MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fac726e1698ee567b2b25106976e103561852a56d63831cf05f66ec05a64be4e. 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
| SHA256 hash: | fac726e1698ee567b2b25106976e103561852a56d63831cf05f66ec05a64be4e |
|---|---|
| SHA3-384 hash: | 637c8cf0f96c4e09e2a1712bd3f6a0e0132fe2aa252244dea582c1e54f737ad2fc88655298829d795e9eb085096fd380 |
| SHA1 hash: | 29e66b5a648b7611c6f9266e6da8fe7897493886 |
| MD5 hash: | 250501d8e88804131dc4474b58bf736f |
| humanhash: | november-minnesota-mexico-moon |
| File name: | putita.x86_64 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 198'912 bytes |
| First seen: | 2026-08-24 15:30:32 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-sharedlib |
| ssdeep | 3072:GabMqrw6hG15AsAIFJRxsV/bXS3taAylwWm4wi7d74Hyj80d:GasqGPbQV/b8K9m/cdmyjZd |
| TLSH | T1A4145C07B69144FCC19AC474876F9523F931B85D03243D7BABC0AA716E22F716B1DBA2 |
| 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 mirai upx-dec |
abuse_ch
UPX decompressed file, sourced from SHA256 de1e368d7350622484b986abd7e4a515285e88411954e744d005bebc5a1929d5UPX unpacked
This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.
| File size (compressed) : | 95'420 bytes |
|---|---|
| File size (de-compressed) : | 198'912 bytes |
| Format: | linux/amd64 |
| Packed file: | de1e368d7350622484b986abd7e4a515285e88411954e744d005bebc5a1929d5 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
65
Origin country :
NLVendor Threat Intelligence
No detections
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Sets a written file as executable
Runs as daemon
Creates or modifies symbolic links
Changes the time when the file was created, accessed, or modified
Opens a port
Connection attempt
Launching a process
Changes access rights for a written file
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
expand gcc lolbin mirai
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
15
Number of processes launched:
14
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-08-24T13:43:00Z UTC
Last seen:
2026-08-25T23:53:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
Gathering data
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-08-24 15:31:24 UTC
File Type:
ELF64 Little (SO)
AV detection:
14 of 38 (36.84%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
defense_evasion execution linux persistence privilege_escalation
Behaviour
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | deepfield_potassium_mirai_variant |
|---|---|
| Author: | Nokia Deepfield ERT |
| Description: | Detects Potassium Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper). Also known as Woof (internal) and Dichter (related variant with Dutch C2 domains, same key material). |
| Reference: | Internal analysis of sample 6ef4ce02; external: @deobfuscately |
| Rule name: | ELF_IoT_Persistence_Hunt |
|---|---|
| Author: | 4r4 |
| Description: | Hunts for ELF files with persistence and download capabilities |
| Rule name: | ELF_Mirai |
|---|---|
| Author: | NDA0E |
| Description: | Detects multiple Mirai variants |
| Rule name: | unixredflags3 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Hunts for UNIX red flags |
| Rule name: | woof_mirai_variant |
|---|---|
| Author: | Nokia Deepfield ERT |
| Description: | Detects Woof Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper) |
| Reference: | Internal analysis of sample 6ef4ce02 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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