General

  • Target

    17ac3e76b5c9719d443b2d2923fe44740ad57dbed4ca0b837996b98915a87100

  • Size

    569KB

  • Sample

    220521-nfvp3aggel

  • MD5

    274b7648377cf491c81d4789d201ecee

  • SHA1

    c6818c64916180adc27c92a671f82afdc6deecd7

  • SHA256

    17ac3e76b5c9719d443b2d2923fe44740ad57dbed4ca0b837996b98915a87100

  • SHA512

    31e72d232763b0e82c3ea3f3c5f1bd3b7d17779d7eba3f3349f80132a25fcb8138c9fa184577d4c818c74664b29b20b26bb43e1e0a1e84311a76fa7c444c0d5d

Malware Config

Targets

    • Target

      17ac3e76b5c9719d443b2d2923fe44740ad57dbed4ca0b837996b98915a87100

    • Size

      569KB

    • MD5

      274b7648377cf491c81d4789d201ecee

    • SHA1

      c6818c64916180adc27c92a671f82afdc6deecd7

    • SHA256

      17ac3e76b5c9719d443b2d2923fe44740ad57dbed4ca0b837996b98915a87100

    • SHA512

      31e72d232763b0e82c3ea3f3c5f1bd3b7d17779d7eba3f3349f80132a25fcb8138c9fa184577d4c818c74664b29b20b26bb43e1e0a1e84311a76fa7c444c0d5d

    • AgentTesla

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

    • Disables Task Manager via registry modification

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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

    • 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 v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks