agenttesla | fa53c2e80cb99ea3f6c73b9783abaa69b7348d89d434b20647cdbb0be2ba045a

General

Target

PO#98540-00.exe
Size

741KB
MD5

41bf67688c5d58f536ebb1e27d51b50e
SHA1

cc661142c6397d38e969b34fadd4f71d094d86b0
SHA256

e57c8f7816b977274bc947ad634d5571ea1214e3a8950c5480250b46d5649e79
SHA512

7fb60b14826f7c4f5a330441a06e9e1a4726f0e142f3bdb7fe0abccc59a76047d004ef7d1b21a90bc72540db546aa853433ce4838068352c597ebb2a7ebbd746
SSDEEP

12288:a2LbWa+kkFv6re6vkrIRlFgyVSTh15UilAkUAGSkaAlduLJ:gk+v6rec2KEyVW1ZUAIpCJ

Score

10^/10

agenttesla discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2588	powershell.exe
2716	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	RegSvcs.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
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 1384	764	PO#98540-00.exe	37

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 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO#98540-00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1600	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
764	PO#98540-00.exe
764	PO#98540-00.exe
1384	RegSvcs.exe
1384	RegSvcs.exe
2716	powershell.exe
2588	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	764	PO#98540-00.exe
Token: SeDebugPrivilege	1384	RegSvcs.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	2588	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1384	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 2588	764	PO#98540-00.exe	31
PID 764 wrote to memory of 2588	764	PO#98540-00.exe	31
PID 764 wrote to memory of 2588	764	PO#98540-00.exe	31
PID 764 wrote to memory of 2588	764	PO#98540-00.exe	31
PID 764 wrote to memory of 2716	764	PO#98540-00.exe	33
PID 764 wrote to memory of 2716	764	PO#98540-00.exe	33
PID 764 wrote to memory of 2716	764	PO#98540-00.exe	33
PID 764 wrote to memory of 2716	764	PO#98540-00.exe	33
PID 764 wrote to memory of 1600	764	PO#98540-00.exe	35
PID 764 wrote to memory of 1600	764	PO#98540-00.exe	35
PID 764 wrote to memory of 1600	764	PO#98540-00.exe	35
PID 764 wrote to memory of 1600	764	PO#98540-00.exe	35
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37
PID 764 wrote to memory of 1384	764	PO#98540-00.exe	37

C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe
"C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:764
- 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\PO#98540-00.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UYYhCaxjnALlVV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UYYhCaxjnALlVV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24EE.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1600
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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

C:\Users\Admin\AppData\Local\Temp\tmp24EE.tmp

Filesize
1KB

MD5
3fe58c917618d2e04d0dc41626184a97

SHA1
851dc6efceb000afa1c9514b6631deecf689bec6

SHA256
46e05a8497aa19ca247a92bf7b3d283f657474fe8843ada7184c26413ff5f5ed

SHA512
6884833278e2cea6a4ab34ba9875d0adf8a0d7ea61fcf237d64d41145eac7560892ee900e9ef93f312387e23b6812fc7ab3416748749d6cd74bdef5a788efeb2

Download Submit
memory/764-29-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/764-1-0x0000000000060000-0x000000000011E000-memory.dmp

Filesize
760KB

Download
memory/764-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/764-3-0x0000000000610000-0x000000000062E000-memory.dmp

Filesize
120KB

Download
memory/764-4-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/764-5-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/764-6-0x0000000001E90000-0x0000000001F16000-memory.dmp

Filesize
536KB

Download
memory/764-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/1384-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-26-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1384-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1384-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads