agenttesla | 33acb1c1e9f4047dbe19b1b41805bf59c137140cc756a4e4d3b0b71213d8dccb

General

Target

LVRmN9zQMQ2LP7G.exe
Size

849KB
MD5

90ddf72c85ae96c28739d959d356a60d
SHA1

70924ccae3d98fc7f2cf3589a9e6f5afb4a5b3cb
SHA256

28c60c06ff3a078f6951ae4bde3069bb8a2c791c52760d8db169c162fc04fec6
SHA512

2e90b3720b21944832df6886ee715bab498c48b939366d810e429d8a105fd9d39a6732e03eab531d5c1fcf4b1f09516ce671bd39c9855872a1123b4b72f4fd63
SSDEEP

24576:FqAJNrVbCx3YNSZCPmGfSxVqLbtT99kph3pzWUM2Gmkj0x8o:DNlCyS0mGeqLbypRpyR2RU0x8o

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:
dU*wU0)yR;?4q|-#
Email To:
[email protected]

Signatures

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

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.

flow	ioc
2	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2756	2808	LVRmN9zQMQ2LP7G.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LVRmN9zQMQ2LP7G.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LVRmN9zQMQ2LP7G.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2756	LVRmN9zQMQ2LP7G.exe
2756	LVRmN9zQMQ2LP7G.exe
2704	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	LVRmN9zQMQ2LP7G.exe
Token: SeDebugPrivilege	2704	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2704	2808	LVRmN9zQMQ2LP7G.exe	30
PID 2808 wrote to memory of 2704	2808	LVRmN9zQMQ2LP7G.exe	30
PID 2808 wrote to memory of 2704	2808	LVRmN9zQMQ2LP7G.exe	30
PID 2808 wrote to memory of 2704	2808	LVRmN9zQMQ2LP7G.exe	30
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32
PID 2808 wrote to memory of 2756	2808	LVRmN9zQMQ2LP7G.exe	32

C:\Users\Admin\AppData\Local\Temp\LVRmN9zQMQ2LP7G.exe
"C:\Users\Admin\AppData\Local\Temp\LVRmN9zQMQ2LP7G.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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\LVRmN9zQMQ2LP7G.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\LVRmN9zQMQ2LP7G.exe
  "C:\Users\Admin\AppData\Local\Temp\LVRmN9zQMQ2LP7G.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2756

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

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Downloads

memory/2756-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-20-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-18-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-23-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2808-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2808-1-0x0000000000080000-0x000000000015A000-memory.dmp

Filesize
872KB

Download
memory/2808-6-0x00000000052A0000-0x000000000533A000-memory.dmp

Filesize
616KB

Download
memory/2808-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-19-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2808-3-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download

Analysis

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