General

  • Target

    iWBFskGDau_ori40teleevery.js

  • Size

    413KB

  • Sample

    220628-l2tc1sadh2

  • MD5

    4fc2afe00fa6f77bf8c63bf48d04c49c

  • SHA1

    4fe56745ef29fb87e75e05c878da2495a90b878c

  • SHA256

    34ac6880e8974d521aea21df792f98ea07e4ea0f5d868847e8129e0f6b81b39b

  • SHA512

    1de1febdfa9c7e79f5111a494e65c6b50d9db80088201ae83a9d85314a1e0dfbf62a4bfbdd01ec9ff737bd2fadcb35da85a18302f9cd986e758dc05f27ac26e5

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5171883538:AAEyFWuNh68SJNNpkDCQbviRgrklZA3K4Qs/sendDocument

Targets

    • Target

      iWBFskGDau_ori40teleevery.js

    • Size

      413KB

    • MD5

      4fc2afe00fa6f77bf8c63bf48d04c49c

    • SHA1

      4fe56745ef29fb87e75e05c878da2495a90b878c

    • SHA256

      34ac6880e8974d521aea21df792f98ea07e4ea0f5d868847e8129e0f6b81b39b

    • SHA512

      1de1febdfa9c7e79f5111a494e65c6b50d9db80088201ae83a9d85314a1e0dfbf62a4bfbdd01ec9ff737bd2fadcb35da85a18302f9cd986e758dc05f27ac26e5

    • AgentTesla

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

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • 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.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks