agenttesla | 496183edd167fc6543a66bfc47c6a486eacf7fcafa9149d6d78c590e6d6b3be2

General

Target

enquiry.exe
Size

735KB
MD5

752c73f34aed5a0e613e46569d7f1e63
SHA1

bfd8a1b7d1cdadd45ca7c63cd3de9568dec701b5
SHA256

496183edd167fc6543a66bfc47c6a486eacf7fcafa9149d6d78c590e6d6b3be2
SHA512

0b16fc7ab05014142de060a26aee236f9ba34aae4dec9d5962d6ae544eff361c8561f8d8283ce40bef16c72b778b736dc595eabc461332015f06f4de1c48e7d0
SSDEEP

12288:PadsFtzWYwqiZvwcynamw1Ry3fFKqcw+x8BmEjODCwlHcozjWl6:FzWNqiZ4cytw1otKRwkWxOnX2l

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
2840	powershell.exe
2772	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-1-5-21-3551809350-4263495960-1443967649-1000\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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2856	3044	enquiry.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	enquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
2348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3044	enquiry.exe
2772	powershell.exe
2840	powershell.exe
3044	enquiry.exe
2856	RegSvcs.exe
2856	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	enquiry.exe
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2856	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2856	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2840	3044	enquiry.exe	31
PID 3044 wrote to memory of 2840	3044	enquiry.exe	31
PID 3044 wrote to memory of 2840	3044	enquiry.exe	31
PID 3044 wrote to memory of 2840	3044	enquiry.exe	31
PID 3044 wrote to memory of 2772	3044	enquiry.exe	33
PID 3044 wrote to memory of 2772	3044	enquiry.exe	33
PID 3044 wrote to memory of 2772	3044	enquiry.exe	33
PID 3044 wrote to memory of 2772	3044	enquiry.exe	33
PID 3044 wrote to memory of 2348	3044	enquiry.exe	35
PID 3044 wrote to memory of 2348	3044	enquiry.exe	35
PID 3044 wrote to memory of 2348	3044	enquiry.exe	35
PID 3044 wrote to memory of 2348	3044	enquiry.exe	35
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37
PID 3044 wrote to memory of 2856	3044	enquiry.exe	37

C:\Users\Admin\AppData\Local\Temp\enquiry.exe
"C:\Users\Admin\AppData\Local\Temp\enquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044
- 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\enquiry.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sSvKKDKzbUP.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2772
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sSvKKDKzbUP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEAAD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2348
- 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:2856

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\tmpEAAD.tmp

Filesize
1KB

MD5
44fbe5806e44233268b3dcb9f0d6a0cd

SHA1
908cac985c555cf3d4138ba27fcf5353a79f5940

SHA256
1e8e281ac0f59b8b0b22e2e1d03c243cdfa00beb26ebe45fc8428d03876eda84

SHA512
14fca0d4a260abf3f08b2d6d80bd84bb19e8d90b4ce0d575901fb21faa1c37a739916d668e724301d8aa48e15c040adeaea23cadbb145ce6dfd076b1d9c3be29

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
0a9a5fb64c3ce0925480634c803dc5f7

SHA1
1a7fff69074435e8648955941e88248ea6b697d1

SHA256
1cab670f714828359a7b567aa675a9d236bcc99a692cf6d1df6b66f4ae607d5f

SHA512
fa6ac8ef78e6da68d4249f5eeaba7140aae266137a4b276ad1fa9987c3858807d07df740abaecc5697f76ecff7bdf7e99f9b46092e17c231d4dee6e8ee3f1a81

Download Submit
memory/2856-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3044-6-0x00000000002B0000-0x0000000000336000-memory.dmp

Filesize
536KB

Download
memory/3044-1-0x0000000000920000-0x00000000009DE000-memory.dmp

Filesize
760KB

Download
memory/3044-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/3044-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-3-0x0000000000520000-0x000000000053E000-memory.dmp

Filesize
120KB

Download
memory/3044-5-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-4-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/3044-31-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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