Malicious PDF — malware analysis report

Static analysis result for SHA-256 892ae998d310b536…

MALICIOUS

PDF

49.2 KB Created: 2020-08-11 23:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9a1a4201cc21ba8882341afa38c4f44 SHA-1: 4162c566eed421a441e296cc245078c607250a48 SHA-256: 892ae998d310b536837b560ce10a9fcc13bc38809d25f6eb2b91c718439a3918
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating an attempt to lead users to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious. Although no scripts were directly extracted, the presence of embedded URLs and the overall structure suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=place+a+gif+in+a+pdf In PDF document text
    • http://files.americaninspections.us/uploads/1/3/1/4/131482887/jaratelapolasizi.pdfIn PDF document text
    • http://pukoxo.cymrumonochrome.com/uploads/1/3/2/6/132682883/lofibi_vudez.pdfIn PDF document text
    • http://files.yorkhomebrewers.org/uploads/1/3/1/3/131384660/widoxebiposu.pdfIn PDF document text
    • http://files.westernwilcodemsclub.com/uploads/1/3/1/0/131070452/e2180cb5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1568/2717/files/what_does_lmao_stand_for.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/9093267553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/tuvofubejivip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/78170082607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6332/files/fidabawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8133/4933/files/xezifikaxugupewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/zelirolimokojogoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/97516234689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4591/0678/files/kupawofupek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2475/0504/files/13634662389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/46901479411.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A6 5048 bytes
SHA-256: 588d68de0bfb8f6ac5e1f9902c697ec3b77a54cfe78d65bd1f41317683743d37
font_01_sfnt_off00008adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADB 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off00009369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9369 10564 bytes
SHA-256: a55c28087effa19c220d25e0d6c6a4979dba4acafc0b8cc9fdc6611b2abf4bdd

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