MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45. 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


Mirai


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45
SHA3-384 hash: 18e279e3a111438a1f41b0af853583a202edf18feab52a30fd018c524fc13e2e85f4432913b34925c83b8869138aba65
SHA1 hash: 639b1af5ea9f53d38b877360f500dcce1ac274a3
MD5 hash: de5ed968248e6fad3ab179f6390a6cb5
humanhash: mobile-harry-glucose-sixteen
File name:armv4l
Download: download sample
Signature Mirai
Create hunting rule
File size:58'856 bytes
First seen:2025-11-21 05:19:23 UTC
Last seen:2025-11-21 07:00:52 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:gmLFJAxYT3sFFEQpmEQwDIbFjvlm6TdhgC4RZVQuM2FT69UoRSJZfmx3UW4x:gmYxcs3mEQw05nUJQuMz34x
TLSH T1BA430250606634B3C01B29B4E9E6C9C1986C8668E1FB3598229D4BF17DE7BDD353C28F
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 UPX
File size (compressed) :58'856 bytes
File size (de-compressed) :174'476 bytes
Format:linux/arm
Unpacked file: b45d129d32f59be871f59e963d8cac3122a31f57c4491ba6519b0256d62f986d

Intelligence

File Origin
# of uploads :
2
# of downloads :
103
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
mirai packed upx
Link:
https://www.filescan.io/uploads/691ff69e5d3feebe12d68c98/reports/5a04f44d-339d-4e2c-9d3e-49414095d3ea/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-21T05:04:00Z UTC
Last seen:
2025-11-21T05:42:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ecab2c5c-b692-4a43-989b-b1252cd3352e
Behavior Graph:
Download SVG
%3 guuid=1c95ac7a-1900-0000-3518-006d64140000 pid=5220 /usr/bin/sudo guuid=71e7f07c-1900-0000-3518-006d65140000 pid=5221 /tmp/sample.bin guuid=1c95ac7a-1900-0000-3518-006d64140000 pid=5220->guuid=71e7f07c-1900-0000-3518-006d65140000 pid=5221 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/949b436b-df6c-4798-805d-56df2e8303e7
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1818303
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1818303 Sample: armv4l.elf Startdate: 21/11/2025 Architecture: LINUX Score: 52 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->14 16 2 other IPs or domains 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Sample is packed with UPX 2->20 6 dash rm 2->6         started        8 dash rm 2->8         started        10 armv4l.elf 2->10         started        signatures3 process4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-11-21 05:20:32 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehczxcgb3xzzoyjblfvxqtipckyeen4uamqxuxlkcubmfmr4xvcq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251121-f1ns9acp6x/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/973ffcca-99f2-4699-9f77-c3712e2751e5
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/21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45

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: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: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

Mirai

elf 21c59b88c1ddf3976121596b784d0f12b042379403217a5d6a1502c2b23cbd45

(this sample)

Mirai

elf b45d129d32f59be871f59e963d8cac3122a31f57c4491ba6519b0256d62f986d

  
URLhaus
https://urlhaus.abuse.ch/url/3693006/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 b45d129d32f59be871f59e963d8cac3122a31f57c4491ba6519b0256d62f986d
  
Dropping
MD5 bc97288446cb919c30f9c4e69048b01c

Comments