Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f3ae53ee69b5ad0…

MALICIOUS

PDF

39.3 KB Created: 2020-08-19 00:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c805ca03037b063686d263913790e49 SHA-1: 7e712d2ff2d5486ef26fe2495eb394e9f258e432 SHA-256: 1f3ae53ee69b5ad00b75634dd8ec816948d50245101a3c827a7667348b8ecd71
222 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Android 10 custom rom vince' and embeds a link that redirects to known malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms this malicious redirection. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, likely for SEO manipulation or to distribute malicious content. The embedded link `https://ttraff.cc/pify?keyword=android+10+custom+rom+vince` is the primary indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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=android+10+custom+rom+vince In PDF document text
    • http://nopivu.paolocroatto.com/uploads/1/3/0/7/130776054/vijalawudutude.pdfIn PDF document text
    • http://files.therazorandshear.com/uploads/1/3/1/4/131452803/wizuxuvisofi_xokasimesu_mutudugurituj_fitetikikipib.pdfIn PDF document text
    • http://files.lauramckaigpt.com/uploads/1/3/0/8/130813550/4874eff1.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/1/0436/3275/4841/files/37914682102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/nazadijixinezumeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/68270733080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/zipofadomod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/wow_small_furry_paw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/36396486552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/reserus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/bible_quiz_galatians.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_off00005db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 5088 bytes
SHA-256: 7557b813784d617583df2232eaf8389fa155c4f4d05f9b2234858e554497395d
font_01_sfnt_off00006ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 10000 bytes
SHA-256: 92165496579054c44541e845a83bc1677c996fc87a185086c29f7d74b1174e4b

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