MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfef4e61370835dd783be4e4f6787f426f24956de4368026149157e9941cef22. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cfef4e61370835dd783be4e4f6787f426f24956de4368026149157e9941cef22
SHA3-384 hash: addafdf7bf1fd9f4b26cb33f5a7902dbf6c2cdde855f366bc7f25fb00aef203d20b5c448436f4207ca74ad2b863170a6
SHA1 hash: 3dc2364f17581a843827771f15ea4880ddcaf701
MD5 hash: a05337f68d05714b629731eab7dc285a
humanhash: table-virginia-sink-low
File name:a05337f68d05714b629731eab7dc285a.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:224'256 bytes
First seen:2021-08-14 06:08:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 829da329ce140d873b4a8bde2cbfaa7e (259 x CobaltStrike)
ssdeep 6144:908kyqoXBNasKlYRI5YvAKRPXgB9pxc77MQ:908kyqoXBdKmm5YhXgBVv
Threatray 361 similar samples on MalwareBazaar
TLSH T1D924E07242440B6FF8B0FBB4A57045F27E2AA9877D949437B12BAA46F78D0318447F2D
Reporter abuse_ch
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
535
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cobaltstrike_shellcode.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-10 18:32:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/29bdee34-55fa-418c-9383-069ea24d70c8

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/179139/
Detection(s):
SecuriteInfo.com.Crypt5.BLLV.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Sending a UDP request
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/357b9277-d7a1-4fa4-b3e3-c86ceec25b39
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/832765
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/cfef4e61370835dd783be4e4f6787f426f24956de4368026149157e9941cef22/
Threat name:
Win32.Trojan.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2021-08-11 05:39:36 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z7xu4yjxba2526b34tspm6d7ijxsjfln4q3iajqusfl6tfa454ra._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
023cff6801f8909f19d3c66e3ad286f6bb84a6b4f518bfac3d44026318fa8775
CobaltStrike
064924bf49bd1809d90df0169eb6e354ce8f5b88100bb39b89460c480121fbeb
CobaltStrike
0cc7d4ede78c40918f18f2a409fab83fbce74afe666a558c1e18109204df0a0c
CobaltStrike
1c5198e6e4f9eb17e35ac43f1554cf88a1602c1fa6afa61ee9c0b845329dec99
CobaltStrike
23537b7760c3db032fe5a8442a45d376a3ac9738445d0292c984e6b6ce5cf27b
CobaltStrike
2df05a70d3ce646285a0f888df15064b4e73034b67e06d9a4f4da680ed62e926
CobaltStrike
9bca97c3be5d93a9d10b1f1ed2a22db889e866e0ae5046ca7079c5c92eb09982
CobaltStrike
c7a9310c100613e33934b5a510ab826a1a776386bb73540d346b70f37ed0a2a4
CobaltStrike
eefecfb998ba82c76a44e86923d550d1c2d2cf24ea5b8b77ff8b25ed7d5d1c7e
CobaltStrike
+ 351 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor suricata trojan
Link:
https://tria.ge/reports/210814-jv3rrt24na/
Behaviour
Cobaltstrike
suricata: ET MALWARE Cobalt Strike Malleable C2 Profile (__session__id Cookie)
Malware Config
C2 Extraction:
http://gasonz.com:443/ku.css
Unpacked files
SH256 hash:
c35448a57d285ed31819dbbb1d8b945adf9552b793afb30b733de36894bf46ba
MD5 hash:
25c0c76e25d3e3004be13783db9328a2
SHA1 hash:
b3b0c92c2a9ff66f5a19aba732c07e53b813a252
Link:
https://www.unpac.me/results/287e52a2-f9b7-45f4-bb90-94fc80fe0087/
SH256 hash:
cfef4e61370835dd783be4e4f6787f426f24956de4368026149157e9941cef22
MD5 hash:
a05337f68d05714b629731eab7dc285a
SHA1 hash:
3dc2364f17581a843827771f15ea4880ddcaf701
Link:
https://www.unpac.me/results/287e52a2-f9b7-45f4-bb90-94fc80fe0087/
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/cfef4e613708/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/cfef4e61370835dd783be4e4f6787f426f24956de4368026149157e9941cef22

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/

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/179139/

Comments