MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03b7cd55327ca641443c2760f5ffaefc872bc61fffb99a9d5171aed2505fa9cb. 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


XorDDoS


Vendor detections: 6


Intelligence 6 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03b7cd55327ca641443c2760f5ffaefc872bc61fffb99a9d5171aed2505fa9cb
SHA3-384 hash: 6f03cff792ba7af55459cffe968edd90da9e593781d58d99b04a154a5b88e45bfe4c9dfb866590313a72d71a22aebfae
SHA1 hash: fa318975c1fc6ae7d8cd56d226407714c3110e60
MD5 hash: cb16d186b4196f9002779830a0430ded
humanhash: maryland-island-don-delaware
File name:xor2.o
Download: download sample
Signature XorDDoS
Create hunting rule
File size:253'441 bytes
First seen:2022-04-15 19:57:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:nSDFOrnwRgUbMisI6sdkH+M6hWOcy5KOZW7U6NCPhhhR//mqYh:mZRgUY/fsJcO1KOiXOhhhBeh
TLSH T1654423ECD983A4B73D3186BD71D935D940ACE1ED823E3A22E346615BD21E053AC84D53
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Reporter adm1n_usa32
Tags:elf intel XorDDoS

Intelligence

File Origin
# of uploads :
1
# of downloads :
354
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7338044-0
Create hunting rule

Unix.Dropper.Mirai-7338046-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/6259ce4fffe27d5119de2af6/reports/c5949b60-6207-4ffe-ab3b-46c11ce40ab4/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
13
Number of processes launched:
24
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/03b7cd55327ca641443c2760f5ffaefc872bc61fffb99a9d5171aed2505fa9cb
Behaviour
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3a2c4eac-3038-453b-9022-7108b6171393
Result
Threat name:
XorDDoS
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/977528
Signature
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Yara detected XorDDoS Bot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 610018 Sample: xor2.o Startdate: 15/04/2022 Architecture: LINUX Score: 76 72 109.202.202.202, 80 INIT7CH Switzerland 2->72 74 103.223.120.131, 8809 IKGUL-26484US China 2->74 76 4 other IPs or domains 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 Yara detected XorDDoS Bot 2->80 82 Sample is packed with UPX 2->82 10 xor2.o 2->10         started        12 systemd snapd-env-generator 2->12         started        signatures3 process4 process5 14 xor2.o 10->14         started        file6 64 /usr/bin/zuysugqjmu, ELF 14->64 dropped 66 /usr/bin/yayqcjlrkh, ELF 14->66 dropped 68 /usr/bin/xtgzmjzqkn, ELF 14->68 dropped 70 20 other files (19 malicious) 14->70 dropped 90 Drops files in suspicious directories 14->90 92 Sample deletes itself 14->92 94 Sample tries to persist itself using cron 14->94 96 Sample tries to persist itself using System V runlevels 14->96 18 xor2.o sh 14->18         started        22 xor2.o 14->22         started        24 xor2.o 14->24         started        26 100 other processes 14->26 signatures7 process8 file9 62 /etc/crontab, ASCII 18->62 dropped 84 Sample tries to persist itself using cron 18->84 28 sh sed 18->28         started        31 xor2.o pkpllmuefx 22->31         started        33 xor2.o pkpllmuefx 24->33         started        35 xor2.o pkpllmuefx 26->35         started        37 xor2.o pkpllmuefx 26->37         started        39 xor2.o pkpllmuefx 26->39         started        41 97 other processes 26->41 signatures10 process11 signatures12 88 Sample tries to persist itself using cron 28->88 43 pkpllmuefx 31->43         started        46 pkpllmuefx 33->46         started        48 pkpllmuefx 35->48         started        50 pkpllmuefx 37->50         started        52 pkpllmuefx 39->52         started        54 ddxiiqzrdy 41->54         started        56 ddxiiqzrdy 41->56         started        58 ddxiiqzrdy 41->58         started        60 92 other processes 41->60 process13 signatures14 86 Sample deletes itself 54->86
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03b7cd55327ca641443c2760f5ffaefc872bc61fffb99a9d5171aed2505fa9cb/
Threat name:
Linux.Trojan.XorDDoS
Create hunting rule
Status:
Malicious
First seen:
2022-04-13 22:27:58 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
linux persistence
Link:
https://tria.ge/reports/220415-yps8psghh5/
Behaviour
Reads runtime system information
Writes file to tmp directory
Creates/modifies Cron job
Modifies rc script
Unexpected DNS network traffic destination
Write file to user bin folder
Writes file to system bin folder
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/03b7cd55327ca641443c2760f5ffaefc872bc61fffb99a9d5171aed2505fa9cb

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
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research

File information

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

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