agenttesla | 233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940

General

Target

233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Size

709KB
MD5

c0ffdff6f822d352a7932a19b72c0f40
SHA1

d546c7ab883d25cbb09ffc09f92e9bf35cd2cfe6
SHA256

233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940
SHA512

6e817b32552757974f08bcb32225fdc0816980b4b4e610ce692194b5e6d67b525107780d0918880b0602d763f64ffb7ee925064868e00c30bb8bb157754d1ab6
SSDEEP

12288:6R61OhPIltwmQ6rZVGCN01OqdC8eUkY4TWXiwYo8Q53sBukLGBv5n:1O1Sbb9VB0Mt8eUdNx89O

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
aaf-kas.com
Port:
587
Username:
[email protected]
Password:
vecofgain123
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31

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	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1768	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
1768	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
1768	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31
PID 2708 wrote to memory of 1768	2708	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
"C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
  "C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1768

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

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1768-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-29-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1768-27-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1768-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1768-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-26-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1768-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1768-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2708-5-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-10-0x0000000004FE0000-0x000000000505C000-memory.dmp

Filesize
496KB

Download
memory/2708-9-0x0000000000A30000-0x0000000000A3A000-memory.dmp

Filesize
40KB

Download
memory/2708-8-0x00000000009D0000-0x00000000009D8000-memory.dmp

Filesize
32KB

Download
memory/2708-7-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-6-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/2708-0-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/2708-3-0x00000000009B0000-0x00000000009C2000-memory.dmp

Filesize
72KB

Download
memory/2708-4-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-2-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-28-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-1-0x0000000000BB0000-0x0000000000C64000-memory.dmp

Filesize
720KB

Download

Analysis

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