MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c26464d290b7a98e0be6ca6f5b4c2379b554b06a67b1a71a2b31c7847347f03. 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: 14


Intelligence 14 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2c26464d290b7a98e0be6ca6f5b4c2379b554b06a67b1a71a2b31c7847347f03
SHA3-384 hash: 806c3eaf90bf85354cea7e6bcb893f68815336b4eabbe9f33ec43b899dc63aa4aa5a564222f6612f3d928f0ad141f02c
SHA1 hash: df4b7cc99fe961e322b6a5147dfa272ed9c4eddb
MD5 hash: d7fdc47ec8a7af60c901a3a2a89434dd
humanhash: september-cardinal-double-lion
File name:cobalt.dll
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:265'728 bytes
First seen:2022-08-23 16:10:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e060daefaf7ff6c7401014aa587bc143 (1 x CobaltStrike)
ssdeep 6144:fJqVG5d1IpMyibgkTZI6jHID90am30BXRH/:f3d6tevoxW0BXd
TLSH T193445A4533A07CF5E8A7D63AC6564617EFF2BC624770D70F0364166A0F237A1A22E762
TrID 99.5% (.EXE) DOS Executable Generic (2000/1)
0.4% (.TAR) TAR - Tape ARchive (hard link) (10/3)
Reporter N3utralZ0ne
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
391
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cobalt.dll
Verdict:
No threats detected
Analysis date:
2022-08-23 16:11:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2f1ed4d7-33fc-423b-bd75-53d673ff6606

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300649/
Detection(s):
Win.Trojan.Cobaltstrike-9955743-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/29842/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware mask meterpreter obfuscated
Link:
https://www.filescan.io/uploads/6304fc2e05ef0c24e4209a1f/reports/7b6cc8f1-8298-46f5-9de8-ad06511f737f/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:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/860d592c-15f1-47b5-9756-2bf6a7ff2e01
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1056477
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 688993 Sample: cobalt.dll Startdate: 23/08/2022 Architecture: WINDOWS Score: 100 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Yara detected CobaltStrike 2->32 34 2 other signatures 2->34 8 loaddll64.exe 1 2->8         started        process3 process4 10 rundll32.exe 8->10         started        13 cmd.exe 1 8->13         started        15 rundll32.exe 8->15         started        signatures5 36 Contains functionality to detect sleep reduction / modifications 10->36 17 WerFault.exe 20 9 10->17         started        20 rundll32.exe 13->20         started        22 WerFault.exe 9 15->22         started        process6 dnsIp7 26 192.168.2.1 unknown unknown 17->26 24 WerFault.exe 9 20->24         started        process8
Detection:
cobaltstrike
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2c26464d290b7a98e0be6ca6f5b4c2379b554b06a67b1a71a2b31c7847347f03/
Threat name:
Win64.Trojan.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2022-08-23 16:11:08 UTC
File Type:
PE+ (Dll)
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fqtemtjjbn5jryf6nstplngcg6nvksyguz5ru4ncwmohqrzup4bq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike
Link:
https://tria.ge/reports/220823-tmx2nahef2/
Behaviour
Program crash
Unpacked files
SH256 hash:
2c26464d290b7a98e0be6ca6f5b4c2379b554b06a67b1a71a2b31c7847347f03
MD5 hash:
d7fdc47ec8a7af60c901a3a2a89434dd
SHA1 hash:
df4b7cc99fe961e322b6a5147dfa272ed9c4eddb
Detections:
win_cobalt_strike_auto
Create hunting rule
cobaltstrike_xor_config
Create hunting rule
Link:
https://www.unpac.me/results/2db13c5a-08ff-4781-82fd-6d731dd52761/
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/2c26464d290b7a98e0be6ca6f5b4c2379b554b06a67b1a71a2b31c7847347f03

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:CS_beacon
Create hunting rule
Author:Etienne Maynier tek@randhome.io
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: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
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 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:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
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/300649/

Comments