Overview

overview

10

Static

static

8

b5827aae66...bd.exe

windows7-x64

10

b5827aae66...bd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    193s
  • max time network
    225s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 12:32

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General

  • Target

    b5827aae668f29b68df6cc4b974c66f787c3a3ac11062ee719a3b1b286ddefbd.exe

  • Size

    1.7MB

  • MD5

    0946f27e7ea817515c57de10d31be260

  • SHA1

    265719038b95611c8df9064035533ea35cd0d18c

  • SHA256

    b5827aae668f29b68df6cc4b974c66f787c3a3ac11062ee719a3b1b286ddefbd

  • SHA512

    5bf84b2a704d7bb021c5639aa40f9bc3d093ef251ed0b9d33824560e98efa21188982bdfcea80e45a06587634d0022a77207c2c4a1338daeb1be016d05177bac

  • SSDEEP

    49152:ZNTfjbw1drCTM3HS5LedtQSXyqmx44Vbx4I11ts3DT5BbYiH:L7bwbmTyHS5LedtHbmxzVbx4I11tsTtf

Score
10/10
cobaltstrike0305419896backdoortrojanupx

Malware Config

Extracted

Family

cobaltstrike

Botnet

305419896

C2

http://114.132.241.103:443/admin/login

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    114.132.241.103,/admin/login

  • http_header1

    AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAnUmVmZXJlcjogaHR0cHM6Ly93d3cuYmp0LmJlaWppbmcuZ292LmNuAAAABwAAAAAAAAADAAAAAgAAAApTRVNTSU9OSUQ9AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAnUmVmZXJlcjogaHR0cHM6Ly93d3cuYmp0LmJlaWppbmcuZ292LmNuAAAABwAAAAAAAAADAAAAAgAAAAlKU0VTU0lPTj0AAAAGAAAABkNvb2tpZQAAAAcAAAABAAAAAwAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • maxdns

    255

  • polling_time

    5000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTUlJ7J79z/MkkV8+MsYlOvREE2hhdGNzrKPFZ10lY0K5legA+um5JxESEaC0woDgSmOGrkh1giz/aQwd6tG4mihFgpi0oIbfwu6XZbE6ghYGyu2F7+A5TifRUzvU0YLXjK78EW12XhjHx4KopMF/AtOAueGwfiI2DmXwNzrBDvwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.82554112e+09

  • unknown2

    AAAABAAAAAEAAANBAAAAAgAAAqMAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /admin/user

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36

  • watermark

    305419896

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5827aae668f29b68df6cc4b974c66f787c3a3ac11062ee719a3b1b286ddefbd.exe
    "C:\Users\Admin\AppData\Local\Temp\b5827aae668f29b68df6cc4b974c66f787c3a3ac11062ee719a3b1b286ddefbd.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Windows\system32\cmd.exe
      cmd " /c " C:\Users\Admin\AppData\Local\Temp\a.jpg
      2⤵
        PID:4156

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/760-132-0x0000000000C70000-0x000000000101B000-memory.dmp
      Filesize

      3.7MB

      Download
    • memory/760-134-0x0000000000C70000-0x000000000101B000-memory.dmp
      Filesize

      3.7MB

      Download
    • memory/760-135-0x000002186C140000-0x000002186C1BD000-memory.dmp
      Filesize

      500KB

      Download
    • memory/760-136-0x000002186BD40000-0x000002186C140000-memory.dmp
      Filesize

      4.0MB

      Download
    • memory/4156-133-0x0000000000000000-mapping.dmp
      Download