agenttesla | d301798719debd13825774fef34268bdb5635a518358e786cddd8aa9ca51e24d

General

Target

Teklif.exe
Size

748KB
MD5

db4b551903a1f1bcafb5a352765d6d5d
SHA1

9420762fe9c678d890db7ca615a916a581a0b045
SHA256

744ad803081f6ad2d85f3c667c537c6bc3a47bf95c07f496315171790a1b05a2
SHA512

a68972f3cda539e56f4868cba879b849f1bec731fe465a6eb0cf26e63a911717ea2a839da0cb164603da4bd64bf03aab9006812082250bf4c8061e1bd2adb7d8
SSDEEP

12288:HVU3wtfRzxWW94FJEGDrDZL/YoheVXfanjRRVx8HFIUjgyo1ADKwwNHeLdyWYlt:HVUMpzxW84rEGDrtLwoEVMRVx8H7jgvn

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
CCu5Z?WuH+bS4hsz
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
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2704 powershell.exe
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.

Processes:

flow ioc

4 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

Teklif.exe

description pid process target process

PID 2648 set thread context of 2216 2648 Teklif.exe Teklif.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2704	powershell.exe

flow	ioc
4	ip-api.com

description	pid	process	target process
PID 2648 set thread context of 2216	2648	Teklif.exe	Teklif.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

Teklif.exeTeklif.exepowershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Teklif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Teklif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Teklif.exepowershell.exe

pid process

2216 Teklif.exe
2216 Teklif.exe
2704 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Teklif.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2216 Teklif.exe
Token: SeDebugPrivilege 2704 powershell.exe

pid	process
2216	Teklif.exe
2216	Teklif.exe
2704	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2216	Teklif.exe
Token: SeDebugPrivilege	2704	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Teklif.exe

description	pid	process	target process
PID 2648 wrote to memory of 2704	2648	Teklif.exe	powershell.exe
PID 2648 wrote to memory of 2704	2648	Teklif.exe	powershell.exe
PID 2648 wrote to memory of 2704	2648	Teklif.exe	powershell.exe
PID 2648 wrote to memory of 2704	2648	Teklif.exe	powershell.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe
PID 2648 wrote to memory of 2216	2648	Teklif.exe	Teklif.exe

C:\Users\Admin\AppData\Local\Temp\Teklif.exe
"C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\Teklif.exe
  "C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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 Information Discovery

1

T1082

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

Loading Replay Monitor...

Downloads

memory/2216-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2216-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-21-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2216-22-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2216-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2216-26-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2216-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2648-1-0x0000000000910000-0x00000000009D2000-memory.dmp

Filesize
776KB

Download
memory/2648-6-0x00000000051B0000-0x0000000005236000-memory.dmp

Filesize
536KB

Download
memory/2648-23-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-5-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-4-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2648-3-0x00000000003D0000-0x00000000003E2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing