Malicious PDF — malware analysis report

Static analysis result for SHA-256 086d884e7ed43e49…

MALICIOUS

PDF

48.3 KB Created: 2020-08-25 02:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7538eb17cc0e09c248cdd536f9a3ecc1 SHA-1: b9d344596d2b432e855d9cd924fb0274cbf853ed SHA-256: 086d884e7ed43e49310856cc3a937afa4cadc64fcb058f20c481ed19b2dc3177
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body and embedded links suggest a lure for downloading applications, potentially malware, under the guise of free game or book downloads. The primary malicious IOC is the redirector URL, which is used to funnel victims to further malicious sites.

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=tiny+archers+apk+unlimited+gems In PDF document text
    • http://rulafa.spindriftdancecollective.com/uploads/1/3/0/7/130739789/8019789.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/1/0430/2818/5239/files/the_art_of_the_adventures_of_tintin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2633/files/78547265986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3473/2712/files/black_hole_maths.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/77157981025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/vuluravokirebipexuvoreb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4807/4405/files/41976034802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/24105043958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/79642683622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0957/8904/files/life_death_and_meaning_david_benatar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/rewamajuwifamipotobuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/34300143495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/lolekibu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00006861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6861 5604 bytes
SHA-256: cd85726dcb40ddd252276a32042a6ef533520028c7193c1aba267f88073ef980
font_01_sfnt_off00007b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3F 10524 bytes
SHA-256: ed6a659ede7af03aa0940fbf145db39c8e9d04bb9aa25da592247ff7276a8587
font_02_sfnt_off00009f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F76 16060 bytes
SHA-256: df1d2c903cabdf2976887e260da0b25217edeb5ce2b71f315001024534e8e210

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