agenttesla | b84a1f37ee590a2da265257df6951bc976cd2ab4828d2e37d9a3356b28b4f6eb

Analysis

max time kernel
30s
max time network
114s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
14/06/2023, 22:44

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General

Target

fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe
Size

692KB
MD5

0aa7e7ec52198dd4b30ba5fdb315236e
SHA1

62459e2139e86a3deaa0b0d310f2c7538694ef6e
SHA256

b84a1f37ee590a2da265257df6951bc976cd2ab4828d2e37d9a3356b28b4f6eb
SHA512

d584d54e9d42402ef78c7a6cddd7590c1867e31c9938c9e12335888a3d2585d419ac2518c67129d186e1f349aa6f97836f64d6a40d0e1d30f647b5fb646ca54b
SSDEEP

12288:ec1z1kQYUgM288/PJe+uozc7qmuhyjAHkRbgtIIN6ip+UEKLL+w+:r1kQlgM28Seqz8qVqbgtIItPBU

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot6120421924:AAHfDg3lTzDUW4O1CSc9eyT6zf8UpaOZqyY/

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.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
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1448 set thread context of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	Caspol.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1288	Caspol.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27
PID 1448 wrote to memory of 1288	1448	fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe

C:\Users\Admin\AppData\Local\Temp\fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe
"C:\Users\Admin\AppData\Local\Temp\fa45fffc-aa99-4336-b8bd-73112a5725d7pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1288-56-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-57-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-58-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-59-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1288-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-66-0x00000000012B0000-0x00000000012F0000-memory.dmp

Filesize
256KB

Download
memory/1288-84-0x00000000012B0000-0x00000000012F0000-memory.dmp

Filesize
256KB

Download
memory/1448-54-0x0000000000A00000-0x0000000000AAE000-memory.dmp

Filesize
696KB

Download
memory/1448-55-0x0000000000140000-0x000000000014A000-memory.dmp

Filesize
40KB

Download