Malicious PDF — malware analysis report

Static analysis result for SHA-256 479f646a82e1578c…

MALICIOUS

PDF

42.6 KB Created: 2020-08-20 09:00:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 840d12bd82e7b3a9e90b87987c1f8fc1 SHA-1: 0c0b7d1090d2d28235b0f2fef0089e7bf7151e21 SHA-256: 479f646a82e1578ce93f3876c681bb115916b4f0b097096447977b95f87e5119
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=free++hangout+film'. This URL is presented within the document body, disguised as a 'free hangout film' lure. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify domains. The primary malicious intent appears to be redirecting users to potentially harmful content via the ttraff.cc domain.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.cc/pify?keyword=free++hangout+film In PDF document text
    • http://files.christypaw.com/uploads/1/3/0/7/130738993/5226741.pdfIn PDF document text
    • http://files.eccofilmandvideo.com/uploads/1/3/1/0/131071073/wexedoli_musovivukik_jiwewute_kibugej.pdfIn PDF document text
    • http://files.tepoungamarae.org/uploads/1/3/1/1/131163867/1822058.pdfIn PDF document text
    • http://files.burkebros-cheltenham.co.uk/uploads/1/3/0/8/130814411/c1878a8.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/1/0432/0962/1664/files/green_revolution_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/undertale_battle_mode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zovoxumaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1701/8267/files/naluvobowemesobugoxowivif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/your_brain_at_work_david_rock_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2814/2501/files/jokezuzozenevojaxunetuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/72995743430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/velagexujuteni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/allis_chalmers_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vukanuzedatijaxugevune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/47867378189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/66499798326.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 6

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_off000069d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D6 4956 bytes
SHA-256: 62ddb5521967456444c2cbf2f4359dd1f275323e9fca7ff38f6147d6b16ebb39
font_01_sfnt_off00007a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A90 10292 bytes
SHA-256: 2a63f6bb14ef9f202caabfb70b6d07f7f4174353a2830ef267708f9c28b2dcaa

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