Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fcfe8394262622…

MALICIOUS

PDF

72.7 KB Created: 2021-03-16 08:01:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 633c5d911488c4929fbdec88c5cc063b SHA-1: 4a30870cb3839eba6dbeacb923a9a431354cc02e SHA-256: 60fcfe83942626226659eebfe1ca9b8beae2fbe3eef172ecd302b73a0136621d
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to a keyword search on a suspicious domain, suggesting a lure for phishing or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/wb?keyword=new%20holland%20ls180%20torque%20specs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426425/normal_603b40d5665ca.pdfIn PDF document text
    • https://cdn.sqhk.co/lunosupi/bdgdgcQ/76453123177.pdfIn PDF document text
    • https://mepifinifiwiza.weebly.com/uploads/1/3/4/3/134334375/27c93b29.pdfIn PDF document text
    • http://biggymstoe.com/candle_light_dinner_new_punjabi_songez6ce.pdfIn PDF document text
    • https://gimitowogavu.weebly.com/uploads/1/3/4/7/134746983/825445.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459054/normal_6001d2aa4b139.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376098/normal_5fd64db39f4cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455195/normal_6015d8fd29c4e.pdfIn PDF document text
    • https://pitinolulisam.weebly.com/uploads/1/3/1/3/131381612/3319004.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/ih3hrhg/damefenepadefewixijatol.pdfIn PDF document text
    • https://notefusiwedamap.weebly.com/uploads/1/3/4/8/134872173/wejun_sipisisigiz_dufetuvotato_bapevupatabumib.pdfIn PDF document text
    • https://cdn.sqhk.co/danajuva/jbhaifD/nintendo_switch_online_price_comparison.pdfIn PDF document text
    • https://cdn.sqhk.co/senuziker/hIget2u/tizamefifipirabir.pdfIn PDF document text
    • http://4kuhd.me/dd_prestige_classes_3.590hdp.pdfIn PDF document text
    • https://cdn.sqhk.co/kelulegawi/cAejcnV/nupevuzezudufazir.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/rigonudu.pdfIn PDF document text
    • http://rabiwitijif.medianewsonline.com/best_annotation_app_reddit.pdfIn PDF document text
    • https://gixefizavemo.weebly.com/uploads/1/3/4/1/134108956/2503760.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/17585ca3-419b-43fa-86c4-ba52681aa5b4/sears_garage_door_opener_remote_compatibility_chart.pdfIn PDF document text
    • http://lajovaputap.myartsonline.com/tozodomopefenisugulu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b09ca54-5ea2-4278-9bc5-881de207867e/what_is_predictive_analytics_in_hr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7447df19-896e-47f8-9f1d-4b05f31634c2/why_is_my_ge_profile_refrigerator_not_cooling.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54944cda-8e5d-4ed7-a3ae-ff6467f84efa/toro_lawn_mower_parts_dealer_near_me.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB0 5736 bytes
SHA-256: 2ac6c653e5f72947beaa72bbf7521ae19454e1e5569ffaf9c827661582a22f77
font_01_sfnt_off0000f248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF248 10292 bytes
SHA-256: 89b2cf456fb8fa760f69900b60ab2997c77625360b836c4e153b52323c0a86e3