agenttesla | d860174c22effeac91c10774b5601c08c74429905c7f9d4043754448a7cd3a01

Analysis

max time kernel
33s
max time network
36s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03-04-2023 08:55

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General

Target

Dekont,pdf.exe
Size

220KB
MD5

3f1c97d2f5200204e711e812b63b2b99
SHA1

b7edbc37fd17d4b1d890ffa5565b548f4aebb40e
SHA256

45a156f54da1d261e560ed2ebfd861aca470562ccca7878f44421de8089c224e
SHA512

05893ea315eab2e08dfbc8d8cdf1edcfe9086ac48e02c9ebc02e3319eb7901e0097ecaf2156275773f47dce332a7d4274bbb596ae1763cde78bd1e55e7a25131
SSDEEP

6144:fYYUtx+U3w8fg7Mv2D7mtGB8BHVQ+zJcM/PA6gLnqI:fFUt4eq+2Xmto8BjF9AuI

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

Processes:

Caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Dekont,pdf.exe

description pid process target process

PID 1992 set thread context of 1192 1992 Dekont,pdf.exe Caspol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Caspol.exe

description pid process

Token: SeDebugPrivilege 1192 Caspol.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Caspol.exe

pid process

1192 Caspol.exe

flow	ioc
3	api.ipify.org

description	pid	process	target process
PID 1992 set thread context of 1192	1992	Dekont,pdf.exe	Caspol.exe

description	pid	process
Token: SeDebugPrivilege	1192	Caspol.exe

pid	process
1192	Caspol.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Dekont,pdf.exe

description	pid	process	target process
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe
PID 1992 wrote to memory of 1192	1992	Dekont,pdf.exe	Caspol.exe

outlook_office_path 1 IoCs

Processes:

Caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe

outlook_win_path 1 IoCs

Processes:

Caspol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Caspol.exe

C:\Users\Admin\AppData\Local\Temp\Dekont,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Dekont,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1992

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:1192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1192-56-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-57-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-58-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-59-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1192-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1192-66-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

Filesize
256KB

Download
memory/1192-73-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

Filesize
256KB

Download
memory/1992-54-0x0000000000350000-0x0000000000386000-memory.dmp

Filesize
216KB

Download
memory/1992-55-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download