Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee58b0349aa9a193…

MALICIOUS

PDF

40.0 KB Created: 2020-08-15 04:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff63bf999c08b29e73d0bd9a9c8d9441 SHA-1: 79ab25231d48e8cd6bf82d969db3bcf3f8c2c2e3 SHA-256: ee58b0349aa9a193011f848d054500f7dc8bb6b082356b014d89bb293f8760eb
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as a service manual, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection to a known malicious URL. The document body, though heavily obfuscated, contains the lure text and the malicious URL, indicating an attempt to trick the user into clicking the link.

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/wb?keyword=polaris%20slingshot%20service%20manual%20pdf
    • http://gujidav.cainedelup.com/uploads/1/3/1/8/131856339/663710.pdf
    • https://cdn.shopify.com/s/files/1/0433/5501/3275/files/66406310634.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/fukiterav.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/10205681562.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/72347938054.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/diriwinad.pdf
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/lapodasaga.pdf
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/tudaripifum.pdf
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/lusubuwoxatu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9765/2376/files/gangsta_s_paradise_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0439/5397/9550/files/zimsec_a_level_biology_syllabus.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_off00005da7.bin
a71e41000e192fe00bb4fcaef202d825314c05fe160c1b7f2aac60357d562c94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA7 5632 bytes
font_01_sfnt_off000070a6.bin
b9ad97758543e187f012ddcba883ca84b744aaff1e0050243a4841140dc4f098		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A6 10212 bytes

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