MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd. 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: 12


Intelligence 12 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd
SHA3-384 hash: ee4a7f11fbb03913dcc4181861f5e07639aa18b0d25476d4ca60e6fdd20cc6358318c464a6c849fc2d2650ac291ecec4
SHA1 hash: 5893f3799c20d3b2042e7480abf5e9199915366e
MD5 hash: 408d0913df1091a713e67db6321c73bf
humanhash: kentucky-fruit-cold-vermont
File name:89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:1'947'792 bytes
First seen:2021-10-22 07:49:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 20 x LummaStealer, 17 x Rhadamanthys)
ssdeep 24576:3AgMNiJpGUYVs6thcqQZqzDVKH+pIDzgZNbtUiBE1k:3MiJpGUv6th9QZiAHlQbtdBE1k
TLSH T1DA953916B8D30ABAC57EF1308552936176727C6847323BD71E84AAAA1E75FD82F3D310
Reporter JAMESWT_WT
Tags:CobaltStrike exe Rozena WinGo

Intelligence

File Origin
# of uploads :
1
# of downloads :
637
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/199292/
Detection(s):
Win.Malware.Bulz-9885329-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
monero overlay packed
Link:
https://www.filescan.io/uploads/61726d3ea9d585e6d5340d38/reports/83454807-3e51-4520-9441-56887ca72000/overview
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.
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b9383b66-4d53-41a3-a620-6f255f452860
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/875118
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd/
Threat name:
Win64.Trojan.Shelma
Create hunting rule
Status:
Malicious
First seen:
2021-10-20 02:40:02 UTC
AV detection:
9 of 41 (21.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rhfwlp5prz6llgrvxsuftxziisepd4rgjjeelq57z5hyfm6d7toq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:305419896 backdoor trojan
Link:
https://tria.ge/reports/211022-jpac9sbce8/
Behaviour
Cobaltstrike
Malware Config
C2 Extraction:
http://zh-cn.imags.microsoft.com.w.kunlunca.com:80/XNMj
http://zh-cn.imags.microsoft.com.w.kunlunca.com:80/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
Unpacked files
SH256 hash:
89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd
MD5 hash:
408d0913df1091a713e67db6321c73bf
SHA1 hash:
5893f3799c20d3b2042e7480abf5e9199915366e
Link:
https://www.unpac.me/results/8351e84c-303b-4217-9bfa-ad546816c937/
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/89cb65bfaf8e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/89cb65bfaf8e7cb59a35bca859df284488f1f2264a4845c3bfcf4f82b3c3fcdd

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
Create hunting rule
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:CobaltStrikeBeacon
Create hunting rule
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_MZ_Launcher
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike MZ header ReflectiveLoader launcher
Rule name:GoBinTest
Create hunting rule
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:HKTL_CobaltStrike_Beacon_Strings
Create hunting rule
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
Create hunting rule
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
Create hunting rule
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:INDICATOR_KB_CERT_6b0008bbd5eb53f5d9e616c3ed00000008bbd5
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_ReflectiveLoader
Create hunting rule
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
Rule name:MALW_cobaltrike
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:win_cobalt_strike_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/199292/

Comments