agenttesla | da3723cecfee4e8bf281a60ef8025ce18c9a7446ee4894934d4a1fd575620f30

General

Target

ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe
Size

3.3MB
MD5

37bbc0a6a399418331028aab64f4934b
SHA1

ab202974d765cd711cdb1174e06703e3e7f8f6fb
SHA256

ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee
SHA512

b9f170fe33ec79f6a4c9f0b01a0536a67cf4037957ae26a0523e461091f1cb7341b8f89ba8da46e189c1084503b854f8804dc230e844b6b5c50e4b132c740882
SSDEEP

24576:HQ2UiVzd4oKzRpnOQGOvP6Lryocw1N/qMJ:H+iVJ4oKnCr/d

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
phoenixblowers.com
Port:
587
Username:
[email protected]
Password:
Officeback@2022#
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 2 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

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
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2776	regasm.exe
2776	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	regasm.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2764	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	30
PID 2196 wrote to memory of 2764	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	30
PID 2196 wrote to memory of 2764	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	30
PID 2196 wrote to memory of 2764	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	30
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2776	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	31
PID 2196 wrote to memory of 2884	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	32
PID 2196 wrote to memory of 2884	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	32
PID 2196 wrote to memory of 2884	2196	ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe	32

C:\Users\Admin\AppData\Local\Temp\ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe
"C:\Users\Admin\AppData\Local\Temp\ed70bf326cea089f65ec4d96d7874d8cb65f5ae5bb12bb66ff0e9f6b4bde78ee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  PID:2764
- 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:2776
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2196 -s 640
  2⤵
  PID:2884

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/2196-0-0x000007FEF4C83000-0x000007FEF4C84000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000001150000-0x0000000001158000-memory.dmp

Filesize
32KB

Download
memory/2196-2-0x000007FEF4C80000-0x000007FEF566C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-3-0x0000000000BE0000-0x0000000000C74000-memory.dmp

Filesize
592KB

Download
memory/2196-15-0x000007FEF4C80000-0x000007FEF566C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-14-0x000007FEF4C83000-0x000007FEF4C84000-memory.dmp

Filesize
4KB

Download
memory/2776-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-6-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-13-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2776-4-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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