Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c62b421236ef78a…

MALICIOUS

PDF

59.0 KB Created: 2020-08-15 05:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c080cc52863d760185ecd98d1a1641d SHA-1: 46aafec1fe3a47cf8bf548d224381305de2e7816 SHA-256: 2c62b421236ef78aab3ffb6f74469a4b4e64f0d3074534aee9a408274067f842
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is a common tactic for phishing and scam campaigns. The document body, though heavily obfuscated, appears to contain text related to a 'spectrum cable tv guide', suggesting a lure to trick users into clicking the malicious link. The presence of a link farm heuristic further indicates malicious intent to distribute links.

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=spectrum+cable+tv+guide+dallas
    • http://files.jdmwebsitedesign.com/uploads/1/3/1/6/131607054/xolifukonomirevasufi.pdf
    • http://makaxam.iamadamgreenfield.com/uploads/1/3/1/0/131070786/duduw.pdf
    • http://files.camellanorth.com/uploads/1/3/1/4/131437605/275eb00bc01.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/93478712857.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/90029053706.pdf
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/5241819967.pdf
    • https://cdn.shopify.com/s/files/1/0436/9294/9658/files/lidenekotetagaramejewo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/16704567471.pdf
    • https://cdn.shopify.com/s/files/1/0437/0700/7127/files/82590558367.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0798/files/74304836454.pdf
    • https://cdn.shopify.com/s/files/1/0438/5246/4293/files/bitat.pdf
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/wijebibumino.pdf
    • https://cdn.shopify.com/s/files/1/0434/4669/8146/files/29452278728.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1362/files/app_cleaner_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/future_self_journaling_holistic_psychologist.pdf
    • http://commons.wikimedia.org/wiki/File:F_Connector.jpg
    • 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_off0000a7ba.bin
4417307854884b53c150871b15fa26a99e8d21f35b4e349938f29e4ee9a8fb47		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7BA 5696 bytes
font_01_sfnt_off0000bb09.bin
d850414716be6758dbe9b4de1b8a31c69f55d5a19dadaf2013072c84692af7bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB09 10420 bytes

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