Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-02-2025 04:42

General

  • Target

    d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929.exe

  • Size

    908KB

  • MD5

    40c447efce06ab79578f644dfe7e7868

  • SHA1

    ad2348c4070b0123a21d6f3ace66bf8449ed3fac

  • SHA256

    d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929

  • SHA512

    62191ffd4ee143e21d553fb2f4156dd3ff5263e8af9808cec5917d146d8a9e61ab2202eda1e3dea62a6a86e2391ebf85795ea10c7eb0f616bc3a2e106814952b

  • SSDEEP

    24576:LPx/Z54UCxaagjCHvOUVEinQnb7O0lo9arWo7:bx/Z5UaagjGvOGEh7JlEarD

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 2 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
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 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 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929.exe
    "C:\Users\Admin\AppData\Local\Temp\d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929.exe
      "C:\Users\Admin\AppData\Local\Temp\d331749ecbf58bf0c3b71c27a2510cacc20822c4ea6bc4526c51d3ce078c5929.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:1124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Diathermance.lnk

    Filesize

    1KB

    MD5

    67a0ef599b90c93cf8264d52b6b5e288

    SHA1

    e35ed022570ce94d5fbaeefb210301fe9abb87fd

    SHA256

    5e71d4948c576bcf5578222ded69020cb953507a051fd9afddfc96cc5fd725c0

    SHA512

    99b515216fdf86d3ff879defd7000bf0a1c19be1b3517e27560ea04bc6c7563b8a451aa51ca30e8399c8667f27571c5c4e3391d6575b77c177227f277e119eb3

  • \Users\Admin\AppData\Local\Temp\nsyF345.tmp\System.dll

    Filesize

    11KB

    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • memory/1124-369-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-288-0x0000000001860000-0x000000000373F000-memory.dmp

    Filesize

    30.9MB

  • memory/1124-2395-0x0000000036A30000-0x0000000036B10000-memory.dmp

    Filesize

    896KB

  • memory/1124-321-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-289-0x0000000077470000-0x0000000077619000-memory.dmp

    Filesize

    1.7MB

  • memory/1124-291-0x0000000077470000-0x0000000077619000-memory.dmp

    Filesize

    1.7MB

  • memory/1124-290-0x00000000007F0000-0x0000000001852000-memory.dmp

    Filesize

    16.4MB

  • memory/1124-314-0x00000000007F0000-0x0000000001852000-memory.dmp

    Filesize

    16.4MB

  • memory/1124-316-0x00000000007F0000-0x0000000000850000-memory.dmp

    Filesize

    384KB

  • memory/1124-315-0x0000000001860000-0x000000000373F000-memory.dmp

    Filesize

    30.9MB

  • memory/1124-2384-0x0000000034490000-0x00000000344DC000-memory.dmp

    Filesize

    304KB

  • memory/1124-333-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-371-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-339-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-341-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-331-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-318-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-357-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-355-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-363-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-317-0x0000000034260000-0x00000000342F8000-memory.dmp

    Filesize

    608KB

  • memory/1124-2383-0x0000000034120000-0x000000003414C000-memory.dmp

    Filesize

    176KB

  • memory/1124-319-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-323-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-325-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-329-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-337-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-359-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-375-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-373-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-367-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-365-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-361-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-353-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-351-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-349-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-347-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-345-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-343-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-335-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/1124-327-0x0000000034260000-0x00000000342F1000-memory.dmp

    Filesize

    580KB

  • memory/2736-286-0x0000000077471000-0x0000000077572000-memory.dmp

    Filesize

    1.0MB

  • memory/2736-285-0x0000000003170000-0x000000000504F000-memory.dmp

    Filesize

    30.9MB

  • memory/2736-287-0x0000000077470000-0x0000000077619000-memory.dmp

    Filesize

    1.7MB