agenttesla | 5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2

General

Target

5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
Size

890KB
MD5

852b20b7affadeb7d7d6b4a88c2355b5
SHA1

a8ec160119ea5c5a2f6b79de1d611a5c45f4d248
SHA256

5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2
SHA512

eb72ac6932f74b0843dbcf9401e2efafd265154e7bc47b49a4e34dc2025c066ba29d0c17d7fdec79c80d717f52e7c1d6646f0e4452b6861a4adee0952baf58e8
SSDEEP

12288:RoQgKZ/nXt7virmWhlGLaQYIYvFW67gl89/r2AXyRh+DITnAIuJS6RXpRALqUpjl:qu8RKh+DyAI6pCLD

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1360033246:AAF6H8m6YrL09doyxtsvJzZ_cIl__BCF4aU/sendDocument

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1960-138-0x0000000000400000-0x000000000043C000-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

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kmk = "C:\\Users\\Admin\\AppData\\Roaming\\kmk\\kmk.exe"	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3564 set thread context of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
1960	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
1960	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
Token: SeDebugPrivilege	1960	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1960	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88
PID 3564 wrote to memory of 1960	3564	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe

C:\Users\Admin\AppData\Local\Temp\5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
"C:\Users\Admin\AppData\Local\Temp\5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Users\Admin\AppData\Local\Temp\5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.exe
  "C:\Users\Admin\AppData\Local\Temp\5c571a20aef5d31ad3edbfd65e33540201dde1f9ccf5eaae84332f1bf1e09ea2.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:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1960-138-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1960-139-0x0000000005EA0000-0x0000000005F06000-memory.dmp

Filesize
408KB

Download
memory/1960-140-0x0000000005C30000-0x0000000005C80000-memory.dmp

Filesize
320KB

Download
memory/3564-132-0x0000000000300000-0x00000000003E4000-memory.dmp

Filesize
912KB

Download
memory/3564-133-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/3564-134-0x0000000004DD0000-0x0000000004E62000-memory.dmp

Filesize
584KB

Download
memory/3564-135-0x0000000004D90000-0x0000000004D9A000-memory.dmp

Filesize
40KB

Download
memory/3564-136-0x00000000050F0000-0x000000000518C000-memory.dmp

Filesize
624KB

Download

Analysis

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