Analysis

  • max time kernel
    26s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 15:38

General

  • Target

    c5f656e37e0f79c1d657fac79c0dc6f9.exe

  • Size

    689KB

  • MD5

    c5f656e37e0f79c1d657fac79c0dc6f9

  • SHA1

    9f8ea43cff55f791bc07b54831db69ff8e538536

  • SHA256

    4a366034ebd2de1c9b6a13b215a82d56b31c0ed5f6162edc55b11084b69d1e46

  • SHA512

    7a4269a1bcebb4f2858c66599ac609bc8a22972e72a8fe073b0f4262c07ff273ed7833cdedd901444187367dae550d753c2c607fcc3effbf7a8cec9b9cadb578

Malware Config

Extracted

Family

redline

Botnet

MIX 27.07

C2

185.215.113.17:18597

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5f656e37e0f79c1d657fac79c0dc6f9.exe
    "C:\Users\Admin\AppData\Local\Temp\c5f656e37e0f79c1d657fac79c0dc6f9.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Users\Admin\AppData\Roaming\dahgarq\apineshpp.exe
      apineshpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:512

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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\dahgarq\apineshpp.exe
    MD5

    cc904eb37f5b7045892d29350c8022ce

    SHA1

    91a718ea5544056e870ff49e7759d1b3b5818cea

    SHA256

    8e41b7dbc4efb96ccd077635859088866c629a1f131364bb64de2bf72b852723

    SHA512

    16e64de75fd6bb4d908a1208f17fb47fc94c86b6ac3f207cb3a52af9486f65a50237dfc3984851997fc9d752cf5715fb541d8821bff74ed0f3113c8b5276bf72

  • \Users\Admin\AppData\Roaming\dahgarq\apineshpp.exe
    MD5

    cc904eb37f5b7045892d29350c8022ce

    SHA1

    91a718ea5544056e870ff49e7759d1b3b5818cea

    SHA256

    8e41b7dbc4efb96ccd077635859088866c629a1f131364bb64de2bf72b852723

    SHA512

    16e64de75fd6bb4d908a1208f17fb47fc94c86b6ac3f207cb3a52af9486f65a50237dfc3984851997fc9d752cf5715fb541d8821bff74ed0f3113c8b5276bf72

  • \Users\Admin\AppData\Roaming\dahgarq\apineshpp.exe
    MD5

    cc904eb37f5b7045892d29350c8022ce

    SHA1

    91a718ea5544056e870ff49e7759d1b3b5818cea

    SHA256

    8e41b7dbc4efb96ccd077635859088866c629a1f131364bb64de2bf72b852723

    SHA512

    16e64de75fd6bb4d908a1208f17fb47fc94c86b6ac3f207cb3a52af9486f65a50237dfc3984851997fc9d752cf5715fb541d8821bff74ed0f3113c8b5276bf72

  • memory/512-66-0x00000000003D0000-0x00000000003FF000-memory.dmp
    Filesize

    188KB

  • memory/512-64-0x0000000000000000-mapping.dmp
  • memory/512-67-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/512-68-0x00000000020E0000-0x00000000020FB000-memory.dmp
    Filesize

    108KB

  • memory/512-69-0x0000000002120000-0x000000000213A000-memory.dmp
    Filesize

    104KB

  • memory/512-72-0x0000000002183000-0x0000000002184000-memory.dmp
    Filesize

    4KB

  • memory/512-71-0x0000000002182000-0x0000000002183000-memory.dmp
    Filesize

    4KB

  • memory/512-73-0x0000000002184000-0x0000000002186000-memory.dmp
    Filesize

    8KB

  • memory/512-70-0x0000000002181000-0x0000000002182000-memory.dmp
    Filesize

    4KB

  • memory/1852-59-0x0000000074F31000-0x0000000074F33000-memory.dmp
    Filesize

    8KB

  • memory/1852-60-0x00000000004E0000-0x00000000005AC000-memory.dmp
    Filesize

    816KB

  • memory/1852-61-0x0000000000400000-0x00000000004D4000-memory.dmp
    Filesize

    848KB