Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 17:22

General

  • Target

    DHL INVOICE#-002834.exe

  • Size

    306KB

  • MD5

    9564349d362fe854594e13217800ea9f

  • SHA1

    5067b33410d6a859f96e07d7fa006446b5e3abdb

  • SHA256

    4aba8fe16a25f04df115b34a57b6fff9782664c208348cf57d921d12f158c8b1

  • SHA512

    d919fbc75fd973ddd8e425b728d3ab7c251b5671493517d4eb8e825f6b26a4b5f36d70468b171a336bafcc6c8eaf9deea3c31af7ba26b9ba1aee9649b0b5a1ca

  • SSDEEP

    6144:NBn0JAr0W067hhLsgQfQIRHWGdEzFgu+sdIEOZz9Kgzl:EerA67sF9Hj2RzEkql

Malware Config

Extracted

Family

formbook

Campaign

codp

Decoy

WLwbp9IgDF0DRbuq

oNQ7DHBzVHVMTxxxFCORk65Z5w==

eKyDm2P0S8i8tXrGSRxyN/GB+g==

DWLDupksnDvfKi7Q7PI=

JAaYbOFx1G0f4pcM36gDB3YaG796

KWQ71Z4U7+2Nv8K72OXED5M9oe8=

YJpvEHW5TU/wL02R9TiN0A==

tpQX78fPprFMi7ocSgXfUNYKpTq33Icp

a9Z0eju3FKFA/YBy+MQfG3QaG796

uQzt58fSssDUenxacQCY2g==

vijGzYPYOfi2gxZLhlbA

kZfzlQg7IGPxc29BJA==

dcQu+blQlxGyZu7qw5P4L6s=

TTIXAcXMr85yqqvxWBMqdrw=

xZb/tyGC8sOjIS7Q7PI=

KnzenvO+cXkVS3biKfRDwJ9Q5Q==

ZqZvDt9+yYxqh1Si

vZD8CtVZigY/cqnmLA==

QJy2dd/p0MO1Ji7Q7PI=

l+Hmoea3jsiAcqnmLA==

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 54 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Users\Admin\AppData\Local\Temp\DHL INVOICE#-002834.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL INVOICE#-002834.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe
        "C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe" C:\Users\Admin\AppData\Local\Temp\xlpgzp.d
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4232
        • C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe
          "C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe"
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:3504
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4948
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:3612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\lfpawsddp.vnb
      Filesize

      185KB

      MD5

      63197a586b382ba5464003f7275236e6

      SHA1

      f2073ba4af95098e71bbb384383a227aecce8f35

      SHA256

      d411c5620287a19b2e4c41e7e1ae4e459199feb864c292304e21be73ea9029e6

      SHA512

      ab02ec855769551f784a7ee6287519648e0302cd0b1ddb3135bf5c635231d175aa7fa97d8cd27045bb2408c438150375498eea25a43104e0c6458a0adff44eb0

    • C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe
      Filesize

      98KB

      MD5

      5a5ff44ad9dbf2ad128e94d9f2cd5932

      SHA1

      6b0a95040616a32343d812ddd5398b0139c6a5e8

      SHA256

      38ac98c631349cc33767e9e04a2c8be4d1126ccec77735b7e285ecd53d44a90f

      SHA512

      029ba785a6598c599933719883390d11b1e598367d1eed256a9b8b66da83fbe5ee38ec5a29cab53f2a103f626f48bbb3e896071efac7f127363def8f699382d4

    • C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe
      Filesize

      98KB

      MD5

      5a5ff44ad9dbf2ad128e94d9f2cd5932

      SHA1

      6b0a95040616a32343d812ddd5398b0139c6a5e8

      SHA256

      38ac98c631349cc33767e9e04a2c8be4d1126ccec77735b7e285ecd53d44a90f

      SHA512

      029ba785a6598c599933719883390d11b1e598367d1eed256a9b8b66da83fbe5ee38ec5a29cab53f2a103f626f48bbb3e896071efac7f127363def8f699382d4

    • C:\Users\Admin\AppData\Local\Temp\nwbaihgld.exe
      Filesize

      98KB

      MD5

      5a5ff44ad9dbf2ad128e94d9f2cd5932

      SHA1

      6b0a95040616a32343d812ddd5398b0139c6a5e8

      SHA256

      38ac98c631349cc33767e9e04a2c8be4d1126ccec77735b7e285ecd53d44a90f

      SHA512

      029ba785a6598c599933719883390d11b1e598367d1eed256a9b8b66da83fbe5ee38ec5a29cab53f2a103f626f48bbb3e896071efac7f127363def8f699382d4

    • C:\Users\Admin\AppData\Local\Temp\xlpgzp.d
      Filesize

      5KB

      MD5

      d18c95ac432c99f8258833f63a5d2596

      SHA1

      68b4b9a95a574b05100c693b6f5a74ab2fd24351

      SHA256

      7a756c0994c7bd8ee13469088db0facaf20dac4b8ac46ad891cc9429af0c10c6

      SHA512

      23e49e410c676d8de243c90eed7e8ce97fa15a0ad617dc5cd3dd89e7492d28cd565dbdbbd367f428d85a0c4efb3ed28130ea1ae1d3e224cb9af42b0fbda992ac

    • memory/3044-143-0x00000000080B0000-0x0000000008166000-memory.dmp
      Filesize

      728KB

    • memory/3044-152-0x0000000008170000-0x00000000082BC000-memory.dmp
      Filesize

      1.3MB

    • memory/3044-150-0x0000000008170000-0x00000000082BC000-memory.dmp
      Filesize

      1.3MB

    • memory/3044-148-0x00000000080B0000-0x0000000008166000-memory.dmp
      Filesize

      728KB

    • memory/3504-137-0x0000000000000000-mapping.dmp
    • memory/3504-141-0x0000000001950000-0x0000000001C9A000-memory.dmp
      Filesize

      3.3MB

    • memory/3504-142-0x0000000001610000-0x0000000001620000-memory.dmp
      Filesize

      64KB

    • memory/3504-140-0x0000000000401000-0x000000000042F000-memory.dmp
      Filesize

      184KB

    • memory/3504-139-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4232-132-0x0000000000000000-mapping.dmp
    • memory/4948-144-0x0000000000000000-mapping.dmp
    • memory/4948-145-0x0000000000280000-0x0000000000292000-memory.dmp
      Filesize

      72KB

    • memory/4948-146-0x0000000000110000-0x000000000013D000-memory.dmp
      Filesize

      180KB

    • memory/4948-147-0x00000000021C0000-0x000000000250A000-memory.dmp
      Filesize

      3.3MB

    • memory/4948-149-0x0000000002050000-0x00000000020DF000-memory.dmp
      Filesize

      572KB

    • memory/4948-151-0x0000000000110000-0x000000000013D000-memory.dmp
      Filesize

      180KB