Analysis

  • max time kernel
    94s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2025, 01:00

General

  • Target

    rBANKSLIP_TTCOPY70997011-2-18-2024_pdf.exe

  • Size

    664KB

  • MD5

    b8f3253be81ad12d8fa2fdb5c5b158ac

  • SHA1

    c2f0a6659f0ea8d2a1be43dced1a792717b22cec

  • SHA256

    689cf9d72781c2f6088289d743356a993459f11cd22a01446f3a065a1cc8b7b5

  • SHA512

    2312f670ed0e9e4a8c676b4dcaea2ec0e7c7bf66fc372f2add2080ee266987f0096cb955b73756032bc79196c611d90fc93231037bd1e4d0a28cc86ef42c5353

  • SSDEEP

    12288:ZfZ6QaYTUyLtbjIJOC4HU4H9Sd4JzDEvJRVsTUBgD+1AFneLtHXbai1P4dX1:ZIdIt3IkaCSmzDg2UBgD+gneLtWiR4P

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 42 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
  • 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 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rBANKSLIP_TTCOPY70997011-2-18-2024_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\rBANKSLIP_TTCOPY70997011-2-18-2024_pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\rBANKSLIP_TTCOPY70997011-2-18-2024_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\rBANKSLIP_TTCOPY70997011-2-18-2024_pdf.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:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\inddatafunktions.ini

    Filesize

    37B

    MD5

    4fbe761fb296431fa2b2b2f1b2151773

    SHA1

    22b08baab25ba9367620747f559b8a9900d39f5e

    SHA256

    4e71a5b2c04ec9db74bb59e1ee2caa7a68d4a393f81ab3bac48226919fa35a5b

    SHA512

    822b45bc5c8745af9fb4abe43bc4ae74bf06cc24c8d9760cd0c619f5b5805a9cf46f1b1e0d1d082130573cc72c6f060232f117ac9e1544a84083fad197316a80

  • C:\Users\Admin\AppData\Local\Temp\nsmE427.tmp\System.dll

    Filesize

    11KB

    MD5

    75ed96254fbf894e42058062b4b4f0d1

    SHA1

    996503f1383b49021eb3427bc28d13b5bbd11977

    SHA256

    a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

    SHA512

    58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

  • memory/2748-33-0x00000000016F0000-0x0000000007642000-memory.dmp

    Filesize

    95.3MB

  • memory/2748-34-0x0000000077388000-0x0000000077389000-memory.dmp

    Filesize

    4KB

  • memory/2748-35-0x00000000773A5000-0x00000000773A6000-memory.dmp

    Filesize

    4KB

  • memory/2748-47-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/2748-51-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/2748-52-0x0000000077301000-0x0000000077421000-memory.dmp

    Filesize

    1.1MB

  • memory/2748-54-0x00000000721FE000-0x00000000721FF000-memory.dmp

    Filesize

    4KB

  • memory/2748-55-0x0000000000490000-0x00000000004F0000-memory.dmp

    Filesize

    384KB

  • memory/2748-56-0x0000000077301000-0x0000000077421000-memory.dmp

    Filesize

    1.1MB

  • memory/2748-57-0x000000003A4C0000-0x000000003A556000-memory.dmp

    Filesize

    600KB

  • memory/2748-58-0x00000000721F0000-0x00000000729A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2748-76-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-88-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-118-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-116-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-114-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-112-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-108-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-106-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-104-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-102-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-101-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-98-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-96-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-94-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-90-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-87-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-84-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-82-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-80-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-78-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-74-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-70-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-68-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-66-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-64-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-62-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-60-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-110-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-92-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-72-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-59-0x000000003A4C0000-0x000000003A551000-memory.dmp

    Filesize

    580KB

  • memory/2748-2123-0x0000000037C70000-0x0000000037C9C000-memory.dmp

    Filesize

    176KB

  • memory/2748-2124-0x0000000038170000-0x00000000381BC000-memory.dmp

    Filesize

    304KB

  • memory/2748-2126-0x000000003A760000-0x000000003A840000-memory.dmp

    Filesize

    896KB

  • memory/2748-4249-0x00000000721FE000-0x00000000721FF000-memory.dmp

    Filesize

    4KB

  • memory/2748-5043-0x00000000721F0000-0x00000000729A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2748-5153-0x000000003A910000-0x000000003A976000-memory.dmp

    Filesize

    408KB

  • memory/2748-5154-0x000000003AC60000-0x000000003B204000-memory.dmp

    Filesize

    5.6MB

  • memory/2748-5155-0x000000003A9C0000-0x000000003AA52000-memory.dmp

    Filesize

    584KB

  • memory/2748-5156-0x000000003B5B0000-0x000000003B5C2000-memory.dmp

    Filesize

    72KB

  • memory/2748-5157-0x000000003B5F0000-0x000000003B640000-memory.dmp

    Filesize

    320KB

  • memory/2748-5159-0x00000000721F0000-0x00000000729A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2748-5162-0x00000000721F0000-0x00000000729A0000-memory.dmp

    Filesize

    7.7MB

  • memory/5064-30-0x0000000077301000-0x0000000077421000-memory.dmp

    Filesize

    1.1MB

  • memory/5064-31-0x0000000077301000-0x0000000077421000-memory.dmp

    Filesize

    1.1MB

  • memory/5064-32-0x00000000747D4000-0x00000000747D5000-memory.dmp

    Filesize

    4KB