Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3e8e14646672991…

MALICIOUS

PDF

106.5 KB Created: 2020-09-01 18:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ef38ff6314d04c3e2ed98b87dd00a20 SHA-1: 0d2716cf107ac5d1171887d93fe58b33f77fdbfc SHA-256: c3e8e146466729915defa0301aacf90005ca56df9f8ea6cf8cbac71229f8acde
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link. The embedded URL 'https://ttraff.link/wix?keyword=biomagnetismo+pares+por+enfermedad+pdf' is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary malicious component. The file's purpose appears to be directing users to potentially harmful external content.

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.link/wix?keyword=biomagnetismo+pares+por+enfermedad+pdf
    • https://static.usrfiles.com/ugd/0dd040_ecbc1f9cb6264e23a07efc93ab32a6d0.pdf
    • https://static.usrfiles.com/ugd/b8c837_608f256606fc4cddb6c01466de91364c.pdf
    • https://static.usrfiles.com/ugd/6203b9_f04feea55405461f95b790473c65165e.pdf
    • https://static.usrfiles.com/ugd/b8c837_74418453645144739cc396119c10d3a7.pdf
    • https://static.usrfiles.com/ugd/353d00_f4f1f37953a04c7fb5252da35e443291.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/tupoludur.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/kunasupidofodu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6273/files/vengeance_sample_pack.pdf
    • https://static.usrfiles.com/ugd/b8c837_5499a6254b394d6bad834e2fde2732b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_b7566470a67f4d2f9b2a0e6f8c7a8f65.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/70934652564.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/motu_patlu_cartoon_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/35805021370.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/93350904883.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/sogofitinej.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_off0001473f.bin
3fe93addc0e5817aefdee8e5f640c0ef4ed2963953775188554ddc264a3c139d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1473F 5168 bytes
font_01_sfnt_off000158b0.bin
c0d6a6e8c40bec1d1371d40869dc654ee56037d0400266a2e97a3066ed813bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158B0 17452 bytes
font_02_sfnt_off00018c72.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18C72 4324 bytes

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