Malicious PDF — malware analysis report

Static analysis result for SHA-256 37ef26435f857308…

MALICIOUS

PDF

53.4 KB Created: 2020-08-01 16:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7028eed889a1182eafdbd81489404f4d SHA-1: 0ca2ce532c10b6e3defa98a9f4eccff40c481020 SHA-256: 37ef26435f8573085c4a24a5dd3abf88f6721ea911e06f6dc59300ee06512098
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with heuristics indicating it's a link farm designed to redirect users. One of the primary URLs, 'https://ttraff.ru/pify?keyword=magic+bullets+gungeon', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to direct users to malicious sites through these links.

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=magic+bullets+gungeon In PDF document text
    • http://files.animalguardianshorserescue.org/uploads/1/3/1/4/131407067/1214556.pdfIn PDF document text
    • http://files.kenmaremindfulnessandyoga.com/uploads/1/3/0/8/130814515/71370ab7c8c0612.pdfIn PDF document text
    • http://files.thehopechestil.org/uploads/1/3/1/4/131437743/af635.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/gazamutigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0147/1388/files/21018212393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/98807716129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/gojenugum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/rolufonuvusil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/wajubakegajisorasajupako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/sepulosogom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2632/5402/files/vupiwumodaxima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2099/files/8413104530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/tigivupekunimigenozijemej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9308/files/sear_craftsman_garage_door_opener_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/16917502478.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_off0000868a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868A 4896 bytes
SHA-256: c9bd48f60ab09ddc914ebf31302edb2b2447ce09612291e64cf929b8ae97b52b
font_01_sfnt_off0000973f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x973F 10204 bytes
SHA-256: c76e111e871f2afe0ae0d866e2b96ea5a9588ac46b2524583215d56147816871
font_02_sfnt_off0000ba22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA22 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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