Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc946da5680e2a23…

MALICIOUS

PDF

109.6 KB Created: 2020-08-19 04:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70cdc437b80c38e08fe047015cae98ec SHA-1: e2f6671f7b1f0eeb9998f6d582b05e8a58c1899e SHA-256: dc946da5680e2a23624d45ea2ce6ecb504dedb39cb276a8929b20aa924c07689
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains heuristics indicating it is a malicious redirector and a link farm. The embedded URL points to a known malicious redirector, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains the malicious URL.

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=advertising+media+planning+jack+scissors+pdf In PDF document text
    • http://files.nantymoelprimary.com/uploads/1/3/1/4/131454549/9718716.pdfIn PDF document text
    • http://files.illinoisdelta.org/uploads/1/3/2/6/132681938/2186787.pdfIn PDF document text
    • http://files.wallmanart.com/uploads/1/3/1/6/131607331/nidizojofiwigel.pdfIn PDF document text
    • http://tabuzas.donthirejerks.com/uploads/1/3/0/7/130776167/kapof-duvuvu-nilobodisuvut-dovixopogel.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/1/0432/1011/3188/files/rerikuwezebudadepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0435/files/attachment_styles_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/edgar_allan_poe_el_gato_negro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/mabibuzim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/namidujubenasamugepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/85569429761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lekerumukin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5271/1582/files/jamodenuzejekemiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6636/7895/files/bleach_season_4_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/pituberizalebubujavidiro.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FD6 5664 bytes
SHA-256: 2885a5b485bb810cb3cacb41d93f502f20d008103549ed85b77aac1dea737d64
font_01_sfnt_off0001830f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1830F 11036 bytes
SHA-256: 5b8ffc842f29b5c8debd2aff25c9965d979873e1262cc276a518957f612145bb

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