MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f. 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


Cosmu


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f
SHA3-384 hash: cadc1cadc9a23398cf9c0c57fe1e70b52c9c107fc8fd954529f3c2269f3c0cf48e6cd04b5845a27b5963e1e5546bd7b2
SHA1 hash: 71261752d166e4f83f8b770b6e670e517f41423d
MD5 hash: 94b890bed9e8b9b3b6445ef5ab0a5d66
humanhash: georgia-hot-delaware-saturn
File name:7z.exe
Download: download sample
Signature Cosmu
Create hunting rule
File size:221'185 bytes
First seen:2026-06-05 17:56:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5aa33c577ffd8431ff254de85dee5e7b (45 x Cosmu)
ssdeep 3072:sQXi3tGXRvjxCb5NgXDY7uSlkJcUa7kYQTcqW2NdQQGH/UDhSCUc4aqTBs6:V9lKgzelZNQSBQGH/CSpWqTV
TLSH T14124F1553C93C4B3E0414D7289E58BD18B7F6D03B6E2E15BFF990A474EB029C4BA72A1
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter qemped
Tags:Cosmu exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
ID ID
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f.exe
Verdict:
No threats detected
Analysis date:
2026-06-05 18:02:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3ca6bf3c-e29f-4b4a-9b54-d0536179aa85

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69236/
Detection(s):
Win.Worm.Generic-9786786-0
Create hunting rule

Win.Malware.Cosmu-9806582-0
Create hunting rule

Win.Worm.Agent-1344274
Create hunting rule

Win.Worm.388260-1
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a230dccf8676ad4d3617654
Tags:
cosmu agent virus worm
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows directory
Searching for synchronization primitives
Changing a file
Launching a process
Creating a file
Replacing executable files
Moving a recently created file
Enabling the 'hidden' option for recently created files
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive exploit fingerprint microsoft_visual_cc overlay packed reconnaissance
Link:
https://www.filescan.io/uploads/6a230dc877463968d61acc8c/reports/b1a7c0fb-1007-4299-9a63-dc474589193e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-06-03T17:39:00Z UTC
Last seen:
2026-06-03T19:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bba64e91-c879-4536-8fec-38ced1532bfe
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f/
Verdict:
Malicious
Threat:
Family.COSMU
Link:
https://tip.neiki.dev/file/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f
Threat name:
Win32.Virus.Emdup
Create hunting rule
Status:
Malicious
First seen:
2026-06-03 20:02:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
31 of 36 (86.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4tu5litkwccxn6ns22trniw5bumtc7lod6d7u2glcicoyohjp5pq._file
Result
Malware family:
cosmu
Create hunting rule
Score:
  10/10
Tags:
family:cosmu discovery worm
Link:
https://tria.ge/reports/260605-wh8cyac19q/
Behaviour
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Enumerates connected drives
Detects Cosmu payload
Family: Cosmu
Unpacked files
SH256 hash:
e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f
MD5 hash:
94b890bed9e8b9b3b6445ef5ab0a5d66
SHA1 hash:
71261752d166e4f83f8b770b6e670e517f41423d
Link:
https://www.unpac.me/results/2c0c888d-b3e8-49b5-891b-99efd41c0307/
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/e4e9d5a26ab08576f9b2d6a716a2dd0d19317d6e1f87fa68cb1204ec38e97f5f

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

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/69236/

Comments