Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f952e642a18adaf…

MALICIOUS

PDF

44.4 KB Created: 2020-08-13 17:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fdd8ac7c767886782b234195acdfc44 SHA-1: 21f3fc96db2f20453f376bd6e59f9c261e2d7f89 SHA-256: 0f952e642a18adaf1814b385f5b87d6da7ecb3bbd4aac2affb05255b24e1dc89
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to academic PDFs and a URL that matches the malicious redirector. This suggests the document is designed to trick users into clicking malicious links, likely for phishing or malware distribution.

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.cc/wb?keyword=electrodynamics%20jackson%203rd%20edition%20pdf
    • http://files.jwfworld.net/uploads/1/3/1/4/131406269/fikevisepomavevo.pdf
    • http://miregarit.myhighlandcreek.org/uploads/1/3/0/7/130739038/7576340.pdf
    • http://files.manateeconcertband.org/uploads/1/3/0/7/130739693/nemifoxekilule.pdf
    • http://zuses.saturnrinanewburnmedportfolio.com/uploads/1/3/1/1/131163651/8410004.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/monanemulupoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/git_bash_permission_denied.pdf
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/peruki.pdf
    • https://cdn.shopify.com/s/files/1/0428/4245/6231/files/describing_personality.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/92226474084.pdf
    • https://cdn.shopify.com/s/files/1/0434/3011/7542/files/change_to_word_document_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/niluti.pdf
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/agreement_termination_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0209/files/cell_cycle_and_cell_growth_control.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/jazajegixinubutox.pdf
    • https://cdn.shopify.com/s/files/1/0434/0636/0730/files/bukip.pdf
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/88694658711.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_off00006d06.bin
f93cabf076d3f5eb326b85f1a2053bea56bfa44526cbcbadaec34f29565a0eb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D06 5664 bytes
font_01_sfnt_off0000804d.bin
40495520824dbf9f8491daa82cbf7b4bf0052d4113d6252ba8c09a74aa1b4beb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x804D 10772 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.