Overview

overview

10

Static

static

cb03fe7557...2e.exe

windows7_x64

10

cb03fe7557...2e.exe

windows10_x64

10

Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-04-2021 09:03

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General

  • Target

    cb03fe75572bc1d3406e9b3cda1e782e.exe

  • Size

    160KB

  • MD5

    cb03fe75572bc1d3406e9b3cda1e782e

  • SHA1

    d66bb237393370460edb2f32b3a696823f9bc9f4

  • SHA256

    19bf54b5145b7080462d1f459dd88a6c7b8f6eb815be116651ad9016939777f0

  • SHA512

    d4509419b97b105554ebfa27826afbf407ba6a41e89275f1fd6f28c120076a9e99965cac78fd41b63e6918d92176a9c6cd7414af904e395d6165e536a8d236d9

Score
10/10
guloadermodiloaderdownloaderguloaderpersistencetrojan

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    trojanmodiloader
  • Guloader Payload 3 IoCs
    guloader
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb03fe75572bc1d3406e9b3cda1e782e.exe
    "C:\Users\Admin\AppData\Local\Temp\cb03fe75572bc1d3406e9b3cda1e782e.exe"
    1⤵
    • Checks QEMU agent file
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Users\Admin\AppData\Local\Temp\cb03fe75572bc1d3406e9b3cda1e782e.exe"
      2⤵
      • Checks QEMU agent file
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:4004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/4004-117-0x0000000000F60000-0x0000000001060000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/4004-118-0x0000000000F60000-mapping.dmp
    Download
  • memory/4056-116-0x00000000021C0000-0x00000000021CA000-memory.dmp
    Filesize

    40KB

    Download