Malicious PDF — malware analysis report

Static analysis result for SHA-256 089293d9d7fa4779…

MALICIOUS

PDF

43.6 KB Created: 2020-09-03 00:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d094e13c24210e6011e6a9990f4ffbc0 SHA-1: 52653f2df7c659ed1292e9109c049ff45464674a SHA-256: 089293d9d7fa47793a503fe6ee757d6991786172247d80b73fb66664c8a1f8c6
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.com' with a keyword suggesting cracked software. The document body also contains this URL, reinforcing its role as a lure. While no scripts were extracted, the presence of numerous PDF links, many benign but one malicious, suggests a link farm designed to distribute malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aimersoft+video+converter+crack
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/vakotuwagizenapowugi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/bpsc_assistant_answer_key_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7693/5070/files/ansys_16_workbench_tutorial.pdf
    • https://static.usrfiles.com/ugd/a18aa6_4d64e29925dd48da9d999b4f221ee18c.pdf
    • https://static.usrfiles.com/ugd/e2f197_b85eb01ae06347d2969724b97a1dc4eb.pdf
    • https://static.usrfiles.com/ugd/185811_0a34335625d5453684d3053aa2418433.pdf
    • https://static.usrfiles.com/ugd/50c35f_9ad4192c87e14b0b8fd6b8e345611886.pdf
    • https://static.usrfiles.com/ugd/41a0b6_ead0514307494645b590eddd60bd0ee5.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab1ce2e910374072bfb857a175e262b6.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_e9b91a7dab79448a9d48d54c4629d560.pdf
    • https://static.usrfiles.com/ugd/b8c837_67223690712b47959c7584093a5416d9.pdf
    • https://static.usrfiles.com/ugd/4117a9_ec0ce933391b4f95bba51efedb9552ea.pdf
    • https://cdn.shopify.com/s/files/1/0431/8288/2980/files/zemujow.pdf
    • https://cdn.shopify.com/s/files/1/0461/0732/8675/files/rorunig.pdf
    • https://cdn.shopify.com/s/files/1/0433/7329/7814/files/28416389020.pdf
    • https://cdn.shopify.com/s/files/1/0434/4637/0471/files/alexa_app_android_uk.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_off00006c15.bin
154fc4432a859c110f021e9e4ea4d86ad8cbe7b02d13dc39d01737ea48e97367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C15 5248 bytes
font_01_sfnt_off00007de0.bin
5e1dd88bc992a895af8b42a30b775a2259a7ccf1d7574c5863b62eff357798da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE0 10360 bytes

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