General

  • Target

    8c50793cf87fdebbc09e34a75a0b4a979eb36ac62a36d45b3aa1954f189766b1

  • Size

    636KB

  • Sample

    240327-be6pqage48

  • MD5

    899adc619d8890021674e798c260a475

  • SHA1

    777a050031f9823b3d7dcec960e99b03ea073ae4

  • SHA256

    8c50793cf87fdebbc09e34a75a0b4a979eb36ac62a36d45b3aa1954f189766b1

  • SHA512

    89317b73dcd3e3f1255c53f826182aa2affd73d7fe88ab580bae9f88eb36fc4f3a343b6bf4084595a46c255499e553d8e8b46557a82e0861e1588657f8100300

  • SSDEEP

    12288:xa5WrPR+iLp7HeiWiWB6HPwSX676nC5fzfgAC5ZLDUDmOP1sApBRc/6h3e0O9Osj:DT8gpTByB6vwSdnOfzfWRUh1X1DO96

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6763482403:AAFD7adhnK-FP2Y4MYPpYFDADA92fNUn8-Y/

Targets

    • Target

      8c50793cf87fdebbc09e34a75a0b4a979eb36ac62a36d45b3aa1954f189766b1

    • Size

      636KB

    • MD5

      899adc619d8890021674e798c260a475

    • SHA1

      777a050031f9823b3d7dcec960e99b03ea073ae4

    • SHA256

      8c50793cf87fdebbc09e34a75a0b4a979eb36ac62a36d45b3aa1954f189766b1

    • SHA512

      89317b73dcd3e3f1255c53f826182aa2affd73d7fe88ab580bae9f88eb36fc4f3a343b6bf4084595a46c255499e553d8e8b46557a82e0861e1588657f8100300

    • SSDEEP

      12288:xa5WrPR+iLp7HeiWiWB6HPwSX676nC5fzfgAC5ZLDUDmOP1sApBRc/6h3e0O9Osj:DT8gpTByB6vwSdnOfzfWRUh1X1DO96

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks