Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0d695faf37eeaa…

MALICIOUS

PDF

50.5 KB Created: 2020-08-22 20:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 870bc9aaacf63d4cb7ee128ee347f740 SHA-1: 6938ba077ec5e36aa7b6c763be7bae222e037ca1 SHA-256: 3d0d695faf37eeaa740a6b5a7f31c8af2eb76fdfe29c810cf744204773b6cfbf
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a game guide. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of outbound links, many hosted on Shopify, likely to obscure the malicious destination. The document body, though heavily corrupted, contains text related to 'Animal Crossing' and the malicious URL, reinforcing the lure.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=animal+crossing+new+leaf+all+fish+guide In PDF document text
    • http://files.fodmapfoodie.co.uk/uploads/1/3/1/6/131606630/bb6b7c887ab870.pdfIn PDF document text
    • http://files.coronavirusremotepatientmonitoring.com/uploads/1/3/1/0/131070911/tepiju.pdfIn PDF document text
    • http://files.chel.com.au/uploads/1/3/0/8/130814774/1a1cf6f5d289.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4111/1707/files/86355428077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3581/9173/files/83147317463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/baxopokimuxivufuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2838/5690/files/59071416968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/46539890280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5109/6984/files/vesudikadamomulukadod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golalebilafofuzugetuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/18807719429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/wenebizobopuxotuferifetef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2053/files/13436692965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/26805166820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0432/1177/files/gupuvorajel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9527/7214/files/nifebepivokil.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B8 5316 bytes
SHA-256: d1968f9316697d237a20afaf149970a34c198b98d6c46d4dc9f074c6193aadc3
font_01_sfnt_off00007b8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8C 15640 bytes
SHA-256: 3ef713d4164190cc0f038571cfb7e9638dd6a5a2aa339d36de86c92d208b04e2
font_02_sfnt_off0000abfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFB 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34