General

  • Target

    125d8bd267eeabca39bc31a2cf3471d254bb3f852813eee0ac0542f23f0201b2

  • Size

    890KB

  • Sample

    220809-knrrlaffej

  • MD5

    185b09878a7c9be2f5ab261f5244a8a0

  • SHA1

    2255e5050fc8867ecc7974727dfcad2eb1d8aca0

  • SHA256

    125d8bd267eeabca39bc31a2cf3471d254bb3f852813eee0ac0542f23f0201b2

  • SHA512

    bf9cc4ec025fbacf2c8faaca3f5eb5fda4adb59e2db4bc6ff015f10361e2f54369d597985da72152103fba19eefe3cc762e6b4ca5be413a454c6c1454570967b

Malware Config

Extracted

Family

redline

Botnet

nam3

C2

103.89.90.61:18728

Attributes
  • auth_value

    64b900120bbceaa6a9c60e9079492895

Extracted

Family

redline

Botnet

4

C2

31.41.244.134:11643

Attributes
  • auth_value

    a516b2d034ecd34338f12b50347fbd92

Extracted

Family

redline

Botnet

@tag12312341

C2

62.204.41.144:14096

Attributes
  • auth_value

    71466795417275fac01979e57016e277

Extracted

Family

redline

Botnet

5076357887

C2

195.54.170.157:16525

Attributes
  • auth_value

    0dfaff60271d374d0c206d19883e06f3

Extracted

Family

redline

Botnet

alfa

C2

46.175.148.142:32178

Attributes
  • auth_value

    5f6c4b42c0bce31d7557ce1726a401c5

Extracted

Family

raccoon

Botnet

f0c8034c83808635df0d9d8726d1bfd6

C2

http://45.95.11.158/

rc4.plain

Extracted

Family

raccoon

Botnet

afb5c633c4650f69312baef49db9dfa4

C2

http://77.73.132.74

rc4.plain

Targets

    • Target

      125d8bd267eeabca39bc31a2cf3471d254bb3f852813eee0ac0542f23f0201b2

    • Size

      890KB

    • MD5

      185b09878a7c9be2f5ab261f5244a8a0

    • SHA1

      2255e5050fc8867ecc7974727dfcad2eb1d8aca0

    • SHA256

      125d8bd267eeabca39bc31a2cf3471d254bb3f852813eee0ac0542f23f0201b2

    • SHA512

      bf9cc4ec025fbacf2c8faaca3f5eb5fda4adb59e2db4bc6ff015f10361e2f54369d597985da72152103fba19eefe3cc762e6b4ca5be413a454c6c1454570967b

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Raccoon Stealer payload

    • RedLine

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

    • RedLine payload

    • Enumerates VirtualBox DLL files

    • Looks for VirtualBox drivers on disk

    • Looks for VirtualBox executables on disk

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Looks for VMWare drivers on disk

    • Possible privilege escalation attempt

    • Stops running service(s)

    • 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.

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

4
T1497

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

File and Directory Discovery

4
T1083

Virtualization/Sandbox Evasion

4
T1497

Query Registry

4
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks