General

  • Target

    b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4.exe

  • Size

    2.5MB

  • Sample

    210830-2h1f1et48j

  • MD5

    7e9acb5b9dd42cebd1bc1fd896730da3

  • SHA1

    89ea1cbe5189bc86df11c1328e229dd7f3a6c86e

  • SHA256

    b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4

  • SHA512

    d7f65adebbceca89b6bb93f9854996840e6c0daacbf92e16570589f99b024c8ca8f3e783415c4fdf22fb5797717d5d41b66ccc42a56ae099d436b4a52257b4dc

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

40.1

Botnet

706

C2

https://eduarroma.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

292.08

C2

95.181.152.47:15089

Targets

    • Target

      b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4.exe

    • Size

      2.5MB

    • MD5

      7e9acb5b9dd42cebd1bc1fd896730da3

    • SHA1

      89ea1cbe5189bc86df11c1328e229dd7f3a6c86e

    • SHA256

      b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4

    • SHA512

      d7f65adebbceca89b6bb93f9854996840e6c0daacbf92e16570589f99b024c8ca8f3e783415c4fdf22fb5797717d5d41b66ccc42a56ae099d436b4a52257b4dc

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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 v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Tasks