Resubmissions

28-09-2023 16:48

230928-vbld6acg9x 10

General

  • Target

    8f5c437099107526b66b326236b9df8b18446df5265e4231732c0a4799049cd2

  • Size

    883KB

  • Sample

    230928-vbld6acg9x

  • MD5

    df5115aa6c63de263f36e294bc7efa82

  • SHA1

    75efec53f294dbf676332d39de81d53a8eb51486

  • SHA256

    8f5c437099107526b66b326236b9df8b18446df5265e4231732c0a4799049cd2

  • SHA512

    9a6adcf19bc198e846eaefb7ad3ea270d20081b6a805094f6cce101afb323b9848d04fca372ea70bf5f7f9ecb005defcb961077a623293a894ee783f0f41fbbc

  • SSDEEP

    12288:M+vAo+KpDW9g145x58OpGH2EJ/qdDyyZpxThSGu4ywBXI/9:MNSW9g145x58Opc/yVzSaXw9

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

luate

C2

77.91.124.55:19071

Attributes
  • auth_value

    e45cd419aba6c9d372088ffe5629308b

Extracted

Family

redline

Botnet

gruha

C2

77.91.124.55:19071

Attributes
  • auth_value

    2f4cf2e668a540e64775b27535cc6892

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

fabookie

C2

http://app.nnnaajjjgc.com/check/safe

Targets

    • Target

      8f5c437099107526b66b326236b9df8b18446df5265e4231732c0a4799049cd2

    • Size

      883KB

    • MD5

      df5115aa6c63de263f36e294bc7efa82

    • SHA1

      75efec53f294dbf676332d39de81d53a8eb51486

    • SHA256

      8f5c437099107526b66b326236b9df8b18446df5265e4231732c0a4799049cd2

    • SHA512

      9a6adcf19bc198e846eaefb7ad3ea270d20081b6a805094f6cce101afb323b9848d04fca372ea70bf5f7f9ecb005defcb961077a623293a894ee783f0f41fbbc

    • SSDEEP

      12288:M+vAo+KpDW9g145x58OpGH2EJ/qdDyyZpxThSGu4ywBXI/9:MNSW9g145x58Opc/yVzSaXw9

    • Detect Fabookie payload

    • Detects Healer an antivirus disabler dropper

    • Fabookie

      Fabookie is facebook account info stealer.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • Mystic

      Mystic is an infostealer written in C++.

    • 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.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks