Overview

overview

10

Static

static

10

esg.exe

windows7-x64

10

esg.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 20:00

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General

  • Target

    esg.exe

  • Size

    839KB

  • MD5

    1ef3aeb3921f543f6b951d32a8f992e4

  • SHA1

    5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9

  • SHA256

    ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410

  • SHA512

    60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5

  • SSDEEP

    24576:VjSS04YNEMuExDiU6E5R9s8xY/2l/dIIbt+rU:VjO4auS+UjfU2TIIbt+r

Score
10/10
orcusaefgagdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

Botnet

aefgag

C2

87.177.68.221

127.0.0.1
Mutex

b5955cf7135e45a0a859f80a5a6c9e47

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    1

  • change_creation_date

    false

  • force_installer_administrator_privileges

    false

  • hide_file

    false

  • install

    false

  • installation_folder

    %appdata%\Microsoft\Speech\AudioDriver.exe

  • installservice

    false

  • keylogger_enabled

    false

  • newcreationdate

    11/28/2024 20:55:38

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • registry_autostart_keyname

    Audio HD Driver

  • registry_hidden_autostart

    false

  • set_admin_flag

    false

  • tasksch_name

    Audio HD Driver

  • tasksch_request_highest_privileges

    false

  • try_other_autostart_onfail

    false

aes.plain

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

    ratspywarestealerorcus
  • Orcus family
    orcus
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\esg.exe
    "C:\Users\Admin\AppData\Local\Temp\esg.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:2576

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
    Filesize

    839KB

    MD5

    1ef3aeb3921f543f6b951d32a8f992e4

    SHA1

    5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9

    SHA256

    ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410

    SHA512

    60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5

    Download Submit

  • memory/2576-15-0x0000000000370000-0x0000000000448000-memory.dmp

    Filesize

    864KB

    Download

  • memory/2576-16-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2576-17-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2576-18-0x0000000002190000-0x00000000021A0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2576-19-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2868-2-0x00000000006E0000-0x00000000006EA000-memory.dmp

    Filesize

    40KB

    Download

  • memory/2868-3-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2868-4-0x00000000042D0000-0x000000000431C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/2868-7-0x0000000004800000-0x000000000484E000-memory.dmp

    Filesize

    312KB

    Download

  • memory/2868-1-0x0000000000A00000-0x0000000000AD8000-memory.dmp

    Filesize

    864KB

    Download

  • memory/2868-14-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2868-0-0x00000000740DE000-0x00000000740DF000-memory.dmp

    Filesize

    4KB

    Download