Overview

overview

10

Static

static

3

Purchase O...er.exe

windows7-x64

7

Purchase O...er.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Analysis

  • max time kernel
    93s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 20:29

Sharing

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General

  • Target

    Purchase Order Purchase Order Purchase Order Purchase Order.exe

  • Size

    707KB

  • MD5

    b9a03fb0c2c7f23a1e4ccb0d79c5053c

  • SHA1

    4d87c4ed89d8b92f2b6849dc6af6a8850f8e5e7c

  • SHA256

    099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f

  • SHA512

    7b39c7eb08b12f947a2f5fb79f91a7c8fb738fa14c2539db55f207754438f5b340d5ae5219ec1ea6861cb72aad32e04d2b701cc6a34c098e0a780db3607be3d2

  • SSDEEP

    12288:d35ol8MJEBhQRtZZbhhLSbWJgU8UFJ6UibZP9/I7TAWWtQnm:d3kJEBORt7b3Oa2Udi9P9yTB0Qnm

Score
10/10
guloaderdiscoverydownloader

Malware Config

Signatures

  • Guloader family
    guloader
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • Loads dropped DLL 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order Purchase Order Purchase Order Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order Purchase Order Purchase Order Purchase Order.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • 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:4008
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order Purchase Order Purchase Order Purchase Order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order Purchase Order Purchase Order Purchase Order.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsd8F02.tmp\System.dll
    Filesize

    11KB

    MD5

    75ed96254fbf894e42058062b4b4f0d1

    SHA1

    996503f1383b49021eb3427bc28d13b5bbd11977

    SHA256

    a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

    SHA512

    58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

    Download Submit

  • C:\Windows\Fonts\Gullis.lnk
    Filesize

    1KB

    MD5

    955d040ac661a1077248766694da6e1f

    SHA1

    d6b227c31e29cde880bcddbf2003647a8eacd696

    SHA256

    42ee8b020affe3880a95de2dae547216a222fa719db844a59aa065e714a71ca5

    SHA512

    0e23361f919814b55a3ec9f2c52a5559d63830639d81c0d45cde7d0bb36434ae102d260f2a91f1930ff8bdbf16b6c5daeefc02f670985e62b8fbdaa4076dbf6e

    Download Submit

  • memory/436-25-0x0000000001660000-0x000000000454A000-memory.dmp

    Filesize

    46.9MB

    Download

  • memory/436-21-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/436-22-0x0000000001660000-0x000000000454A000-memory.dmp

    Filesize

    46.9MB

    Download

  • memory/436-23-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/436-24-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/436-26-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/436-27-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/436-30-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

    Download

  • memory/4008-19-0x0000000076FF1000-0x0000000077111000-memory.dmp

    Filesize

    1.1MB

    Download

  • memory/4008-20-0x0000000002A80000-0x000000000596A000-memory.dmp

    Filesize

    46.9MB

    Download

  • memory/4008-18-0x0000000002A80000-0x000000000596A000-memory.dmp

    Filesize

    46.9MB

    Download