Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd563bfcf533fb72…

MALICIOUS

PDF

46.1 KB Created: 2020-08-06 21:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84c16a3eea5d53ba073291ed78fc148c SHA-1: 80c2f63aada170711af60eb250f02b8f9e5a59bf SHA-256: cd563bfcf533fb72de339aeaab12d78cbb0d938c8e0413366da7ad668e31eacc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though malformed, contains the URL 'https://ttraff.ru/pify?keyword=beyond+biocentrism+pdf', indicating a lure to external content. The presence of numerous links suggests a link farm or a phishing attempt to direct users to malicious sites.

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=beyond+biocentrism+pdf
    • http://files.flyingirishmandarts.com/uploads/1/3/0/8/130814676/56afb9.pdf
    • http://files.blackmtnbengals.com/uploads/1/3/1/0/131070604/mubewewajevuwif.pdf
    • http://files.ndhsaa53206.org/uploads/1/3/0/7/130775959/durifapatiwitotu.pdf
    • http://files.elizabethcooperdesign.com/uploads/1/3/1/6/131637055/jolewujiw-zawunesuvaset-lilitutetidaf.pdf
    • http://files.jessesclassics.com/uploads/1/3/0/9/130969242/wizapozojipuli.pdf
    • https://cdn.shopify.com/s/files/1/0435/6240/1947/files/10243213845.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/microsoft_autoupdate_2._3._6.pdf
    • https://cdn.shopify.com/s/files/1/0439/2815/8363/files/74086139690.pdf
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/27819112774.pdf
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/15790503148.pdf
    • https://cdn.shopify.com/s/files/1/0428/5094/3135/files/jifenedowasobim.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/7395650035.pdf
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/61439047400.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/dugiturokunuzujekuterile.pdf
    • https://cdn.shopify.com/s/files/1/0437/1375/7339/files/gububanedadigesog.pdf
    • https://cdn.shopify.com/s/files/1/0430/1389/8403/files/jepidenesinafixagup.pdf
    • https://cdn.shopify.com/s/files/1/0435/8638/8123/files/miporila.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/wejidekokavifak.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_off00007545.bin
9d196282babda4fa4d76c0695226b7adbdbc10d6bf2a06fb623d60eee1b814d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7545 5348 bytes
font_01_sfnt_off00008768.bin
6bc455c9670ccbaca7c1d639b4ed9e16a26164e802b12e1170493f05f63ac31b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8768 10572 bytes

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