General

  • Target

    a6d21fe6568d8e0768ace884cefb35fc7ae49240147f3ec33de0e7f91a9983b8

  • Size

    3.7MB

  • Sample

    220312-b57ppseab2

  • MD5

    994ae292d05434f3c9035626df467b05

  • SHA1

    10176048230b7166e45365ef94391d9c8a033e9f

  • SHA256

    a6d21fe6568d8e0768ace884cefb35fc7ae49240147f3ec33de0e7f91a9983b8

  • SHA512

    6d21446e10fa440a0db95c9cefc3b698b0daa518d0514db8e5a967bc3ee7362a36db1b5621d6a50c81c5a9aebb5b64c338205a967dfda116624c6aa868832277

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.71/cs/SkyDrive.oo

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.71/cs/Fax.oo

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.71/cs/RED.oo

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.71/Offer/Offer.oo

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

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

vidar

Version

39.4

Botnet

706

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

Lyla2

C2

bonezarisor.xyz:80

Attributes
  • auth_value

    de2a98abc502b86b809fbc366af9256a

Targets

    • Target

      a6d21fe6568d8e0768ace884cefb35fc7ae49240147f3ec33de0e7f91a9983b8

    • Size

      3.7MB

    • MD5

      994ae292d05434f3c9035626df467b05

    • SHA1

      10176048230b7166e45365ef94391d9c8a033e9f

    • SHA256

      a6d21fe6568d8e0768ace884cefb35fc7ae49240147f3ec33de0e7f91a9983b8

    • SHA512

      6d21446e10fa440a0db95c9cefc3b698b0daa518d0514db8e5a967bc3ee7362a36db1b5621d6a50c81c5a9aebb5b64c338205a967dfda116624c6aa868832277

    • Modifies Windows Defender Real-time Protection settings

    • OnlyLogger

      A tiny loader that uses IPLogger to get its payload.

    • 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 NtCreateUserProcessOtherParentProcess

    • Tofsee

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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • OnlyLogger Payload

    • 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 file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • UPX packed file

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

    • 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.

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Hidden Files and Directories

2
T1158

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

Process Discovery

1
T1057

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks