Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e2212d606cc1bec…

MALICIOUS

PDF

36.9 KB Created: 2020-08-30 00:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6406bed31d26eda7da593c909f15496d SHA-1: ca5b6a2bbe76dade87fc38c41d2ba3fb244bc398 SHA-256: 3e2212d606cc1bec1f0b2b7b6f09eb93c0405bb2562e45637642b8eda3b3d2f3
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers this heuristic. The presence of a link farm suggests an attempt to distribute malicious content through seemingly legitimate documents. No scripts were extracted, and the PDF structure itself does not indicate specific exploitation techniques beyond redirection.

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/wix?keyword=libertango+sheet+music+sax+quartet
    • https://static.usrfiles.com/ugd/15cd4d_556e50b6f2a3417ab16c8a60f421945b.pdf
    • https://static.usrfiles.com/ugd/82e28d_3c20e15d750a44cd899eebb7137a6dc8.pdf
    • https://static.usrfiles.com/ugd/8127dd_5687d51daf8a41caa5555172123962f3.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f39249348c1485287adc8aceca958ba.pdf
    • https://static.usrfiles.com/ugd/b8c837_d38ddbb468934632b2c0b4658c6776b2.pdf
    • https://cdn.shopify.com/s/files/1/0435/1541/2632/files/nirugafazuna.pdf
    • https://static.usrfiles.com/ugd/0049ca_8575dc9851304050976f72daafd6acd7.pdf
    • https://static.usrfiles.com/ugd/b8c837_56c69a133a9e4447b6721566e63020f2.pdf
    • https://static.usrfiles.com/ugd/d5d855_82f6fe7816464dec81e22a9b4648c549.pdf
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/mokusebidijab.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/rexusuvi.pdf
    • https://cdn.shopify.com/s/files/1/0436/8600/2838/files/nezuwokilatiwil.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_off000044c3.bin
0cf86b95b746d733e295b801540c4587977a326bc609a9575030b6ae17cee19a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44C3 5336 bytes
font_01_sfnt_off000056b7.bin
3568046a28dffe7fe4b77f494c10a683f70144271f6b0781e504bc0cc60af4c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B7 9840 bytes
font_02_sfnt_off0000787d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x787D 4324 bytes

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