Malicious PDF — malware analysis report

Static analysis result for SHA-256 9946abf88cca6b2d…

MALICIOUS

PDF

83.6 KB Created: 2021-03-01 05:54:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 0e1101658ba29eaf4c3dc7804f52de9b SHA-1: 40a5100edb3aef3ef25cccaf89556a23a1cfe0ad SHA-256: 9946abf88cca6b2ddaff9c46562dab63d74750d377877487e4cc934143588dfb
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URIs, with one specifically identified as a potential phishing lure related to tractor repair. The ClamAV detection and ML classifier strongly indicate malicious intent. The presence of numerous external links, many on disposable hosting, suggests a link farm designed to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://xezojetit.ru/123?utm_term=how+do+you+bypass+the+starter+solenoid+on+a+tractor PDF link annotation
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/1437091.pdfIn PDF document text
    • https://xetizokabonon.weebly.com/uploads/1/3/2/6/132696323/bejumaxuki.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/eib0Kih/online_shooting_games_pc_no_download.pdfIn PDF document text
    • http://rollernefritmassage.xyz/sederenogji.pdfIn PDF document text
    • https://zageporipemaza.weebly.com/uploads/1/3/4/5/134507549/6856978.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/gjpj8gf/talking_ben_the_dog_appvn.pdfIn PDF document text
    • http://dupipavigojas.iblogger.org/sab_badhiya_hai_song.pdfIn PDF document text
    • https://cdn.sqhk.co/rokabumake/5jeaqgc/download_mini_4wd_legend_mod_apk.pdfIn PDF document text
    • http://umkatrade.ru/29190280284tl7lh.pdfIn PDF document text
    • https://nojinogexosop.weebly.com/uploads/1/3/4/6/134695112/zuruxefixoloreb-mojamofupap-lawavi-navowepudo.pdfIn PDF document text
    • https://cdn.sqhk.co/baxewoxevum/2igANia/xerijapipojorevabuz.pdfIn PDF document text
    • http://trackcreditscore.info/85035220089e371k.pdfIn PDF document text
    • http://servicesforsupport.com/lemopamescr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://baguzakanaso.epizy.com/pokemon_sun_and_moon_strategy_guide_download_free.pdfIn PDF document text
    • http://kurejaj.epizy.com/t_shirt_graphic_design_app_for_android.pdfIn PDF document text
    • http://dekuravimej.epizy.com/91922832452.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC97 5456 bytes
SHA-256: 754834983816628c81289c8e133d2d43178f7d5f1910381bd1086b974ded469d
font_01_sfnt_off00010f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F26 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00011a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A89 11044 bytes
SHA-256: afbcd76f078f4e4024b4cf8c5579ac336a53cc8c0b43672fa227368f50e29848

Open this report in the interactive analyzer, or submit your own file for analysis.