Malicious PDF — malware analysis report

Static analysis result for SHA-256 1acf1c7feaae2bb7…

MALICIOUS

PDF

92.3 KB Created: 2021-03-11 11:21:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 553c419dbe4d0fe15d78522632fe150d SHA-1: d50d8d8868d7e2146c540adac2f57e71af789970 SHA-256: 1acf1c7feaae2bb7a725cf7dea106ee9b572905057d043838ecc12df9e73cb38
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document exhibits characteristics of a phishing lure, specifically designed to appear as a link farm for movie downloads. It contains numerous external links, many of which point to SEO redirectors, suggesting an attempt to drive traffic to malicious or deceptive content. The ClamAV detection and ML classifier further support its malicious nature, indicating it is likely a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jumiwimov.ru/123?utm_term=bound+2015+movie++300mb PDF link annotation
    • https://cdn.sqhk.co/xezalagefog/O1xhaVg/zajukuxajesutegadugow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386595/normal_60469446acfff.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/hjcghd2/stickman_destruction_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412573/normal_5ffbf4ff43b7e.pdfIn PDF document text
    • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/vilet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366402/normal_60158d2a6454e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_603fb0a6c9240.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374189/normal_600906ded6101.pdfIn PDF document text
    • https://funogumoduwe.weebly.com/uploads/1/3/4/3/134309977/ace066b4908ec.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/eihhbgf/zetab.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/kia2cid/street_art_wallpaper_hd_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zirigajer/biaxVhc/xikaginijepuwuwenazuvizu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374537/normal_5fdb25de1927c.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/DhaghRr/zinger_stacker_tower_burger.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459628/normal_603fab840464a.pdfIn PDF document text
    • https://cdn.sqhk.co/besudamuge/ifL0hhQ/kubarifibepubipuniw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • https://uploads.strikinglycdn.com/files/063ad55b-ae3b-47d1-8a81-306616f24869/55128868088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/660e9f75-eafc-4454-b30b-9894a033f029/how_to_connect_alesis_sr_18_to_computer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e57b3aa5-1866-40b7-a1c0-809b4dbe05cc/zidopakipuwu.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://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB85 5316 bytes
SHA-256: 761f29dacefbf988069d5ed18f5e5ca943a982841a83beb38fd3a69b9c7b61a9
font_01_sfnt_off0000fda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA0 20968 bytes
SHA-256: aa890c11d31957efca0fd402aa72a454fd9b4193136962196ca6c8da92cd1596
font_02_sfnt_off00011dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DCF 2276 bytes
SHA-256: 04d00fe4d3d1cfb13f6c45ea00a1a16b92fe51d00c0709aca980b96f225372d0
font_03_sfnt_off0001279c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1279C 15888 bytes
SHA-256: 55f1a4d68c6fb510383b1187bbf08d4f43a57341a98981355f04135cfbdba0a3
font_04_sfnt_off000158a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158A5 2056 bytes
SHA-256: 2e46b36fed23876ebb6e11f7a152916482bd8967c060a582f04975efc8a71266

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