Malicious PDF — malware analysis report

Static analysis result for SHA-256 9df61c5914b0cb1c…

MALICIOUS

PDF

63.7 KB Created: 2020-08-28 12:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a5af0d180b665331c6446bfbacc9f75 SHA-1: 282bcdc2d5cf56914fd2809534416193f8e17a75 SHA-256: 9df61c5914b0cb1c5cefaee76975616f837b42b79ed0e2fe5a41885d779f9fa7
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by the 'Advance Fee Scam Lure' heuristic. The document body, though partially corrupted, contains text related to 'Affidavit of support' and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination or to appear legitimate.

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.cc/pify?keyword=affidavit+of+support+sample+letter+f In PDF document text
    • http://tujugomad.wesselsdancestudio.com/uploads/1/3/0/8/130874388/e40a2cc75dfe0fc.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/1/0434/2205/6600/files/piritolapefutefozopepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0872/8993/files/listview_using_adapter_in_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/search_for_text_in_files_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2771/files/mapa_metro_santiago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/skiena_algorithm_design_manual_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9689/0785/files/deadpool_pg-_13_petition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8789/6482/files/sites_to_nigerian_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4500/3169/files/rugali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/47513221477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0294/3909/files/beginner_gym_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/vavuvuzositifusobim.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_off0000b2d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2D6 2828 bytes
SHA-256: 4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
font_01_sfnt_off0000bcd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD1 5236 bytes
SHA-256: 66121c46578cf25c18fd7ff81ab44f56f0dfa7d2daa7fd9d0f2eadd95525125c
font_02_sfnt_off0000ce90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE90 9788 bytes
SHA-256: bbe2310ee87b4d745aa63e865cc2a9dd4a7deda1584169aa0a9a0a366954a938

Open this report in the interactive analyzer, or submit your own file for analysis.