Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b49049c9122d278…

MALICIOUS

PDF

49.9 KB Created: 2020-08-11 23:26:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03364d1447a66e466aca3d8028a2b806 SHA-1: 7f69ef36cbf9638c03323289246163ca055053cb SHA-256: 0b49049c9122d278a3714769b6d2c59332b8cb4247e918387be1384b9a104458
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to `https://ttraff.cc/pify?keyword=blasted+sarah+kane+pdf+espa%25C3%25B1ol`. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning attempt. No scripts were extracted, but the presence of the malicious redirector strongly indicates a phishing or scam 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.cc/pify?keyword=blasted+sarah+kane+pdf+espa%25C3%25B1ol
    • http://files.jewelz4you.com/uploads/1/3/0/7/130776498/388f4e90a61cd3.pdf
    • http://files.gitaarlesdamwoude.nl/uploads/1/3/0/7/130776500/vararuxijakunu-buradowitarosaf.pdf
    • http://files.abstractmachina.com/uploads/1/3/1/3/131383342/vipulidix.pdf
    • http://files.mychristianoccasion.com/uploads/1/3/0/9/130969740/829019.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/juxabusedikolesumud.pdf
    • https://cdn.shopify.com/s/files/1/0432/0562/3972/files/wabufiwerovomowedipugo.pdf
    • https://cdn.shopify.com/s/files/1/0447/9886/9653/files/62498843227.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/fiziledole.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/pejibup.pdf
    • https://cdn.shopify.com/s/files/1/0431/3055/2474/files/advantages_and_disadvantages_of_centralized_and_decentralized_curriculum.pdf
    • https://cdn.shopify.com/s/files/1/0429/1595/4847/files/95922468834.pdf
    • https://cdn.shopify.com/s/files/1/0432/3845/7501/files/5321037417.pdf
    • https://cdn.shopify.com/s/files/1/0433/8994/3975/files/jumesigid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/jabukinoji.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007542.bin
6eb995d35bbcbc509d68c1996e9c8a5b6e06c948099a6b6921bc203168fe7a94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7542 5192 bytes
font_01_sfnt_off00008691.bin
da38cd45ab837259efcbfd5bd01481e906c4e6ad4073ec6e1fc940ce37d0af30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8691 10444 bytes
font_02_sfnt_off0000aa05.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA05 4324 bytes

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