MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6f6aa46f887ad38704b33ecd3a4644050ed9c659785fbcb18241f6bbb38597b. 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



Cobalt Strike


Vendor detections: 17


Intelligence 17 IOCs YARA 21 File information Comments

SHA256 hash: d6f6aa46f887ad38704b33ecd3a4644050ed9c659785fbcb18241f6bbb38597b
SHA3-384 hash: 92a2e4bc581da977be390209a966a671d7433d7d47393ba87a5d25bff0fd8a2ca70b46e2fb2972fdf31ea14fc0fcb470
SHA1 hash: c204f14cb0eb9c22553b91e2db29790452ccefba
MD5 hash: e0e130fa76c8825bd532592d67b3ee06
humanhash: chicken-quiet-iowa-utah
File name:servlets-examples.exe
Download: download sample
Signature Cobalt Strike
File size:448'512 bytes
First seen:2024-12-01 10:57:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a30409d5966de2b8ade01d9fc3f3523d (1 x Cobalt Strike)
ssdeep 6144:EOz0Fl/BwDAeTSHH1y/4d0QkBYdk0gPpQ6qVptkMVjnTjZjPwN+6nhyEWH+mvFP4:E/wLuutf0gPpQXrPVDTChyEWhFUYm
Threatray 371 similar samples on MalwareBazaar
TLSH T14994BF16F31179B8E41AC23CC2675F54AEB27C860732DAEB2185C1397DA5BF60E78358
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter kafan_shengui
Tags:Cobalt Strike CobaltStrike exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
554
Origin country :
US US
Vendor Threat Intelligence
Malware family:
cobaltstrike
ID:
1
File name:
servlets-examples.exe
Verdict:
Malicious activity
Analysis date:
2024-12-01 10:58:34 UTC
Tags:
cobaltstrike rust

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
cobaltstrike cobalt
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm cobalt cobalt cobaltstrike config-extracted exploit microsoft_visual_cc packed rust windows
Malware family:
RustyStealer
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj
Score:
100 / 100
Signature
AI detected suspicious sample
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:
Threat name:
Win64.Trojan.CobaltStrike
Status:
Malicious
First seen:
2024-12-01 10:58:12 UTC
File Type:
PE+ (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Verdict:
Malicious
Tags:
red_team_tool cobalt_strike
YARA:
malware_CobaltStrike_v3v4 CobaltStrikeBeacon trojan_win_cobaltstrike Windows_Trojan_CobaltStrike_f0b627fc Windows_Trojan_CobaltStrike_3dc22d14 HKTL_Cobaltstrike_Beacon_Strings
Unpacked files
SH256 hash:
d6f6aa46f887ad38704b33ecd3a4644050ed9c659785fbcb18241f6bbb38597b
MD5 hash:
e0e130fa76c8825bd532592d67b3ee06
SHA1 hash:
c204f14cb0eb9c22553b91e2db29790452ccefba
Detections:
cobaltstrike_xor_config win_cobalt_strike_auto
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: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:cobalt_strike_beacon_detected
Author:0x0d4y
Description:This rule detects cobalt strike beacons.
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_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:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Rustyloader_mem_loose
Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_XORed_Mozilla
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:Windows_Trojan_CobaltStrike_3dc22d14
Author:Elastic Security
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
Description:Rule for beacon reflective loader
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
Author:Elastic Security
Description:Rule for beacon reflective loader

File information


The table below shows additional information about this malware sample such as delivery method and external references.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::GetConsoleMode

Comments