Malicious PDF — malware analysis report

Static analysis result for SHA-256 bada41cd1ca4384d…

MALICIOUS

PDF

127.6 KB Created: 2020-08-10 20:19:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9102783d7493791327569576235e22b1 SHA-1: 6c7a81ee33f99c09cf0e5f923eea546c0bacce49 SHA-256: bada41cd1ca4384df8da77512bd3c7c28bed8a53bd036d7af9e37ea335c2940e
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.ru/pify?keyword=african+union+challenges+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious 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.ru/pify?keyword=african+union+challenges+pdf In PDF document text
    • http://files.chathamhighlandsna.com/uploads/1/3/0/7/130739704/78849.pdfIn PDF document text
    • http://nunev.180degreefinancialcoaching.com/uploads/1/3/1/3/131380600/8584392.pdfIn PDF document text
    • http://files.davidheinick.com/uploads/1/3/1/3/131379049/lotezubo.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/1/0429/9676/0730/files/vevifojuwifixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8920/6174/files/jubebixojufude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0736/7592/files/12171476599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9529/files/nebenuxisamuwinomomoburiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/gatozukow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/sofumuxeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/fodoruzagebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5306/9974/files/honda_70_dirt_bike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1493/8014/files/bihar_map_blank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/72668185325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2664/8985/files/reiki_2_manual.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001d740.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1D740 17420 bytes
SHA-256: 8061aeb56028e3a893c209bb897c9dc75c456178181c2b1c8cb84dbb49800774
font_00_sfnt_off0001920e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1920E 5408 bytes
SHA-256: 10728428d326f4d3c0358744389c73c1f7c05a92b1f14b9466dda5d3a589aa56
font_01_sfnt_off0001a466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A466 16544 bytes
SHA-256: 5e6c98348c4f33f3b6f70407c5faa02eca6e1c067a8441bc6048e4cb7be6933b

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