Malicious PDF — malware analysis report

Static analysis result for SHA-256 da707b9eed342570…

MALICIOUS

PDF

112.3 KB Created: 2020-08-24 18:10:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fab3b5f287c9c20b9a7693617c2fae16 SHA-1: 7d143d796918e0cf5cbc6ed53649881b5ec00eda SHA-256: da707b9eed3425702567fa69541d026e7490032008c49acc02ccfd8e6a486f7b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=l+a+p+d+full+form'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute or obscure malicious links. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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.com/pify?keyword=l+a+p+d+full+form In PDF document text
    • http://dedilejo.stpaullevittown.org/uploads/1/3/2/3/132303354/juxekajebase_xejek_fimogijezum.pdfIn PDF document text
    • http://files.montgomery-chamber-music.org/uploads/1/3/2/6/132681325/1565923.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/1/0435/8724/0093/files/maxozapavosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/thesis_title_in_mathematics_education_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5236/2902/files/xilotilibup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9131/9201/files/20514469576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/de_finibus_bonorum_et_malorum_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9235/1907/files/52249920745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/kaverarotawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/international_criminal_law_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1897/6408/files/54193574188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0917/1879/files/lejulasutilugusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/the_tattooist_of_auschwitz_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9067/1771/files/brother_dcp-_l2540dw_driver_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1958/3138/files/zoxavodopetoxevisupebe.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 8

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_off000178b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178B4 4948 bytes
SHA-256: 490d2daf58ea831e453d8215c247fb673b4ba42f07453d9d158c5cbf2f352f7e
font_01_sfnt_off00018970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18970 13272 bytes
SHA-256: c2c762344482c6bcbee203293c35f9022be11a344fdee12f904a070f0105ae9f

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