Malicious PDF — malware analysis report

Static analysis result for SHA-256 06c7d682aa0f322d…

MALICIOUS

PDF

41.0 KB Created: 2020-08-31 23:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06f40288a08938f6636878093203fc6a SHA-1: 829f3bbb20b71d4ca0199652ecf0d7ed1a5ff8d3 SHA-256: 06c7d682aa0f322d3695a0474ec0835b2774c932beacf05bc6d5f9392a98ec9e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for movie downloads, which is then linked to the malicious URL. This indicates an attempt to redirect users to potentially harmful content or phishing sites.

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.
  • 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.
  • 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.com/pify?keyword=shakespeare+in+love+full+movie++hd
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/01bc73_61e5774f09064bfe82e7a06698069bf7.pdf
    • https://static.usrfiles.com/ugd/b8c837_cb06f4fc32d24063bc83300a14124cc0.pdf
    • https://static.usrfiles.com/ugd/7041e4_7fd226243b7940418048b63ab6e5f9ff.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/xabosafoladezoxusejerisaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9993/8211/files/internet_of_things_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/individual_support_plan_template_surrey.pdf
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/sepaxubatujozazokobanu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/bioenergetics_lecture_notes.pdf
    • https://cdn.shopify.com/s/files/1/0462/3876/1120/files/films_julien_cafaro_winery.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/43664523137.pdf
    • https://cdn.shopify.com/s/files/1/0434/7176/5656/files/30613780963.pdf
    • https://static.usrfiles.com/ugd/d162e3_ae7b257a4970408c9d0dffa5bd94e2d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_1d561bd7e3df411cb018252ae87adcdf.pdf
    • https://static.usrfiles.com/ugd/3ce946_06f94170d2254795accf75278e90582d.pdf
    • https://static.usrfiles.com/ugd/b8c837_959b61ec5f3b49cfb7a88e3d73054a9f.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_off00005fcd.bin
65c6d63c75f492974c6445364735c6f70d74be0da951598bf74314783a2d9795
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCD 5508 bytes
font_01_sfnt_off00007266.bin
fc491a4a715ba831270d39736ad817b598a9bbcf18edcbbba653b391a9acce02
pdf-font-stream PDF embedded font (sfnt) at offset 0x7266 10996 bytes