Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bde1906d803af4c…

MALICIOUS

PDF

40.7 KB Created: 2020-08-30 19:56:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd6298e9d584c7f13afdc405e7c7db89 SHA-1: 96140f5d1394c295da5ac36a0622f3a781fdf64c SHA-256: 0bde1906d803af4c81aaff65f75cf3acad86b700b90f1154d002f32fe7883dcd
154 Risk Score

Malware Insights

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

The PDF document contains a lure for a "Coco full movie free download" and embeds a link to `ttraff.com`, which is flagged as a malicious redirector. This indicates a phishing or scam attempt designed to trick users into visiting a malicious site. The ML classifier also strongly flagged this PDF as malicious.

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/wix?keyword=coco+full+movie+free+download+in+tel
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/756799_4af663ff028b44ec85f3292d427d5df7.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f73c7d0a84141f9b3453a32242d03eb.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d21d8e49165415cbea1705a388e3f00.pdf
    • https://static.usrfiles.com/ugd/b8c837_2e20cf22dcff4ccd9db6f99ace2f907b.pdf
    • https://static.usrfiles.com/ugd/078c79_168efd158f484ff884feea22548498ec.pdf
    • https://cdn.shopify.com/s/files/1/0428/8996/9820/files/american_college_of_radiology_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/understanding_viruses_teri_shors.pdf
    • https://static.usrfiles.com/ugd/0df15e_9147b2fc4acd42d0bf99787b1ceb49c9.pdf
    • https://static.usrfiles.com/ugd/98857b_00f76ca85ebd40ccb23ce121d4a92907.pdf
    • https://static.usrfiles.com/ugd/b8c837_caf11b25bd3c4c5dbfa9e42c57cfc09e.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd2bf63063094d45a54e2272c34f540a.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/rixekin.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/najozugewizuvakeja.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_off00006097.bin
2ee9439dda74e32497d95773174a650a419c5f1e7170c4af6b129eaf6b90f88c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 5048 bytes
font_01_sfnt_off000071b8.bin
a36fc843590cd9820585d9e7412dd058e383de995a23ab89a1f9411d39713ee1
pdf-font-stream PDF embedded font (sfnt) at offset 0x71B8 10752 bytes