Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd7bd8f927ae69a…

MALICIOUS

PDF

45.0 KB Created: 2020-09-11 04:37:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b93742288e7120a8855cec9ba8b8d3e0 SHA-1: 1b6c995fac0bb67b72ab6071e39343f15167172d SHA-256: 2cd7bd8f927ae69a598a76f097195335a7effcf51b31f5fa74e56905c4e4e0df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.link/wix?keyword=group+excel+sheets+mac'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links. The ML classifier strongly supports the malicious nature of this PDF. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the malicious intent.

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.link/wix?keyword=group+excel+sheets+mac In PDF document text
    • http://xogabef.palaeosa.org/uploads/1/3/1/4/131407406/pogupavezup.pdfIn PDF document text
    • http://pubid.highlevelhealing.com/uploads/1/3/1/3/131398560/784964.pdfIn PDF document text
    • http://gafusib.iglesiapiedradesantuario.com/uploads/1/3/1/4/131407668/4b0c381d2109.pdfIn PDF document text
    • http://files.bitsofbytes.co/uploads/1/3/0/9/130969576/gadatesu_sonuzaterusug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/ce5d00_7e911c098a4b4cb58b3824a7ca4b87cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ea78e0_11e0edc60edd43ffbb253a54816c21fd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2f3216_7e1b279eed0141cea340d42026165aea.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6f7357_b7b9cbffc2f74c38bda2b3ffae45bd3b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c4ccc4_a0f53ab1a1e343ea8323c570e0ab3fe5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6699/0502/files/devokigofotas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6847/9893/files/virufikasofetoxefewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/karudamejojaso.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/05e3ad_d7ba44cd164246ed84b0754922ef244d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/23924c_1f2960232fbf41bebc7888901391430c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/299074_c534a8e72207424d8e3959b988dadc3a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/81b904_565a0dbdefd248428eddc68b5af30ca4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a374b9_c82ac2f887794b8db146dab01487ce21.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B70 5272 bytes
SHA-256: f9356716cf315642a4bd4b32d45833803031671ad3b5f7683891e899151bbbf4
font_01_sfnt_off00006d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D39 10384 bytes
SHA-256: 8852bd95055e618cc67df71fae77e9ee6c97850c76f27ae169b5953aaa0e98d9
font_02_sfnt_off000090b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90B3 16460 bytes
SHA-256: 9ef2a6349b357ef261f6e972b77c0b7f36b003af74f6d21dd25b8d2745b9e33f