Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14a3047b3381ab6…

MALICIOUS

PDF

37.3 KB Created: 2020-08-27 22:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ec52065f5881506576cbac7c84711f8 SHA-1: 3872c2b91825036948d8792f9a0327703e4f465f SHA-256: c14a3047b3381ab6762d1dc10b3edccce7145fd4399f6d7807dddd6e6015d004
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=himnario+metodista+con+acordes'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though partially corrupted, contains the title 'Himnario metodista con acordes', suggesting a lure to disguise the malicious intent. The primary attack vector appears to be social engineering through deceptive links within the PDF.

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.cc/pify?keyword=himnario+metodista+con+acordes
    • http://files.ccsflippinvintage.com/uploads/1/3/1/6/131637136/lawab.pdf
    • http://degajaf.posterworksgallery.com/uploads/1/3/1/0/131070374/duxibumupiruzobivit.pdf
    • http://buzoxape.hannahleatherbury.com/uploads/1/3/2/6/132680813/b9cf32c59285741.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/79879146169.pdf
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/14051847536.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/don_t_look_back_in_anger_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/dokod.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/bepusofarufer.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/33574981246.pdf
    • https://cdn.shopify.com/s/files/1/0433/4551/0568/files/jugojokubimadiwunaxozoto.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/run_appium_tests_on_real_android_device.pdf
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/40711700910.pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/48768716043.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_off00005322.bin
8a70b81bceab34747610bdfe39ccc21faa3e81e7dec9441f78b76470a634548a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5322 5016 bytes
font_01_sfnt_off000063ff.bin
11c805b888a4fbcd8129a8169f1f8856f602ae236de4152a0fd0a73aa12b7394		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FF 11280 bytes

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