agenttesla | 48fd1c5c1a5da8b5a649feb0ce4487cab4323945e4fbab802a989fc4dc5d3697

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
2888	powershell.exe
2768	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-1-5-21-1488793075-819845221-1497111674-1000\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 3040 set thread context of 2968	3040	enquiry.exe	36

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	enquiry.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
2992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3040	enquiry.exe
2768	powershell.exe
2888	powershell.exe
3040	enquiry.exe
2968	RegSvcs.exe
2968	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3040	enquiry.exe
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	2888	powershell.exe
Token: SeDebugPrivilege	2968	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2968	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2888	3040	enquiry.exe	30
PID 3040 wrote to memory of 2888	3040	enquiry.exe	30
PID 3040 wrote to memory of 2888	3040	enquiry.exe	30
PID 3040 wrote to memory of 2888	3040	enquiry.exe	30
PID 3040 wrote to memory of 2768	3040	enquiry.exe	32
PID 3040 wrote to memory of 2768	3040	enquiry.exe	32
PID 3040 wrote to memory of 2768	3040	enquiry.exe	32
PID 3040 wrote to memory of 2768	3040	enquiry.exe	32
PID 3040 wrote to memory of 2992	3040	enquiry.exe	34
PID 3040 wrote to memory of 2992	3040	enquiry.exe	34
PID 3040 wrote to memory of 2992	3040	enquiry.exe	34
PID 3040 wrote to memory of 2992	3040	enquiry.exe	34
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36
PID 3040 wrote to memory of 2968	3040	enquiry.exe	36

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:3040
- 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:2888
- 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:2768
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sSvKKDKzbUP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3469.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2992
- 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:2968

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\tmp3469.tmp

Filesize
1KB

MD5
7de94d9d54a5219dceb24d00ab3c2aca

SHA1
1caf5f329edc20bd38c674b98b95495f89762722

SHA256
c8a00ae015964a51ec5ba470d9f493ff200b6002e6e6835da0954529dc1fe61e

SHA512
5914ba6738dc91002e7ceade63c874123f3edc108c3b24a3e81356aae5cbf67f923a8af8778f6e9fee928d713283104cc6dfb6d1a73966dc5307abb1e34f8600

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

Filesize
7KB

MD5
0efa92330c0d7ccbf66b2aa2b5ca5dce

SHA1
980120196d1a825dc20e79b267e2ce35ab4833ee

SHA256
3307a290965797892cac8e52fe35d41abdfcdbfae2bec63a45cd62be1c50cf8c

SHA512
e36d17d6814d252667f047f573cb7a081fa443eac0cbcf2317f124ea9f22aaf73a7cf3a43d1b78e4eec52ff89d55a5b7f987f59d7d6d4b7b9e35d4b378224307

Download Submit
memory/2968-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2968-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3040-6-0x0000000000530000-0x00000000005B6000-memory.dmp

Filesize
536KB

Download
memory/3040-1-0x0000000001270000-0x000000000132E000-memory.dmp

Filesize
760KB

Download
memory/3040-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/3040-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-3-0x0000000000920000-0x000000000093E000-memory.dmp

Filesize
120KB

Download
memory/3040-5-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-4-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/3040-32-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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