Malicious PDF — malware analysis report

Static analysis result for SHA-256 906dd6c694287b01…

MALICIOUS

PDF

44.8 KB Created: 2020-08-14 07:36:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6220ee5074a8746778ebb42c91d198c4 SHA-1: 91c12f7b2f4c6b3c9b5bfaec0f9be94491939ad2 SHA-256: 906dd6c694287b0167534d7abd9c0b3286d432955cd9eaa8541e0638ec41e0c9
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is associated with malicious activity. It also features a link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a 'download button' lure and a callback phone number lure indicates a social engineering tactic, likely to trick the user into downloading further malware or engaging in a scam. The document body, though heavily obfuscated, contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=games+not+using+play+store In PDF document text
    • http://files.karenglinski.com/uploads/1/3/1/4/131483002/zetekilegad.pdfIn PDF document text
    • http://files.horseandriderconnection.org/uploads/1/3/1/0/131069781/9866865.pdfIn PDF document text
    • http://files.celebrategreaterplymouth.org/uploads/1/3/2/7/132712558/pigefisop-zugizijototasa.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/1/0428/3020/0991/files/87463239408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/71916660268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/38070690620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/17729862325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/19243797413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/1191210400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5110/0829/files/brigade_fire_and_fury.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/96911824427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/56725508977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5892/0610/files/99661321126.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: celebrategreaterplymouth.org 4 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0B 5272 bytes
SHA-256: 6ce52a282602cb1aac2f8294b840faefcd923d89301ff982919c46539b36dc0b
font_01_sfnt_off00007ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 10764 bytes
SHA-256: bd2d24b267fc8a5dcbfc1c9a4a03cc7612ae2c053506ab2d785b3081ce114247