General

  • Target

    21f0dd6e4dc5b1ecb0ec6b266ba875702d5fea13a0066c188a566f89d0ccb233

  • Size

    3.8MB

  • Sample

    220222-nw7dssgde8

  • MD5

    01d0755ff4f1504feee216aff83a4665

  • SHA1

    b0adb3f973ecf492bfe98d6e1c90319b93c22e63

  • SHA256

    21f0dd6e4dc5b1ecb0ec6b266ba875702d5fea13a0066c188a566f89d0ccb233

  • SHA512

    d7c740b781c8778db87440b2c1ec39d730a42b0d73e37a5eb2a9717ff4e692a2199df20714d06aa479c6d79e9c4fbb7dffb1d6546c070285d51fdd993e52bdba

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

933

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Cana

C2

176.111.174.254:56328

Extracted

Family

redline

Botnet

Ani

C2

detuyaluro.xyz:80

Extracted

Family

tofsee

C2

patmushta.info

ovicrush.cn

Targets

    • Target

      21f0dd6e4dc5b1ecb0ec6b266ba875702d5fea13a0066c188a566f89d0ccb233

    • Size

      3.8MB

    • MD5

      01d0755ff4f1504feee216aff83a4665

    • SHA1

      b0adb3f973ecf492bfe98d6e1c90319b93c22e63

    • SHA256

      21f0dd6e4dc5b1ecb0ec6b266ba875702d5fea13a0066c188a566f89d0ccb233

    • SHA512

      d7c740b781c8778db87440b2c1ec39d730a42b0d73e37a5eb2a9717ff4e692a2199df20714d06aa479c6d79e9c4fbb7dffb1d6546c070285d51fdd993e52bdba

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

7
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks