agenttesla | a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6

General

Target

a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe
Size

2.3MB
MD5

8caf9be293b93e32caa19fb2a5411449
SHA1

be108917693dddb2a3349ba6e33ed8743c142613
SHA256

a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6
SHA512

5ae1093a58a43453ac9dd67590e3426d0fee9b95ef3f7222c10a081950f7ff50ef0d3371e27cb2e40971aad5ed3948564c94c2eeaa23a197c70d6829610b3f06
SSDEEP

49152:qR2378ZbAA8NRJFcpl87qBqmycWwKKTB:2237vcBq+

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5251230504:AAFuRdeUBF7s3SNrg2U7B1tNq29sTOKGNRA/sendDocument

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Drops file in Drivers directory 1 IoCs

Processes:

RegAsm.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegAsm.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegAsm.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe

description	pid	process	target process
PID 4788 set thread context of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

8 RegAsm.exe
8 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 8 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

8 RegAsm.exe

pid	process
8	RegAsm.exe
8	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	8	RegAsm.exe

pid	process
8	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe

description	pid	process	target process
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe
PID 4788 wrote to memory of 8	4788	a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe
"C:\Users\Admin\AppData\Local\Temp\a215ea74b02d1a52fa8e690022ef687b01eb2ac09841ebf5d91e09714c9014c6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:8

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/8-133-0x0000000000000000-mapping.dmp

Download
memory/8-134-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/8-135-0x0000000005460000-0x0000000005A04000-memory.dmp

Filesize
5.6MB

Download
memory/8-136-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

Filesize
624KB

Download
memory/8-137-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/8-138-0x0000000006210000-0x0000000006260000-memory.dmp

Filesize
320KB

Download
memory/8-139-0x0000000006600000-0x0000000006692000-memory.dmp

Filesize
584KB

Download
memory/8-140-0x0000000006200000-0x000000000620A000-memory.dmp

Filesize
40KB

Download
memory/4788-132-0x0000000000350000-0x00000000005AE000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads