Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09f28eaacb18983…

MALICIOUS

PDF

42.9 KB Created: 2020-08-20 07:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b2cf49a057ecc3de32a06c8f9289a6a SHA-1: 792146dccc3d63c228b5e71769059193a69da87d SHA-256: f09f28eaacb189835010e13bfe734d0368d4404a352ad7aa6e07a96123f9c903
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'update mysql php form example' and a URL that matches the redirector. This suggests the document is designed to trick users into clicking the malicious link, likely leading to further compromise.

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=update+mysql+php+form+example
    • http://lipile.frankieannette.com/uploads/1/3/2/8/132814170/783329.pdf
    • http://files.redigovideo.com/uploads/1/3/2/6/132682802/3108283.pdf
    • http://xolil.maverickwellnessboston.com/uploads/1/3/1/0/131070161/gubisopagal.pdf
    • https://cdn.shopify.com/s/files/1/0447/5430/5175/files/99599634801.pdf
    • https://cdn.shopify.com/s/files/1/0439/8442/1022/files/speed_air_compressor.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/vutufu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/69662691497.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/60104804949.pdf
    • https://cdn.shopify.com/s/files/1/0428/8764/3302/files/77337429965.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/cebuano_grammar.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_off00005ca2.bin
686b45176318fd09b421a35c1c0d729a80a4521b59d29d4b59d119d730cf2bb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA2 5204 bytes
font_01_sfnt_off00006e69.bin
34cc4d4478800c9b06d074062c282445e7c6b719bc7f2a9df260146463874103
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E69 10084 bytes
font_02_sfnt_off000090f6.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x90F6 4324 bytes