Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f8cd48a9d0e063a…

MALICIOUS

PDF

40.4 KB Created: 2020-08-15 07:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 405550e870385fc76f9c0f139699cf28 SHA-1: 6f3ac90db8e6885e6168e4584266305cf0486a2c SHA-256: 9f8cd48a9d0e063ac51b2384a0b4e1dde60e05bd20af04797504ae13c18e2794
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text "Channel 7 tv guide" and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous links and the redirector indicates an attempt to lead the user to malicious content, likely for phishing or malware distribution.

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=channel+7+tv+guide
    • http://xutomi.pbllab.com/uploads/1/3/1/3/131380429/xarojifum.pdf
    • http://files.saxophonistforhire.co.uk/uploads/1/3/1/3/131378779/gatete.pdf
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/astigmatic_fan_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/5349/8014/files/2475149996.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6273/files/93087061849.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/zumikazefetowoserafijewu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4214/2358/files/aime_cesaire_poems.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/psychodynamic_approach_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/2371/8824/files/nolukovadibu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/rogabenepamakawi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/sector_agropecuario_definicion.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_off000061b8.bin
557a0e85aa28ffc16df52fb360635f435eaa368b63d547832e42bb687be1ecb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61B8 4860 bytes
font_01_sfnt_off00007248.bin
9fb6345ef01b18acd475a004149bf6982d0cfdf4370b57e337a81cdbdbce548b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7248 10280 bytes

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