Overview

overview

10

task1

 

10

task2

 

10

Analysis

  • max time kernel
    146s
  • max time network
    150s
  • resource
    win10v191014

Sharing

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General

  • Target

    1bbbae729c33ea1ff7f99ddca6317e05a4242d63

  • Sample

    191018-jyewsk7k72

  • SHA256

    e39e7b370667db88b6fd90410873a312599e750e66708cab60e681e61b9c5c24

Score
N/A

Malware Config

Extracted

Family

ursnif

Botnet

500

C2

http://myhomesitter.fun

Attributes
  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    1.320669898e+09

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • dns_servers

    107.174.86.134

    107.175.127.22

rsa_pubkey.base64
serpent.plain

Signatures

  • ursnif family
    family
  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
    adwarespyware
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Drops file in system dir 5 IoCs
  • Checks system information in the registry (likely anti-VM) 2 TTPs 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
    evasiontrojan
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Modifies service 2 TTPs 1 IoCs
    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\1bbbae729c33ea1ff7f99ddca6317e05a4242d63.exe
    "C:\Users\Admin\AppData\Local\Temp\1bbbae729c33ea1ff7f99ddca6317e05a4242d63.exe"
    1⤵
      PID:4876
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of FindShellTrayWindow
      PID:5052
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5052 CREDAT:82945 /prefetch:2
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:5100
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of FindShellTrayWindow
      PID:2952
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2952 CREDAT:82945 /prefetch:2
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:4136
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Drops file in system dir
      • Modifies service
      PID:4548
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
      1⤵
        PID:4620
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DoSvc
        1⤵
        • Checks system information in the registry (likely anti-VM)
        PID:3788
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        PID:3924
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3924 CREDAT:82945 /prefetch:2
        1⤵
        • Suspicious use of SetWindowsHookEx
        PID:4116
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k unistacksvcgroup
        1⤵
          PID:3952
        • \??\c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s wscsvc
          1⤵
          • Windows security modification
          PID:3644
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of FindShellTrayWindow
          PID:936
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:936 CREDAT:82945 /prefetch:2
          1⤵
          • Suspicious use of SetWindowsHookEx
          PID:1292
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of FindShellTrayWindow
          PID:420
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:420 CREDAT:82945 /prefetch:2
          1⤵
          • Suspicious use of SetWindowsHookEx
          PID:1980

        Network

        MITRE ATT&CK Enterprise v15

        MITRE ATT&CK Additional techniques

        • T1089
        • T1031

        Replay Monitor

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        Downloads

        • memory/4876-0-0x0000000002BB1000-0x0000000002BC7000-memory.dmp

          Filesize

          88KB

          Download

        • memory/4876-1-0x0000000004720000-0x0000000004721000-memory.dmp

          Filesize

          4KB

          Download

        • memory/4876-2-0x0000000002980000-0x000000000298F000-memory.dmp

          Filesize

          60KB

          Download