agenttesla | 5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c

General

Target

5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe
Size

690KB
MD5

4ec60c5cb63dd767406cbe5016824011
SHA1

7430420069a5880c3f32df17bbd7dbb9cc7af5c4
SHA256

5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c
SHA512

be9f90d83deab7a624278b7fceddeaa2781db4546a27d43fc33e28365c0f89c5bec95e5de50aa6d6f96cb63512d1b7c2f9beeb53fba0380b09ee435c15d0da5e
SSDEEP

12288:/gs7N2Th2eUJnF8WJs4osOlYY2SAMASzqDUUKF95MA4p+S:RAsnF8WJlgltVWUUnAs+S

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5349655878:AAGnMhpzchQYN5RbZ88-w3gvA1SNsxWo7ts/

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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

CasPol.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\updater = "C:\\Users\\Admin\\AppData\\Roaming\\updater\\updater.exe"	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.

Processes:

flow ioc

26 api.ipify.org
27 api.ipify.org

flow	ioc
26	api.ipify.org
27	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe

description	pid	process	target process
PID 1100 set thread context of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4900 1100 WerFault.exe 5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

CasPol.exe

pid process

920 CasPol.exe
920 CasPol.exe
920 CasPol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CasPol.exe

description pid process

Token: SeDebugPrivilege 920 CasPol.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

CasPol.exe

pid process

920 CasPol.exe

pid	pid_target	process	target process
4900	1100	WerFault.exe	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe

pid	process
920	CasPol.exe
920	CasPol.exe
920	CasPol.exe

description	pid	process
Token: SeDebugPrivilege	920	CasPol.exe

pid	process
920	CasPol.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe

description	pid	process	target process
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe
PID 1100 wrote to memory of 920	1100	5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe	CasPol.exe

outlook_office_path 1 IoCs

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe
"C:\Users\Admin\AppData\Local\Temp\5449a91de72a74f3ca7c6fe2821e29ac19b1060151700b69bd6ad4bb00aa9f9c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1100

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
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:920

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1100 -s 1096
2⤵
- Program crash
PID:4900

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 424 -p 1100 -ip 1100
1⤵
PID:2160

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/920-135-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/920-136-0x0000000000437C6E-mapping.dmp

Download
memory/920-138-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/920-139-0x00000000052E0000-0x000000000537C000-memory.dmp

Filesize
624KB

Download
memory/920-140-0x0000000005FF0000-0x0000000006056000-memory.dmp

Filesize
408KB

Download
memory/920-141-0x00000000068C0000-0x0000000006910000-memory.dmp

Filesize
320KB

Download
memory/920-142-0x0000000006A80000-0x0000000006B12000-memory.dmp

Filesize
584KB

Download
memory/920-143-0x0000000006D60000-0x0000000006D6A000-memory.dmp

Filesize
40KB

Download
memory/1100-132-0x00000157E19F0000-0x00000157E1AA2000-memory.dmp

Filesize
712KB

Download
memory/1100-133-0x00007FF817550000-0x00007FF818011000-memory.dmp

Filesize
10.8MB

Download
memory/1100-134-0x00007FF817550000-0x00007FF818011000-memory.dmp

Filesize
10.8MB

Download
memory/1100-137-0x00007FF817550000-0x00007FF818011000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads