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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5. 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: 19


Intelligence 19 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5
SHA3-384 hash: 81bf9cf3212c98c9902402813d9bb6dc0b808abd750b4ac36083b1c61ed9a4958763834866fa997b8b656890e265988f
SHA1 hash: 98c5b9c42614ef33ac0d3940ebaaf00d12103e5c
MD5 hash: 909b8593ea101e2e90f4a155a65ae173
humanhash: equal-enemy-double-vegan
File name:192-34-56-44-32.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:284'672 bytes
First seen:2024-08-02 02:46:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dc25ee78e2ef4d36faa0badf1e7461c9 (118 x CobaltStrike, 6 x Cobalt Strike)
ssdeep 3072:hRg7+HlwI/pvYyCZTTlQV94AaXNl2ltGwUrpUpoUXF6l3JPmKBvZOm3L/vhj3ST:hRg+Fn/EZTTcogltgp2dXghJPtOAL/v
TLSH T15E54D069FF517B77D603487B922BB9FA330702410B0E09DC75589A5EA080F6F2FD61A9
TrID 37.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
12.7% (.EXE) Win64 Executable (generic) (10523/12/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter CaSO44444
Tags:Cobalt Strike exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
384
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
cobaltstrike
Create hunting rule
ID:
1
File name:
192-34-56-44-32.exe
Verdict:
Malicious activity
Analysis date:
2024-08-02 02:48:40 UTC
Tags:
cobaltstrike
Link:
https://app.any.run/tasks/3d1e443e-305b-4c4f-aa3f-d0d78c088cdf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ac48aab7a04efc74399c6f
Tags:
Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug cobalt config-extracted mingw
Link:
https://www.filescan.io/uploads/66ac48a68f66298c01f50632/reports/ba59f88c-3b64-466b-96eb-8f04a9bc7a8c/overview
Verdict:
Malicious
Labled as:
Trojan.CobaltStrike
Link:
https://www.hybrid-analysis.com/sample/b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/48baf053-5384-4db0-9712-c4e7ec6cadb2
Result
Threat name:
CobaltStrike, ReflectiveLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1486420
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Yara detected Powershell download and execute
Yara detected ReflectiveLoader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5
Detection:
cobaltstrike
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5/
Threat name:
Win32.Trojan.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2024-08-02 02:47:05 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w3uk2fxsql7svj57qgvfcxzug24u2chp65r3obmb5ogvzyzao7sq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:100000 backdoor discovery trojan
Link:
https://tria.ge/reports/240802-c9v25sweqd/
Behaviour
System Location Discovery: System Language Discovery
Cobaltstrike
Malware Config
C2 Extraction:
http://192.34.56.44:80/dpixel
Malware Family:
n/a
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4f6cb12d-d0d4-4998-8e7c-8de311050792
Unpacked files
SH256 hash:
0ea0797a3692225969140330946fc250ba6871dc778c7eafbd6edd70ffe66554
MD5 hash:
01feb53a301ea971fd963a573d5b3db1
SHA1 hash:
345310d0884c805a8c115d2f639b40bdcd1b97dc
Detections:
cobaltstrike_xor_config
Create hunting rule
win_cobalt_strike_auto
Create hunting rule
win_samsam_auto
Create hunting rule
CobaltStrike_Sleeve_Beacon_Dll_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
CS_beacon
Create hunting rule
HKTL_Win_CobaltStrike
Create hunting rule
ReflectiveLoader
Create hunting rule
HKTL_Meterpreter_inMemory
Create hunting rule
Malware_QA_vqgk
Create hunting rule
WiltedTulip_ReflectiveLoader
Create hunting rule
Leviathan_CobaltStrike_Sample_1
Create hunting rule
Beacon_K5om
Create hunting rule
PowerShell_Susp_Parameter_Combo
Create hunting rule
CobaltStrike_Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
CobaltStrike_C2_Encoded_XOR_Config_Indicator
Create hunting rule
CobaltStrike_Sleeve_Beacon_Dll_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
HKTL_CobaltStrike_Beacon_Strings
Create hunting rule
hacktool_windows_cobaltstrike_beacon
Create hunting rule
CobaltStrike_Unmodifed_Beacon
Create hunting rule
CobaltStrike_Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
SUSP_XORed_Mozilla
Create hunting rule
Link:
https://www.unpac.me/results/d5602858-d70a-43f5-9e12-32734822e948/
SH256 hash:
b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5
MD5 hash:
909b8593ea101e2e90f4a155a65ae173
SHA1 hash:
98c5b9c42614ef33ac0d3940ebaaf00d12103e5c
Detections:
HKTL_Imphashes_Aug22_1
Create hunting rule
CobaltStrike_Resources_Artifact32_v3_14_to_v4_x
Create hunting rule
CobaltStrike_Resources_Artifact32_v3_14_to_v4_x
Create hunting rule
hacktool_windows_cobaltstrike_beacon
Create hunting rule
Link:
https://www.unpac.me/results/d5602858-d70a-43f5-9e12-32734822e948/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b6e8ad16f282/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/b6e8ad16f282ff2aa7bf81aa515f3436b94d08eff763b70581eb8d5ce32077e5

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:CobaltStrike_Resources_Artifact32_v3_14_to_v4_x
Create hunting rule
Author:gssincla@google.com
Description:Cobalt Strike's resources/artifact32{.dll,.exe,big.exe,big.dll,bigsvc.exe} signature for versions 3.14 to 4.x and resources/artifact32svc.exe for 3.14 to 4.x and resources/artifact32uac.dll for v3.14 and v4.0
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike__Resources_Artifact32_v3_14_to_v4_x
Create hunting rule
Author:gssincla@google.com
Rule name:HKTL_Imphashes_Aug22_1
Create hunting rule
Author:Florian Roth
Description:Detects different hacktools based on their imphash
Reference:Internal Research
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Windows_Trojan_CobaltStrike_1787eef5
Create hunting rule
Author:Elastic Security
Description:CS shellcode variants
Rule name:Windows_Trojan_CobaltStrike_7f8da98a
Create hunting rule
Author:Elastic Security
Rule name:win_cobaltstrike_pipe_strings_nov_2023
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects default strings related to cobalt strike named pipes

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments