Analysis

  • max time kernel
    147s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 09:10

General

  • Target

    30c3067f523ed3123a9fa0c1ee4d209d5cd5770d0c1607e192d03455cc04a47d.exe

  • Size

    9.1MB

  • MD5

    1d210391c6bc1cd255b5e426bdf2c98c

  • SHA1

    9c66ec96462385bfdf4a53269a771e58e9c32251

  • SHA256

    30c3067f523ed3123a9fa0c1ee4d209d5cd5770d0c1607e192d03455cc04a47d

  • SHA512

    0ad95eddea508abb1858c30483047e4dcfc045b55946e067d1f29a8c45ec7769cd255773a36906800b0cd3df51fefc229830917df9acef6fd0f7befcb2779e67

  • SSDEEP

    196608:wbsJGqjBpDyHl+rFeyaxJrbvAFTKlOcnIq/GxApza7Wl0WWy/wa2X3iow29UclX3:wbgjBFyl+rg/bkt0nBGe07Wsiow29UcR

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30c3067f523ed3123a9fa0c1ee4d209d5cd5770d0c1607e192d03455cc04a47d.exe
    "C:\Users\Admin\AppData\Local\Temp\30c3067f523ed3123a9fa0c1ee4d209d5cd5770d0c1607e192d03455cc04a47d.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\AppData\Roaming\Downloader\aria2c.exe
      "C:\Users\Admin\AppData\Roaming\Downloader\aria2c.exe" --conf-path="C:\Users\Admin\AppData\Roaming\Downloader\aria2.conf" #--save-session="C:\Users\Admin\AppData\Roaming\Downloader\aria2.session" --input-file="C:\Users\Admin\AppData\Roaming\Downloader\aria2.session" --rpc-listen-port=6288 --listen-port=6388 --dht-listen-port=6390 --enable-rpc=true --rpc-allow-origin-all=true --disable-ipv6=false --rpc-secret=123 --enable-dht=true --enable-dht6=true --dht-file-path="C:\Users\Admin\AppData\Roaming\Downloader\dht.dat" --dht-file-path6="C:\Users\Admin\AppData\Roaming\Downloader\dht6.dat" --bt-external-ip= --stop-with-process=3600
      2⤵
      • Executes dropped EXE
      PID:1028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Downloader\aria2.conf

    Filesize

    55KB

    MD5

    be2848313251cc4bdc3f4d83fbb678ee

    SHA1

    1e43738b25f0abcb6288e12b7e8d01b3e8666e8a

    SHA256

    35a633ec422857ce9d27f0e6b948d8b871af90c0430754bdd3f7ca70970e866d

    SHA512

    7093a99574544973a2c4ea9abebeefdb8b463bb42514a5d06dc29bff6cdd34381f10e394f79a8a5af1b27b86b5a31a71a48e569a2c76a20d4f982a5df61b3932

  • C:\Users\Admin\AppData\Roaming\Downloader\aria2c.exe

    Filesize

    4.8MB

    MD5

    a5c047f169471bd325552c255d6c04af

    SHA1

    e313cff2f3d668ec5d0e90920bd622b0f38aed9d

    SHA256

    cec8bb942475690363c1558fdf55e3cf59f29607967a822a626d4976a348334a

    SHA512

    6cf929d36ea0c95815d3218a3b11f0c8f539a6113c368642a70d41379145ba7ace9aed1e5b78836a4cd2ca861d9bcd10fea3e7fc126adb85822ed4cf4f762f0d

  • C:\Users\Admin\AppData\Roaming\Downloader\libcurl.dll

    Filesize

    1.7MB

    MD5

    c827add774456c759d2a7b35a2ae3525

    SHA1

    e6817d1b5c62460bdfd4aa3cd3941a6e7ecdc533

    SHA256

    5eb7c4723acab028d8bfea807cae6dad1f38d2c21b11586d77a69a716fbc4f2a

    SHA512

    5febaf93c07eb86b2dd9a228fe18e55ba57183d7300c07da802ddf7d381c3138e20601386744e92caed15e183fa793969ce47fa799e9f124c3f09e0b2c1da22d

  • memory/1028-32-0x0000000000400000-0x00000000008CE000-memory.dmp

    Filesize

    4.8MB

  • memory/3600-10-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-9-0x00000000773B0000-0x00000000773B1000-memory.dmp

    Filesize

    4KB

  • memory/3600-12-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-19-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-18-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-17-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-8-0x0000000002E40000-0x0000000002E5A000-memory.dmp

    Filesize

    104KB

  • memory/3600-11-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-0-0x0000000000400000-0x0000000000F71000-memory.dmp

    Filesize

    11.4MB

  • memory/3600-13-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-5-0x0000000002EC0000-0x0000000002F7E000-memory.dmp

    Filesize

    760KB

  • memory/3600-31-0x0000000000400000-0x0000000000F71000-memory.dmp

    Filesize

    11.4MB

  • memory/3600-2-0x0000000010000000-0x0000000010116000-memory.dmp

    Filesize

    1.1MB

  • memory/3600-34-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-37-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-36-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-35-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-38-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-39-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB

  • memory/3600-40-0x0000000077390000-0x0000000077480000-memory.dmp

    Filesize

    960KB