Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9ca06a7862a7e3…

MALICIOUS

PDF

66.6 KB Created: 2020-07-31 01:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddd2d29c207f7d34b7b0681133146b6b SHA-1: 80e913c2211fe636cbd443c158b3a0010febeb28 SHA-256: ae9ca06a7862a7e3985949c2a8b1f00787bb9e8344e36d753c1ec553c9503cf8
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The presence of a 'download button' heuristic and a large number of embedded links further supports a phishing or scam attempt. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cbse+class+12+computer+science+syllabus+2020+20+pdf In PDF document text
    • http://files.hanssempacific.com/uploads/1/3/0/9/130970016/nenixazokas_vewavonoli.pdfIn PDF document text
    • http://files.sisibcp.com/uploads/1/3/1/4/131410370/47e11ab67996.pdfIn PDF document text
    • http://files.snap-happy.net/uploads/1/3/1/3/131384368/f6a495421ddec4a.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/1/0431/6309/1112/files/midagesaxowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/bixudavodanitaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/26433628482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1324/9946/files/pedisusubarami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/daligezazadudazisofevapop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8713/files/26869275775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/piraxodutudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/nefijokepusubezivurugik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/69281285374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78549170372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2046/files/pafavapugirewaminilaxu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000989c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x989C 5772 bytes
SHA-256: 57f6588f63e104c6998885ed516e2951d0fefdfb66dedda2428ec370fb1149b7
font_01_sfnt_off0000ac29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC29 6568 bytes
SHA-256: 4e583b278a76d70d3ff67b94cffb7285acc03afe7689526d59afdd0e66437bd7
font_02_sfnt_off0000beba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEBA 10340 bytes
SHA-256: fb84878675dccb79498653b443ecf4d6c2456c751dceccefaca8ad7bab853737
font_03_sfnt_off0000e238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE238 17492 bytes
SHA-256: e6236245b1b519c90993a0a0decb83651aa70bd3eb3f1615240c4a875e4479e0