Analysis

  • max time kernel
    146s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 15:31

General

  • Target

    Bank Swift and SOA PRN0072700314159453_pdf.exe

  • Size

    990KB

  • MD5

    38499dde4bd6169ef983fc23eebc2642

  • SHA1

    80c78c8f8b498528b4aae2b569a5656b17d98993

  • SHA256

    6f45bd0535f4654ea024f6336cdeecbc44272c903353963a7d7a0f8d8e74a51e

  • SHA512

    ac9f03ce93401afc992fdfa7cf06a949539ed96abd8d0844b8a1c7acbc43c70e1976c3762d755ef8b69b67440c7b256b82a8f117723e07401e3e84efb61ce346

  • SSDEEP

    24576:9jwKCN1tSd7mEf4nPTlLUIJ2IAdQquWVbs2XpvAv:V1C3ocEMrl+IQQq5xs2Cv

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Disables Task Manager via registry modification
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Swift and SOA PRN0072700314159453_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Swift and SOA PRN0072700314159453_pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:692
    • C:\Users\Admin\AppData\Local\Temp\Bank Swift and SOA PRN0072700314159453_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank Swift and SOA PRN0072700314159453_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsn7FD1.tmp\System.dll

    Filesize

    12KB

    MD5

    0d7ad4f45dc6f5aa87f606d0331c6901

    SHA1

    48df0911f0484cbe2a8cdd5362140b63c41ee457

    SHA256

    3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    SHA512

    c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

  • memory/692-13-0x0000000003260000-0x00000000047CA000-memory.dmp

    Filesize

    21.4MB

  • memory/692-14-0x0000000077961000-0x0000000077A81000-memory.dmp

    Filesize

    1.1MB

  • memory/692-15-0x0000000074655000-0x0000000074656000-memory.dmp

    Filesize

    4KB

  • memory/692-16-0x0000000003260000-0x00000000047CA000-memory.dmp

    Filesize

    21.4MB

  • memory/2144-17-0x00000000016E0000-0x0000000002C4A000-memory.dmp

    Filesize

    21.4MB

  • memory/2144-18-0x00000000779E8000-0x00000000779E9000-memory.dmp

    Filesize

    4KB

  • memory/2144-19-0x0000000077A05000-0x0000000077A06000-memory.dmp

    Filesize

    4KB

  • memory/2144-32-0x00000000016E0000-0x0000000002C4A000-memory.dmp

    Filesize

    21.4MB

  • memory/2144-33-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/2144-35-0x0000000000480000-0x000000000049E000-memory.dmp

    Filesize

    120KB

  • memory/2144-36-0x00000000359E0000-0x0000000035F84000-memory.dmp

    Filesize

    5.6MB

  • memory/2144-37-0x0000000035890000-0x000000003592C000-memory.dmp

    Filesize

    624KB

  • memory/2144-38-0x0000000036360000-0x00000000363F2000-memory.dmp

    Filesize

    584KB

  • memory/2144-39-0x00000000360E0000-0x0000000036130000-memory.dmp

    Filesize

    320KB

  • memory/2144-40-0x0000000077961000-0x0000000077A81000-memory.dmp

    Filesize

    1.1MB

  • memory/2144-41-0x0000000036520000-0x00000000366E2000-memory.dmp

    Filesize

    1.8MB

  • memory/2144-42-0x00000000367B0000-0x00000000367BA000-memory.dmp

    Filesize

    40KB