Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9260f5d54bbcd44…

MALICIOUS

PDF

87.0 KB Created: 2021-03-15 01:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: afa0bf07c02880dee18e82344f1a64f4 SHA-1: 57adaf63328f78a56ea902b5391a96cd7c06ff23 SHA-256: d9260f5d54bbcd443ead1a70742ccd7ce3785f20983d5595c2ee67d5d7459a9e
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, indicating it functions as a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and numerous external URLs point towards a tactic of redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/wix?keyword=all+sulfate+minerals+contain+the+elements PDF link annotation
    • https://wenezobu.weebly.com/uploads/1/3/4/6/134625155/natodisojuxuwanigef.pdfIn PDF document text
    • https://cdn.sqhk.co/dawupana/qgigdib/99913661304.pdfIn PDF document text
    • https://cdn.sqhk.co/ridijafugemi/gf2tjdB/13283197281.pdfIn PDF document text
    • https://cdn.sqhk.co/berazanoga/dhcR6Ej/no_watermark_video_download_tik_tok.pdfIn PDF document text
    • http://heartcenteredequestrian.com/sisters_of_battle_animevchwe.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwozobo/ijiijGb/uber_eats_local_food_delivery_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vafebutiman/uEjghd1/91153853402.pdfIn PDF document text
    • https://cdn.sqhk.co/navuwamas/jdGTxhf/pudovituvogivovadekuned.pdfIn PDF document text
    • https://zabemogir.weebly.com/uploads/1/3/4/0/134016966/1529286.pdfIn PDF document text
    • http://biomaniix.website/67467323297dj4d0.pdfIn PDF document text
    • http://islemleriniz.org/37379346193qyaef.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/bg2hhjT/geometry_dash_meltdown_pc_download.pdfIn PDF document text
    • https://nenubijul.weebly.com/uploads/1/3/5/3/135393623/gesokukaleze-zusotire-kifuduruwi.pdfIn PDF document text
    • https://cdn.sqhk.co/ninilevikod/gcx0iaG/xijije.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_b720e3a604074cc5bb8487b393aa632d.pdf?index=trueIn PDF document text
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_762028f379f447f2a586de0f85b90c81.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/baf6c84d-8864-4959-8450-545675aa97a8/99_dewalt_drill_at_lowes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9688e5f-351d-43ea-a8f5-90d389b4d47f/juvudokitipuriguguxa.pdfIn PDF document text
    • https://a2fe464c-28d1-4db8-bb2d-552ad9bc2f4d.filesusr.com/ugd/941bb1_d6de3f46d7724fbe953e3e3a8b53f803.pdf?index=trueIn 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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101AD 6492 bytes
SHA-256: d2077f5d6d5b1d677d9b6d000eb087611a047961d42ceeb980acba3b54af8b85
font_01_sfnt_off000111e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111E2 5112 bytes
SHA-256: 6083f9f1d39e9d13dfe11b6054d704bf55194a6dac01c852555dda1adb352cc0
font_02_sfnt_off0001231b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1231B 12564 bytes
SHA-256: da27a136725d6847d6c29475d73b188b27401ad6c62d511a5034c981ff4fe7ca