Analysis

  • max time kernel
    84s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    22-05-2022 05:38

General

  • Target

    Offscum.exe

  • Size

    384KB

  • MD5

    f825accdbb1a8a19a89c2222866edcdd

  • SHA1

    b684f64d648ef96328c40317187c5b77a9bd7731

  • SHA256

    ade8d7f178b2be67a5b7254cd7db3db9541c8ab16c493a2f33aa0fe4f303a9b2

  • SHA512

    84c3b95cea47cefbbc285ff8a216c46300dc1353032095439110c0a06eaac60a5bb45b93ec9ccd5501d70fb73583f225251e77443f5abf9e1030711831e943e3

Malware Config

Extracted

Family

redline

Botnet

test1

C2

185.215.113.75:80

Attributes
  • auth_value

    7ab4a4e2eae9eb7ae10f64f68df53bb3

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Offscum.exe
    "C:\Users\Admin\AppData\Local\Temp\Offscum.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2032

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2032-54-0x0000000002D0E000-0x0000000002D38000-memory.dmp
    Filesize

    168KB

  • memory/2032-55-0x0000000000220000-0x0000000000257000-memory.dmp
    Filesize

    220KB

  • memory/2032-56-0x0000000000400000-0x0000000002B7C000-memory.dmp
    Filesize

    39.5MB

  • memory/2032-57-0x0000000002B80000-0x0000000002BB0000-memory.dmp
    Filesize

    192KB

  • memory/2032-58-0x0000000002CB0000-0x0000000002CDE000-memory.dmp
    Filesize

    184KB

  • memory/2032-59-0x0000000076461000-0x0000000076463000-memory.dmp
    Filesize

    8KB