MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062. 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 24 File information Comments
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SHA256 hash: ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062
SHA3-384 hash: 87e5dbd450adf36eb25aeaa40903d7d5ee8cac0059b8139a0dc39348da5cf48db20133ad1eefcb028e6358309ba9dc97
SHA1 hash: 2468e39d7bd464cb9b5bec8e58b4187ee2526ebc
MD5 hash: a2856ce060e888195419e85f39df2bf4
humanhash: louisiana-berlin-table-sodium
File name:a2856ce060e888195419e85f39df2bf4.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:663'040 bytes
First seen:2023-04-16 10:55:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 771de924d12a6660b6864063fe19ec51 (1 x CobaltStrike)
ssdeep 6144:r2jjeluWDj/7KlvOZ9Dw3GnWrpDO9KUYJsaAHjEm7dQmyML8qHt4Ew1AvNkECp+r:S3eDjulWZxw3ZSaHmJQmZ0YVkPy8Gr6
Threatray 339 similar samples on MalwareBazaar
TLSH T130E49C45B6A002E1D06791F8C9754F02FBE274394FE0B24F93AC36A95F27F61592AB1C
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)
Reporter abuse_ch
Tags:CobaltStrike exe


Avatar
abuse_ch
CobaltStrike C2:
143.92.58.97:443

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a2856ce060e888195419e85f39df2bf4.exe
Verdict:
No threats detected
Analysis date:
2023-04-16 10:58:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7c6dfa6d-ebe8-4a91-aaae-4f1124a4f251

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/382609/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.66416006.5587.2870.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/643bd4448cbb8f4be303f31c/reports/4d18f0ab-0107-4b13-a5d2-ae4b76047afb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ee71e9c7-1b10-4fb7-a1f2-1646e067e4f2
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1214618
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/ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062/
Threat name:
Win64.Backdoor.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-04-12 20:40:29 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
9 of 37 (24.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54kdsoluwydugxnytxgsds76wugrjgep5scxbtytwln7xvyz4bra._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
0461700051e86d2c7bb96b3151db07507a6cb7c05d235e39b001823f70f8b130
CobaltStrike
080c2647fb26ac8576014a21591465eba5b0ee03475f70e95bc3a4caa8d3642e
CobaltStrike
39bcc68556caf5f83fc73d53b691de3d1017d2add92da447d357bac2f86cc7d0
CobaltStrike
6cc8e13f66166e615a847f9444a0258b0e7a01fb8e607c49c482b2b4d50cd829
CobaltStrike
7920fb3873012f1abef8c2abfb905e53317595874985f24b23fb318b54b1e243
CobaltStrike
864c5339ddc1ad5df17d454c023d0f34a2bfebe76a19314f552d72123a845863
CobaltStrike
d3e1d4d035face95893b1421844c6896c5fed730b919f7f44b9590ee22c73761
CobaltStrike
da745a98fcd59b61e6365661a809bc8abf2c029863cd6ade3c4ccb2115cd0ee2
CobaltStrike
e8da0c4416f4353aad4620b5a83ff84d6d8b9b8a748fdbe96d8a4d02a4a1a03c
CobaltStrike
+ 329 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor trojan
Link:
https://tria.ge/reports/230416-m1ph4shh65/
Behaviour
Suspicious behavior: EnumeratesProcesses
Cobaltstrike
Malware Config
C2 Extraction:
http://143.92.58.97:443/MicrosoftUpdate/ShellEx/KB242742/default.aspx
Unpacked files
SH256 hash:
ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062
MD5 hash:
a2856ce060e888195419e85f39df2bf4
SHA1 hash:
2468e39d7bd464cb9b5bec8e58b4187ee2526ebc
Link:
https://www.unpac.me/results/0ac281b8-7071-43c3-8114-a1286fa8007b/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef14393974b6/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/ef14393974b607435db89dcd21cbfeb50d14988fec8570cf13b2dbfbd719e062

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:CobaltStrike_Sleep_Decoder_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
Rule name:CobaltStrike_Sleeve_Beacon_x64_v4_1_and_v_4_2
Create hunting rule
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/beacon.x64.dll Versions 4.1 and 4.2
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike__Sleeve_Beacon_x64_v4_1_and_v_4_2
Create hunting rule
Author:gssincla@google.com
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CS_beacon
Create hunting rule
Author:Etienne Maynier tek@randhome.io
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_CobaltStrike_SleepMask_Jul22
Create hunting rule
Author:CodeX
Description:Detects static bytes in Cobalt Strike 4.5 sleep mask function that are not obfuscated
Reference:https://codex-7.gitbook.io/codexs-terminal-window/blue-team/detecting-cobalt-strike/sleep-mask-kit-iocs
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_SUSPICIOUS_ReflectiveLoader
Create hunting rule
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
Rule name:malware_CobaltStrike_v3v4
Create hunting rule
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
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:ReflectiveLoader
Create hunting rule
Author:Florian Roth (Nextron Systems)
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 (Nextron Systems)
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
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:Windows_Trojan_CobaltStrike_1787eef5
Create hunting rule
Author:Elastic Security
Description:CS shellcode variants
Rule name:Windows_Trojan_CobaltStrike_663fc95d
Create hunting rule
Author:Elastic Security
Description:Identifies CobaltStrike via unidentified function code
Rule name:Windows_Trojan_CobaltStrike_ee756db7
Create hunting rule
Author:Elastic Security
Description:Attempts to detect Cobalt Strike based on strings found in BEACON
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/382609/

Comments