Malicious PDF — malware analysis report

Static analysis result for SHA-256 e83e337db17c206c…

MALICIOUS

PDF

46.5 KB Created: 2020-08-21 03:03:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 913b26dfc47427b8ce62166e16aaa1d1 SHA-1: 4a272593e41e082cdaf78ecc935719e0475a1b4e SHA-256: e83e337db17c206c1732c6c71ff914d4faac9c853d710fd6407f8ee23fffb395
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body contains a link to 'crack para asphalt 8 android' and the redirector URL, suggesting a lure for cracked software. The redirector URL is the primary IOC, likely leading to a further stage of infection.

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=crack+para+asphalt+8+android
    • http://files.edmillersculpture.com/uploads/1/3/2/8/132814977/fb41eb6d9.pdf
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdf
    • http://files.rbryantsmith.org/uploads/1/3/0/7/130739951/nufovepod.pdf
    • http://files.engineeringk12mass.org/uploads/1/3/1/6/131637484/paxif-digobipubasaju.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/setowogisaboxenujija.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/radumebojamepisuravigovom.pdf
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/lasosikixidikavibawuzof.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/muxabevabelebob.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3799/files/90531193554.pdf
    • https://cdn.shopify.com/s/files/1/0445/3220/3679/files/autodwg_to_dwg_converter.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/zimewapuzato.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_off000061c7.bin
538fbc9ef6f8c1f3247f818351a9bc6fdf014229ccd29c95a64e8e6a5695e1c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 5324 bytes
font_01_sfnt_off000073ca.bin
1a686347082deac81cee8ff76b8dc85c2e6e3e37c87b468377ab6c6af83059d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73CA 10608 bytes
font_02_sfnt_off0000984f.bin
2fa4f296fe9e38b1bea2264e65e06c45fbbf4edfcb32b68fd436b1108ab95b01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x984F 16096 bytes

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