Malicious PDF — malware analysis report

Static analysis result for SHA-256 f895787f6b8615c4…

MALICIOUS

PDF

43.1 KB Created: 2020-08-06 10:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fdff52f9d23319a9fa54ffc5561ab274 SHA-1: 705e9b41f74fa841752b7667e0b14ba567585dcc SHA-256: f895787f6b8615c4c048f5548469ff3c157adcb1853e080a86670cc25f55fb81
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=relation+between+angular+velocity+and+linear+velocity+pdf'. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. The primary malicious URL is the redirector.

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=relation+between+angular+velocity+and+linear+velocity+pdf
    • http://files.tennisstoreexpress.com/uploads/1/3/0/7/130775402/183576bb6172382.pdf
    • http://files.ashleynmedia.com/uploads/1/3/1/4/131407281/e4e804.pdf
    • http://files.morroandjasp.com/uploads/1/3/0/9/130969375/wojerodijudo.pdf
    • http://files.actingcoachlasvegas.com/uploads/1/3/2/6/132681566/lejele.pdf
    • http://files.danielemonico.com/uploads/1/3/2/6/132696060/nepuke-fipajos-sibifipeguneg.pdf
    • https://cdn.shopify.com/s/files/1/0431/6630/2359/files/engineering_drawing_book_for_alp.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/69798062893.pdf
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/waguv.pdf
    • https://cdn.shopify.com/s/files/1/0445/1673/7183/files/58138427162.pdf
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/basuzamapudizibe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8328/4136/files/bufusowosumupu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51439980706.pdf
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/gajapavekenur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupesuditijativerawepafu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7695/1965/files/the_temple_of_elemental_evil.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/puveges.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/25363830139.pdf
    • https://cdn.shopify.com/s/files/1/0438/9748/7512/files/parowokumebewugune.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_off000066c7.bin
3dc43215c138532051a609790748bcdbc49bcd29606e86b51ffc0265484b0e40
pdf-font-stream PDF embedded font (sfnt) at offset 0x66C7 5548 bytes
font_01_sfnt_off000079de.bin
3b799488684f3eea4a70d57c480a82bc4fb81a57ae36d93787060beb76f0d494
pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 10184 bytes