MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39bcc68556caf5f83fc73d53b691de3d1017d2add92da447d357bac2f86cc7d0. 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: 14


Intelligence 14 IOCs YARA 15 File information Comments

SHA256 hash: 39bcc68556caf5f83fc73d53b691de3d1017d2add92da447d357bac2f86cc7d0
SHA3-384 hash: 07363342c3364d993ad898c9b63156041ae6b029a80012bf2c26799be4a5d5378da2774a300eb803af6cbbe70eff6d7d
SHA1 hash: 33926de0c5ea86b058fcd33ea5530bd2c1c930be
MD5 hash: 68575d0fe4ddf2a4773888df3ab1b5e4
humanhash: grey-gee-kansas-magazine
File name:68575d0fe4ddf2a4773888df3ab1b5e4
Download: download sample
Signature CobaltStrike
File size:46'592 bytes
First seen:2022-05-25 11:05:09 UTC
Last seen:2022-05-25 11:58:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f42ca71ad90e2ef189b00a6953453ce2 (1 x CobaltStrike)
ssdeep 384:Hp3+IXKc206uHhcZtZfWtO/LvdgbTYxwp8Yv5ZM3rITMM639jsiy8z3Ca9uzQ08T:Hp3V36uWmO/LVgTkYxZMJ39j0Puuyb3
Threatray 1'922 similar samples on MalwareBazaar
TLSH T13423F785762480B1F28791FC9152BD66A13B3CEF8791748F5384365A2FB36E2BA35703
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 3078c0ccccc0d8c0 (1 x CobaltStrike)
Reporter Anonymous
Tags:CobaltStrike exe NEED

Intelligence


File Origin
# of uploads :
3
# of downloads :
702
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
68575d0fe4ddf2a4773888df3ab1b5e4
Verdict:
No threats detected
Analysis date:
2022-05-25 11:06:20 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Searching for synchronization primitives
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
MalwareBazaar
CPUID_Instruction
MeasuringTime
EvasionQueryPerformanceCounter
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Cobalt Strike
Verdict:
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
Changes memory attributes in foreign processes to executable or writable
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Malicious sample detected (through community Yara rule)
Writes to foreign memory regions
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Status:
Malicious
First seen:
2022-05-25 11:19:46 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Cobaltstrike
suricata: ET MALWARE Successful Cobalt Strike Shellcode Download (x64) M1
Malware Config
C2 Extraction:
http://192.168.1.5:8011/search/
Unpacked files
SH256 hash:
39bcc68556caf5f83fc73d53b691de3d1017d2add92da447d357bac2f86cc7d0
MD5 hash:
68575d0fe4ddf2a4773888df3ab1b5e4
SHA1 hash:
33926de0c5ea86b058fcd33ea5530bd2c1c930be
Malware family:
CobaltStrike
Verdict:
Malicious
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:Cobaltbaltstrike_Beacon_x64
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:Cobaltbaltstrike_Payload_Encoded
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:CobaltStrikeBeacon
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_MZ_Launcher
Author:yara@s3c.za.net
Description:Detects CobaltStrike MZ header ReflectiveLoader launcher
Rule name:CobaltStrike_Sleep_Decoder_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
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:HKTL_Win_CobaltStrike
Author:threatintel@volexity.com
Description:The CobaltStrike malware family.
Reference:https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/
Rule name:malware_CobaltStrike_v3v4
Author:JPCERT/CC Incident Response Group
Description:detect CobaltStrike Beacon in memory
Reference:https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html
Rule name:MALW_cobaltrike
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Rule to detect CobaltStrike beacon
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike
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_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:win_cobalt_strike_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.cobalt_strike.

File information


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

Comments