General

  • Target

    a72b8c2fdf7c1119fec2513671065498.exe

  • Size

    136KB

  • Sample

    210718-wgsx14z4fe

  • MD5

    a72b8c2fdf7c1119fec2513671065498

  • SHA1

    bcfdbb7313fbcbe56d9f94645c025222f53de362

  • SHA256

    ccfd6e626a5381e700e06cec9abf41543d924a7f04d9f78ef3a04a847577d31e

  • SHA512

    280b307b847465f4742246df5cfd0094c3b1d48923a11048f418104d5df816e7543ec1d01b62fc06709c49224cee366022a2b32053bc88fd7dbe724ab221c3d5

Malware Config

Targets

    • Target

      a72b8c2fdf7c1119fec2513671065498.exe

    • Size

      136KB

    • MD5

      a72b8c2fdf7c1119fec2513671065498

    • SHA1

      bcfdbb7313fbcbe56d9f94645c025222f53de362

    • SHA256

      ccfd6e626a5381e700e06cec9abf41543d924a7f04d9f78ef3a04a847577d31e

    • SHA512

      280b307b847465f4742246df5cfd0094c3b1d48923a11048f418104d5df816e7543ec1d01b62fc06709c49224cee366022a2b32053bc88fd7dbe724ab221c3d5

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks