Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee399f83b90aa077…

MALICIOUS

PDF

42.9 KB Created: 2020-08-26 00:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53cc3db980aedb44c58513cb51718517 SHA-1: 3850c5b294d790c93eb8413087fcefffbb55e701 SHA-256: ee399f83b90aa077cd020bd5afbbab831e4e84e216d8b181e8383d9fe87407f7
120 Risk Score

Malware Insights

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

The PDF file contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Mcclelland's acquired needs theory' and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=mcclelland%2527+s+acquired+needs+theory
    • http://rewazedi.bonedaddycrafts.com/uploads/1/3/0/9/130969280/sesefewefem.pdf
    • http://files.growingupcatholic.com/uploads/1/3/0/9/130969045/wotegubowisenofixek.pdf
    • http://files.uniqueclassrooms.com/uploads/1/3/2/8/132814276/7167984.pdf
    • http://xosonewu.jaimeclanachan.com/uploads/1/3/1/0/131069839/xosatupexofenik.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/wiwenixisegali.pdf
    • https://cdn.shopify.com/s/files/1/0434/2471/0807/files/posolejakebikumafazuku.pdf
    • https://cdn.shopify.com/s/files/1/0458/6228/9561/files/32107489617.pdf
    • https://cdn.shopify.com/s/files/1/0450/8519/6453/files/98621507949.pdf
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/21677454034.pdf
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/91265471626.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/97365012381.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/kefedabese.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/food_and_beverage_director_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/norumafugajafuru.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/
    • https://cdn.shopify.com/s/files/1/0450/8519/6453/files/98621507949

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068bc.bin
5f6a1900c0ef03c6538990991fdc475cd9cb9f9a4449400cfaf0e5b9784ea112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BC 5296 bytes
font_01_sfnt_off00007abc.bin
ffb89cc72e6c7745cab7729d22eba72cb4f43000302379261d9c9bd492ed1cf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABC 10740 bytes

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