Malicious PDF — malware analysis report

Static analysis result for SHA-256 c508d62b962abb73…

MALICIOUS

PDF

59.6 KB Created: 2020-07-29 17:54:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5255c0f1a1b2d5d6ee449a4c7c9c32a4 SHA-1: 30126e2ae1d999b5032f252e249cf3787f2c7b65 SHA-256: c508d62b962abb73ca74db9327668417e8365a8fe2cddf73d10e671c37697626
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical finding of a link to known malicious redirector infrastructure at 'ttraff.cc'. The document body, though truncated and obfuscated, suggests a lure related to 'form c registration' and includes urgency language. The presence of numerous PDF links hosted on Shopify, combined with the malicious redirector, indicates a likely phishing or scam campaign designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=form+c+registration+pdf In PDF document text
    • http://files.braveministry.com/uploads/1/3/1/6/131636819/a23b47c.pdfIn PDF document text
    • http://files.ohioruralwater.org/uploads/1/3/1/4/131453861/jusupobek-bitikawufedo-vagivewak-zusebalutoliri.pdfIn PDF document text
    • http://files.steppingstonetuition.com/uploads/1/3/1/6/131606901/lamijakotuzuzof.pdfIn PDF document text
    • http://files.perfectstrangersdeeppurpletribute.com/uploads/1/3/2/7/132740805/2063294.pdfIn PDF document text
    • http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.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/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9780/0350/files/nupuwebinupegifekapadako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4436/3678/files/48891837694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/fufaronimosowuzus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3387/7914/files/74565043394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/53120699407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6487/6453/files/gevemubej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/nidowufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2769/2695/files/dimomimososelarokekuxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/kazenogujixazikiseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9956/8795/files/kebekinuzijepekatiwive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6319/6310/files/65253842861.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ada8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADA8 5184 bytes
SHA-256: 95aaa09640de48458076e71af8abc2015f4238574707725f8c2933acc279ea22
font_01_sfnt_off0000bf30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF30 10032 bytes
SHA-256: 5c9bd04f39b6d80044f32ec3b70cc1a6e3ca0da000eab9dd7a36d3641af48abb