Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f299022da5466de…

MALICIOUS

PDF

71.1 KB Created: 2020-08-18 22:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 549ded22040367196f211be1b99903c1 SHA-1: c762c119fa88c35f92d8785a463df948d664f36d SHA-256: 3f299022da5466de0c06e70a9ba3fe6412b032e7ce1ad5269355c7b3bf75de8e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with a primary redirector pointing to a site offering 'Apache open office für android'. This is a common lure for phishing or malware distribution. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a coordinated effort to distribute content. No scripts were extracted, but the document body and heuristics strongly suggest a social engineering attack to trick users into downloading a payload.

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=apache+open+office+f%25C3%25BCr+android In PDF document text
    • http://files.votelogan53.com/uploads/1/3/2/7/132741476/jedafivejalam-gasope-sexinax.pdfIn PDF document text
    • http://files.boxerjkd.com/uploads/1/3/1/4/131453805/4133609.pdfIn PDF document text
    • http://files.pmuasia.com/uploads/1/3/0/8/130874213/dugosujurizurori.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000d0f4.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000d0f4.bin)
    • https://cdn.shopify.com/s/files/1/0430/9037/8903/files/baxaruxepogevebojus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/rambabu_audio_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8750/8135/files/assignment_abroad_times_newspaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/14152350672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/diranuxumaguvamuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6011/7160/files/18394847746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9525543421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/givulanowuditu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9551/files/74998291523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1876/9816/files/44504677732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/factoring_with_algebra_tiles_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/gafezuwa.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 extracted file (font_01_sfnt_off0000d0f4.bin)

Related samples 8

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
font_00_sfnt_off0000c144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC144 4460 bytes
SHA-256: 2220b06263d03938ca6d1d4137fd419f558ecb0aab51339ca12af141f96266f8
font_01_sfnt_off0000d0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F4 5144 bytes
SHA-256: dd29f0f8560103dc34e54e301c36396b44d51c68fe29ffcaf450ae81e085f3bc
font_02_sfnt_off0000e230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE230 13584 bytes
SHA-256: e0c5ae10749cbcb26b37d620724264cddc995fe84fd2cb46d7b1283cc18df622

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