Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe810c176296cbc8…

MALICIOUS

PDF

427.8 KB Created: 2020-08-12 06:04:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d26f4688e6be7b4d446768bd52a24e9 SHA-1: 7084c03bbedb652bc0dcc2a50eb77fc9605e027f SHA-256: fe810c176296cbc8121cd55b438044fd3387a9df49a6f9649cd2f387de69b87f
142 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=cambridge+english+empower+a1+pdf'. This URL is associated with an advance-fee scam lure, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. The document body, though heavily obfuscated, also contains the same URL, suggesting it's the primary mechanism for delivering the malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.
  • 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.
  • 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.cc/pify?keyword=cambridge+english+empower+a1+pdf In PDF document text
    • http://files.multiaxis.llc/uploads/1/3/2/6/132682171/9616310.pdfIn PDF document text
    • http://files.willowsmeltingpot.com/uploads/1/3/1/1/131163976/pimejagisinilamu.pdfIn PDF document text
    • http://zifazuvo.mccsignup.com/uploads/1/3/1/0/131070036/munap.pdfIn PDF document text
    • http://files.moniquenicolecaston.com/uploads/1/3/1/0/131069915/sawazax_xenasugudag_jilejivo_loler.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/1/0431/8239/1451/files/29728027980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1851/6637/files/understanding_business_statistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/deworenofosav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/dozaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9263/4789/files/anosmia_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/pedezutujolaxevopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6032/1691/files/4609498443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/xomebigosojesixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2663/5157/files/zaxiteperujunebisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1878/6728/files/tabeer_ur_roya_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/norojakibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2017/files/ravi_belagere_book_siddhartha_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006305b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6305B 5472 bytes
SHA-256: 744ca647e56992e645697f3d9d397f5dcb8a750d808ec9844714f186a9b6fe88
font_01_sfnt_off000642d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642D3 18092 bytes
SHA-256: 436a649e0b25bbd56e0174a41ba20a3dedecb16f5c30a08cf9fa11ba3562c844
font_02_sfnt_off00067ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AB6 16580 bytes
SHA-256: ebf4ef91c795bcdcc4f7989d10f81c6d80ce5aae900a42d0e1c2eb1684d60f06
font_03_sfnt_off0006915f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6915F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2