General

  • Target

    44AC6FC2F8D02857F9D7A7BFDE1E2376.exe

  • Size

    3.9MB

  • Sample

    210813-bk5em7bt5x

  • MD5

    44ac6fc2f8d02857f9d7a7bfde1e2376

  • SHA1

    0e3c85f03fd36cc4001fb68996b53ff8afb17f7e

  • SHA256

    bae14391cbc9ddb999947b70f3975a7309f73d422a02aaa13ae9100baaa0652c

  • SHA512

    585a915f8669d2303eca95729ec062dbe08907c33e5685f68a0fa563d3ba03f0754b82982c28e74a1f586d5c96872cb1a0c11fb30eec95c3263fcf058ec2cca8

Malware Config

Extracted

Family

vidar

Version

39.9

Botnet

706

C2

https://prophefliloc.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

http://readinglistforjuly1.xyz/

http://readinglistforjuly2.xyz/

http://readinglistforjuly3.xyz/

http://readinglistforjuly4.xyz/

http://readinglistforjuly5.xyz/

http://readinglistforjuly6.xyz/

http://readinglistforjuly7.xyz/

http://readinglistforjuly8.xyz/

http://readinglistforjuly9.xyz/

http://readinglistforjuly10.xyz/

http://readinglistforjuly1.site/

http://readinglistforjuly2.site/

http://readinglistforjuly3.site/

http://readinglistforjuly4.site/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

vidar

Version

40

Botnet

916

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    916

Targets

    • Target

      44AC6FC2F8D02857F9D7A7BFDE1E2376.exe

    • Size

      3.9MB

    • MD5

      44ac6fc2f8d02857f9d7a7bfde1e2376

    • SHA1

      0e3c85f03fd36cc4001fb68996b53ff8afb17f7e

    • SHA256

      bae14391cbc9ddb999947b70f3975a7309f73d422a02aaa13ae9100baaa0652c

    • SHA512

      585a915f8669d2303eca95729ec062dbe08907c33e5685f68a0fa563d3ba03f0754b82982c28e74a1f586d5c96872cb1a0c11fb30eec95c3263fcf058ec2cca8

    • 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.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • 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.

    • suricata: ET MALWARE GCleaner Downloader Activity M1

      suricata: ET MALWARE GCleaner Downloader Activity M1

    • suricata: ET MALWARE Observed Elysium Stealer Variant CnC Domain (all-brain-company .xyz in TLS SNI)

      suricata: ET MALWARE Observed Elysium Stealer Variant CnC Domain (all-brain-company .xyz in TLS SNI)

    • 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

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks