Analysis

  • max time kernel
    155s
  • max time network
    56s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    06-03-2023 23:28

General

  • Target

    Setup.exe

  • Size

    793.8MB

  • MD5

    9a851a47a9bd2f92c61d2486d1be3064

  • SHA1

    3cda31c06db97246705d95dfcf4908eafb514b87

  • SHA256

    7c2b51c31a895f2eeb6afe748f11d0f6a16355b01c41f22749043c0da7804206

  • SHA512

    90340910dc1ee90ccfe7f451578de67c5ca32b95525157acd8b5bc2e99b9c0b2254bfb58997cc848a0ead871bc3f1e03dbb152d56aa709c4ecd3742404eec27b

  • SSDEEP

    196608:6spHQk/ICYcdYtOQYMvm6Iu+8RuJQHIsuRuJyPquRuJXMD349nt3njto03qJbYav:6csCYgIBH2XD349nt3nW03s8up

Malware Config

Extracted

Family

fickerstealer

C2

45.93.201.181:80

91.240.118.51:253

Signatures

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Blocks application from running via registry modification 3 IoCs

    Adds application to list of disallowed applications.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Users\Admin\AppData\Local\Temp\Setup.exe
      "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
      2⤵
      • Blocks application from running via registry modification
      • Suspicious use of WriteProcessMemory
      PID:3944
      • C:\Users\Admin\AppData\Local\Temp\1678149144959.exe
        "C:\Users\Admin\AppData\Local\Temp\1678149144959.exe"
        3⤵
        • Executes dropped EXE
        PID:2760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 264
          4⤵
          • Program crash
          PID:1088
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2480
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:784

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6RO0PN6W\LZTI5EVF.txt

      Filesize

      12B

      MD5

      71d587e911373f62d72a158eceb6e0e7

      SHA1

      68d81a1a4fb19c609288a94f10d1bbb92d972a68

      SHA256

      acce61361a3dee677653fa2909f29530202335835c71031ba4dff50682ae5de8

      SHA512

      a0010c487c8b1eeae82ae82896bf5f48b7ec5573197bbe149b6803093a32b3b470ef0b122278e404cd5df296376bb0629438609997d52c14757ff1c3e6756060

    • C:\Users\Admin\AppData\Local\Temp\1678149144959.exe

      Filesize

      1.9MB

      MD5

      36279007f90425caff1cb216971a1d14

      SHA1

      9dac3a30c67ff986e93d6f1181d5d814b39a6c30

      SHA256

      b8b3733f532eb89f383115fc7e183dd0fdf24026fbf2e98ea95f0beaf0e57798

      SHA512

      84ad90ca8b3079ddb1be283d98c66df26c00c5a43fad6b7fd658b55b4207a0f8b2d6945469bc6ed4ee158b7512b5fa65700aa9ed6bc51d59103ebfe4ecbe0a7a

    • C:\Users\Admin\AppData\Local\Temp\1678149144959.exe

      Filesize

      1.9MB

      MD5

      36279007f90425caff1cb216971a1d14

      SHA1

      9dac3a30c67ff986e93d6f1181d5d814b39a6c30

      SHA256

      b8b3733f532eb89f383115fc7e183dd0fdf24026fbf2e98ea95f0beaf0e57798

      SHA512

      84ad90ca8b3079ddb1be283d98c66df26c00c5a43fad6b7fd658b55b4207a0f8b2d6945469bc6ed4ee158b7512b5fa65700aa9ed6bc51d59103ebfe4ecbe0a7a

    • memory/2760-140-0x0000000002980000-0x0000000002AD6000-memory.dmp

      Filesize

      1.3MB

    • memory/2760-139-0x0000000000850000-0x0000000000851000-memory.dmp

      Filesize

      4KB

    • memory/2760-146-0x0000000000400000-0x00000000005E4000-memory.dmp

      Filesize

      1.9MB

    • memory/3464-126-0x0000000033950000-0x0000000033ADE000-memory.dmp

      Filesize

      1.6MB

    • memory/3464-121-0x0000000000400000-0x0000000001400000-memory.dmp

      Filesize

      16.0MB

    • memory/3464-141-0x0000000033950000-0x0000000033ADE000-memory.dmp

      Filesize

      1.6MB

    • memory/3464-125-0x0000000031E20000-0x0000000031E9B000-memory.dmp

      Filesize

      492KB

    • memory/3944-129-0x00000000001C0000-0x00000000001C1000-memory.dmp

      Filesize

      4KB

    • memory/3944-123-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/3944-122-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/3944-124-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/3944-142-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/3944-145-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/3944-128-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB