agenttesla | b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802 | Triage

Analysis

max time kernel
139s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
24-05-2022 21:30

Sharing

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General

Target

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
Size

382KB
MD5

15352c6407033c66cb9f8ef80212300f
SHA1

d142657e7df387165c396b2ddd53f043ca436624
SHA256

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802
SHA512

2838ce1d482f04e4b47b2521bd9c2dc41be667fc3e1f2fcecf402d2b00d7909836d8e895a7a79ee8bf47f131b0c3daa226d1730e833bde975d995c2506619363

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
tonyrikardo@yandex.com
Password:
akachukwu123@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
tonyrikardo@yandex.com
Password:
akachukwu123@

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3828-136-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

Email Collection

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description	pid	process	target process
PID 3040 set thread context of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

pid	process
3828	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
3828	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description pid process

Token: SeDebugPrivilege 3828 b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description	pid	process	target process
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
PID 3040 wrote to memory of 3828	3040	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

outlook_office_path 1 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

outlook_win_path 1 IoCs

Processes:

b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe

C:\Users\Admin\AppData\Local\Temp\b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
"C:\Users\Admin\AppData\Local\Temp\b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3040

C:\Users\Admin\AppData\Local\Temp\b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe
"C:\Users\Admin\AppData\Local\Temp\b2b160b95ff54a38c738a5a0aa204881441760712cdcea3e79f27aaba1307802.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3828

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3040-130-0x0000000000D90000-0x0000000000DF6000-memory.dmp

Filesize
408KB

Download
memory/3040-131-0x0000000005DF0000-0x0000000006394000-memory.dmp

Filesize
5.6MB

Download
memory/3040-132-0x0000000005790000-0x0000000005822000-memory.dmp

Filesize
584KB

Download
memory/3040-133-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/3040-134-0x0000000009300000-0x000000000939C000-memory.dmp

Filesize
624KB

Download
memory/3828-136-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/3828-135-0x0000000000000000-mapping.dmp

Download
memory/3828-137-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/3828-138-0x0000000006940000-0x0000000006990000-memory.dmp

Filesize
320KB

Download