Analysis

  • max time kernel
    17s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    22-07-2021 11:07

General

  • Target

    a61f6f94009c04607f1ba923adcaba0d.exe

  • Size

    796KB

  • MD5

    a61f6f94009c04607f1ba923adcaba0d

  • SHA1

    71b964ba1d7a6ddcebb9fadf29efba3f440c00af

  • SHA256

    36022c868a49fc44968f6647239106f536b2cae40340ad69e3772f7be482daf7

  • SHA512

    0d108e686fa33405b2deb127de0cb4ab60d9960d1af43ea4886496f8249c131da8a5a378b6f61b3d8e09179a295e2a7365b01d2db22d0fd916ce3190904a97dd

Malware Config

Extracted

Family

redline

Botnet

@bestiefFcs

C2

37.46.128.72:29799

Signatures

  • RedLine

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

  • RedLine Payload 3 IoCs
  • Looks for VMWare Tools registry key 2 TTPs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a61f6f94009c04607f1ba923adcaba0d.exe
    "C:\Users\Admin\AppData\Local\Temp\a61f6f94009c04607f1ba923adcaba0d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\a61f6f94009c04607f1ba923adcaba0d.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1984

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1072-59-0x0000000000190000-0x0000000000191000-memory.dmp
    Filesize

    4KB

  • memory/1072-61-0x0000000004D30000-0x0000000004E31000-memory.dmp
    Filesize

    1.0MB

  • memory/1072-62-0x00000000043E0000-0x00000000043E1000-memory.dmp
    Filesize

    4KB

  • memory/1072-63-0x0000000000580000-0x0000000000583000-memory.dmp
    Filesize

    12KB

  • memory/1984-64-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/1984-65-0x0000000000417E3E-mapping.dmp
  • memory/1984-66-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/1984-68-0x0000000004D70000-0x0000000004D71000-memory.dmp
    Filesize

    4KB