MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18b056a1951f2e7c4ab96095d25e015da4e456493d0591c94584a9063c399025. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



CobaltStrike


Vendor detections: 8


Intelligence 8 IOCs YARA 10 File information Comments 1

SHA256 hash: 18b056a1951f2e7c4ab96095d25e015da4e456493d0591c94584a9063c399025
SHA3-384 hash: f174c4a0eff7d3947b611144799f5f7b5ecd0628a090e913236c2bf7f5e8c09d10fe7b1bf0c6a47b65f1b70042eb63a0
SHA1 hash: e537f77672e7a0f6ec8fd3063524bf29e42867e2
MD5 hash: 01fbd69aa44b75f2948a817f340d599b
humanhash: may-summer-enemy-thirteen
File name:01fbd69aa44b75f2948a817f340d599b.exe
Download: download sample
Signature CobaltStrike
File size:449'024 bytes
First seen:2021-05-11 07:13:09 UTC
Last seen:2021-05-11 08:19:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e65a95c59aa483750033184c186e4f9b (1 x CobaltStrike)
ssdeep 6144:oQoY7z0MVihidNhYkQRKUJTB4a4svREAHGz8xA4XgPwhparyyb49tTFDbEA38i7:kY7xYidNhYjwvsRHo8xnXQ2B28FvEzi
Threatray 906 similar samples on MalwareBazaar
TLSH 37A4F15B73A2B0F8F16A8175C8D21606E7B2B83127619B9F13A417262F376D18D3E770
Reporter abuse_ch
Tags:CobaltStrike exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
589
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Connection attempt
Sending a UDP request
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Injects a PE file into a foreign processes
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes to foreign memory regions
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.CobaltStrike
Status:
Malicious
First seen:
2021-03-26 14:38:04 UTC
AV detection:
30 of 47 (63.83%)
Threat level:
  5/5
Gathering data
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:CobaltStrikeBeacon
Author:enzo
Description:Cobalt Strike Beacon Payload
Rule name:CS_beacon
Author:Etienne Maynier tek@randhome.io
Rule name:HKTL_CobaltStrike_Beacon_Strings
Author:Elastic
Description:Identifies strings used in Cobalt Strike Beacon DLL
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
Rule name:HKTL_Meterpreter_inMemory
Author:netbiosX, Florian Roth
Description:Detects Meterpreter in-memory
Reference:https://www.reddit.com/r/purpleteamsec/comments/hjux11/meterpreter_memory_indicators_detection_tooling/
Rule name:INDICATOR_SUSPICIOUS_ReflectiveLoader
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
Rule name:MALW_cobaltrike
Author:Marc Rivero | McAfee ATR Team
Description:Rule to detect CobaltStrike beacon
Rule name:ReflectiveLoader
Author:Florian Roth
Description:Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_URL_in_EXE
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_cobalt_strike_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

CobaltStrike

Executable exe 18b056a1951f2e7c4ab96095d25e015da4e456493d0591c94584a9063c399025

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-11 08:07:38 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0012.001] Anti-Static Analysis::Argument Obfuscation
1) [C0026.002] Data Micro-objective::XOR::Encode Data
3) [C0052] File System Micro-objective::Writes File
4) [C0040] Process Micro-objective::Allocate Thread Local Storage
5) [C0041] Process Micro-objective::Set Thread Local Storage Value
6) [C0018] Process Micro-objective::Terminate Process