agenttesla | c501ebcf488c9172ef490e70c37adb5926783f3aac132e8ff58f90b6b3232e03

Analysis

max time kernel
140s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 11:44

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General

Target

SMBKT-20242005.exe
Size

733KB
MD5

52cd4c12a51d55526ceaa5f1e7f9e549
SHA1

6ca86a42d595177b554b82b5ea3a8dd40d1c3280
SHA256

c501ebcf488c9172ef490e70c37adb5926783f3aac132e8ff58f90b6b3232e03
SHA512

285b4be0a187e86316b0335e5b587dffb23b77952afef1f48a879b567e602a6abbada2c7cd65a02f4afb2f532e2912b446849255b9d2e70448ab6e0cc5ceffe4
SSDEEP

12288:q3nKIhswVenAJnEorRImS5INcHSXh6+QrDpLh/xWBdEhApcVXf2kR:4nKLmeYBWGcHMgFhZWBnsV

Score

10^/10

agenttesla execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.stilbo.eu
Port:
587
Username:
[email protected]
Password:
StilBO_#1
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2656 powershell.exe

pid	process
2656	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

Processes:

SMBKT-20242005.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	SMBKT-20242005.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.

Processes:

flow ioc

25 api.ipify.org
26 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

SMBKT-20242005.exe

description pid process target process

PID 3204 set thread context of 3632 3204 SMBKT-20242005.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

3660 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

SMBKT-20242005.exeRegSvcs.exepowershell.exe

pid process

3204 SMBKT-20242005.exe
3204 SMBKT-20242005.exe
3632 RegSvcs.exe
3632 RegSvcs.exe
2656 powershell.exe
2656 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

SMBKT-20242005.exepowershell.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3204 SMBKT-20242005.exe
Token: SeDebugPrivilege 2656 powershell.exe
Token: SeDebugPrivilege 3632 RegSvcs.exe

flow	ioc
25	api.ipify.org
26	api.ipify.org

description	pid	process	target process
PID 3204 set thread context of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe

pid	process
3660	schtasks.exe

pid	process
3204	SMBKT-20242005.exe
3204	SMBKT-20242005.exe
3632	RegSvcs.exe
3632	RegSvcs.exe
2656	powershell.exe
2656	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3204	SMBKT-20242005.exe
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	3632	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

SMBKT-20242005.exe

description	pid	process	target process
PID 3204 wrote to memory of 2656	3204	SMBKT-20242005.exe	powershell.exe
PID 3204 wrote to memory of 2656	3204	SMBKT-20242005.exe	powershell.exe
PID 3204 wrote to memory of 2656	3204	SMBKT-20242005.exe	powershell.exe
PID 3204 wrote to memory of 3660	3204	SMBKT-20242005.exe	schtasks.exe
PID 3204 wrote to memory of 3660	3204	SMBKT-20242005.exe	schtasks.exe
PID 3204 wrote to memory of 3660	3204	SMBKT-20242005.exe	schtasks.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe
PID 3204 wrote to memory of 3632	3204	SMBKT-20242005.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\SMBKT-20242005.exe
"C:\Users\Admin\AppData\Local\Temp\SMBKT-20242005.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\joUXSCpr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2656
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\joUXSCpr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D00.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3660
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u0nvp2he.mvl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7D00.tmp

Filesize
1KB

MD5
aee27a9e4e23db506399e0563aca1e50

SHA1
2f633e0b1d40da3ce275a0e34dbe56eecf3621d8

SHA256
1690951f26f1aab228832c11772bbf6f4e874e5dc957a57121d10f5a226994be

SHA512
779782de9273e80137c1590fc73b8f84e6383d52f951eed0aa90cda5d0627d056060b7c1931b5534b0ee45692c9cb3a8c9d663eeb4cdf39f6bf29d3901d61fca

Download Submit
memory/2656-16-0x0000000002400000-0x0000000002436000-memory.dmp

Filesize
216KB

Download
memory/2656-67-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2656-61-0x0000000007280000-0x0000000007294000-memory.dmp

Filesize
80KB

Download
memory/2656-60-0x0000000007270000-0x000000000727E000-memory.dmp

Filesize
56KB

Download
memory/2656-59-0x0000000007240000-0x0000000007251000-memory.dmp

Filesize
68KB

Download
memory/2656-58-0x00000000072C0000-0x0000000007356000-memory.dmp

Filesize
600KB

Download
memory/2656-57-0x00000000070B0000-0x00000000070BA000-memory.dmp

Filesize
40KB

Download
memory/2656-56-0x0000000007040000-0x000000000705A000-memory.dmp

Filesize
104KB

Download
memory/2656-55-0x0000000007680000-0x0000000007CFA000-memory.dmp

Filesize
6.5MB

Download
memory/2656-54-0x0000000006F10000-0x0000000006FB3000-memory.dmp

Filesize
652KB

Download
memory/2656-27-0x00000000055C0000-0x00000000055E2000-memory.dmp

Filesize
136KB

Download
memory/2656-62-0x0000000007380000-0x000000000739A000-memory.dmp

Filesize
104KB

Download
memory/2656-20-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2656-17-0x0000000004DE0000-0x0000000005408000-memory.dmp

Filesize
6.2MB

Download
memory/2656-63-0x0000000007360000-0x0000000007368000-memory.dmp

Filesize
32KB

Download
memory/2656-53-0x00000000062D0000-0x00000000062EE000-memory.dmp

Filesize
120KB

Download
memory/2656-23-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2656-43-0x0000000070770000-0x00000000707BC000-memory.dmp

Filesize
304KB

Download
memory/2656-42-0x0000000006ED0000-0x0000000006F02000-memory.dmp

Filesize
200KB

Download
memory/2656-41-0x0000000005D60000-0x0000000005DAC000-memory.dmp

Filesize
304KB

Download
memory/2656-40-0x0000000005D10000-0x0000000005D2E000-memory.dmp

Filesize
120KB

Download
memory/2656-18-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2656-34-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/2656-39-0x0000000005840000-0x0000000005B94000-memory.dmp

Filesize
3.3MB

Download
memory/3204-11-0x000000000AD70000-0x000000000AE0C000-memory.dmp

Filesize
624KB

Download
memory/3204-4-0x0000000002810000-0x000000000281A000-memory.dmp

Filesize
40KB

Download
memory/3204-1-0x00000000001B0000-0x000000000026A000-memory.dmp

Filesize
744KB

Download
memory/3204-25-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3204-2-0x0000000005580000-0x0000000005B24000-memory.dmp

Filesize
5.6MB

Download
memory/3204-3-0x0000000004C90000-0x0000000004D22000-memory.dmp

Filesize
584KB

Download
memory/3204-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/3204-10-0x00000000061E0000-0x0000000006262000-memory.dmp

Filesize
520KB

Download
memory/3204-9-0x00000000026B0000-0x00000000026C0000-memory.dmp

Filesize
64KB

Download
memory/3204-8-0x0000000005520000-0x000000000552C000-memory.dmp

Filesize
48KB

Download
memory/3204-7-0x0000000004F00000-0x0000000004F22000-memory.dmp

Filesize
136KB

Download
memory/3204-6-0x0000000007600000-0x00000000076BA000-memory.dmp

Filesize
744KB

Download
memory/3204-5-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3632-28-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3632-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3632-24-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3632-64-0x0000000005FC0000-0x0000000006010000-memory.dmp

Filesize
320KB

Download
memory/3632-26-0x0000000004A80000-0x0000000004AE6000-memory.dmp

Filesize
408KB

Download
memory/3632-68-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download