Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e6ce2978a80e2a…

MALICIOUS

PDF

40.0 KB Created: 2020-08-30 00:55:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 093da644c6c9ab6da29e4aa8ed371082 SHA-1: 94a31a74b38977e9348f41a4399b0146bbf19805 SHA-256: 49e6ce2978a80e2ace49d0c73aa77a316494001a817a54e98dc37ac41400f345
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links, one of which is a known malicious redirector. The document body, though heavily obfuscated, contains text fragments related to 'Easton arrow selection chart' and the malicious URL. The primary heuristic indicates the PDF links to known malicious redirector infrastructure, suggesting a phishing or malware delivery attempt.

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.me/wix?keyword=easton+arrow+selection+chart
    • https://cdn.shopify.com/s/files/1/0456/5198/4551/files/jivutivamezamevunaluwutuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/mugitafufotapud.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/alchemy_emperor_of_the_divine_dao.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdf
    • https://cdn.shopify.com/s/files/1/0429/0805/7759/files/vijuxojugifajumevas.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/sawutukekikizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3345/1944/files/28779114769.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/la_historia_del_loco_resumen_por_partes.pdf
    • https://cdn.shopify.com/s/files/1/0435/6761/2065/files/d_d_4e_monster_manual.pdf
    • https://static.usrfiles.com/ugd/20d83a_47f0e19b0e994adebeb797949f81c1db.pdf
    • https://static.usrfiles.com/ugd/122077_f209b1ff853545e1b403794dab0effa0.pdf
    • https://static.usrfiles.com/ugd/b8c837_0202632f4e124db693db91f62f856c52.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f3e.bin
ea62f5851caff120853f0cf382fb6f65cb43d38525f7616a6ab7733ef3055c16
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3E 4936 bytes
font_01_sfnt_off0000700e.bin
281572392a8e74baefe82d9fce3c6ca00bd0c8d4080ee4db9b214f475869af2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x700E 10416 bytes