agenttesla | fa53c2e80cb99ea3f6c73b9783abaa69b7348d89d434b20647cdbb0be2ba045a

Analysis

max time kernel
120s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 01:16

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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
1812	powershell.exe
5040	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	PO#98540-00.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-1-5-21-493223053-2004649691-1575712786-1000\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
23	api.ipify.org
24	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 4408	2676	PO#98540-00.exe	102

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	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
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
968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2676	PO#98540-00.exe
1812	powershell.exe
5040	powershell.exe
2676	PO#98540-00.exe
1812	powershell.exe
4408	RegSvcs.exe
4408	RegSvcs.exe
5040	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	PO#98540-00.exe
Token: SeDebugPrivilege	1812	powershell.exe
Token: SeDebugPrivilege	5040	powershell.exe
Token: SeDebugPrivilege	4408	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4408	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 1812	2676	PO#98540-00.exe	96
PID 2676 wrote to memory of 1812	2676	PO#98540-00.exe	96
PID 2676 wrote to memory of 1812	2676	PO#98540-00.exe	96
PID 2676 wrote to memory of 5040	2676	PO#98540-00.exe	98
PID 2676 wrote to memory of 5040	2676	PO#98540-00.exe	98
PID 2676 wrote to memory of 5040	2676	PO#98540-00.exe	98
PID 2676 wrote to memory of 968	2676	PO#98540-00.exe	100
PID 2676 wrote to memory of 968	2676	PO#98540-00.exe	100
PID 2676 wrote to memory of 968	2676	PO#98540-00.exe	100
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102
PID 2676 wrote to memory of 4408	2676	PO#98540-00.exe	102

C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe
"C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2676
- 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:1812
- 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:5040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UYYhCaxjnALlVV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAF5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:968
- 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:4408

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
397b885eb7825a643d77d50034c42053

SHA1
dd98a954d4f6e1211ecac79e2c2735fd9455561a

SHA256
87dee92f5960cb6afcfbaa772a162058f8dbfc5e36b759032404bcf7015ded85

SHA512
d50e23303ca7aee861b5ec67f5a2711bd8bf31a08a331b76af98c8cc269490f83faf9e84d6379ced4fd05db19424a97c339ff4c511473a0f65701a91bbdba836

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_txvseaij.av4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAAF5.tmp

Filesize
1KB

MD5
78264a0a2c61b05f505ad50f5250aa47

SHA1
8ee0ab459a0d78cbd0ab86dac5b8e301a85d8191

SHA256
c1bc22a196ee5ede1c7ec3bcb229104faf6bf133d1cc165a6ab254f52c63ce3f

SHA512
22e01b4839cf039300a05b0875d0bdae2dfde4e1a577878a4347ab2ab341e63140ff8d046402d58b7b2b7d1f371497279b96a4007343c8af4efc05c2dfc7f878

Download Submit
memory/1812-74-0x0000000007530000-0x0000000007BAA000-memory.dmp

Filesize
6.5MB

Download
memory/1812-81-0x0000000007220000-0x000000000723A000-memory.dmp

Filesize
104KB

Download
memory/1812-75-0x0000000006EE0000-0x0000000006EFA000-memory.dmp

Filesize
104KB

Download
memory/1812-73-0x0000000006DB0000-0x0000000006E53000-memory.dmp

Filesize
652KB

Download
memory/1812-63-0x0000000006190000-0x00000000061AE000-memory.dmp

Filesize
120KB

Download
memory/1812-80-0x0000000007120000-0x0000000007134000-memory.dmp

Filesize
80KB

Download
memory/1812-52-0x0000000074F10000-0x0000000074F5C000-memory.dmp

Filesize
304KB

Download
memory/1812-15-0x00000000022A0000-0x00000000022D6000-memory.dmp

Filesize
216KB

Download
memory/1812-16-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1812-17-0x0000000004CC0000-0x00000000052E8000-memory.dmp

Filesize
6.2MB

Download
memory/1812-51-0x0000000006B70000-0x0000000006BA2000-memory.dmp

Filesize
200KB

Download
memory/1812-50-0x00000000060F0000-0x000000000613C000-memory.dmp

Filesize
304KB

Download
memory/1812-79-0x0000000007110000-0x000000000711E000-memory.dmp

Filesize
56KB

Download
memory/1812-18-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1812-82-0x0000000007200000-0x0000000007208000-memory.dmp

Filesize
32KB

Download
memory/1812-39-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1812-89-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2676-48-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2676-2-0x00000000057E0000-0x0000000005D84000-memory.dmp

Filesize
5.6MB

Download
memory/2676-3-0x0000000005310000-0x00000000053A2000-memory.dmp

Filesize
584KB

Download
memory/2676-1-0x0000000000890000-0x000000000094E000-memory.dmp

Filesize
760KB

Download
memory/2676-7-0x0000000005760000-0x000000000577E000-memory.dmp

Filesize
120KB

Download
memory/2676-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/2676-4-0x00000000053D0000-0x00000000053DA000-memory.dmp

Filesize
40KB

Download
memory/2676-5-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2676-9-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2676-10-0x0000000002C80000-0x0000000002D06000-memory.dmp

Filesize
536KB

Download
memory/2676-6-0x0000000005620000-0x00000000056BC000-memory.dmp

Filesize
624KB

Download
memory/2676-8-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/4408-46-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4408-91-0x0000000006BD0000-0x0000000006C20000-memory.dmp

Filesize
320KB

Download
memory/5040-19-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/5040-76-0x00000000074B0000-0x00000000074BA000-memory.dmp

Filesize
40KB

Download
memory/5040-77-0x00000000076C0000-0x0000000007756000-memory.dmp

Filesize
600KB

Download
memory/5040-78-0x0000000007640000-0x0000000007651000-memory.dmp

Filesize
68KB

Download
memory/5040-62-0x0000000074F10000-0x0000000074F5C000-memory.dmp

Filesize
304KB

Download
memory/5040-49-0x0000000006110000-0x000000000612E000-memory.dmp

Filesize
120KB

Download
memory/5040-22-0x00000000054A0000-0x0000000005506000-memory.dmp

Filesize
408KB

Download
memory/5040-40-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/5040-90-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/5040-20-0x0000000005350000-0x0000000005372000-memory.dmp

Filesize
136KB

Download
memory/5040-21-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/5040-28-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/5040-38-0x0000000005C70000-0x0000000005FC4000-memory.dmp

Filesize
3.3MB

Download