Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 12:22

General

  • Target

    8c6d3bf3629975fccadbd21d3396879ea8bee6fd21b086d329f51b2cb2f71918.exe

  • Size

    13.6MB

  • MD5

    a46ad13e35167f886a624e60c897aeba

  • SHA1

    5b5139619b9d22ef17467ebb7d22ab7b0ce346cd

  • SHA256

    8c6d3bf3629975fccadbd21d3396879ea8bee6fd21b086d329f51b2cb2f71918

  • SHA512

    3133d632bf7cf10a33b07c2f947b99859c9c67e24174c752791a25f95b287420397d4c7d01c0d86c988b05fe98b7fb43dd4c2a78a292e23a04d818c6512354cb

  • SSDEEP

    393216:8u1L+YuY+Yiu1L+YuY+Ywu1L+YuY+Yiu1L+YuY+Yj:X

Malware Config

Signatures

  • Blackmoon family
  • Blackmoon, KrBanker

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

  • Detect Blackmoon payload 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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.

  • Modifies data under HKEY_USERS 24 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c6d3bf3629975fccadbd21d3396879ea8bee6fd21b086d329f51b2cb2f71918.exe
    "C:\Users\Admin\AppData\Local\Temp\8c6d3bf3629975fccadbd21d3396879ea8bee6fd21b086d329f51b2cb2f71918.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ping 127.0.0.1 -n 5 & Start c:\windows\fonts\apdhevz\byraqci.exe
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:288
      • 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:2448
      • \??\c:\windows\fonts\apdhevz\byraqci.exe
        c:\windows\fonts\apdhevz\byraqci.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2136
  • \??\c:\windows\fonts\apdhevz\byraqci.exe
    c:\windows\fonts\apdhevz\byraqci.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 664
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\Fonts\apdhevz\byraqci.exe

    Filesize

    13.6MB

    MD5

    4a79be736bd1a2b207390fa5b7689761

    SHA1

    e3ce94118ae2e51cbd3edbd1ad3da527f6d48ff7

    SHA256

    dcf46068838ae793fd7c076696c05a252a14fb3611413a0bee660681cfdbca3c

    SHA512

    1a73330be183c082d4d74c10e193b0c60118d91fccfb9485c1a4cdd9ef5215c3abc306df5c31cc55f025eb73c874c43c864e474bdcbdb2431b11f7a6a86f4a7f

  • memory/1956-0-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1956-4-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/2136-9-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB