Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc99a5aac5a784f…

MALICIOUS

PDF

44.1 KB Created: 2020-08-28 13:27:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54ba2c994a4b8cf9b3eec9dca5ec64d0 SHA-1: 34a40d8cfb02e521205a334105fb6efff45a54ff SHA-256: 7cc99a5aac5a784fca3d5235703c0d890fc11fb252f7da982ddea52b746dd561
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the same URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute content through multiple avenues.

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.club/pify?keyword=persuasive+language+introduction+to+ethos+pathos+and+logos+answer+key
    • http://files.owencantrell.com/uploads/1/3/1/6/131606603/1186724.pdf
    • http://files.popmetals.com/uploads/1/3/0/9/130969546/dewoxibu.pdf
    • http://files.the-hafizova-hive.com/uploads/1/3/1/6/131606289/bozotowurikakif.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/81150593344.pdf
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/30600224737.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/fuzotafix.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/pexigobesuzaba.pdf
    • https://cdn.shopify.com/s/files/1/0440/6303/1448/files/borders_railway_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/didigogefaviwaxivipu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5894/4405/files/94704227107.pdf
    • https://cdn.shopify.com/s/files/1/0439/1885/2264/files/19129620303.pdf
    • https://cdn.shopify.com/s/files/1/0438/2742/9533/files/92967024500.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/98081305290.pdf
    • https://cdn.shopify.com/s/files/1/0434/8536/4390/files/biarritz_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/ladewozodiduwubelizazufeb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f14.bin
e275b1f93bd9313fec243d619fcd2ebdc368dc7e4114336e2ff70555570dd8f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F14 5536 bytes
font_01_sfnt_off000071ec.bin
6109ab38fb1b44122f9fd3e62fe012234cb8a26f13d4b70293bb450723551120		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EC 10232 bytes
font_02_sfnt_off000094df.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94DF 4324 bytes

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