MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b8d4070770660c2e64fd2010181604edb8c612cb8d32516e7f783a09ea98cb4. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments

SHA256 hash: 1b8d4070770660c2e64fd2010181604edb8c612cb8d32516e7f783a09ea98cb4
SHA3-384 hash: 6106d09f8c165bb60358c84316090c5f4c18a9de8726bf2f18134222c43febc564303a9a6a5eeaebde86797fea154e73
SHA1 hash: 66c3b495c528d3d8b74498e57124be657bffc1a6
MD5 hash: 05b21ce9ac1cf8e104ce8801d523433c
humanhash: lake-steak-fanta-eighteen
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-07-01 16:36:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T101A41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
10
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Status:
terminated
Behavior Graph:
%3 guuid=33205130-1a00-0000-53d6-693a630a0000 pid=2659 /usr/bin/sudo guuid=a4c59932-1a00-0000-53d6-693a6b0a0000 pid=2667 /tmp/sample.bin guuid=33205130-1a00-0000-53d6-693a630a0000 pid=2659->guuid=a4c59932-1a00-0000-53d6-693a6b0a0000 pid=2667 execve guuid=f2b2c532-1a00-0000-53d6-693a6d0a0000 pid=2669 /usr/bin/dash guuid=a4c59932-1a00-0000-53d6-693a6b0a0000 pid=2667->guuid=f2b2c532-1a00-0000-53d6-693a6d0a0000 pid=2669 execve guuid=96142533-1a00-0000-53d6-693a6e0a0000 pid=2670 /usr/bin/dash guuid=a4c59932-1a00-0000-53d6-693a6b0a0000 pid=2667->guuid=96142533-1a00-0000-53d6-693a6e0a0000 pid=2670 execve guuid=57e28333-1a00-0000-53d6-693a720a0000 pid=2674 /tmp/sample.bin mprotect-exec zombie guuid=a4c59932-1a00-0000-53d6-693a6b0a0000 pid=2667->guuid=57e28333-1a00-0000-53d6-693a720a0000 pid=2674 clone guuid=c70a5833-1a00-0000-53d6-693a700a0000 pid=2672 /usr/bin/dash guuid=96142533-1a00-0000-53d6-693a6e0a0000 pid=2670->guuid=c70a5833-1a00-0000-53d6-693a700a0000 pid=2672 clone guuid=9ab85c33-1a00-0000-53d6-693a710a0000 pid=2673 /usr/bin/dash guuid=96142533-1a00-0000-53d6-693a6e0a0000 pid=2670->guuid=9ab85c33-1a00-0000-53d6-693a710a0000 pid=2673 clone guuid=5618e138-1a00-0000-53d6-693a860a0000 pid=2694 /tmp/sample.bin zombie guuid=57e28333-1a00-0000-53d6-693a720a0000 pid=2674->guuid=5618e138-1a00-0000-53d6-693a860a0000 pid=2694 clone guuid=9f63ee38-1a00-0000-53d6-693a870a0000 pid=2695 /tmp/sample.bin guuid=5618e138-1a00-0000-53d6-693a860a0000 pid=2694->guuid=9f63ee38-1a00-0000-53d6-693a870a0000 pid=2695 clone guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697 /tmp/sample.bin dns net net-scan send-data guuid=9f63ee38-1a00-0000-53d6-693a870a0000 pid=2695->guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697 clone d316b2ae-0a7e-5b43-8de6-745900c90c54 127.0.0.1:65535 guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697->d316b2ae-0a7e-5b43-8de6-745900c90c54 con 38a4910e-6f05-5afe-a8e3-398c2eb18329 time.cloudflare.com:123 guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697->38a4910e-6f05-5afe-a8e3-398c2eb18329 send: 48B guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697|send-data send-data to 274 IP addresses review logs to see them all guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697->guuid=80e90039-1a00-0000-53d6-693a890a0000 pid=2697|send-data send
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 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 tries to persist itself using cron
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1726530 Sample: amd64.elf Startdate: 01/07/2025 Architecture: LINUX Score: 68 42 124.40.78.23, 55006, 6881 ZLANZTVCOLTDJP Japan 2->42 44 79.107.35.39, 6881 WIND-ASGR Greece 2->44 46 102 other IPs or domains 2->46 54 Multi AV Scanner detection for submitted file 2->54 56 Connects to many ports of the same IP (likely port scanning) 2->56 10 amd64.elf 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 process4 process5 16 amd64.elf sh 10->16         started        18 amd64.elf 10->18         started        21 amd64.elf sh 10->21         started        signatures6 23 sh crontab 16->23         started        27 sh 16->27         started        50 Opens /sys/class/net/* files useful for querying network interface information 18->50 52 Sample reads /proc/mounts (often used for finding a writable filesystem) 18->52 29 amd64.elf 18->29         started        31 sh crontab 21->31         started        process7 file8 40 /var/spool/cron/crontabs/tmp.gN5s2D, ASCII 23->40 dropped 58 Sample tries to persist itself using cron 23->58 60 Executes the "crontab" command typically for achieving persistence 23->60 33 sh crontab 27->33         started        36 amd64.elf 29->36         started        signatures9 process10 signatures11 48 Executes the "crontab" command typically for achieving persistence 33->48 38 amd64.elf 36->38         started        process12
Threat name:
Linux.Trojan.Multiverze
Status:
Malicious
First seen:
2025-07-01 16:37:25 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 38 (50.00%)
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 1b8d4070770660c2e64fd2010181604edb8c612cb8d32516e7f783a09ea98cb4

(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