Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e86623fcdd40819…

MALICIOUS

PDF

55.2 KB Created: 2020-08-08 11:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80ac164611cd3a02e393182feec4fcd2 SHA-1: e0b8118130eec82a6be7b83e3f6cf48d1ae7c91e SHA-256: 7e86623fcdd4081940a593c958f0d208d995a7164058a821813e4f9ffc153809
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to obscure malicious intent. The primary malicious link, 'https://ttraff.cc/pify?keyword=berliner+platz+2+neu+pdf+kostenlos', is identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing the phishing lure.

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.cc/pify?keyword=berliner+platz+2+neu+pdf+kostenlos In PDF document text
    • http://files.stromungexhaust.com/uploads/1/3/1/3/131398177/vupamas.pdfIn PDF document text
    • http://files.jeremysony.com/uploads/1/3/0/8/130873893/7368313.pdfIn PDF document text
    • http://files.medicalherbalistsussex.com/uploads/1/3/1/4/131483372/jutekegegezevukejulo.pdfIn PDF document text
    • http://files.lordbassenterprise.com/uploads/1/3/1/4/131437306/gegufolewowi.pdfIn PDF document text
    • http://files.soulsurvivorsband.com/uploads/1/3/0/9/130969545/befokosuwaloxew_sarazizug_vanokewoweziwag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1818/9980/files/mojisuzuxuvutawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0049/4237/files/vaves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botudurodakokebavexosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/xufuderixovojixoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/70288233405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/gawiwojen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3196/0474/files/kojodida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0412/files/oligopoly_graph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/buxomejatomifugojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2743/files/wojosavaruxigafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/dapuzagu.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_off0000732f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732F 5212 bytes
SHA-256: ce16817706bc1bf7b42d25ca31e9eef398813e98abc303b250ea1143e850f178
font_01_sfnt_off000084fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FD 11344 bytes
SHA-256: 1f22b81fb51bf6499896315a1397c3d006f039de6169131bef6d98824e91ede5
font_02_sfnt_off0000aa84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA84 16064 bytes
SHA-256: 811776956d0b1f89c09bcbfbcda3f036884cdce0b7857604712f2e3f276a6025
font_03_sfnt_off0000bf30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF30 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230