Analysis

  • max time kernel
    40s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    15-04-2022 01:12

General

  • Target

    b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe

  • Size

    634KB

  • MD5

    e8a57951fb4a981c29177e678a4d69e0

  • SHA1

    9f088792cb02b9f31b57fe7a82f1a34e49c4c376

  • SHA256

    b5c4acf55126207efb15b26683b7c0817b32717bb497622999413e54d26f04ce

  • SHA512

    d62e6a4f5ca2addd81973002bc664b80dab664b444810110fba9062c20f77f68620d84dbacc30678bf25d85e6364aea7c1e63569225587d704f8631958fecc5a

Malware Config

Extracted

Family

redline

Botnet

mix15.04

C2

185.215.113.70:12189

Attributes
  • auth_value

    7be339254ae826f7fe03de06dd444581

Signatures

  • RedLine

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

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe
    "C:\Users\Admin\AppData\Local\Temp\b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1180
    • C:\Users\Admin\AppData\Roaming\shftool\strongix.exe
      strongix.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\shftool\strongix.exe

    Filesize

    369KB

    MD5

    6fe9416809f5da05b48bf86e1375e7be

    SHA1

    44ec2fa73a3e5ad6de01605815efedd324d2efca

    SHA256

    7607c9b4b1a6625acab3d15d65ab98dbc5dfa5a96c38cc83837354364ca50ce4

    SHA512

    4d9a44b8ed59b862cad26457f052dc26edf7842671fad6a824bc43179b672c5bdad4e25e0b67f2fc7872221a5ac9f7d78264387e3fadf12479fc06e1b4e5a35e

  • \Users\Admin\AppData\Roaming\shftool\strongix.exe

    Filesize

    369KB

    MD5

    6fe9416809f5da05b48bf86e1375e7be

    SHA1

    44ec2fa73a3e5ad6de01605815efedd324d2efca

    SHA256

    7607c9b4b1a6625acab3d15d65ab98dbc5dfa5a96c38cc83837354364ca50ce4

    SHA512

    4d9a44b8ed59b862cad26457f052dc26edf7842671fad6a824bc43179b672c5bdad4e25e0b67f2fc7872221a5ac9f7d78264387e3fadf12479fc06e1b4e5a35e

  • \Users\Admin\AppData\Roaming\shftool\strongix.exe

    Filesize

    369KB

    MD5

    6fe9416809f5da05b48bf86e1375e7be

    SHA1

    44ec2fa73a3e5ad6de01605815efedd324d2efca

    SHA256

    7607c9b4b1a6625acab3d15d65ab98dbc5dfa5a96c38cc83837354364ca50ce4

    SHA512

    4d9a44b8ed59b862cad26457f052dc26edf7842671fad6a824bc43179b672c5bdad4e25e0b67f2fc7872221a5ac9f7d78264387e3fadf12479fc06e1b4e5a35e

  • memory/1180-58-0x0000000000400000-0x00000000004D4000-memory.dmp

    Filesize

    848KB

  • memory/1180-54-0x00000000002D8000-0x0000000000344000-memory.dmp

    Filesize

    432KB

  • memory/1180-56-0x00000000002D8000-0x0000000000344000-memory.dmp

    Filesize

    432KB

  • memory/1180-57-0x0000000001CD0000-0x0000000001D9E000-memory.dmp

    Filesize

    824KB

  • memory/1180-55-0x0000000076C81000-0x0000000076C83000-memory.dmp

    Filesize

    8KB

  • memory/1772-63-0x00000000005D8000-0x0000000000602000-memory.dmp

    Filesize

    168KB

  • memory/1772-64-0x0000000000850000-0x0000000000880000-memory.dmp

    Filesize

    192KB

  • memory/1772-65-0x0000000001FC0000-0x0000000001FEE000-memory.dmp

    Filesize

    184KB

  • memory/1772-68-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/1772-67-0x0000000000260000-0x0000000000297000-memory.dmp

    Filesize

    220KB

  • memory/1772-66-0x00000000005D8000-0x0000000000602000-memory.dmp

    Filesize

    168KB

  • memory/1772-69-0x0000000004A04000-0x0000000004A06000-memory.dmp

    Filesize

    8KB