Malicious PDF — malware analysis report

Static analysis result for SHA-256 de07d5ffe6df8e0b…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 14:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54517f40c50fa55e62cd1cd5561f59a6 SHA-1: 624807ccb5360f1f869624539b9f2bb6e229d1a9 SHA-256: de07d5ffe6df8e0b6227650958396cb2cf8eb82c83461a696f3a976d839fd4ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. One of these links, 'https://ttraff.cc/pify?keyword=marked+crosswalk+guidelines', points to a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to external content. The primary attack pattern appears to be directing users to malicious infrastructure via a link farm.

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=marked+crosswalk+guidelines In PDF document text
    • http://kevoga.libertoonian.com/uploads/1/3/0/8/130874493/jajifipolo.pdfIn PDF document text
    • http://files.packmeinursuitcase.com/uploads/1/3/0/8/130814355/1181197.pdfIn PDF document text
    • http://rufep.mroczekmusic.com/uploads/1/3/2/8/132814930/98621b0b345417.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/1/0438/8470/7992/files/toweta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7532/9441/files/aldose_vs_ketose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/types_of_acquired_immunity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0162/4214/files/mokubaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/7661/8149/files/pdf_file_convert_to_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6374/6453/files/76311042992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/github_permission_denied_publickey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7804/5096/files/69000370480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tebagomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/64817213815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/gorewujiburazijasasi.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
🗂 Part of campaign: khhcommunications.com 5 samples

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C2 5268 bytes
SHA-256: 8750a194e7244d492c6a6bd370dd4870667dfc651fd5e4fdd82dc17c622fefc4
font_01_sfnt_off000079d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D0 10296 bytes
SHA-256: 8e6c9ff9e5d7f0d4959ebb5dbe165068e226137babf4b1a850f3c70db1aafd8c

Open this report in the interactive analyzer, or submit your own file for analysis.