Overview

overview

10

Static

static

9

4b792c505b...c8.exe

windows7_x64

10

4b792c505b...c8.exe

windows10_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    20-04-2021 19:51

Sharing

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General

  • Target

    4b792c505b6dedad9f2a21c866212e96ae12c8415e3e9b249fa235e63398c2c8.exe

  • Size

    844KB

  • MD5

    3dfc20d3780cb61f0654ef3116bdc8bb

  • SHA1

    5efe6acfb7e80c23f5734b020578f032342fc77d

  • SHA256

    4b792c505b6dedad9f2a21c866212e96ae12c8415e3e9b249fa235e63398c2c8

  • SHA512

    227904c9efe3ded15599ab1a555aee56721fc0059a0c8b4c42dee5c8c6208434b4ed72c0d878c98c21fec0695569e98fb99fb4781f88fa3eca7256bb560abd90

Score
10/10
cobaltstrikebackdoortrojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://fashmie.com:443/assets/environment-f0a84e0c1.js

Attributes
  • access_type

    512

  • beacon_type

    2048

  • create_remote_thread

    0

  • day

    0

  • dns_idle

    0

  • dns_sleep

    0

  • host

    fashmie.com,/assets/environment-f0a84e0c1.js

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    POST

  • injection_process

  • jitter

    9472

  • maxdns

    0

  • month

    0

  • pipe_name

  • polling_time

    25000

  • port_number

    443

  • proxy_password

  • proxy_server

  • proxy_username

  • sc_process32

    %windir%\syswow64\dllhost1.exe

  • sc_process64

    %windir%\sysnative\dllhost1.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDa14pI+KHc4hacVJaYyMZHO0bzpDtNhP+JNn5mApEDAj9xpSHnp8rVq0Ekc9691bMZnfxnHdhxmXcSdPtBtI/nTtBlOnO/FZx9YuRssfXOP63XJ5eosw0DH6V5MM5EtAGUAlxGRS0okFP14AH9ACPjPhNXKgUhfGoWfDbnpwJnQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.3969984e+09

  • unknown2

    AAAABAAAAAEAAAAyAAAAAgAAACQAAAACAAAlGQAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown3

    0

  • unknown4

    0

  • unknown5

    0

  • uri

    /assets/chunk-vendor-4c69db4f.js

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36

  • year

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b792c505b6dedad9f2a21c866212e96ae12c8415e3e9b249fa235e63398c2c8.exe
    "C:\Users\Admin\AppData\Local\Temp\4b792c505b6dedad9f2a21c866212e96ae12c8415e3e9b249fa235e63398c2c8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\system32\upnpcont.exe
      upnpcont.exe
      2⤵
        PID:2024

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1080-60-0x0000000000400000-0x00000000004D8000-memory.dmp
      Filesize

      864KB

      Download
    • memory/1080-63-0x0000000001D60000-0x0000000001E1F000-memory.dmp
      Filesize

      764KB

      Download
    • memory/2024-61-0x0000000000000000-mapping.dmp
      Download
    • memory/2024-62-0x0000000001C90000-0x0000000002102000-memory.dmp
      Filesize

      4.4MB

      Download
    • memory/2024-64-0x0000000000060000-0x00000000000A0000-memory.dmp
      Filesize

      256KB

      Download
    • memory/2024-65-0x000007FEFB631000-0x000007FEFB633000-memory.dmp
      Filesize

      8KB

      Download
    • memory/2024-66-0x0000000001C90000-0x0000000002102000-memory.dmp
      Filesize

      4.4MB

      Download