General

  • Target

    file.exe

  • Size

    5.7MB

  • Sample

    220831-s1b6nsaac8

  • MD5

    3772f923f08c925ad5f894d3a21e5d7d

  • SHA1

    bcd6cc5034f1d4d194dd358a772fdfc5e03371ab

  • SHA256

    0e63b13097c8e9ed9f0fe06c7972be1beb8890e6e7640584be1afd5740276307

  • SHA512

    20a421ac32a930e3c1426209e66e640ddde54ac635ea56e2ef02f77ce4db0d2b7147949c1c1052f96c7a7c67a4a9d03ecb070e3c3104d45f2fc9d5c6a5c9eb36

  • SSDEEP

    98304:X3P9ZJBxTHwd40KLwItbkfbw9m8z/ZqQYVzTzd+jaQ5VUzM:LxzwdGqw9m8jP6zd+uO0

Malware Config

Extracted

Family

redline

Botnet

2

C2

116.203.187.3:14916

Attributes
  • auth_value

    1c0b2a7d9265a0bd7186c9687fe62c4e

Targets

    • Target

      file.exe

    • Size

      5.7MB

    • MD5

      3772f923f08c925ad5f894d3a21e5d7d

    • SHA1

      bcd6cc5034f1d4d194dd358a772fdfc5e03371ab

    • SHA256

      0e63b13097c8e9ed9f0fe06c7972be1beb8890e6e7640584be1afd5740276307

    • SHA512

      20a421ac32a930e3c1426209e66e640ddde54ac635ea56e2ef02f77ce4db0d2b7147949c1c1052f96c7a7c67a4a9d03ecb070e3c3104d45f2fc9d5c6a5c9eb36

    • SSDEEP

      98304:X3P9ZJBxTHwd40KLwItbkfbw9m8z/ZqQYVzTzd+jaQ5VUzM:LxzwdGqw9m8jP6zd+uO0

    • RedLine

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

    • RedLine payload

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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

    • 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.

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks