Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 01:29

General

  • Target

    a69839da451a8bf04259687309ceb825b1260186d353fb2555612ed006582e5b.exe

  • Size

    118KB

  • MD5

    a83b2a5ff3529936192398c88edd27a3

  • SHA1

    ea008405ea9fe482676789bc584a5bc03dac5b92

  • SHA256

    a69839da451a8bf04259687309ceb825b1260186d353fb2555612ed006582e5b

  • SHA512

    5196d43f3dd31d02247969f486fab9d5e3081174eec7cf1e927f6e82d6f36c912d1b91257aad8285748e383fcead68495038b99886ff54c007d16b86c488a40e

  • SSDEEP

    3072:QJ4zfapVGYIC2MIEGuLuNP4FJed7eHnXm6qIXLE:8EypVnIC2oGuqNP1d7eHnXm6qIX

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 64 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 5 IoCs

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

  • 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a69839da451a8bf04259687309ceb825b1260186d353fb2555612ed006582e5b.exe
    "C:\Users\Admin\AppData\Local\Temp\a69839da451a8bf04259687309ceb825b1260186d353fb2555612ed006582e5b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\LKMService.exe
      "C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\LKMService.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4212
      • C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\GoogleUpdater.exe
        "C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\GoogleUpdater.exe" --checker
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:688
      • C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\3f02d4e30ba04eb58356926eeed241bc.exe
        "C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\3f02d4e30ba04eb58356926eeed241bc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:712
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\3f02d4e30ba04eb58356926eeed241bc.exe

    Filesize

    1.9MB

    MD5

    34ec7a5a9154386680a400b65cada6cb

    SHA1

    a97b1bf2c6af2499c31510bd8c2efce3c50482f6

    SHA256

    f0bfcf5fc84fbbbe4b4a46cf51193a359cfddbd79aa88f81d6da4f5dab79ba70

    SHA512

    3c675d631cd15283d3f258c90615c2be10bcdb7f0405f4c3ba50a2c3b3f59f7533951f33be75809e920b8d74ff56bbb83bf48e3ef9814621cf1dea6cfbe55eee

  • C:\Users\Admin\AppData\Local\Temp\EdgeUpdater\LKMService.exe

    Filesize

    118KB

    MD5

    a83b2a5ff3529936192398c88edd27a3

    SHA1

    ea008405ea9fe482676789bc584a5bc03dac5b92

    SHA256

    a69839da451a8bf04259687309ceb825b1260186d353fb2555612ed006582e5b

    SHA512

    5196d43f3dd31d02247969f486fab9d5e3081174eec7cf1e927f6e82d6f36c912d1b91257aad8285748e383fcead68495038b99886ff54c007d16b86c488a40e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LKMService_ba33e41971ce45c9b341e12e48c26ef2.lnk

    Filesize

    1KB

    MD5

    e101126f02a85f24abcac905202cd6e8

    SHA1

    1ddf9fcffb494f7ffc271d1f67e4e0065b8cdd7c

    SHA256

    17f00ba86010c4517cc2f41fc4d7e9868cf8c986926465a85c223abd1308b7a2

    SHA512

    6cda2494aa37e322a337a7624b2fe225195f5243f2647a30a5b65f88057c529ffbed83030ba6b4288c788d416fcc555c7c3b99bcbcf5171cce4fd75251d3158f

  • memory/688-83-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/688-80-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/688-40-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/688-38-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/712-61-0x0000000000D80000-0x0000000000F64000-memory.dmp

    Filesize

    1.9MB

  • memory/2356-5-0x0000000004FF0000-0x0000000004FF6000-memory.dmp

    Filesize

    24KB

  • memory/2356-2-0x0000000002E90000-0x0000000002E96000-memory.dmp

    Filesize

    24KB

  • memory/2356-1-0x0000000000B70000-0x0000000000B94000-memory.dmp

    Filesize

    144KB

  • memory/2356-23-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/2356-0-0x0000000074FAE000-0x0000000074FAF000-memory.dmp

    Filesize

    4KB

  • memory/2356-4-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/2356-3-0x00000000054E0000-0x00000000054FE000-memory.dmp

    Filesize

    120KB

  • memory/4196-65-0x0000000000400000-0x00000000005E0000-memory.dmp

    Filesize

    1.9MB

  • memory/4196-69-0x0000000000400000-0x00000000005E0000-memory.dmp

    Filesize

    1.9MB

  • memory/4196-67-0x0000000000400000-0x00000000005E0000-memory.dmp

    Filesize

    1.9MB

  • memory/4212-74-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-77-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-24-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-22-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB