MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67
SHA3-384 hash: aa414f95ba0a0adfb4f083ab44213659f10f8decbef250c9dfccbccf5b055506e3c4c53451062b1fae7c5188619d2335
SHA1 hash: d984efe196cc4cb9a375d976cb35f9a7abaca643
MD5 hash: 144f7bb72738bfcc697c1dc4be14274e
humanhash: twenty-wyoming-vermont-fifteen
File name:b.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:392'192 bytes
First seen:2025-09-01 11:38:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9133e54115603c0107b8f985598440d0 (34 x CobaltStrike, 13 x Cobalt Strike)
ssdeep 6144:0ruEkklb9CKuggW05QE1KrAPk+CLGfbKL6I0GJX+7XPX7VC9ND1hbO7BSQHO:0uLiJ7gW0PxPkSzKL6I0kXOCPD15OIQ
TLSH T17F84AD9A61221AC7E78D74BC9ED56B1CC5837B73E1A641D460BEF0F13F264AD281EB10
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10522/11/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Joker
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
cobaltstrike
Create hunting rule
ID:
1
File name:
b.exe
Verdict:
Malicious activity
Analysis date:
2025-09-01 11:40:08 UTC
Tags:
cobaltstrike
Link:
https://app.any.run/tasks/8c4df674-3486-49ae-8c92-da717082b0a2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/24499/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b585feeb163e0ec1840211
Tags:
cobaltstrike emotet
Result
Verdict:
Clean
Maliciousness:

Behaviour
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug cobalt cobaltstrike mingw packed windows
Link:
https://www.filescan.io/uploads/68b585ff39a6221faa78a596/reports/a25a084b-063f-46f2-87dc-b4fb7e595b45/overview
Verdict:
Malicious
Labled as:
Dump:Generic.Cobaltstrike.C
Link:
https://www.hybrid-analysis.com/sample/fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-01T09:19:00Z UTC
Last seen:
2025-09-01T09:19:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67/results?tab=lookup
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/afc3c543-8d66-4fdc-9c41-633cf24ae15e
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/144f7bb72738bfcc697c1dc4be14274e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67/
Threat name:
Win64.Backdoor.CobaltStrike
Create hunting rule
Status:
Malicious
First seen:
2025-09-01 11:39:39 UTC
File Type:
PE+ (Exe)
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7mc2bsayto5u3pjf4yc33c3n3j2tfmkmlv3lhtq5u4t4lb6ahntq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
error
CobaltStrike
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250901-nslmxsvlv6/
Verdict:
Malicious
Tags:
red_team_tool cobalt_strike Win.Countermeasure.LoaderWinGeneric-9804845-2 c2
YARA:
win_cobaltstrike_pipe_strings_nov_2023 Windows_Trojan_CobaltStrike_7f8da98a
Link:
https://app.threat.zone/submission/556d2c6e-355a-470a-ba9d-41bc5ea48742
Unpacked files
SH256 hash:
fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67
MD5 hash:
144f7bb72738bfcc697c1dc4be14274e
SHA1 hash:
d984efe196cc4cb9a375d976cb35f9a7abaca643
Link:
https://www.unpac.me/results/5d252ccf-60fd-44ca-8b65-b68a533378d3/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fb05a0c8189b/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/fb05a0c8189bbb4dbd25e605bd8b6dda7532b14c5d76b3ce1da727c587c03b67

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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.

Cape
Cape
https://www.capesandbox.com/analysis/24499/

Comments