agenttesla | d6e45de8ca76e1b129c6d45fb36a6880783c7b25702068bc5c1e288159074dca

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 07:44

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General

Target

enquiry.exe
Size

747KB
MD5

46dfa461d0a4845e2ea053c41521b993
SHA1

f133351018473754a29114ef545d20ce595bdda4
SHA256

6d6cb640f6e698a0f25989871716904f7780f4c26cfaf9a824f7fc4feb594f89
SHA512

21f7f4d85e6b8bd811cdfddf6aced9558b087cadbcaa691d0eb95b6259d0f90c854b7bb88bbc04fa5491c1509b1deea17c90984f7e710bcfbbf9dd5bb0b171cc
SSDEEP

12288:k5Ftiw25MuGyAnufZwNvs/4TToRdPCwh0AtkAk9x02whNbx:kxlQVAnuf2NxTipCTAkHwh

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
2536	powershell.exe
2788	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-1-5-21-3533259084-2542256011-65585152-1000\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 2740 set thread context of 1792	2740	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	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
2772	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2740	enquiry.exe
2740	enquiry.exe
2740	enquiry.exe
2536	powershell.exe
2788	powershell.exe
2740	enquiry.exe
1792	RegSvcs.exe
1792	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	enquiry.exe
Token: SeDebugPrivilege	2536	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	1792	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1792	RegSvcs.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2536	2740	enquiry.exe	30
PID 2740 wrote to memory of 2536	2740	enquiry.exe	30
PID 2740 wrote to memory of 2536	2740	enquiry.exe	30
PID 2740 wrote to memory of 2536	2740	enquiry.exe	30
PID 2740 wrote to memory of 2788	2740	enquiry.exe	32
PID 2740 wrote to memory of 2788	2740	enquiry.exe	32
PID 2740 wrote to memory of 2788	2740	enquiry.exe	32
PID 2740 wrote to memory of 2788	2740	enquiry.exe	32
PID 2740 wrote to memory of 2772	2740	enquiry.exe	34
PID 2740 wrote to memory of 2772	2740	enquiry.exe	34
PID 2740 wrote to memory of 2772	2740	enquiry.exe	34
PID 2740 wrote to memory of 2772	2740	enquiry.exe	34
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1844	2740	enquiry.exe	36
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	enquiry.exe	37
PID 2740 wrote to memory of 1792	2740	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:2740
- 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:2536
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rSIDSqBQQu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rSIDSqBQQu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB193.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2772
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1844
- 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:1792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB193.tmp

Filesize
1KB

MD5
7e8545a31144282c3b954cb4ca2bcda4

SHA1
50a94a347d72bcfebc57a4f74f469996675bb5e2

SHA256
a9d55dcceb4ca0028b1476d22c3233e58b4a53e80ee1ecf19282d2f38cfdcdb6

SHA512
90e66e3a32771600e71060ad6303106e7f04fada9d0b3a03eb58766d97c2663d7b5af4f943c4053f3a5fd2ab409b3ac10605ad1678a4a4427adbdb038b1ccfe3

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

Filesize
7KB

MD5
fd1fdf2c51c1f1ffb12fa9f29728cebe

SHA1
87aef9070bfaa0cb315cbab4ed45384d30e2172a

SHA256
309810092f8acda302af706c5156d52bd1d2626008264e4510f78279ffd11ffd

SHA512
388df7a730779a17d7ce4427e1a7d2f9fb5a2c89a630f7a204121f780becbc7967d73218596c49aa7c7100b3af0aa49c49deef5cf8404053e85538c89cb46257

Download Submit
memory/1792-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1792-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1792-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2740-6-0x00000000007F0000-0x0000000000876000-memory.dmp

Filesize
536KB

Download
memory/2740-1-0x0000000000980000-0x0000000000A42000-memory.dmp

Filesize
776KB

Download
memory/2740-0-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2740-2-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-3-0x0000000001E50000-0x0000000001E6E000-memory.dmp

Filesize
120KB

Download
memory/2740-5-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-4-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2740-31-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download