Malicious PDF — malware analysis report

Static analysis result for SHA-256 a896b4a54dc2bed7…

MALICIOUS

PDF

43.5 KB Created: 2020-08-20 08:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c8bfcf9b0b24a6445c801c70d67c5cc SHA-1: 448b72f324cc68e3c1ba3163486ba821bdfcba5e SHA-256: a896b4a54dc2bed7b56928b3ab118615e5cf770de942e70e94f59dd2c740a564
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector identified by the heuristic. This suggests the primary intent is to redirect the user to malicious infrastructure, likely for further exploitation or phishing.

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=bengali+movie+zulfiqar++2016 In PDF document text
    • http://givale.neilanthony.co.uk/uploads/1/3/1/4/131408100/tolezipigebimeja.pdfIn PDF document text
    • http://files.schummwords.com/uploads/1/3/0/7/130740607/9257669.pdfIn PDF document text
    • http://files.seanellishusseycomposer.com/uploads/1/3/1/4/131437599/9663073.pdfIn PDF document text
    • http://files.briana-jenae.com/uploads/1/3/1/3/131379591/jonosujokered.pdfIn PDF document text
    • http://files.wrecklessericpaintings.com/uploads/1/3/2/7/132740270/8645366.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/1/0429/1539/7788/files/kenmore_dishwasher_model_665_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6995/5486/files/50985509050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/aisi_lagi_lagan_original_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/sesupizelomotixesagobadaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0979/8307/files/vipezenovotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0358/8258/files/metformin_hcl_side_effects_rash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4158/files/tanefonatanuwesikip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0345/9230/files/cosmic_gate_fire_wire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5878/files/folotetewenarewetabason.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/betenatadep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2503/8497/files/720838488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3415/5928/files/tropical_breeds_of_cattle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/wuzokesuboromigegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1260/1502/files/24249669314.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_off00006bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFD 5672 bytes
SHA-256: 42b5acff672ec1203581fa181da1cbf33aefae67a191d0543a8e900aa113016f
font_01_sfnt_off00007f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4C 9900 bytes
SHA-256: 47ded243f6aaa07a34c7c314ac702fc074d16eb36590930a171835b140b4e8ad