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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c. 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: 16


Intelligence 16 IOCs YARA 40 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c
SHA3-384 hash: dce166de568474306eed5da1df65163b734fc0443ca504657be59f6c7bdd3709f09c11addd251ac3554ab429c95c38fa
SHA1 hash: 331005eb772647d577a25809e13bbaed6fd98de9
MD5 hash: 3aa02a07fdced15af06de0886c39d7af
humanhash: august-three-crazy-bacon
File name:3aa02a07fdced15af06de0886c39d7af.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:7'168 bytes
First seen:2023-07-18 03:40:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 96:Pxyaaa3FBaEJ7Tx+ssYSaFaSgQuYEBsmJnuWhchzlpLzNt:pysaEJmgdgjYEBHnthcnpN
Threatray 162 similar samples on MalwareBazaar
TLSH T1B2E14C5ACBD891B1ECBF0732A893531089B4D6085D6BDB6F29C865077F2F7180E527A1
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:CobaltStrike exe


Avatar
abuse_ch
CobaltStrike C2:
135.125.201.221:443

Intelligence

File Origin
# of uploads :
1
# of downloads :
397
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
meterpreter
Create hunting rule
ID:
1
File name:
3aa02a07fdced15af06de0886c39d7af.exe
Verdict:
Malicious activity
Analysis date:
2023-07-18 03:41:54 UTC
Tags:
meterpreter cobaltstrike
Link:
https://app.any.run/tasks/7e84b5f2-8133-4fa3-899b-3f6424376084

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeStager
Create hunting rule
Link:
https://www.capesandbox.com/analysis/423185/
Detection(s):
Win.Packed.Msilheracles-9982153-0
Create hunting rule

Win.Packed.Msilzilla-9979105-0
Create hunting rule

Win.Packed.Shelm-9986977-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Sending a custom TCP request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/64b609cff3c193545ac627ee/reports/3af7de36-d951-4b6e-9f3c-5c76be552976/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/99c79cf4-81f9-4154-ab8f-33bd95e20679
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1274817
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
cobaltstrike
Create hunting rule
Link:
https://mwdb.cert.pl/sample/93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c/
Threat name:
ByteCode-MSIL.Trojan.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2023-07-15 01:41:00 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=so757xu2f4wltwht75452cqeuh5ogxdoo2jrn5pjche2wfunfu6a._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
0286adc5d78f435af5b04693f2c5deac1878782929be38b839d9b662c7ff9496
CobaltStrike
03825741c04fb75f7bcb5d53d54ccbd0a7c00ebf3f187084e49b0fb95e67b51e
CobaltStrike
25d0bc682d25a43d97a7e010deeb8dfdad80ff9562084333cd6fb99ce8907422
CobaltStrike
a1f6f5619498de33f8241846f9061f7bac532962d34df7966e9f19f4e4e990da
CobaltStrike
c525b74313f951c336ad1074c4c43c447b7cd4d63d8988bb094d193ad2dfe182
CobaltStrike
c9f7a195bd4281bff7f735f8e33e9de76c6867679e0e6a5d978f43bf330512ed
CobaltStrike
f9a940083bfaf1d29e4eff15533ccd1d90b7726017d81f03677332e4857af2ee
CobaltStrike
+ 152 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike backdoor trojan
Link:
https://tria.ge/reports/230718-d8rtrsgb48/
Behaviour
Suspicious use of WriteProcessMemory
Cobaltstrike
Unpacked files
SH256 hash:
93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c
MD5 hash:
3aa02a07fdced15af06de0886c39d7af
SHA1 hash:
331005eb772647d577a25809e13bbaed6fd98de9
Link:
https://www.unpac.me/results/396debcc-6730-48e4-933d-23070162f81a/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/93bfdfde9a2f/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/93bfdfde9a2f2cb9d8f3ff79dd0a04a1fae35c6e769316f5e911c9ab168d2d3c

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:Beacon_K5om
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Meterpreter Beacon - file K5om.dll
Reference:https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html
Rule name:Beacon_K5om_RID2B14
Create hunting rule
Author:Florian Roth
Description:Detects Meterpreter Beacon - file K5om.dll
Reference:https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html
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:Cobaltstrike1
Create hunting rule
Author:Ahmet Payaslioglu | Binalyze DFIR LAB
Description:Cobalt Strike Detection
Rule name:Cobaltstrike2
Create hunting rule
Author:Ahmet Payaslioglu | Binalyze DFIR LAB
Description:Cobalt Strike Detection
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_ReflectiveLoader_RID3297
Create hunting rule
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike)
Reference:http://www.clearskysec.com/tulip
Rule name:CobaltStrike_Sleep_Decoder_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
Rule name:CobaltStrike_Sleeve_BeaconLoader_x64_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/BeaconLoader.x64.o (Base) Versions 4.3 through at least 4.6
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike_Unmodifed_Beacon
Create hunting rule
Author:yara@s3c.za.net
Description:Detects unmodified CobaltStrike beacon DLL
Rule name:CobaltStrike__Sleeve_BeaconLoader_x64_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
Author:gssincla@google.com
Rule name:crime_win32_csbeacon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
Rule name:HKTL_CobaltStrike_Beacon_4_2_Decrypt
Create hunting rule
Author:Elastic
Description:Identifies deobfuscation routine used in Cobalt Strike Beacon DLL version 4.2
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
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:Leviathan_CobaltStrike_Sample_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Leviathan_CobaltStrike_Sample_1_RID3324
Create hunting rule
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
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:Malware_QA_vqgk
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALWARE_Win_CobaltStrike
Create hunting rule
Author:ditekSHen
Description:CobaltStrike payload
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:PowerShell_Susp_Parameter_Combo_RID336F
Create hunting rule
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
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:Trojan_Raw_Generic_4
Create hunting rule
Author:FireEye
Reference:https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html
Rule name:troj_win_cobaltstrike_memoryinject
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Detects Cobalt Strike payload typically loaded into memory via PowerShell.
Rule name:WiltedTulip_ReflectiveLoader
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:http://www.clearskysec.com/tulip
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_b54b94ac
Create hunting rule
Description:Rule for beacon sleep obfuscation routine
Rule name:Windows_Trojan_CobaltStrike_ee756db7
Create hunting rule
Description:Attempts to detect Cobalt Strike based on strings found in BEACON
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
Create hunting rule
Description:Rule for beacon reflective loader
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/423185/

Comments