Overview

overview

10

Static

static

3

efb39ef023...76.exe

windows7-x64

7

efb39ef023...76.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    efb39ef02375a4b9d93d4f62efb40f95896d87bd18988f5d740ce1d117992876

  • Size

    3.4MB

  • Sample

    240218-x9me8adh9x

  • MD5

    112e6b1a7fa7ce6b2679a2fcdba7570a

  • SHA1

    8b38f0e256a98d713b09d78c1d1ff69b502b9577

  • SHA256

    efb39ef02375a4b9d93d4f62efb40f95896d87bd18988f5d740ce1d117992876

  • SHA512

    b604d4c5d77d98c532e304f33729b92d94b5800745f38e116f038d276b6ceaa9912ac15b62f1a69e4bab286eb884b8137d3dd442301c6a602ae5e2d29096223e

  • SSDEEP

    49152:wI1BMSvHH9sufzgtSN9t9/y8MH31Q+QVc5GxJxn+mqEvzHyZsUocVIIR6qW+LKNR:wDSvxrg+t9/ypFQ+QuKJ9TyZ9JKz

Score
10/10
cobaltstrike0100000backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://154.9.255.31:6666/vSFN

Attributes
  • user_agent

    User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; qdesk 2.4.1263.203; Windows NT 6.1; WOW64; Trident/5.0)

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://154.9.255.31:6666/pixel.gif

Attributes
  • access_type

    512

  • host

    154.9.255.31,/pixel.gif

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • polling_time

    60000

  • port_number

    6666

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDK3rLzrZjUM9JHGk+MkyiweizMh1UN5SghOUGMem0V661GlZU3VFjgj0GjDCZ7n7BB/ZxZlZW3+AyFk84CWktpKLetpsqUQfwVZXXybglwzxC6dgLck3I5vbXIPgyQwgUBW57GNmFiabvB1aCn90NMXnSeNSQypauXKIbsXCYtEwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; LG; LG-E906)

  • watermark

    100000

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Targets

    • Target

      efb39ef02375a4b9d93d4f62efb40f95896d87bd18988f5d740ce1d117992876

    • Size

      3.4MB

    • MD5

      112e6b1a7fa7ce6b2679a2fcdba7570a

    • SHA1

      8b38f0e256a98d713b09d78c1d1ff69b502b9577

    • SHA256

      efb39ef02375a4b9d93d4f62efb40f95896d87bd18988f5d740ce1d117992876

    • SHA512

      b604d4c5d77d98c532e304f33729b92d94b5800745f38e116f038d276b6ceaa9912ac15b62f1a69e4bab286eb884b8137d3dd442301c6a602ae5e2d29096223e

    • SSDEEP

      49152:wI1BMSvHH9sufzgtSN9t9/y8MH31Q+QVc5GxJxn+mqEvzHyZsUocVIIR6qW+LKNR:wDSvxrg+t9/ypFQ+QuKJ9TyZ9JKz

    Score
    10/10
    cobaltstrike0100000backdoortrojan

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks