Malicious PDF — malware analysis report

Static analysis result for SHA-256 8af946cd989c12e3…

MALICIOUS

PDF

50.2 KB Created: 2020-08-22 12:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43d6844583b340cfd477719ce957e1f0 SHA-1: 89092050cd1aea2e34262b597c2d0827f5566b31 SHA-256: 8af946cd989c12e3fdd7a3a4880e1688b7fafacad221e39beb8abba3f57805fc
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a direct link to a known malicious redirector at https://ttraff.ru/pify?keyword=pip+camera+photo+effect. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.ru/pify?keyword=pip+camera+photo+effect In PDF document text
    • http://files.cppbap.org/uploads/1/3/0/7/130738562/zikir.pdfIn PDF document text
    • http://mixuv.firstwavecharters.com/uploads/1/3/1/4/131409090/nanufirevefidosedufu.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/1/0432/9072/2454/files/batopulopotabimixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/doruxikipazosetosulido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/sewing_machine_parts_crossword_puzzle_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/79819511285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5219/files/zanelebeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6613/7507/files/doger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/nisuwumeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/51457155247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/27796364937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/59950584555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/matias_ergo_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/11775157202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5986/3961/files/reeds_naval_architecture_for_marine_engineers.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6531 2952 bytes
SHA-256: 6f6c5a8fb5e62cfd2b6ff76f758e0f05a98695d5bac735cd019a42cb5e5649ba
font_01_sfnt_off00006fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBE 5044 bytes
SHA-256: 9fe0d85adec5801eedc984986e0c1aa0ce8daffb2e2dca3c47f923516c183464
font_02_sfnt_off000080c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C0 10836 bytes
SHA-256: f6b5a9506e620a37fd527a76585d76398c20474e1cbfe769bdffe96f74ad08b3
font_03_sfnt_off0000a5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F1 16204 bytes
SHA-256: 837d53279444546af5e72eb575060f9b7bccd83e83f46679d212f7bd99654a1f