Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2025, 02:56

General

  • Target

    Payment Confirmation for Invoice 2025INV149.exe

  • Size

    1.1MB

  • MD5

    498fa48c532298d0b66573d5027bb134

  • SHA1

    d1987503ad04b7f9d102328ac407a261f297d226

  • SHA256

    b1af6dc34bba3755b225d8f9dd732df86267dce73241c7aa65fdec1282251554

  • SHA512

    ecc19e7a5334107c7913a2b9df93fcad4cc08c8067de3074827e9c78795961b6393c3fb2c8521b3e626ae155a31a4ea8539ec08bd091674d8e3c684451997bbd

  • SSDEEP

    24576:MjEmMWRNc7WxEgr1GsflpiWFsjq5c3SddFDykNTwdQG9ikZ:jmjRNQgEg5GsNpi4l5kSdzDPwZim

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 35 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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: 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\Payment Confirmation for Invoice 2025INV149.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation for Invoice 2025INV149.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation for Invoice 2025INV149.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation for Invoice 2025INV149.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsoED3D.tmp\System.dll

    Filesize

    11KB

    MD5

    ee260c45e97b62a5e42f17460d406068

    SHA1

    df35f6300a03c4d3d3bd69752574426296b78695

    SHA256

    e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

    SHA512

    a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

  • memory/2012-82-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-84-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-31-0x00000000014F0000-0x0000000006AEB000-memory.dmp

    Filesize

    86.0MB

  • memory/2012-32-0x00000000776E0000-0x0000000077889000-memory.dmp

    Filesize

    1.7MB

  • memory/2012-51-0x0000000000480000-0x00000000014E2000-memory.dmp

    Filesize

    16.4MB

  • memory/2012-55-0x0000000000480000-0x00000000014E2000-memory.dmp

    Filesize

    16.4MB

  • memory/2012-56-0x00000000014F0000-0x0000000006AEB000-memory.dmp

    Filesize

    86.0MB

  • memory/2012-57-0x0000000000480000-0x00000000004E0000-memory.dmp

    Filesize

    384KB

  • memory/2012-58-0x00000000377D0000-0x0000000037868000-memory.dmp

    Filesize

    608KB

  • memory/2012-59-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-60-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-62-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-64-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-78-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-66-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-68-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-70-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-2125-0x00000000368A0000-0x0000000036980000-memory.dmp

    Filesize

    896KB

  • memory/2012-74-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-76-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-2123-0x0000000037440000-0x000000003746C000-memory.dmp

    Filesize

    176KB

  • memory/2012-80-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-72-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-86-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-88-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-90-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-92-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-94-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-96-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-98-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-100-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-102-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-104-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-106-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-108-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-110-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-112-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-114-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-116-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-118-0x00000000377D0000-0x0000000037862000-memory.dmp

    Filesize

    584KB

  • memory/2012-2124-0x0000000039CD0000-0x0000000039D1C000-memory.dmp

    Filesize

    304KB

  • memory/2708-30-0x00000000776E0000-0x0000000077889000-memory.dmp

    Filesize

    1.7MB

  • memory/2708-29-0x00000000776E1000-0x00000000777E2000-memory.dmp

    Filesize

    1.0MB