Overview

overview

10

Static

static

3

WTSAPI32.dll

windows7-x64

1

WTSAPI32.dll

windows10-2004-x64

1

music.exe

windows7-x64

10

music.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 08:42

Sharing

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General

  • Target

    music.exe

  • Size

    1.4MB

  • MD5

    57c3a0543085a646c010beaabf16d0be

  • SHA1

    b8c0951241dc0e55c4bd73c5e2d33242bd683ff2

  • SHA256

    14436eaf182648ab89c9a54d2e83e5071c07c250e6c744a314035f9424a9106f

  • SHA512

    35e7b74ff0d07e1d392b6a88a3f4dfc2e1b2d77e8a9246621ad8bf15e41b8c4434a75bcf22d692e24f5450ce38b0440a7ccd749cc9d123a95487ce89cab298e8

  • SSDEEP

    12288:mKg1wFSd2zIucT9v+8CbdEujvqzVoZTZINv/GPwVOPc+62z77ei8M/TW0n/T+QN1:mISYzIuw90GkT6Nv/GPwVOE+6Gei8U

Score
10/10
cobaltstrike100000backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://www.hikunpeng.com:80/audiencemanager.js

Attributes
  • access_type

    512

  • host

    www.hikunpeng.com,/audiencemanager.js

  • http_header1

    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

  • http_header2

    AAAACgAAAEdBY2NlcHQ6IHRleHQvaHRtbCxhcHBsaWNhdGlvbi94aHRtbCt4bWwsYXBwbGljYXRpb24veG1sO3E9MC45LCovKjtxPTAuOAAAABAAAAAVSG9zdDogY2RuLmJvb3Rjc3MuY29tAAAACgAAACBSZWZlcmVyOiBodHRwOi8vY2RuLmJvb3Rjc3MuY29tLwAAAAoAAAAeQWNjZXB0LUVuY29kaW5nOiBnemlwLCBkZWZsYXRlAAAABwAAAAAAAAANAAAABQAAAAdfX21zLWN2AAAABwAAAAEAAAANAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    9472

  • polling_time

    30000

  • port_number

    80

  • sc_process32

    %windir%\syswow64\runonce.exe

  • sc_process64

    %windir%\sysnative\runonce.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJKQv1XF4Cmh2xywEarCa/bP0HPP+UFEQJHMOo5NsyVYvAVfHd59D4LmvVhtB6dvdqdkLUunc6NQljbO4D42xMOrFI41rqlbFibjEJQYX58RbZvjS1bhHVKa9XdQIQRpuk3eWO4Pk+iGyM1gHKjyZT+PV5lhUp1aBwAUirc7UnEQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    1.435374848e+09

  • unknown2

    AAAABAAAAAEAAAf+AAAAAgAAIUwAAAACAAAPtQAAAA0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /audiencemanager-v2.js

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4044.62 Safari/537.36

  • watermark

    100000

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Drops file in Windows directory 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\music.exe
    "C:\Users\Admin\AppData\Local\Temp\music.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    PID:3032

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3032-0-0x00000000003F0000-0x0000000000412000-memory.dmp
    Filesize

    136KB

    Download
  • memory/3032-7-0x0000000072470000-0x0000000073F55000-memory.dmp
    Filesize

    26.9MB

    Download
  • memory/3032-10-0x00000000003F0000-0x0000000000412000-memory.dmp
    Filesize

    136KB

    Download
  • memory/3032-11-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-15-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-19-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-23-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-31-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-27-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-39-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-35-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-43-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-47-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-48-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-63-0x00000000747B0000-0x00000000747FF000-memory.dmp
    Filesize

    316KB

    Download
  • memory/3032-66-0x0000000074AB0000-0x0000000074AFF000-memory.dmp
    Filesize

    316KB

    Download
  • memory/3032-67-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-68-0x0000000074760000-0x00000000747A0000-memory.dmp
    Filesize

    256KB

    Download
  • memory/3032-69-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-70-0x0000000074A60000-0x0000000074AA1000-memory.dmp
    Filesize

    260KB

    Download
  • memory/3032-71-0x0000000072470000-0x0000000073F55000-memory.dmp
    Filesize

    26.9MB

    Download
  • memory/3032-72-0x0000000048150000-0x00000000482EF000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-73-0x0000000047FB0000-0x000000004814F000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3032-74-0x0000000074A60000-0x0000000074AA1000-memory.dmp
    Filesize

    260KB

    Download