	86
PID 760 wrote to memory of 2172	760	3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe	86

C:\Users\Admin\AppData\Local\Temp\3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe
"C:\Users\Admin\AppData\Local\Temp\3bf975da6c178a0ca6458e493fce81bea96e059e333ed596c3101dbb408eaad5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:760
- 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
  PID:2172

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/760-2-0x0000000077B52000-0x0000000077B53000-memory.dmp

Filesize
4KB

Download
memory/760-3-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/760-4-0x00000000021F0000-0x00000000021F8000-memory.dmp

Filesize
32KB

Download
memory/2172-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2172-7-0x0000000077B52000-0x0000000077B53000-memory.dmp

Filesize
4KB

Download
memory/2172-8-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/2172-9-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2172-10-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2172-11-0x0000000005550000-0x0000000005AF4000-memory.dmp

Filesize
5.6MB

Download
memory/2172-12-0x0000000005110000-0x0000000005176000-memory.dmp

Filesize
408KB

Download
memory/2172-13-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2172-14-0x0000000006520000-0x0000000006570000-memory.dmp

Filesize
320KB

Download
memory/2172-15-0x0000000006610000-0x00000000066A2000-memory.dmp

Filesize
584KB

Download
memory/2172-16-0x0000000006590000-0x000000000659A000-memory.dmp

Filesize
40KB

Download
memory/2172-17-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2172-18-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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