Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbc69f1dd767491c…

MALICIOUS

PDF

45.8 KB Created: 2020-08-06 17:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5723191f843a1cf204771f24ced3631 SHA-1: 449b8dd79ea70f2e75ce361db7f359002244ed3c SHA-256: dbc69f1dd767491c855c0d8241e37679c8be81c521a544c5ff506f71e13b78f7
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a garment costing sheet, which is a common lure for phishing. The ML classifier strongly indicates maliciousness. The PDF also hosts a large number of external PDF links, likely for SEO manipulation to improve search engine ranking for malicious content. The primary malicious URL is https://ttraff.cc/pify?keyword=garment+costing+sheet+format+pdf, which redirects to other content.

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=garment+costing+sheet+format+pdf In PDF document text
    • http://jetavul.watchrepaircentral.com/uploads/1/3/1/4/131453645/c8f4c268e267.pdfIn PDF document text
    • http://files.spunglasstheatre.com/uploads/1/3/1/4/131453194/5633219d42a.pdfIn PDF document text
    • http://files.letoilefarm.com/uploads/1/3/0/8/130874634/jiferu-bifudixowobure.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/1/0432/8200/6174/files/jamawul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/satuvax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/sowosaturuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/wilawiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/wasarakubofelene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pitoparejiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/deroxulebusanuwaroled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/jepesezix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7522/3200/files/discord_ping_emote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/chuyn_thnh_file_hnh_nh.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000647a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647A 5568 bytes
SHA-256: 1aaa2e6e99ec79c7327710e1460bfb716c69b23385b0bf9a57ab99f93a2218a3
font_01_sfnt_off00007746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7746 16600 bytes
SHA-256: a32389d16b2edd1b29cdb3cbc7c8d3904ebe262ef7f78093f89e33613c00e4bb

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