agenttesla | 447531e094a1210b3de8f430e72c6fc8abcb8adfee2b029ad7480bb4eb2f77a7

General

Target

tmp.exe
Size

653KB
MD5

cf67271f2b35c9db343f08eba81c2408
SHA1

2862120c6c8fac978543d4dc9ccf8cf337361fe6
SHA256

447531e094a1210b3de8f430e72c6fc8abcb8adfee2b029ad7480bb4eb2f77a7
SHA512

a18926c2dc262ae1125ee1bf5a33e11712e52aad38db8fe0947e0f4b0ad5abc398a3a8422ba1ee0fb739de7c28d62ab4b266832c03ee2706b7715e3b02ca7751

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
5+t@dw5Mc}Dr

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation tmp.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
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	tmp.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 1168 set thread context of 4576 1168 tmp.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3396 timeout.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

tmp.exeRegAsm.exe

pid process

1168 tmp.exe
1168 tmp.exe
4576 RegAsm.exe
4576 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4576 RegAsm.exe

description	pid	process	target process
PID 1168 set thread context of 4576	1168	tmp.exe	RegAsm.exe

pid	process
3396	timeout.exe

pid	process
1168	tmp.exe
1168	tmp.exe
4576	RegAsm.exe
4576	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4576	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

tmp.execmd.exe

description	pid	process	target process
PID 1168 wrote to memory of 2632	1168	tmp.exe	cmd.exe
PID 1168 wrote to memory of 2632	1168	tmp.exe	cmd.exe
PID 1168 wrote to memory of 2632	1168	tmp.exe	cmd.exe
PID 2632 wrote to memory of 3396	2632	cmd.exe	timeout.exe
PID 2632 wrote to memory of 3396	2632	cmd.exe	timeout.exe
PID 2632 wrote to memory of 3396	2632	cmd.exe	timeout.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe
PID 1168 wrote to memory of 4576	1168	tmp.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 10
2⤵
- Suspicious use of WriteProcessMemory
PID:2632

C:\Windows\SysWOW64\timeout.exe
timeout 10
3⤵
- Delays execution with timeout.exe
PID:3396

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4576

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1168-131-0x0000000000A30000-0x0000000000ADA000-memory.dmp

Filesize
680KB

Download
memory/2632-132-0x0000000000000000-mapping.dmp

Download
memory/3396-133-0x0000000000000000-mapping.dmp

Download
memory/4576-134-0x0000000000000000-mapping.dmp

Download
memory/4576-135-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4576-136-0x0000000005D80000-0x0000000006324000-memory.dmp

Filesize
5.6MB

Download
memory/4576-137-0x00000000058D0000-0x000000000596C000-memory.dmp

Filesize
624KB

Download
memory/4576-138-0x00000000065E0000-0x0000000006646000-memory.dmp

Filesize
408KB

Download
memory/4576-139-0x0000000006AC0000-0x0000000006B10000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads