Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e10cf0350994adc…

MALICIOUS

PDF

48.5 KB Created: 2020-07-29 14:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58051a2d3f75ff513851629b85e1bb0f SHA-1: b1ac44ca2add2c4a51184fd8cbf5cd18af9a7854 SHA-256: 4e10cf0350994adc46a118d11de3ce7d367b0f60f296404474aa0f91727c94a9
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated, but the presence of numerous external links, including a link to a known malicious redirector, suggests a phishing or scam attempt. The file is likely used to lure users to malicious websites.

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.ru/pify?keyword=kickboxing+training+techniques+pdf
    • http://files.thebarnatlovefarms.com/uploads/1/3/1/8/131871569/6614401.pdf
    • http://files.kcpanhel.com/uploads/1/3/2/8/132815961/1055807.pdf
    • http://files.aspleyclassesforseniors.com/uploads/1/3/1/4/131438541/jagalusiginozekosu.pdf
    • http://files.hvaillancourt.com/uploads/1/3/0/7/130775373/robepe-repasam.pdf
    • http://files.keysofawakening.com/uploads/1/3/1/4/131437236/667910821bf1.pdf
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/55503817053.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/denadeximutimodowum.pdf
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/fepap.pdf
    • https://cdn.shopify.com/s/files/1/0433/2499/7800/files/palijogisenuzejovuveb.pdf
    • https://cdn.shopify.com/s/files/1/0432/4648/5672/files/zurit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83759083977.pdf
    • https://cdn.shopify.com/s/files/1/0438/2241/6029/files/24298537463.pdf
    • https://cdn.shopify.com/s/files/1/0431/4152/9762/files/sedibowibigugebetures.pdf
    • https://cdn.shopify.com/s/files/1/0433/1556/0616/files/78196816481.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5878/files/folotetewenarewetabason.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdf
    • https://cdn.shopify.com/s/files/1/0431/5280/1954/files/tupuwupa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/49812599167.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/45285780487.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_off00008015.bin
83fd38be9330caea889c4f2e19b973a891cc0a4a3641c290502e5218562e0ad9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8015 5636 bytes
font_01_sfnt_off0000931a.bin
5ed3b0ff6df719db39cbe91c73474a0e0ba3e51ea78093d171803de8e4350b31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x931A 9912 bytes

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