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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88. 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


Threat unknown


Vendor detections: 6


Intelligence 6 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88
SHA3-384 hash: ef85d4f116182ec01d934f41bd10a085578c60700f4a3625afdf841267f31d26c59a89889aa594cc5d189ce0825d54d1
SHA1 hash: cf1eaacd23eaecce4b850d2154b37d533275595f
MD5 hash: 5c73364295539d2d2ec8ab0446efff70
humanhash: montana-nebraska-arkansas-rugby
File name:hb_x86
Download: download sample
File size:328'315 bytes
First seen:2026-10-17 14:28:30 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:NxqfU957+U47a8XWW6NwTq+JeYe6m3kOadgq4Fja8TSaM9QbUluxANR:N8fU95CKg/6H+JXe6V3SnTK7luxAz
TLSH T1496423CCE99EE8B1E945033C6D0316D2B52AEA74CE1C1DAB9E0DD9BB2F3D1211E04D95
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/1874c75f-3d4f-450c-bbee-856a0c47adc9/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Sends data to a server
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6ad3863fbe3f544182fa5ff0/reports/cf09934c-4d00-482d-ba5d-8520e71391e8/overview
Verdict:
Unknown
File Type:
elf.64.le
Link:
https://opentip.kaspersky.com/ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3fdc2ace-fea4-463f-a107-11b071badfe2
Behavior Graph:
Download SVG
%3 guuid=6d550bc2-1a00-0000-5a15-d2f7160c0000 pid=3094 /usr/bin/sudo guuid=3ec22cc5-1a00-0000-5a15-d2f7170c0000 pid=3095 /tmp/sample.bin mprotect-exec guuid=6d550bc2-1a00-0000-5a15-d2f7160c0000 pid=3094->guuid=3ec22cc5-1a00-0000-5a15-d2f7170c0000 pid=3095 execve guuid=2edd48c8-1a00-0000-5a15-d2f7190c0000 pid=3097 /tmp/sample.bin zombie guuid=3ec22cc5-1a00-0000-5a15-d2f7170c0000 pid=3095->guuid=2edd48c8-1a00-0000-5a15-d2f7190c0000 pid=3097 clone guuid=0a7ebdc8-1a00-0000-5a15-d2f71a0c0000 pid=3098 /tmp/sample.bin net send-data zombie guuid=2edd48c8-1a00-0000-5a15-d2f7190c0000 pid=3097->guuid=0a7ebdc8-1a00-0000-5a15-d2f71a0c0000 pid=3098 clone 5b81ce95-f87b-5af6-b034-19071e18e742 193.233.20.122:80 guuid=0a7ebdc8-1a00-0000-5a15-d2f71a0c0000 pid=3098->5b81ce95-f87b-5af6-b034-19071e18e742 send: 241B
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3827f471-ffaf-4a37-99df-5ca30b848bdb
Result
Threat name:
n/a
Detection:
suspicious
Classification:
evad
Score:
22 / 100
Link:
https://www.joesandbox.com/analysis/1988399
Signature
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1988399 Sample: hb_x86.elf Startdate: 17/10/2026 Architecture: LINUX Score: 22 16 169.254.169.254, 80 USDOS-USDepartmentofStateUS ZZ 2->16 18 193.233.20.122, 36726, 36728, 36730 KVMKARU Russia 2->18 20 Sample is packed with UPX 2->20 8 hb_x86.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 process4 process5 12 hb_x86.elf 8->12         started        process6 14 hb_x86.elf 12->14         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-17 14:29:25 UTC
File Type:
ELF64 Little (Exe)
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=556aewenrptlxefypezl4iwlunq6wmye535szdjtyq2bsq2t76ea._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery linux upx
Link:
https://tria.ge/reports/261017-rtnqfs1x9q/
Behaviour
Reads runtime system information
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88

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_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_IoT_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
Rule name:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

elf ef7c02588d8be6bb90b87932be22cba361eb3304eefb2c8d33c434194353ff88

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3950994/
  
Delivery method
Distributed via web download

Comments