agenttesla | aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3

General

Target

aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe
Size

1.8MB
MD5

73c13ccef8a21994322a9d6088753294
SHA1

7b3d167c9d3af83abe772040fe87507e08a56665
SHA256

aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3
SHA512

c8943fcfe0fa4da8c9b9e8cff0dbe032b806fa520eeceb4f05c56a95afe93b60ea4ae375d53ffb53194ee52c774961cad0209608a5aeb120439361ab534c2ac5
SSDEEP

12288:Ehsv71fj25HTvgxSoog9so0aFj+HIbJCRTGvDsFbsQ4cp:E2p6pkSoeo0a44CRG7Ioi

Score

10^/10

agenttesla discovery evasion execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe

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
2712	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe

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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31

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 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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2712	powershell.exe
1276	AddInProcess32.exe
1276	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	1276	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1276	AddInProcess32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2712	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	29
PID 2248 wrote to memory of 2712	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	29
PID 2248 wrote to memory of 2712	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	29
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 1276	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	31
PID 2248 wrote to memory of 2900	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	32
PID 2248 wrote to memory of 2900	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	32
PID 2248 wrote to memory of 2900	2248	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe	32

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe

C:\Users\Admin\AppData\Local\Temp\aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe
"C:\Users\Admin\AppData\Local\Temp\aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2248
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1276
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2248 -s 804
  2⤵
  PID:2900

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1276-17-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-19-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1276-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1276-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2248-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000001320000-0x0000000001338000-memory.dmp

Filesize
96KB

Download
memory/2248-3-0x000000001B170000-0x000000001B206000-memory.dmp

Filesize
600KB

Download
memory/2248-2-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/2248-23-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/2712-20-0x0000000002650000-0x00000000026D0000-memory.dmp

Filesize
512KB

Download
memory/2712-21-0x000000001B2F0000-0x000000001B5D2000-memory.dmp

Filesize
2.9MB

Download
memory/2712-22-0x0000000002370000-0x0000000002378000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads