MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8dfac3fa2d7056a6eaf22b27432f4404ef7e9b7b77a73a52471acfbfed749ef. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments

SHA256 hash: d8dfac3fa2d7056a6eaf22b27432f4404ef7e9b7b77a73a52471acfbfed749ef
SHA3-384 hash: 9bd7754e91891893221b260435c888e18e025c1b3047704ab591f0c8293b874cc908488940dfe4f60c084b3a9b3b7e49
SHA1 hash: 434a84a6a300948346e465ca1831c910889bc319
MD5 hash: 57c102232935a8461ecc06dba6417770
humanhash: missouri-oklahoma-yankee-mississippi
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-07-08 05:31:00 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T1E9A41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
13
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creates directories
Locks files
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Collects information on the CPU
Receives data from a server
Runs as daemon
Creating a file
Creating a file in the %temp% directory
Opens a port
Launching a process
Sends data to a server
Connection attempt
Creates or modifies files in /cron to set up autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
exploit gcc
Status:
terminated
Behavior Graph:
%3 guuid=4c86f56e-1900-0000-2fa9-cc00c60b0000 pid=3014 /usr/bin/sudo guuid=cadbc671-1900-0000-2fa9-cc00d10b0000 pid=3025 /tmp/sample.bin guuid=4c86f56e-1900-0000-2fa9-cc00c60b0000 pid=3014->guuid=cadbc671-1900-0000-2fa9-cc00d10b0000 pid=3025 execve guuid=55a8e771-1900-0000-2fa9-cc00d20b0000 pid=3026 /usr/bin/dash guuid=cadbc671-1900-0000-2fa9-cc00d10b0000 pid=3025->guuid=55a8e771-1900-0000-2fa9-cc00d20b0000 pid=3026 execve guuid=9eee4972-1900-0000-2fa9-cc00d40b0000 pid=3028 /usr/bin/dash guuid=cadbc671-1900-0000-2fa9-cc00d10b0000 pid=3025->guuid=9eee4972-1900-0000-2fa9-cc00d40b0000 pid=3028 execve guuid=9f8aee72-1900-0000-2fa9-cc00d90b0000 pid=3033 /tmp/sample.bin mprotect-exec zombie guuid=cadbc671-1900-0000-2fa9-cc00d10b0000 pid=3025->guuid=9f8aee72-1900-0000-2fa9-cc00d90b0000 pid=3033 clone guuid=806db572-1900-0000-2fa9-cc00d60b0000 pid=3030 /usr/bin/dash guuid=9eee4972-1900-0000-2fa9-cc00d40b0000 pid=3028->guuid=806db572-1900-0000-2fa9-cc00d60b0000 pid=3030 clone guuid=88d2bf72-1900-0000-2fa9-cc00d70b0000 pid=3031 /usr/bin/dash guuid=9eee4972-1900-0000-2fa9-cc00d40b0000 pid=3028->guuid=88d2bf72-1900-0000-2fa9-cc00d70b0000 pid=3031 clone guuid=26118c7a-1900-0000-2fa9-cc00f20b0000 pid=3058 /tmp/sample.bin zombie guuid=9f8aee72-1900-0000-2fa9-cc00d90b0000 pid=3033->guuid=26118c7a-1900-0000-2fa9-cc00f20b0000 pid=3058 clone guuid=851b997a-1900-0000-2fa9-cc00f30b0000 pid=3059 /tmp/sample.bin guuid=26118c7a-1900-0000-2fa9-cc00f20b0000 pid=3058->guuid=851b997a-1900-0000-2fa9-cc00f30b0000 pid=3059 clone guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061 /tmp/sample.bin dns net net-scan send-data guuid=851b997a-1900-0000-2fa9-cc00f30b0000 pid=3059->guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061 clone d316b2ae-0a7e-5b43-8de6-745900c90c54 127.0.0.1:65535 guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061->d316b2ae-0a7e-5b43-8de6-745900c90c54 con 38a4910e-6f05-5afe-a8e3-398c2eb18329 time.cloudflare.com:123 guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061->38a4910e-6f05-5afe-a8e3-398c2eb18329 send: 48B 5d8589a4-baba-5fb3-ab80-dcee481cb4b6 31.200.249.146:31786 guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061->5d8589a4-baba-5fb3-ab80-dcee481cb4b6 send: 68B guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061|send-data send-data to 234 IP addresses review logs to see them all guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061->guuid=a23aa07a-1900-0000-2fa9-cc00f50b0000 pid=3061|send-data send
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.spyw
Score:
72 / 100
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Opens /sys/class/net/* files useful for querying network interface information
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample scans a subnet
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1730588 Sample: amd64.elf Startdate: 08/07/2025 Architecture: LINUX Score: 72 38 178.162.174.152, 28007, 6881 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 2->38 40 178.162.174.169, 28003, 6881 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 2->40 42 101 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Connects to many ports of the same IP (likely port scanning) 2->46 48 Sample scans a subnet 2->48 10 amd64.elf 2->10         started        signatures3 process4 process5 12 amd64.elf sh 10->12         started        14 amd64.elf 10->14         started        17 amd64.elf sh 10->17         started        signatures6 19 sh crontab 12->19         started        23 sh 12->23         started        56 Opens /sys/class/net/* files useful for querying network interface information 14->56 58 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->58 25 amd64.elf 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.0cZzU4, ASCII 19->36 dropped 50 Sample tries to persist itself using cron 19->50 52 Executes the "crontab" command typically for achieving persistence 19->52 29 sh crontab 23->29         started        32 amd64.elf 25->32         started        signatures9 process10 signatures11 54 Executes the "crontab" command typically for achieving persistence 29->54 34 amd64.elf 32->34         started        process12
Threat name:
Linux.Trojan.Multiverze
Status:
Malicious
First seen:
2025-07-08 05:31:20 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Checks CPU configuration
Checks hardware identifiers (DMI)
Creates/modifies Cron job
Enumerates running processes
Reads MAC address of network interface
Reads hardware information
Please note that we are no longer able to provide a coverage score for Virus Total.

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:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information


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

Web download

elf d8dfac3fa2d7056a6eaf22b27432f4404ef7e9b7b77a73a52471acfbfed749ef

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments