Malicious PDF — malware analysis report

Static analysis result for SHA-256 35131a70db20541a…

MALICIOUS

PDF

46.5 KB Created: 2020-08-12 12:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cab56d7bf36896a19e468eee083d5be SHA-1: 53c7e02a3c35ac6666b3ff6557b7608758ab4f08 SHA-256: 35131a70db20541a25614b6690c4ce13abf07d2da18c90373de98a2f60377dbf
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, also contains the same URL. This suggests the primary purpose of the document is to redirect the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, and the family is unknown.

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.com/pify?keyword=char+qul+in+arabic+pdf In PDF document text
    • http://files.beebepropertyservicesllc.com/uploads/1/3/1/4/131453456/mujide_dutepisat_wowipe_suxezinabukevip.pdfIn PDF document text
    • http://files.fallencedars.com/uploads/1/3/1/4/131438098/roteselo-lapezosid.pdfIn PDF document text
    • http://files.columbusrabbit.org/uploads/1/3/0/7/130739214/3d35a8.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/1/0437/7346/0631/files/the_explosive_child_ross_greene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5982/2244/files/tujadegevofamepiregami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/sesogutasigen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/99349037751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2806/7990/files/96554645835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/92916867081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9463/7734/files/boiling_point_elevation_and_freezing_point_depression.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/97590191542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/panasonic_ne_1054f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/wurururupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5949/5590/files/1069710416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4189/7113/files/breathing_apparatus_parts.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_off0000618c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618C 5236 bytes
SHA-256: 8ef69a72ea5d85738ef9c962ec3ba40413d5e01fa47c3a1355dea10a3e43fa58
font_01_sfnt_off00007341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7341 9796 bytes
SHA-256: fbb36fc1813f433bcfa3198af5da6131d570d7745ae889d95049bea71babc3b8
font_02_sfnt_off00009508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9508 16788 bytes
SHA-256: 8a89a2c439e95f5ceb4e54924da78d9bded1d00d4d90da990426b17d95c29c04