Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e1c9ac93ffc075…

MALICIOUS

PDF

34.3 KB Created: 2020-08-05 09:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d334eea0df5e52bc4fd75e2e44a22f9a SHA-1: 5bf954481bafa688b2972e75c901084dd78ab385 SHA-256: 11e1c9ac93ffc0751110601bfb38c242060485a3ede675a52f82ed4537380e01
162 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which likely serves as a gateway to further malicious content. The document's content, while appearing to be a calibration certificate, is a lure to encourage clicks on these malicious links.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=wika+pressure+gauge+calibration+certificate+pdf
    • http://files.ankionthegroove.com/uploads/1/3/1/0/131070971/7001051.pdf
    • http://files.extremeglamhair.com/uploads/1/3/2/6/132695273/37792b92ec.pdf
    • http://files.melissaairy.com/uploads/1/3/0/9/130969498/488ddbd4845b6.pdf
    • http://zesofaxug.detourla.com/uploads/1/3/1/6/131607062/5610902.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdf
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/89178268708.pdf
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/dasogititulugopife.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/jaxisilirokopefez.pdf
    • https://cdn.shopify.com/s/files/1/0438/9113/0536/files/80978233479.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3414/files/72778765516.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdf
    • https://cdn.shopify.com/s/files/1/0429/6117/4684/files/takaketokib.pdf
    • https://cdn.shopify.com/s/files/1/0430/4440/5397/files/ranubavomafala.pdf
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/41312795342.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/98583406310.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_off00004844.bin
cfec849d2f845e93874c8d2a2ad64753476b280802702550902ea6ef21407e5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4844 5540 bytes
font_01_sfnt_off00005b34.bin
bc6775da4e844a8bbeefbaa538d6d768ebd778e5925cee66b6f1dc19426c2bad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B34 9632 bytes

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