Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-12-2020 07:35

General

  • Target

    1f87473ccecf48a5a570ad8ef35c0ee4.exe

  • Size

    594KB

  • MD5

    1f87473ccecf48a5a570ad8ef35c0ee4

  • SHA1

    4e21b16f6574b28d67fcecd7aebae704f921b4f2

  • SHA256

    a8d6e8219c6ec6f8284026609f9989fa8caa68e517a239973da19793d1fc2d60

  • SHA512

    285578f8a7673948483854b05a4ff09c658432123f9c166ae3629beeabd6e72523687d8a56b76b8cb34fd814cc109116c0abdd25bddae2465b7cb36f153435f4

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 1 IoCs
  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f87473ccecf48a5a570ad8ef35c0ee4.exe
    "C:\Users\Admin\AppData\Local\Temp\1f87473ccecf48a5a570ad8ef35c0ee4.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • \Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • memory/1068-2-0x0000000004E7A000-0x0000000004E7B000-memory.dmp

    Filesize

    4KB

  • memory/1068-3-0x0000000005130000-0x0000000005141000-memory.dmp

    Filesize

    68KB

  • memory/1652-4-0x000007FEF7E60000-0x000007FEF80DA000-memory.dmp

    Filesize

    2.5MB

  • memory/2000-6-0x0000000000000000-mapping.dmp

  • memory/2000-8-0x00000000051DA000-0x00000000051DB000-memory.dmp

    Filesize

    4KB

  • memory/2000-9-0x00000000054A0000-0x00000000054B1000-memory.dmp

    Filesize

    68KB

  • memory/2000-10-0x00000000068A0000-0x00000000068B1000-memory.dmp

    Filesize

    68KB

  • memory/2000-11-0x0000000074750000-0x0000000074E3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2000-12-0x0000000005460000-0x0000000005484000-memory.dmp

    Filesize

    144KB

  • memory/2000-13-0x0000000006A60000-0x0000000006A82000-memory.dmp

    Filesize

    136KB