Analysis

  • max time kernel
    135s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2022 05:46

General

  • Target

    2423.sfx.exe

  • Size

    368KB

  • MD5

    a8b5a827e530c0eccd598e882c45ee16

  • SHA1

    56b7d4c0b5022a504696ca5ac17218e88d7869e3

  • SHA256

    bc5104f33b5a19b048ddb58e9bae390514d78631341acd9e098ffdb7114dbeef

  • SHA512

    091100a2200e910fad098246cfbb151672074a3b5b32b4facf759e7541cc19b13411cf619730e6befc4aa2b13255de33c48ed23f1adabcd1a167e3a52a2cb5fe

  • SSDEEP

    6144:2TouKrWBEu3/Z2lpGDHU3ykJotX+t41/pJ1FBPoWPJ8:2ToPWBv/cpGrU3yVtX+t4Vp/FBgeC

Score
10/10

Malware Config

Extracted

Family

redline

Botnet

5

C2

95.217.102.105:23728

Attributes
  • auth_value

    296895f62ea120f06c6fcec4dcc5ed5b

Signatures

  • RedLine

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

  • RedLine payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2423.sfx.exe
    "C:\Users\Admin\AppData\Local\Temp\2423.sfx.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\2423.exe
      "C:\Users\Admin\AppData\Local\Temp\2423.exe"
      2⤵
      • Executes dropped EXE
      PID:988

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\2423.exe
    Filesize

    137KB

    MD5

    adc399546530652e758999013f00367b

    SHA1

    60a843608baf23cc7789c68fc426f20b6dc29b41

    SHA256

    54d46f61cafb33d18862e4045a20d3dd802db35445be84c255bb62a50f5fcb65

    SHA512

    4dcc9a01e98aac84d44d3aa604809438903f2a4d004e01f07ce54a2ac01c55091015567019648c825140a33b4653b38ba9bf13ef1a9ef314c33cb0f18e1c5ad6

  • C:\Users\Admin\AppData\Local\Temp\2423.exe
    Filesize

    137KB

    MD5

    adc399546530652e758999013f00367b

    SHA1

    60a843608baf23cc7789c68fc426f20b6dc29b41

    SHA256

    54d46f61cafb33d18862e4045a20d3dd802db35445be84c255bb62a50f5fcb65

    SHA512

    4dcc9a01e98aac84d44d3aa604809438903f2a4d004e01f07ce54a2ac01c55091015567019648c825140a33b4653b38ba9bf13ef1a9ef314c33cb0f18e1c5ad6

  • memory/988-132-0x0000000000000000-mapping.dmp
  • memory/988-135-0x0000000000290000-0x00000000002B8000-memory.dmp
    Filesize

    160KB

  • memory/988-136-0x0000000005190000-0x00000000057A8000-memory.dmp
    Filesize

    6.1MB

  • memory/988-137-0x0000000004D10000-0x0000000004E1A000-memory.dmp
    Filesize

    1.0MB

  • memory/988-138-0x0000000004C40000-0x0000000004C52000-memory.dmp
    Filesize

    72KB

  • memory/988-139-0x0000000004CA0000-0x0000000004CDC000-memory.dmp
    Filesize

    240KB