Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-02-2025 16:03

General

  • Target

    Payment_summaryRef_20251102e24.exe

  • Size

    626KB

  • MD5

    de1f37e70efeae0839213b6432c6265f

  • SHA1

    ec5459e719bad043c6d4f9f2a1b98c1ed1795b50

  • SHA256

    756fbf36edbac9af59cc2787aae96f78cbdda4a2707dd222912095e763f2a57f

  • SHA512

    aaa48d0abf37f0bf35a8c1a224f923f3dfac5656172906dcd2a6bd396afb50e7fdd67fd3c3a34f9eb4835c89dc037a04d875425af486a9e19b21070fee44b4d1

  • SSDEEP

    12288:ZfZ6QaYTUyLtPZadefSO43NqKpEvUeIB5gp05sy2tHXbai1P4dX7:ZIdItgVtqw/jgry2tWiR4F

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\Payment_summaryRef_20251102e24.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment_summaryRef_20251102e24.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\Payment_summaryRef_20251102e24.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment_summaryRef_20251102e24.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:1628

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\nsdDBCA.tmp\System.dll

    Filesize

    11KB

    MD5

    75ed96254fbf894e42058062b4b4f0d1

    SHA1

    996503f1383b49021eb3427bc28d13b5bbd11977

    SHA256

    a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

    SHA512

    58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

  • memory/1528-30-0x0000000076FA1000-0x00000000770C1000-memory.dmp

    Filesize

    1.1MB

  • memory/1528-31-0x0000000076FA1000-0x00000000770C1000-memory.dmp

    Filesize

    1.1MB

  • memory/1528-32-0x0000000074474000-0x0000000074475000-memory.dmp

    Filesize

    4KB

  • memory/1628-33-0x00000000016F0000-0x000000000600D000-memory.dmp

    Filesize

    73.1MB

  • memory/1628-34-0x0000000077028000-0x0000000077029000-memory.dmp

    Filesize

    4KB

  • memory/1628-35-0x0000000077045000-0x0000000077046000-memory.dmp

    Filesize

    4KB

  • memory/1628-48-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/1628-49-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/1628-50-0x0000000076FA1000-0x00000000770C1000-memory.dmp

    Filesize

    1.1MB

  • memory/1628-51-0x00000000016F0000-0x000000000600D000-memory.dmp

    Filesize

    73.1MB

  • memory/1628-52-0x0000000071E9E000-0x0000000071E9F000-memory.dmp

    Filesize

    4KB

  • memory/1628-53-0x0000000000490000-0x00000000004F0000-memory.dmp

    Filesize

    384KB

  • memory/1628-54-0x0000000038F20000-0x0000000038FB8000-memory.dmp

    Filesize

    608KB

  • memory/1628-55-0x0000000071E90000-0x0000000072640000-memory.dmp

    Filesize

    7.7MB

  • memory/1628-59-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-66-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-109-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-115-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-113-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-111-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-105-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-103-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-101-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-99-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-97-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-107-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-95-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-93-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-91-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-89-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-87-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-85-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-81-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-79-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-77-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-75-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-73-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-71-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-69-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-67-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-63-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-61-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-83-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-57-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-56-0x0000000038F20000-0x0000000038FB1000-memory.dmp

    Filesize

    580KB

  • memory/1628-2120-0x0000000036790000-0x00000000367BC000-memory.dmp

    Filesize

    176KB

  • memory/1628-2121-0x0000000036B90000-0x0000000036BDC000-memory.dmp

    Filesize

    304KB

  • memory/1628-2122-0x0000000039140000-0x0000000039220000-memory.dmp

    Filesize

    896KB

  • memory/1628-5148-0x00000000392C0000-0x0000000039326000-memory.dmp

    Filesize

    408KB

  • memory/1628-5149-0x0000000071E9E000-0x0000000071E9F000-memory.dmp

    Filesize

    4KB

  • memory/1628-5150-0x0000000071E90000-0x0000000072640000-memory.dmp

    Filesize

    7.7MB

  • memory/1628-5151-0x0000000039620000-0x0000000039BC4000-memory.dmp

    Filesize

    5.6MB

  • memory/1628-5152-0x0000000039370000-0x0000000039402000-memory.dmp

    Filesize

    584KB

  • memory/1628-5153-0x0000000039D50000-0x0000000039D62000-memory.dmp

    Filesize

    72KB

  • memory/1628-5154-0x0000000039FB0000-0x000000003A000000-memory.dmp

    Filesize

    320KB

  • memory/1628-5155-0x0000000071E90000-0x0000000072640000-memory.dmp

    Filesize

    7.7MB

  • memory/1628-5158-0x0000000071E90000-0x0000000072640000-memory.dmp

    Filesize

    7.7MB