Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03643fb90a2142c…

MALICIOUS

PDF

39.6 KB Created: 2020-08-01 06:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d9b696457998fa4c516802a95398207 SHA-1: 752e219dea6b7a0e6a51c3e0aebb471c55601a78 SHA-256: c03643fb90a2142c70457b6d1a346c0593b5d315565dff94fe25452bc844346f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=pinged+me+meaning', is linked to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com, suggesting a coordinated effort to distribute malicious content or manipulate search results.

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=pinged+me+meaning
    • http://files.dissentworks.com/uploads/1/3/1/3/131380107/3cab21.pdf
    • http://files.aedprockymountains.org/uploads/1/3/0/9/130969993/be91b563a65e.pdf
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdf
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/50737940144.pdf
    • https://cdn.shopify.com/s/files/1/0441/2253/8136/files/fawebibekegejevipaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/4805/0586/files/9475884126.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/14153914499.pdf
    • https://cdn.shopify.com/s/files/1/0433/6258/2693/files/49882806306.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/vorugigemisaxogosuvo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/11289395805.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/koxumugude.pdf
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/zolagezilo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3757/files/70642784897.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_off00005daf.bin
8a23b24aa1327106ceddd3177f67b58b238feb6f1759b667c939850fbd68eec5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAF 4840 bytes
font_01_sfnt_off00006e15.bin
a69ed200d08c0816db3cc3e702a45bd7bccad78a4e49f5cba77b43d094f9f415		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E15 10692 bytes

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