agenttesla | 6941a5420e23e7309cc09e6ffebf847a7c781dbbb726996a2b3d36340d347819

General

Target

27caf0391db69d2b2543a0172747e62a9a6e208c.exe
Size

556KB
MD5

b757c4ac5a46c4e9fc2cf9e924702804
SHA1

27caf0391db69d2b2543a0172747e62a9a6e208c
SHA256

6941a5420e23e7309cc09e6ffebf847a7c781dbbb726996a2b3d36340d347819
SHA512

79cb0c6d3e2ec59f230fb221937104bd9a6890276eb1c0a8283340359380610cc8f8b3c0875b1b0e360967d50f924a9a8b4be7a2f70165927d3278f660198b36
SSDEEP

12288:CYZ/txeoKFg+15c6qRUbTAg9sSBa04UtUFeJ9/TG+R:CYZ/HeoKC+1KnG9sSp4UtUcn/R

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
4328	phqhhj.exe
232	phqhhj.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	phqhhj.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	phqhhj.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	phqhhj.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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GsHLJkZ = "C:\\Users\\Admin\\AppData\\Roaming\\GsHLJkZ\\GsHLJkZ.exe"	phqhhj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4328 set thread context of 232	4328	phqhhj.exe	80

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4328	phqhhj.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	232	phqhhj.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 4328	4452	27caf0391db69d2b2543a0172747e62a9a6e208c.exe	79
PID 4452 wrote to memory of 4328	4452	27caf0391db69d2b2543a0172747e62a9a6e208c.exe	79
PID 4452 wrote to memory of 4328	4452	27caf0391db69d2b2543a0172747e62a9a6e208c.exe	79
PID 4328 wrote to memory of 232	4328	phqhhj.exe	80
PID 4328 wrote to memory of 232	4328	phqhhj.exe	80
PID 4328 wrote to memory of 232	4328	phqhhj.exe	80
PID 4328 wrote to memory of 232	4328	phqhhj.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	phqhhj.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	phqhhj.exe

C:\Users\Admin\AppData\Local\Temp\27caf0391db69d2b2543a0172747e62a9a6e208c.exe
"C:\Users\Admin\AppData\Local\Temp\27caf0391db69d2b2543a0172747e62a9a6e208c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Users\Admin\AppData\Local\Temp\phqhhj.exe
  "C:\Users\Admin\AppData\Local\Temp\phqhhj.exe" C:\Users\Admin\AppData\Local\Temp\wlczo.xb
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4328
- - C:\Users\Admin\AppData\Local\Temp\phqhhj.exe
    "C:\Users\Admin\AppData\Local\Temp\phqhhj.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:232

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

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\phqhhj.exe

Filesize
332KB

MD5
2944001abd5735df39e6962bc0c37497

SHA1
4473dc8fe890aa8bf117e00e6b5fcf433352c77f

SHA256
0484b6558adaa6c638a4b9cc89bd485949b62f4988c29432f5b2326aa41a00b8

SHA512
134f92107ebfba9b9379946af618fe96e36a412fd8d94cf7b23f9b808172296b91cb6714bae2cbb343d3898954b80b657951fa644897ffa6826ad07ba664b5d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\phqhhj.exe

Filesize
332KB

MD5
2944001abd5735df39e6962bc0c37497

SHA1
4473dc8fe890aa8bf117e00e6b5fcf433352c77f

SHA256
0484b6558adaa6c638a4b9cc89bd485949b62f4988c29432f5b2326aa41a00b8

SHA512
134f92107ebfba9b9379946af618fe96e36a412fd8d94cf7b23f9b808172296b91cb6714bae2cbb343d3898954b80b657951fa644897ffa6826ad07ba664b5d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\phqhhj.exe

Filesize
332KB

MD5
2944001abd5735df39e6962bc0c37497

SHA1
4473dc8fe890aa8bf117e00e6b5fcf433352c77f

SHA256
0484b6558adaa6c638a4b9cc89bd485949b62f4988c29432f5b2326aa41a00b8

SHA512
134f92107ebfba9b9379946af618fe96e36a412fd8d94cf7b23f9b808172296b91cb6714bae2cbb343d3898954b80b657951fa644897ffa6826ad07ba664b5d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\rvewrhqjtc.ws

Filesize
263KB

MD5
703200c1820f0a7d090bb342573acffe

SHA1
d14a86cf92a11faa2692c113ad34306332aeee1b

SHA256
fabf628bb502705160b50886846b06951f50c19982d223664e518515f33ff78a

SHA512
010be668ca02ec30018ba02a2d70ce30db88cfdea06cb06813e546faaa6bf0b7397c9b7440dd8a5844a0210eb97cd646020a2789905b144f88a85420dfdf091e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wlczo.xb

Filesize
5KB

MD5
069493cf50c4a4d645746c5158b1ab9c

SHA1
1dddb79af31ea90ce6d1d044eb8c6da422a9b715

SHA256
03101a83613201c1b3987f8b95aa1199246e7a7ec994de87fe988f891a1b6376

SHA512
2351d70da060f7704ff6302a68ba40485d6db77f7bb51d547085d6496754c694125778d6a85f2f404b34f056fa6dbb1435d82d074e5fdcab29aba9440e526a70

Download Submit
memory/232-137-0x0000000000000000-mapping.dmp

Download
memory/232-139-0x0000000005B70000-0x0000000006114000-memory.dmp

Filesize
5.6MB

Download
memory/232-140-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/232-141-0x00000000055C0000-0x0000000005626000-memory.dmp

Filesize
408KB

Download
memory/232-142-0x0000000006440000-0x00000000064D2000-memory.dmp

Filesize
584KB

Download
memory/232-143-0x0000000006420000-0x000000000642A000-memory.dmp

Filesize
40KB

Download
memory/232-144-0x00000000066C0000-0x0000000006710000-memory.dmp

Filesize
320KB

Download
memory/232-145-0x00000000068E0000-0x0000000006AA2000-memory.dmp

Filesize
1.8MB

Download
memory/4328-132-0x0000000000000000-mapping.dmp

Download

Analysis

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