Analysis

  • max time kernel
    49s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/12/2024, 19:55

General

  • Target

    3399274e0046749cff555e46cf3d33437d235651cd94923e356b0d996cc53549.exe

  • Size

    10.8MB

  • MD5

    7e4bb3245fcd076f30d4a57da5b0ebf7

  • SHA1

    c72a8bd2ac956ee2a950eb165b51fd9bbcbff385

  • SHA256

    3399274e0046749cff555e46cf3d33437d235651cd94923e356b0d996cc53549

  • SHA512

    838242b4c02bf91a06d386d27db96a714692b729102d1a64825a4de62bf1614ff118806b4b39e3dc25d8d150c49fc0a140c2a6073ad7a3cf5794cb3edd2cd04b

  • SSDEEP

    196608:9EaOk2c1uwl1CPwDv3uFhi43v13uFnCPws8S/VW08Sr8lQeY3YKmknGzwHIPHd9H:95nEwl1CPwDv3uFY43v13uFnCPwa/VWH

Malware Config

Signatures

  • Blackmoon family
  • Blackmoon, KrBanker

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

  • Detect Blackmoon payload 5 IoCs
  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

  • Mimikatz family
  • mimikatz is an open source tool to dump credentials on Windows 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Unexpected DNS network traffic destination 21 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • UPX packed file 3 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 19 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • NSIS installer 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3399274e0046749cff555e46cf3d33437d235651cd94923e356b0d996cc53549.exe
    "C:\Users\Admin\AppData\Local\Temp\3399274e0046749cff555e46cf3d33437d235651cd94923e356b0d996cc53549.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ping 127.0.0.1 -n 5 & Start C:\Windows\cygmthuq\nwswlyt.exe
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2056
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 5
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1864
      • C:\Windows\cygmthuq\nwswlyt.exe
        C:\Windows\cygmthuq\nwswlyt.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2680
  • C:\Windows\cygmthuq\nwswlyt.exe
    C:\Windows\cygmthuq\nwswlyt.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\cygmthuq\vdxmmfucrsaibcd18886.exe
      C:\Windows\cygmthuq\vdxmmfucrsaibcd18886.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2856
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 161.97.219.84
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 161.97.219.84
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2884
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 163.172.168.171
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 163.172.168.171
        3⤵
        • System Location Discovery: System Language Discovery
        PID:300
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 94.103.153.176
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 94.103.153.176
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1696
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 207.192.71.13
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1444
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 207.192.71.13
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2584
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 178.63.116.152
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 178.63.116.152
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 51.77.227.84
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 51.77.227.84
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2564
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c nslookup -qt=A amxread.lib 188.226.146.136
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1568
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -qt=A amxread.lib 188.226.146.136
        3⤵
        • System Location Discovery: System Language Discovery
        PID:764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\cygmthuq\vdxmmfucrsaibcd18886.exe

    Filesize

    69KB

    MD5

    8a761ad0a469caa921b8a1bdb989b9d1

    SHA1

    4584c31d116e15f402cc17122edd304eb6c95b2e

    SHA256

    875abc09f1abc43dfcc8a9c2a5e541c9a8bcaf33a4e8faa20c58947f8c8b56fa

    SHA512

    d2e541a9a245ea883b54e06583c5db4532e042e333f633e9dc20a1fd5d8d11c46a283274bcde0f972234a63f95e518a27da50f34a1899d88a398bbeb76cb371f

  • \Windows\cygmthuq\nwswlyt.exe

    Filesize

    10.9MB

    MD5

    8e974e5dac1bd498ffbb10e8bd70f852

    SHA1

    f601b92628f557d4dccaa6ad6b4a4328acd7db4f

    SHA256

    0e3617450309f720be2ee115020e04f9399218b248d52fdb5675408d81642357

    SHA512

    87a0a04f1370435496f7c84269c7b217c83eaef562e23b6a7f1cb5cae1cd1122d286fb6f09822fef90ced5bff728d38842a949c4dbac15d2d3bf776fb19c9eba

  • memory/2304-21-0x0000000001BA0000-0x0000000001C06000-memory.dmp

    Filesize

    408KB

  • memory/2304-20-0x0000000001BA0000-0x0000000001C06000-memory.dmp

    Filesize

    408KB

  • memory/2304-26-0x0000000001BA0000-0x0000000001C06000-memory.dmp

    Filesize

    408KB

  • memory/2304-27-0x0000000001BA0000-0x0000000001C06000-memory.dmp

    Filesize

    408KB

  • memory/2548-0-0x0000000000400000-0x0000000000CEB000-memory.dmp

    Filesize

    8.9MB

  • memory/2548-4-0x0000000000400000-0x0000000000CEB000-memory.dmp

    Filesize

    8.9MB

  • memory/2680-9-0x0000000000400000-0x0000000000CEB000-memory.dmp

    Filesize

    8.9MB

  • memory/2856-23-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2856-25-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB