Malicious PDF — malware analysis report

Static analysis result for SHA-256 380cd160ecec939f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-31 19:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b18b758bcb4f4e62530f5c11d94b518b SHA-1: d1d1e5c59193a6d4647933fec0e1f4bb1a68a8bc SHA-256: 380cd160ecec939ffd813224c3990ed2e486714ac38c7083a98ce20c0693ea59
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=camera+nx+apk+all+version'. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Camera nx apk all version'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=camera+nx+apk+all+version
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/presidential_or_parliamentary_system_in_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rijakilijupefiwopoxafeza.pdf
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/87479899017.pdf
    • https://cdn.shopify.com/s/files/1/0438/5076/0357/files/marketing_project_for_bba.pdf
    • https://cdn.shopify.com/s/files/1/0431/2694/8001/files/95281371044.pdf
    • https://cdn.shopify.com/s/files/1/0437/4419/8805/files/77421189086.pdf
    • https://cdn.shopify.com/s/files/1/0438/3608/0285/files/52556031722.pdf
    • https://cdn.shopify.com/s/files/1/0432/0637/7633/files/rubrica_para_evaluar_lectura_en_voz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/vegikewuvaril.pdf
    • https://static.usrfiles.com/ugd/b8c837_e457ef8d9ca54f368d538eec07eb97c9.pdf
    • https://static.usrfiles.com/ugd/5b5da7_2b620b50d43f4183ae6e87388aaabe02.pdf
    • https://static.usrfiles.com/ugd/6290de_159c7f8ea100486992bc3eb822f6558e.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_off000069d1.bin
c62284e7e43f3e31639c55d172115672054fba49bfc8442d71263c8bbb0b74b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69D1 5064 bytes
font_01_sfnt_off00007af7.bin
a998b2b1a94582c19558e8acfaec1d4e79746d63101e5c0cc49abd0c7588763b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF7 10392 bytes

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