General

  • Target

    1a27e7943700b31774ab4347b5d2f92be9a50b8a7daeab5b066a0af53c11cdec.exe

  • Size

    3.5MB

  • Sample

    220924-blm6ysbffm

  • MD5

    e84c47fb5d47792116a7121b411481f9

  • SHA1

    6e16605c8403083a70068199930e5b6a3efed072

  • SHA256

    1a27e7943700b31774ab4347b5d2f92be9a50b8a7daeab5b066a0af53c11cdec

  • SHA512

    a0e489ae49940f7ff8823eed6570a1d81da595b82515eda33bf210f10267042e8c1e8bf4e4d704b27417372a41a33d469c10de32736aed5859446ead52af699b

  • SSDEEP

    98304:xd18QV51R2H8BbH46dTZPDN6vsyHdfthjqCvLUBsKnS:x78QD1ecbYsTZPDN6vHdHjrLUCKS

Malware Config

Extracted

Family

redline

Botnet

Cana

C2

176.111.174.254:56328

Extracted

Family

vidar

Version

39.4

Botnet

706

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

ServAni

C2

87.251.71.195:82

Extracted

Family

nymaim

C2

208.67.104.97

85.31.46.167

Extracted

Family

vidar

Version

54.6

Botnet

1679

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes
  • profile_id

    1679

Extracted

Family

djvu

C2

http://winnlinne.com/test3/get.php

Attributes
  • extension

    .ofoq

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

redline

Botnet

ruzki18

C2

176.113.115.146:9582

Attributes
  • auth_value

    7be17614eb631964b4725d83c6b7cc76

Targets

    • Target

      1a27e7943700b31774ab4347b5d2f92be9a50b8a7daeab5b066a0af53c11cdec.exe

    • Size

      3.5MB

    • MD5

      e84c47fb5d47792116a7121b411481f9

    • SHA1

      6e16605c8403083a70068199930e5b6a3efed072

    • SHA256

      1a27e7943700b31774ab4347b5d2f92be9a50b8a7daeab5b066a0af53c11cdec

    • SHA512

      a0e489ae49940f7ff8823eed6570a1d81da595b82515eda33bf210f10267042e8c1e8bf4e4d704b27417372a41a33d469c10de32736aed5859446ead52af699b

    • SSDEEP

      98304:xd18QV51R2H8BbH46dTZPDN6vsyHdfthjqCvLUBsKnS:x78QD1ecbYsTZPDN6vHdHjrLUCKS

    • Detect Fabookie payload

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Fabookie

      Fabookie is facebook account info stealer.

    • Modifies Windows Defender Real-time Protection settings

    • NyMaim

      NyMaim is a malware with various capabilities written in C++ and first seen in 2013.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • 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.

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

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial 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.

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • 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

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

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

7
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks