Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0dc153d7dfd9d8…

MALICIOUS

PDF

54.5 KB Created: 2020-08-08 13:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f077781b0ccbb537a76a9eee35b4a6a1 SHA-1: 327861757f342b861b75fb7d493f52381f1bdaea SHA-256: ce0dc153d7dfd9d8817b6aec14ee2757c91e4a16ddbf268db676c400dfc20cef
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 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be the same redirector. This suggests the primary purpose is to lure users to a malicious site, likely for further exploitation or phishing.

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=ap+calculus+ab+limits+and+continuity+pdf In PDF document text
    • http://files.naacpmaryland.org/uploads/1/3/0/7/130776042/badikubukisadok_fapata_jemivir_murebagezoneme.pdfIn PDF document text
    • http://files.seabrookband.org/uploads/1/3/0/8/130814805/filukinaw.pdfIn PDF document text
    • http://vagemaviz.newwoodfordhs.com/uploads/1/3/1/4/131407406/7253464.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/1/0431/7904/9121/files/matuniromaxisuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/sherlock_holmes_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/wosekusazib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/67803298089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6133/7494/files/koxefevoxuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7662/4279/files/vefem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/24009209354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4578/9606/files/renewable_energy_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4673/9878/files/wazodokulepalawusutolena.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_off0000759e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x759E 5436 bytes
SHA-256: 89b003f84b89131ab61260b1717064d1de775dfcecd407884905f5c7473509e0
font_01_sfnt_off0000880e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880E 1956 bytes
SHA-256: 56a53b80793a57ae0a2ff185a047ca1e37b57a0e8d64e13b04e3c35c58b8895d
font_02_sfnt_off00009131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 11056 bytes
SHA-256: a83bd5ac6a6d70082363aa568b4360559bb3b35679cfb1dc1eb94b8b44135861
font_03_sfnt_off0000b594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB594 16484 bytes
SHA-256: 1659acb61f231779b055239db44c1b0ac96004b910fff61a47d8ce8555ac19a9