agenttesla | b51d8cef7b5387ffd2bdfd950a32f3707fbc7478e54d3e7dbb17141af56bad06

Analysis

max time kernel
133s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2024, 01:10

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General

Target

PO#AL231108.exe
Size

726KB
MD5

52a968eda28e0eee172211251d81f91a
SHA1

cf03d8ab062a649bbda71f976d830527bc880718
SHA256

b9f7f2043b9a1cdeca868f55c33bd83d993be160ca42bb38ac3281ac00f6ec10
SHA512

2eca3e2b990183653ace761c0679485adad835739f0ea45b391ed753b5590637cb5f1356ad6e2a09ba7bf93c8b2956c41a453d996cd327bc22123e311c458dd4
SSDEEP

12288:4zXiAEfD9rzyatXKRlLvo2n8rAKtJKqvxyRvl4s0CSLMGifSddEL+ZkR:aRE79pQjQ7AeKvl4s0CSLhw+E

Score

10^/10

agenttesla execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.sibasultrasonics.com
Port:
587
Username:
[email protected]
Password:
wxQ@kr-2OL,{

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sibasultrasonics.com
Port:
587
Username:
[email protected]
Password:
wxQ@kr-2OL,{
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4916	powershell.exe
1868	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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	PO#AL231108.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bnFClsT = "C:\\Users\\Admin\\AppData\\Roaming\\bnFClsT\\bnFClsT.exe"	PO#AL231108.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
30	api.ipify.org
31	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4776 set thread context of 3432	4776	PO#AL231108.exe	104

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

pid	Process
3560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4776	PO#AL231108.exe
1868	powershell.exe
1868	powershell.exe
4916	powershell.exe
4916	powershell.exe
4776	PO#AL231108.exe
4776	PO#AL231108.exe
3432	PO#AL231108.exe
3432	PO#AL231108.exe
3432	PO#AL231108.exe
4916	powershell.exe
1868	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	PO#AL231108.exe
Token: SeDebugPrivilege	4916	powershell.exe
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	3432	PO#AL231108.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3432	PO#AL231108.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 4916	4776	PO#AL231108.exe	98
PID 4776 wrote to memory of 4916	4776	PO#AL231108.exe	98
PID 4776 wrote to memory of 4916	4776	PO#AL231108.exe	98
PID 4776 wrote to memory of 1868	4776	PO#AL231108.exe	100
PID 4776 wrote to memory of 1868	4776	PO#AL231108.exe	100
PID 4776 wrote to memory of 1868	4776	PO#AL231108.exe	100
PID 4776 wrote to memory of 3560	4776	PO#AL231108.exe	102
PID 4776 wrote to memory of 3560	4776	PO#AL231108.exe	102
PID 4776 wrote to memory of 3560	4776	PO#AL231108.exe	102
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104
PID 4776 wrote to memory of 3432	4776	PO#AL231108.exe	104

C:\Users\Admin\AppData\Local\Temp\PO#AL231108.exe
"C:\Users\Admin\AppData\Local\Temp\PO#AL231108.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4776
- 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#AL231108.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4916
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nVJcSclKaRDPae.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1868
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nVJcSclKaRDPae" /XML "C:\Users\Admin\AppData\Local\Temp\tmp66B9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3560
- C:\Users\Admin\AppData\Local\Temp\PO#AL231108.exe
  "C:\Users\Admin\AppData\Local\Temp\PO#AL231108.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3432

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
a640af225126701dc80e7c95b0b217e1

SHA1
fe0ee451475690bb8b6d5c6873a3b80114f5623c

SHA256
72d4dea027ac72831b0e2f722854cb6ac994c1ca691c9fd48b76cca947b5ef67

SHA512
e7ac53e79b9fc24daf5736fb54972a215bdcc5a6e50dfc7eb1387f1477d23d0cc1b95b1a2a65b0c52ab0dec02d734258613fc0143cf17632d36e78da1a05ca00

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gwhhhz3l.uef.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp66B9.tmp

Filesize
1KB

MD5
f174d24a0eb580909999d56000503ba3

SHA1
6cc18ec15dc542b3b7002805f6e3f808b3d37d4d

SHA256
7d68447fe23a6ac76cd4aa731795b4ae0ae63871c3f46223a2a34f84e2e0c6f6

SHA512
79dacc43468892d6857be9ff607b0169d495d74ec84938be17f1fb3dd942835d7f412cb481967777c55d79862f4bd3d8781847084df336a628ff2b356e58f05e

Download Submit
memory/1868-62-0x00000000716B0000-0x00000000716FC000-memory.dmp

Filesize
304KB

Download
memory/1868-26-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/1868-73-0x0000000007870000-0x0000000007913000-memory.dmp

Filesize
652KB

Download
memory/1868-72-0x0000000007610000-0x000000000762E000-memory.dmp

Filesize
120KB

Download
memory/1868-75-0x00000000079C0000-0x00000000079DA000-memory.dmp

Filesize
104KB

Download
memory/1868-21-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/1868-19-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/1868-91-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/1868-39-0x0000000006110000-0x0000000006464000-memory.dmp

Filesize
3.3MB

Download
memory/3432-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3432-84-0x00000000068B0000-0x0000000006900000-memory.dmp

Filesize
320KB

Download
memory/4776-5-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4776-9-0x0000000006470000-0x00000000064F4000-memory.dmp

Filesize
528KB

Download
memory/4776-8-0x0000000005020000-0x0000000005036000-memory.dmp

Filesize
88KB

Download
memory/4776-7-0x0000000004ED0000-0x0000000004EDE000-memory.dmp

Filesize
56KB

Download
memory/4776-6-0x0000000004EA0000-0x0000000004EBC000-memory.dmp

Filesize
112KB

Download
memory/4776-10-0x0000000008AD0000-0x0000000008B6C000-memory.dmp

Filesize
624KB

Download
memory/4776-27-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4776-4-0x0000000004D30000-0x0000000004D3A000-memory.dmp

Filesize
40KB

Download
memory/4776-3-0x0000000004B80000-0x0000000004C12000-memory.dmp

Filesize
584KB

Download
memory/4776-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4776-2-0x0000000005030000-0x00000000055D4000-memory.dmp

Filesize
5.6MB

Download
memory/4776-1-0x00000000000E0000-0x0000000000198000-memory.dmp

Filesize
736KB

Download
memory/4916-29-0x0000000006060000-0x00000000060C6000-memory.dmp

Filesize
408KB

Download
memory/4916-50-0x0000000006C60000-0x0000000006CAC000-memory.dmp

Filesize
304KB

Download
memory/4916-52-0x00000000716B0000-0x00000000716FC000-memory.dmp

Filesize
304KB

Download
memory/4916-51-0x0000000006B60000-0x0000000006B92000-memory.dmp

Filesize
200KB

Download
memory/4916-49-0x0000000006690000-0x00000000066AE000-memory.dmp

Filesize
120KB

Download
memory/4916-28-0x0000000005FF0000-0x0000000006056000-memory.dmp

Filesize
408KB

Download
memory/4916-23-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4916-22-0x00000000056E0000-0x0000000005702000-memory.dmp

Filesize
136KB

Download
memory/4916-74-0x0000000007FE0000-0x000000000865A000-memory.dmp

Filesize
6.5MB

Download
memory/4916-76-0x00000000079B0000-0x00000000079BA000-memory.dmp

Filesize
40KB

Download
memory/4916-78-0x0000000007BC0000-0x0000000007C56000-memory.dmp

Filesize
600KB

Download
memory/4916-79-0x0000000007B40000-0x0000000007B51000-memory.dmp

Filesize
68KB

Download
memory/4916-80-0x0000000007B70000-0x0000000007B7E000-memory.dmp

Filesize
56KB

Download
memory/4916-81-0x0000000007B80000-0x0000000007B94000-memory.dmp

Filesize
80KB

Download
memory/4916-82-0x0000000007C80000-0x0000000007C9A000-memory.dmp

Filesize
104KB

Download
memory/4916-83-0x0000000007C60000-0x0000000007C68000-memory.dmp

Filesize
32KB

Download
memory/4916-18-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4916-87-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4916-17-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4916-16-0x0000000005750000-0x0000000005D78000-memory.dmp

Filesize
6.2MB

Download
memory/4916-15-0x00000000050C0000-0x00000000050F6000-memory.dmp

Filesize
216KB

Download