Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8562d96d55ed35…

MALICIOUS

PDF

48.9 KB Created: 2020-08-14 08:59:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45f5a92b493c2d310e2456d218b4872d SHA-1: 6afb60af07cf9e321b725c71a3750061123fa6a2 SHA-256: 1e8562d96d55ed359148579392d5bac0c0df2434c61fb052522a091fff33b08a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is further disguised with a keyword-rich URL. While the document body is heavily obfuscated, the presence of these links strongly suggests an attempt to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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/wb?keyword=panasonic%20air%20conditioner%20error%20codes%20pdf In PDF document text
    • http://files.katiehallarttherapy.com/uploads/1/3/1/3/131379375/987b259.pdfIn PDF document text
    • http://files.stitchedwithcare.com/uploads/1/3/1/3/131383624/dowumi-wefudazebukop-wivavin-tajewowe.pdfIn PDF document text
    • http://files.pondviewmanor.net/uploads/1/3/1/3/131383838/retunidakuvagitin.pdfIn PDF document text
    • http://kofilaf.conversationswiththewomb.com/uploads/1/3/1/6/131637814/5b7d2e4a8aa52.pdfIn PDF document text
    • http://files.popcshelp.org/uploads/1/3/0/7/130738531/savajugofegiwa.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/1/0431/3654/9018/files/casio_fx-_115es_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9023/1974/files/40923773892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/aperture_shutter_speed_iso_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2122/1533/files/59750922476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6975/8874/files/talidokid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/carrier_furnace_troubleshooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1224/1046/files/vupixuwufajonebavopibukaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/wezumet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/37490842200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/zidosusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/shoni_the_shilent_vanilla.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D1 4904 bytes
SHA-256: 72890f5feabfc85066be85185ce28aeaa71338695f479a3f4c68c0c3f1f6a4e9
font_01_sfnt_off0000857f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857F 10108 bytes
SHA-256: 00aca98a15e4cec3e2f8dac2b20b15b13ac8f07d479016c32d7d796f33ca7e1d
font_02_sfnt_off0000a7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176