Malicious PDF — malware analysis report

Static analysis result for SHA-256 3396f6c1f85bcfa2…

MALICIOUS

PDF

45.2 KB Created: 2020-08-18 13:59:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1bd320a000d5eb6e4c027001621cf32 SHA-1: ba09f9a788b1a57be45c53ed6d81a0d67612bcf0 SHA-256: 3396f6c1f85bcfa2354187e98d11af5156208d0303ed7a6c381b6626e16192ad
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external resources, which is indicative of a link farm or redirection strategy. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to 'time management brian tracy pdf free', suggesting a lure to download content. The presence of numerous shopify.com links, while some are benign, are likely part of a broader SEO poisoning or link farm strategy to increase visibility and traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=time+management+brian+tracy+pdf+free
    • http://dufojus.ontarioexplorations101.com/uploads/1/3/1/4/131483281/kotobijuron_reguduvobeti.pdf
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
    • http://files.akcedarbox.com/uploads/1/3/1/4/131409755/zetatip.pdf
    • http://pureto.kyledaviesmusic.com/uploads/1/3/1/4/131453133/5791366.pdf
    • https://cdn.shopify.com/s/files/1/0446/0858/5891/files/s_10_v8_conversion_kit.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/46060962472.pdf
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/moreno_valley_weather_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdf
    • https://cdn.shopify.com/s/files/1/0453/5540/1371/files/faringitis_herpetica.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdf
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/41769407695.pdf
    • https://cdn.shopify.com/s/files/1/0440/1509/1870/files/bachelor_party_invitation_cards_templates.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/30472659225.pdf
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/67096298423.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/59276232723.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/litubowebozifuwulitimane.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/4084770451.pdf
    • https://cdn.shopify.com/s/files/1/0428/5012/3932/files/mcquay_centrifugal_chiller_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5128/files/uk_tier_4_visa_application_form.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000530a.bin
8330f245d6410ac0f621d1cde2534b48e331f06a349cb200b9f2065978fddf73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x530A 9096 bytes
font_01_sfnt_off0000717e.bin
2b45153eafc03c229e36fc583a7070cbeee956b6b1ebe40bd5f9264066b9ba5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717E 5456 bytes
font_02_sfnt_off000083f2.bin
70abf532f20ec25638958b25216f53bb2ecbcbd3bd3e9aae2b0d396c71bfea63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83F2 9680 bytes

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