Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f07f7e15c17124…

MALICIOUS

PDF

148.6 KB Created: 2020-08-22 03:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87c9ad9e863e64ee8067dd3c33996839 SHA-1: db34aba7986ac3d5680423a14c640037cfecbe50 SHA-256: 62f07f7e15c17124f72ac8d9aaaaa3217fcbb594a9e9a30735f5ea891d6db124
134 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for an advance-fee scam lure, indicating a fraudulent intent. It also includes a link to a known malicious redirector, which is likely used to deliver the final payload or lead the user to a phishing site. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=cars+2+movie+free++in+tamil
    • http://files.stephanieseguino.com/uploads/1/3/0/7/130739628/789ecfe.pdf
    • http://files.eyphotobooth.com/uploads/1/3/1/4/131437123/6343137.pdf
    • http://files.lawsmosis.com/uploads/1/3/1/4/131453698/rilovovodotino.pdf
    • http://files.dwarvenworkshop.com/uploads/1/3/0/9/130969312/545f8b6bc332a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/how_to_change_your_discord_name.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/rakog.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/vande_mataram_lyrics_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0428/6378/8188/files/access_control_list_notes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7770/4607/files/registration_form_in_bootstrap_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/96215145503.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/ruforobivitopapufigewaf.pdf
    • https://cdn.shopify.com/s/files/1/0436/0096/9896/files/wonirudumejuvopuziveb.pdf
    • https://cdn.shopify.com/s/files/1/0431/8442/3073/files/2d_character_design_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/8239/0440/files/naxipeniwukigavosesulut.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/christian_wedding_ceremony_order_of_service_template.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020d5e.bin
f40e4a1c0a2955ecd260d2005e6f2931243111036f34a222a7f084af3cea0472
pdf-font-stream PDF embedded font (sfnt) at offset 0x20D5E 5008 bytes
font_01_sfnt_off00021e5c.bin
3cca1c3f1d2d6139b95b344640ce6bb074226f8472ca36c6a2b03109e831034f
pdf-font-stream PDF embedded font (sfnt) at offset 0x21E5C 11316 bytes