MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbb595e6f3053adb3b49f0e29a045a20682142086277bde01b9d498a809767c3. 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: 12


Intelligence 12 IOCs YARA 29 File information Comments

SHA256 hash: dbb595e6f3053adb3b49f0e29a045a20682142086277bde01b9d498a809767c3
SHA3-384 hash: bc742bddf52b3e4b2b1f70208f96f0a0c140fac1340ca73553bc78229877b758afea6df0eda6f4a5bdd7c1f82e5aa91e
SHA1 hash: d6e331bc2a1c3cd753e60add2eb0518f0b81aebc
MD5 hash: 3323caab86076c122532d5485106ead9
humanhash: artist-mars-football-winner
File name:dbb595e6f3053adb3b49f0e29a045a20682142086277bde01b9d498a809767c3.exe
Download: download sample
Signature CobaltStrike
File size:308'736 bytes
First seen:2023-07-16 09:52:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3dc6f4eb746aeda0bc22bdb257ef909d (1 x CobaltStrike)
ssdeep 3072:cEfDJBzT4mUfzMb6SbIZZn3O9JanIdxtkpitddbT0hsVKGOKsuWoZ:cE4mUfzMGSbgZ3O9Jalp6XHh
Threatray 427 similar samples on MalwareBazaar
TLSH T1DF648FC67A1C69B7FDD161304083AD0C7A6CBF93BA2C369F358EF2546833E548996E05
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)
File icon (PE):PE icon
dhash icon 59a88d8c6a4a0118 (9 x CobaltStrike, 3 x PureCrypter, 1 x RemcosRAT)
Reporter obfusor
Tags:Cobalt Strike exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
347
Origin country :
HK HK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dbb595e6f3053adb3b49f0e29a045a20682142086277bde01b9d498a809767c3.exe
Verdict:
No threats detected
Analysis date:
2023-07-16 09:53:53 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cobalt greyware obfuscated
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
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Malicious sample detected (through community Yara rule)
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2023-07-16 09:53:05 UTC
File Type:
PE+ (Exe)
Extracted files:
36
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:1234567890 backdoor trojan
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Cobaltstrike
Malware Config
C2 Extraction:
http://service-5xhfsa5m-1258216230.nj.apigw.tencentcs.com:443/api/x
Unpacked files
SH256 hash:
dbb595e6f3053adb3b49f0e29a045a20682142086277bde01b9d498a809767c3
MD5 hash:
3323caab86076c122532d5485106ead9
SHA1 hash:
d6e331bc2a1c3cd753e60add2eb0518f0b81aebc
Malware family:
CobaltStrike
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Cobaltbaltstrike_Beacon_x64
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:CobaltStrikeBeacon
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_MZ_Launcher
Author:yara@s3c.za.net
Description:Detects CobaltStrike MZ header ReflectiveLoader launcher
Rule name:CobaltStrike_Sleep_Decoder_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
Rule name:CobaltStrike_Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/BeaconLoader.VA.x64.o (VirtualAlloc) 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_Sleeve_Beacon_x64_v4_4_v_4_5_and_v4_6
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/beacon.x64.dll Versions 4.4 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__Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6
Author:gssincla@google.com
Rule name:CobaltStrike__Sleeve_Beacon_x64_v4_4_v_4_5_and_v4_6
Author:gssincla@google.com
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:HKTL_CobaltStrike_Beacon_4_2_Decrypt
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
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
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
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
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:malware_CobaltStrike_v3v4
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
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
Author:Willi Ballenthin
Rule name:ReflectiveLoader
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
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:Trojan_Raw_Generic_4
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:Windows_Trojan_CobaltStrike_1787eef5
Author:Elastic Security
Description:CS shellcode variants
Rule name:Windows_Trojan_CobaltStrike_663fc95d
Author:Elastic Security
Description:Identifies CobaltStrike via unidentified function code
Rule name:Windows_Trojan_CobaltStrike_b54b94ac
Description:Rule for beacon sleep obfuscation routine
Rule name:Windows_Trojan_CobaltStrike_ee756db7
Author:Elastic Security
Description:Attempts to detect Cobalt Strike based on strings found in BEACON
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
Description:Rule for beacon reflective loader
Rule name:win_cobalt_strike_auto
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.

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