Malicious PDF — malware analysis report

Static analysis result for SHA-256 a30f5c860a729305…

MALICIOUS

PDF

49.2 KB Created: 2020-08-03 21:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0a9dbc1772e217c55fd778274ce2aa1 SHA-1: 9881951e49c2e9cef0a0e3f322f4626fec899686 SHA-256: a30f5c860a7293057d1252ed9df8f7b879203f2bb2dfc56401e56c661acf684a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm and a redirector URL pointing to 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains text fragments related to 'sap payroll process pdf' and includes the malicious redirector URL and several Shopify URLs, some of which are benign. This suggests a phishing or malware distribution attempt using a lure related to payroll processing.

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=sap+payroll+process+pdf In PDF document text
    • http://files.thejustinreedshow.com/uploads/1/3/1/4/131437930/fizev-faseb-fuvata.pdfIn PDF document text
    • http://files.centertowndfw.com/uploads/1/3/0/7/130738568/82af2a1180f2.pdfIn PDF document text
    • http://files.necbasketball.org/uploads/1/3/1/4/131438013/tawov.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/1/0433/6150/1336/files/wugitulimagupetajufure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/tamana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7250/2425/files/2003_volkswagen_beetle_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0579/6774/files/56093713292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/wulegosasuxoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/xeroferapijutatav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4840/files/gta_san_andreas_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/sepaxeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/14293740653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/gavetiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/sadategapivizax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7569/7830/files/sigixepeveraxogapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9076/3175/files/fasituw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/16344040276.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_off00007696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7696 4908 bytes
SHA-256: b23feee310cd4caaf02b352f722e7a01fdde2cc453ca5a9452448aee67cba390
font_01_sfnt_off00008751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8751 10072 bytes
SHA-256: 0c6c26d16f2e5464447fd30668c4b0cdb62ab2a5facaea6eb22424be46424c18
font_02_sfnt_off0000a9c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9C8 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333