MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3da6e1803b8aa6a2b726dd0517c38fc355b1aa4c97de638d860b6eac203794b. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3da6e1803b8aa6a2b726dd0517c38fc355b1aa4c97de638d860b6eac203794b
SHA3-384 hash: abb8c9165c2fb19b7e7123e27621e4b978146c02312872eae2577388b60ac3109fc3ebc4abf082e016fa48a3e4ad67ea
SHA1 hash: b7aaa66fb248ecd8bf833c43e9d99f859f1b97c4
MD5 hash: 1eb05a1af93579718f2f7389db23337f
humanhash: indigo-august-robert-blossom
File name:cs.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:226'816 bytes
First seen:2021-09-29 20:01:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 829da329ce140d873b4a8bde2cbfaa7e (259 x CobaltStrike)
ssdeep 3072:GLVaDFq8d1HaD8CBbezrSHdMqNHqRUiZNRieJEl+GNjqdRI:Gxac8d1HaLJmKd3KRUiZNbErqrI
Threatray 496 similar samples on MalwareBazaar
TLSH T17824F1B8D06759CAD958D1B8A7AD77303F6691B7780C28F8AEC3887C82F71101539B97
Reporter drb_ra
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
523
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cobaltstrike_shellcode.exe
Verdict:
No threats detected
Analysis date:
2021-09-29 20:01:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ef42348f-5faa-4802-8544-937933a54421

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/193258/
Detection(s):
SecuriteInfo.com.Crypt5.BLLV.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1b3ecc92-02e0-4e4f-980d-53b5f28f8d13
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/861247
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3da6e1803b8aa6a2b726dd0517c38fc355b1aa4c97de638d860b6eac203794b/
Threat name:
Win32.Trojan.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 20:02:05 UTC
AV detection:
39 of 44 (88.64%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpng4gadxcvguk3snxifc7by7q2vwgvezf66mogymc3ovqqdpffq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
034a7bd6fc31e1d28e47907f01f671f615772fdeaf0d709158d76a05effbd205
CobaltStrike
13b828a7fc49a88c6674f34a61ab1ba0f353824df1d5d86a572a52ee279c9a87
CobaltStrike
248921c32a2186e7aed2cb802b5e98e6d9b19ea8eff2eba3e37ff3398af441bb
CobaltStrike
5a77ad98439861e4a908504115c47071553d6e6e94ef79af02fc4d0337086ac8
CobaltStrike
62a1353464b1687476a6d648161e8f9af6c6d26c7ebee0cbb3b0eacb8e5a9fc4
CobaltStrike
6fff5bed3149cccf6836a0c7345eda9a00eb3d010f4e9717793d137b4c33ead9
CobaltStrike
a3825f94837f9035ad00613e6aeabc18a201cdffb90d85fbaa848f64462d4f31
CobaltStrike
aa9838d662bdea0874c2c4f4b83f6bd8c970c7799734ac409bcc58095d2cb714
CobaltStrike
de1ec20f816bc6054721b2fba2fb3d9d713d8a17838035e518542e95749e9064
CobaltStrike
eaa3ee2a7f1b96d3c7502d7705fcb5c44b9381e393bdbb80d72971011a9747cf
CobaltStrike
+ 486 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:1091009874 backdoor trojan
Link:
https://tria.ge/reports/210929-yr4r8afgb4/
Behaviour
Modifies system certificate store
Cobaltstrike
Malware Config
C2 Extraction:
http://api.yelp.com:443/v3/links/ping-centre
Unpacked files
SH256 hash:
fb6cb3a0a599bbb31640e852eb2a08e41e280b825eae3a31e07d8ea023d0c110
MD5 hash:
a26991833d8414c0d154f2abe266c168
SHA1 hash:
a7ba1c2a003dc06b0496ae1028508e849de2de0a
Link:
https://www.unpac.me/results/4b40ef68-9592-48a0-b5bc-8967d902c341/
SH256 hash:
b3da6e1803b8aa6a2b726dd0517c38fc355b1aa4c97de638d860b6eac203794b
MD5 hash:
1eb05a1af93579718f2f7389db23337f
SHA1 hash:
b7aaa66fb248ecd8bf833c43e9d99f859f1b97c4
Link:
https://www.unpac.me/results/4b40ef68-9592-48a0-b5bc-8967d902c341/
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b3da6e1803b8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3da6e1803b8aa6a2b726dd0517c38fc355b1aa4c97de638d860b6eac203794b

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_XORed_x86
Create hunting rule
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:Cobaltbaltstrike_strike_Payload_XORed
Create hunting rule
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:HKTL_Unlicensed_CobaltStrike_EICAR_Jul18_5
Create hunting rule
Author:Florian Roth
Description:Detects strings found in CobaltStrike shellcode
Reference:https://researchcenter.paloaltonetworks.com/2018/07/unit42-new-threat-actor-group-darkhydrus-targets-middle-east-government/
Rule name:HKTL_Unlicensed_CobaltStrike_EICAR_Jul18_5_RID361D
Create hunting rule
Author:Florian Roth
Description:Detects strings found in malware samples in APT report in DarkHydrus
Reference:https://researchcenter.paloaltonetworks.com/2018/07/unit42-new-threat-actor-group-darkhydrus-targets-middle-east-government/

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/193258/

Comments