Analysis

  • max time kernel
    147s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2024, 19:34

General

  • Target

    d4ec9f854ef9d310d0f09fc5553a02d5a3d90ce80b886cb8b8f417231db9253c.exe

  • Size

    13.1MB

  • MD5

    dd2f704ac1941412de7d11fb65db4b31

  • SHA1

    08b4ae480f7d3db703b47115d6b984633b0fc2b9

  • SHA256

    d4ec9f854ef9d310d0f09fc5553a02d5a3d90ce80b886cb8b8f417231db9253c

  • SHA512

    935b8c11977a4a417d7da56cff3f90f580f0fe58d916c8da7a3d5eeb48311bb086fef772ec4cffecf8526c5e6f085611bbbc982fc8b0af874a629bc18021b7bf

  • SSDEEP

    196608:xklTueLqKk6Cf30B0epeRFeaXttXkKCBOv4ViND9l2cfwTgENsB4kg3FCRtYZyIl:xUOwSVdtLvrND9ljPiaJg1CRtYZC/e

Malware Config

Signatures

  • Blackmoon, KrBanker

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

  • Detect Blackmoon payload 14 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 20 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4ec9f854ef9d310d0f09fc5553a02d5a3d90ce80b886cb8b8f417231db9253c.exe
    "C:\Users\Admin\AppData\Local\Temp\d4ec9f854ef9d310d0f09fc5553a02d5a3d90ce80b886cb8b8f417231db9253c.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2064
    • 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=2064 --check-certificate=false
      2⤵
      • Executes dropped EXE
      PID:2780

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        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\log.txt

          Filesize

          320B

          MD5

          0677d0892011116d65c1eca60e069c25

          SHA1

          a45ad3bb3ae6496bcd49e9a5c4e2e4729a23adeb

          SHA256

          a4e8495f21a02a596d52531ad25291d952dd06439923ee3ee68658f5c0951a4d

          SHA512

          89b948f942789be2ac32220d4ec268ed84edc17d7dc02fd422b347f4bde1b8b6b45010e98250e58a44203794d4ecc54cb6fed0cb6f160880febe78dbff160543

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

          Filesize

          4.8MB

          MD5

          a5c047f169471bd325552c255d6c04af

          SHA1

          e313cff2f3d668ec5d0e90920bd622b0f38aed9d

          SHA256

          cec8bb942475690363c1558fdf55e3cf59f29607967a822a626d4976a348334a

          SHA512

          6cf929d36ea0c95815d3218a3b11f0c8f539a6113c368642a70d41379145ba7ace9aed1e5b78836a4cd2ca861d9bcd10fea3e7fc126adb85822ed4cf4f762f0d

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

          Filesize

          1.7MB

          MD5

          c827add774456c759d2a7b35a2ae3525

          SHA1

          e6817d1b5c62460bdfd4aa3cd3941a6e7ecdc533

          SHA256

          5eb7c4723acab028d8bfea807cae6dad1f38d2c21b11586d77a69a716fbc4f2a

          SHA512

          5febaf93c07eb86b2dd9a228fe18e55ba57183d7300c07da802ddf7d381c3138e20601386744e92caed15e183fa793969ce47fa799e9f124c3f09e0b2c1da22d

        • memory/2064-16-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-7-0x0000000004140000-0x00000000041FE000-memory.dmp

          Filesize

          760KB

        • memory/2064-11-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-8-0x00000000003C0000-0x00000000003DA000-memory.dmp

          Filesize

          104KB

        • memory/2064-14-0x00000000049B0000-0x0000000004AC0000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-15-0x00000000003E0000-0x00000000003FA000-memory.dmp

          Filesize

          104KB

        • memory/2064-0-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-18-0x0000000004140000-0x00000000041FE000-memory.dmp

          Filesize

          760KB

        • memory/2064-17-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-21-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-20-0x0000000001D80000-0x0000000001D9A000-memory.dmp

          Filesize

          104KB

        • memory/2064-19-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-22-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-23-0x0000000001EB0000-0x0000000001EB1000-memory.dmp

          Filesize

          4KB

        • memory/2064-24-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

          Filesize

          4KB

        • memory/2064-6-0x00000000042E0000-0x0000000004881000-memory.dmp

          Filesize

          5.6MB

        • memory/2064-1-0x0000000010000000-0x0000000010116000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-5-0x00000000042E0000-0x0000000004881000-memory.dmp

          Filesize

          5.6MB

        • memory/2064-74-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-56-0x00000000042E0000-0x0000000004881000-memory.dmp

          Filesize

          5.6MB

        • memory/2064-58-0x0000000073990000-0x0000000073A81000-memory.dmp

          Filesize

          964KB

        • memory/2064-62-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-88-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-65-0x0000000073990000-0x0000000073A81000-memory.dmp

          Filesize

          964KB

        • memory/2064-66-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-68-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-70-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-72-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-57-0x0000000076BF0000-0x0000000076D00000-memory.dmp

          Filesize

          1.1MB

        • memory/2064-76-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-78-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-80-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-82-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-84-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2064-86-0x0000000000400000-0x0000000001D7E000-memory.dmp

          Filesize

          25.5MB

        • memory/2780-64-0x0000000000400000-0x00000000008CE000-memory.dmp

          Filesize

          4.8MB