Malicious PDF — malware analysis report

Static analysis result for SHA-256 38736e79ed51a3c6…

MALICIOUS

PDF

41.5 KB Created: 2020-08-08 23:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d72ccdc71279ef8f38e507e03f27d67 SHA-1: 49c7957456621a265ed1aa4d9bd31432e2387207 SHA-256: 38736e79ed51a3c6b1affe34df44dc34035d2b77317fe0cd674e73818a0e637b
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, disguised as a Hyundai Accent service manual. This is further supported by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics, indicating a phishing or scam attempt. The embedded link in the document body, 'https://ttraff.ru/pify?keyword=hyundai+accent+2020+service+manual+pdf', is the primary indicator of malicious intent, likely leading to a further stage of attack.

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=hyundai+accent+2020+service+manual+pdf
    • http://files.growinginhisgraceblog.com/uploads/1/3/0/8/130814423/tomifukoletupek.pdf
    • http://files.michigansnowboardmuseum.com/uploads/1/3/1/4/131483955/182843.pdf
    • http://files.mauritzvandenworm.com/uploads/1/3/0/7/130775192/9904956.pdf
    • https://cdn.shopify.com/s/files/1/0438/9391/5800/files/wumod.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/bejopunegigotutirutujime.pdf
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/sewage_treatment_steps.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/wunobatimif.pdf
    • https://cdn.shopify.com/s/files/1/0436/4537/0518/files/sociologjia_anthony_giddens.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/daponinimeluzewisoz.pdf
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/36488383529.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/zositesixemise.pdf
    • https://cdn.shopify.com/s/files/1/0440/6558/7352/files/living_religions_10th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/lafutebim.pdf
    • https://cdn.shopify.com/s/files/1/0431/8383/3249/files/75898438288.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_off000062ec.bin
8ff396ee7ffb00b0904a50f42dd092a2bfa9d12707b6383b3d6472ceee709097		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EC 5696 bytes
font_01_sfnt_off00007644.bin
a4ae22c20e9eeb60342f05081434e2bfbf5d537384e6592c3ddc333ff0bd9883		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 10212 bytes

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