Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c501e6ef0aac10…

MALICIOUS

PDF

40.4 KB Created: 2020-08-21 06:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a59e7e7c2155ef002435aa97f54fdcb0 SHA-1: d642216e25a884c5c2fc8e1e841409e54b4adf16 SHA-256: f1c501e6ef0aac10b72ba873585eec776956bb284e3e9127611551d13972021f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.com/pify?keyword=game+offline+android'. The document body, though heavily obfuscated, contains text related to 'Game offline android' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=game+offline+android In PDF document text
    • http://files.biosciencelabs.co.uk/uploads/1/3/1/4/131483719/720fab99aa8.pdfIn PDF document text
    • http://files.acrosstheinfinitevoid.com/uploads/1/3/1/6/131637016/falezazepiv.pdfIn PDF document text
    • http://xunab.teaandtango.com/uploads/1/3/2/7/132740214/xozezubopezobej.pdfIn PDF document text
    • http://paduji.tgcvdc.org/uploads/1/3/1/8/131871721/4232038.pdfIn PDF document text
    • http://josazi.dedicatedrv.com/uploads/1/3/2/6/132695742/fuxatapotibota_kodewuj_pubivile_barubowigetem.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/1/0464/1429/9304/files/hostiles_movie_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3693/7125/files/linked_list_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9335/files/dipodevusewug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1586/3447/files/wirezesavir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/xupiwimirifufanupim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7946/files/java_6_64_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/the_lottery_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/bemuwatikifagajubular.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0358/8258/files/facebook_page_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/87055383686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/xufazov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/31268619777.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_off00006221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6221 4908 bytes
SHA-256: 10e8104b176dfbf20951ae50cc3ea025ef82d31471a7bca8911a6a9f4d74e4f8
font_01_sfnt_off000072c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C1 10000 bytes
SHA-256: ab48a315577755539cbc4699b9e3550406fa144dd3084665f1abb7fc08d44ebd

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