MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc. 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: 15


Intelligence 15 IOCs YARA 49 File information Comments
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SHA256 hash: e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc
SHA3-384 hash: 9401509babea3c40822b81f8a34c4745f0692f08b75f230d5d0ba5f2f1301ce46faa7be81c005861e71a2e6654486160
SHA1 hash: a89bb148add8feaa7722fb050bb6b60a1ba00fa3
MD5 hash: 3e96c0115aeac2b89d926f326079fdc0
humanhash: white-michigan-blue-video
File name:c_shlellcode.exe
Download: download sample
Signature CobaltStrike
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File size:5'593'088 bytes
First seen:2025-01-08 10:04:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ac3973a69755a7d751cb90349483f62d (1 x CobaltStrike)
ssdeep 98304:Opmw8u6dz3TnvMMMMMMSQMMMMMMqiMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMh:Opz8LJj
TLSH T18546F5218E3F61E0E56A3F72C8B7A46FC71E6F609356D4D16BE434870637A62E15CCA0
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter kafan_shengui
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
497
Origin country :
US US
Vendor Threat Intelligence
Malware family:
cobaltstrike
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ID:
1
File name:
c_shlellcode.exe
Verdict:
Malicious activity
Analysis date:
2025-01-08 10:08:10 UTC
Tags:
api-base64 cobaltstrike
Link:
https://app.any.run/tasks/8d5dc3ad-d0fa-491d-89c9-0cd87adf456b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Dump.Generic.Beacon.Marte.B.30DDB166.15875.20553.UNOFFICIAL
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Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=677e4edac029bd73f286af99
Tags:
cobaltstrike emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Connection attempt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint microsoft_visual_cc
Link:
https://www.filescan.io/uploads/677e4dcfaa636f963a1292b3/reports/d8902aa2-c44c-4678-994a-779721446f40/overview
Verdict:
Malicious
Labled as:
Dump:Generic.Beacon.Marte.B
Link:
https://www.hybrid-analysis.com/sample/e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8ec65da2-0f4c-424d-bde9-2c1908467264
Result
Threat name:
CobaltStrike
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1585850
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc/
Threat name:
Win64.Trojan.CobaltStrike
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Status:
Malicious
First seen:
2025-01-08 10:05:06 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=43hr3xeiz5nqbtbbatgq3g4hxspwsz2fstjfnxgd3kpmzfo2c36a._file
Verdict:
malicious
Label(s):
cobaltstrike
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Similar samples:
error
CobaltStrike
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250108-l4g3rsxngk/
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5225c899-1fc6-4637-bf38-d6c64f270e0c
Unpacked files
SH256 hash:
e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc
MD5 hash:
3e96c0115aeac2b89d926f326079fdc0
SHA1 hash:
a89bb148add8feaa7722fb050bb6b60a1ba00fa3
Link:
https://www.unpac.me/results/d946fca8-211a-46e6-9659-1df3f9aea812/
Malware family:
CobaltStrike
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e6cf1ddc88cf/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/e6cf1ddc88cf5b00cc2104cd0d9b87bc9f69674594d256dcc3da9ecc95da16fc

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
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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
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Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:Cobaltstrike1
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Author:Ahmet Payaslioglu | Binalyze DFIR LAB
Description:Cobalt Strike Detection
Rule name:Cobaltstrike2
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Author:Ahmet Payaslioglu | Binalyze DFIR LAB
Description:Cobalt Strike Detection
Rule name:CobaltStrikeBeacon
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Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
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Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_MZ_Launcher
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Author:yara@s3c.za.net
Description:Detects CobaltStrike MZ header ReflectiveLoader launcher
Rule name:CobaltStrike_ReflectiveLoader_RID3297
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Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike)
Reference:http://www.clearskysec.com/tulip
Rule name:CobaltStrike_Sleeve_BeaconLoader_x64_o_v4_3_v4_4_v4_5_and_v4_6
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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
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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
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Author:gssincla@google.com
Rule name:cobalt_strike_beacon_decrypted
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Author:0x0d4y
Description:This rule detects cobalt strike decrypted beacons.
Rule name:cobalt_strike_beacon_detected
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Author:0x0d4y
Description:This rule detects cobalt strike beacons.
Rule name:crime_win32_csbeacon_1
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Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_powershell
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Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:Detect_PowerShell_Obfuscation
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Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:HKTL_CobaltStrike_Beacon_Strings
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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
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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
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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
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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
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Author:ditekSHen
Description:Detects Reflective DLL injection artifacts
Rule name:Leviathan_CobaltStrike_Sample_1
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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
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Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:malware_CobaltStrike_v3v4
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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
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Author:Florian Roth (Nextron Systems)
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALWARE_Win_CobaltStrike
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Author:ditekSHen
Description:CobaltStrike payload
Rule name:MALW_cobaltrike
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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
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Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
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Rule name:PowerShell_Susp_Parameter_Combo_RID336F
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Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
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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_Oct19
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
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Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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
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Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Detects Cobalt Strike payload typically loaded into memory via PowerShell.
Rule name:WiltedTulip_ReflectiveLoader
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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
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Author:Elastic Security
Description:CS shellcode variants
Rule name:Windows_Trojan_CobaltStrike_3dc22d14
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Author:Elastic Security
Rule name:Windows_Trojan_CobaltStrike_663fc95d
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Author:Elastic Security
Description:Identifies CobaltStrike via unidentified function code
Rule name:Windows_Trojan_CobaltStrike_ee756db7
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Author:Elastic Security
Description:Attempts to detect Cobalt Strike based on strings found in BEACON
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
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Author:Elastic Security
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.

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
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW

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