Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbd75eb97b400209…

MALICIOUS

PDF

42.0 KB Created: 2020-08-26 03:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38099447404cb51cf6f7c2202a10fc99 SHA-1: ffccd87e4fb4276bd4dff42a64ea22fe88f159d1 SHA-256: cbd75eb97b4002092fe1446885815c6dcd3237cd1f3a97e2d43ef57fd8000d49
214 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.cc', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The document body also contains a callback phishing lure, asking the user to call a number in a billing or security context. The primary attack pattern involves luring the user to click the malicious redirector URL.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=drum+carder+for+sale+craigslist In PDF document text
    • http://sewenujis.sunshinecanyondogrescue.org/uploads/1/3/0/8/130874043/dozosoborifepavigod.pdfIn PDF document text
    • http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdfIn PDF document text
    • http://files.friendsofcampbatawagama.com/uploads/1/3/2/7/132710782/suteranuvep.pdfIn PDF document text
    • http://gipew.youthultimateprogram.org/uploads/1/3/0/7/130775583/wowarefevadufet.pdfIn PDF document text
    • http://files.brazosmetaldesigns.com/uploads/1/3/0/9/130969847/1434662.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/1/0435/2645/5455/files/diwexoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/xugoxumodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5265/files/14953268816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/valewegelawugixale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9742/4026/files/nekegunafunutonepuvutora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/kawisamiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6158/2741/files/les_analyses_mdicales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5215/4532/files/45442076099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/jenidugejuluxivigutifape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3319/3622/files/51837442307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9696/4261/files/14158085843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/givedipinumat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/978753257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/angry_birds_epic_rpg_pc.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_off000065ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EA 5340 bytes
SHA-256: b044b1cdc6bd39e53f1edcdee0b9ecd621e098367e69aa6d786cadfb1fe64aed
font_01_sfnt_off000077f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F9 10168 bytes
SHA-256: 226f42cd68e4bbb0e96182d54652a3b81e2e1a294d94098da9a79528b85f74cf