Overview

overview

8

Static

static

4de875be92...eb.exe

windows7-x64

8

4de875be92...eb.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 16:10

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb.exe

  • Size

    301KB

  • MD5

    2e7cd2f7f5fbd0840bc41d4ea1bb20d2

  • SHA1

    2f4dda5a7818817610a2e5b74f3f4b87dba59fa6

  • SHA256

    4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb

  • SHA512

    4a9a21f9c6a0381f781a0e8bccdd3e7336d40c0c0790d9764fae006964f0a554e17e2e13868fb13602f1a265d9785dc8d8479ece3fdb320d130cadf07ab98ec5

  • SSDEEP

    6144:PX67o2eiEsOmN+MC5+0tWHccB/kIie0K+evGPMbyJqm:CrPdN25+0t+BcC02GPwwq

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb.exe
    "C:\Users\Admin\AppData\Local\Temp\4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Users\Admin\AppData\Local\Temp\skype.exe
      "C:\Users\Admin\AppData\Local\Temp\skype.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4644
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\skype.exe" "skype.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

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

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\skype.exe
    Filesize

    301KB

    MD5

    2e7cd2f7f5fbd0840bc41d4ea1bb20d2

    SHA1

    2f4dda5a7818817610a2e5b74f3f4b87dba59fa6

    SHA256

    4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb

    SHA512

    4a9a21f9c6a0381f781a0e8bccdd3e7336d40c0c0790d9764fae006964f0a554e17e2e13868fb13602f1a265d9785dc8d8479ece3fdb320d130cadf07ab98ec5

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\skype.exe
    Filesize

    301KB

    MD5

    2e7cd2f7f5fbd0840bc41d4ea1bb20d2

    SHA1

    2f4dda5a7818817610a2e5b74f3f4b87dba59fa6

    SHA256

    4de875be9247431acbc6388d427da8993843b0b89094a7825696935b875d22eb

    SHA512

    4a9a21f9c6a0381f781a0e8bccdd3e7336d40c0c0790d9764fae006964f0a554e17e2e13868fb13602f1a265d9785dc8d8479ece3fdb320d130cadf07ab98ec5

    Download Submit
  • memory/2764-137-0x0000000000000000-mapping.dmp
    Download
  • memory/3820-132-0x00007FF962CB0000-0x00007FF9636E6000-memory.dmp
    Filesize

    10.2MB

    Download
  • memory/4644-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4644-136-0x00007FF962CB0000-0x00007FF9636E6000-memory.dmp
    Filesize

    10.2MB

    Download