MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bc75b8586b3302e983b5f2cffe20b1ffbfdc1b553ad1e5a62e34b1029cf82b3. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: 1bc75b8586b3302e983b5f2cffe20b1ffbfdc1b553ad1e5a62e34b1029cf82b3
SHA3-384 hash: fd273e1babf947e83ed09aabf4bd084d5c44d5bc811544038c21974dd3c4dfdbbcf81b449453a0fba1dc961689accb45
SHA1 hash: 7c6b59ed25ecbcee31dbd02101c0e05ca877e333
MD5 hash: 277f0bea0a66c5a2fd36242b17efc6bb
humanhash: cold-tango-six-august
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-06-01 06:31:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T1BBA41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
74
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Result
Threat name:
n/a
Detection:
malicious
Classification:
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 tries to persist itself using cron
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1703207 Sample: amd64.elf Startdate: 01/06/2025 Architecture: LINUX Score: 72 44 204.12.208.37, 6881 WIIUS United States 2->44 46 172.103.84.153, 6881 WHITESKY-COMMUNICATIONSUS United States 2->46 48 102 other IPs or domains 2->48 54 Multi AV Scanner detection for submitted file 2->54 56 Connects to many ports of the same IP (likely port scanning) 2->56 58 Uses known network protocols on non-standard ports 2->58 10 amd64.elf 2->10         started        12 systemd snap-failure 2->12         started        signatures3 process4 process5 14 amd64.elf sh 10->14         started        16 amd64.elf 10->16         started        19 amd64.elf sh 10->19         started        21 snap-failure systemctl 12->21         started        23 snap-failure 12->23         started        signatures6 25 sh crontab 14->25         started        29 sh 14->29         started        50 Opens /sys/class/net/* files useful for querying network interface information 16->50 52 Sample reads /proc/mounts (often used for finding a writable filesystem) 16->52 31 amd64.elf 16->31         started        33 sh crontab 19->33         started        process7 file8 42 /var/spool/cron/crontabs/tmp.yfHyxH, ASCII 25->42 dropped 62 Sample tries to persist itself using cron 25->62 64 Executes the "crontab" command typically for achieving persistence 25->64 35 sh crontab 29->35         started        38 amd64.elf 31->38         started        signatures9 process10 signatures11 60 Executes the "crontab" command typically for achieving persistence 35->60 40 amd64.elf 38->40         started        process12
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2025-06-01 06:32:21 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 38 (36.84%)
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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 1bc75b8586b3302e983b5f2cffe20b1ffbfdc1b553ad1e5a62e34b1029cf82b3

(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