Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a638bbf08bcadb2…

MALICIOUS

PDF

46.7 KB Created: 2020-08-24 17:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 916251ce8f13829a03e71a0d896cc754 SHA-1: d5a292e7c8bfeeac31bf39b1ea09c13090d5b2d4 SHA-256: 0a638bbf08bcadb289fd66bfdff1a4c64f690b6abc87a5d329653c799cdac6cc
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, particularly the redirector `https://ttraff.cc/pify?keyword=ccapi+2.+80`, are indicative of a malicious campaign designed to lead users to further malicious content.

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=ccapi+2.+80 In PDF document text
    • http://files.anahatahealing.net/uploads/1/3/0/7/130739146/rixerezudaxoxo.pdfIn PDF document text
    • http://mujesexu.courtneymillerpilates.com/uploads/1/3/2/3/132303382/puxomovebokarurexaki.pdfIn PDF document text
    • http://files.anamericanquilt.com/uploads/1/3/0/7/130740517/rekewizipo_jorezata.pdfIn PDF document text
    • http://files.australianwandarrah.com/uploads/1/3/2/3/132303269/saxisabojokupagomi.pdfIn PDF document text
    • http://files.antstrategic.com/uploads/1/3/0/9/130969438/3113805.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/1/0431/7573/9560/files/malacetic_aural_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4394/6649/files/zevukumulugobira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/zokufobunisuxowewev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/bilale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5436/6877/files/93755843381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7588/7523/files/jezokeregeperat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/jotubixifinil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/46474908795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5379/1909/files/gopexuvomevamugit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/articulos_indefinidos.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: kellybalmaceda.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F38 5028 bytes
SHA-256: 2c81364234a96eb7379fda5b0d211cfcb141ebd0da2164d42752ba4cd1cd0430
font_01_sfnt_off0000805e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805E 14692 bytes
SHA-256: efe14201aa164b3f4b00570f365f39d180ee11b64496b2059fb2a6983c400a87