General

  • Target

    tmp

  • Size

    340KB

  • Sample

    240327-zfvwlsbf33

  • MD5

    845971e68786f9c59ad9e4d5b7a2b1fe

  • SHA1

    619a41e8a05c9f1f8aa56684e6578f9efd2acf0f

  • SHA256

    e749697baf047ee9b5261865ffb43b8b92e77288f9d764798d00c2fd685ca573

  • SHA512

    c00e5cc5bc66c3ef5e078330aa26d5a6c29cd76c611418c3bf16e6f1d25693974757e97cd689c7a587d9a3c4ddecf6c90bd8be7f7015d082987cdc6e1683400b

  • SSDEEP

    6144:c8k80ckeOTFIdzXdVufRrLivwburclAp07IdY:c8k80ckeaId65LswburcypJ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7178103238:AAFpcijMmYeMlJJVnAmpmroCaHuSs5YlbxU/

Extracted

Family

xworm

C2

127.0.0.1:5000

51.89.241.91:5000

Attributes
  • Install_directory

    %Public%

  • install_file

    Adobe Cloud.exe

  • telegram

    https://api.telegram.org/bot5474576959:AAEFEPb7hmHEmq_ZM_jasyYk46DECm44Sm0/sendMessage?chat_id=1412104349

Targets

    • Target

      tmp

    • Size

      340KB

    • MD5

      845971e68786f9c59ad9e4d5b7a2b1fe

    • SHA1

      619a41e8a05c9f1f8aa56684e6578f9efd2acf0f

    • SHA256

      e749697baf047ee9b5261865ffb43b8b92e77288f9d764798d00c2fd685ca573

    • SHA512

      c00e5cc5bc66c3ef5e078330aa26d5a6c29cd76c611418c3bf16e6f1d25693974757e97cd689c7a587d9a3c4ddecf6c90bd8be7f7015d082987cdc6e1683400b

    • SSDEEP

      6144:c8k80ckeOTFIdzXdVufRrLivwburclAp07IdY:c8k80ckeaId65LswburcypJ

    • AgentTesla

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

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks