Malicious PDF — malware analysis report

Static analysis result for SHA-256 485a2375820a160b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-07 01:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d20e96f98ce82a70a0328478904b471 SHA-1: 6904c5ef567967dbbf0c352dc0998c5b61bb83c0 SHA-256: 485a2375820a160b49158e2a6e7dc46cf1c4d0eab40ee52bdad69a3980a7af4e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service. This suggests the primary goal is to redirect users to malicious sites, likely for phishing or malware distribution.

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=acetato+de+dexametasona+creme+bula+pdf
    • http://xavol.artichokegallery.com/uploads/1/3/0/9/130969762/994177.pdf
    • http://files.veroniquevanduurling.com/uploads/1/3/0/8/130814121/2250093.pdf
    • http://files.leatherandlacestudio.com/uploads/1/3/0/8/130813948/jeraziwubi.pdf
    • http://files.flowphoto-tahoe.com/uploads/1/3/2/3/132303238/vorejukimomup-nozigo-kavewes-poletusub.pdf
    • http://files.nicolophobiaphotography.com/uploads/1/3/1/4/131452942/3685486.pdf
    • https://cdn.shopify.com/s/files/1/0437/9030/3393/files/zagamupasuzarenasog.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/dudefulunimomuwurazireg.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/vanis.pdf
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/midilaxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/regujoxipebewerejezepak.pdf
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/530053131.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/miscellaneous_compounds_inorganic_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/wepifi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/60495438555.pdf
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/bimewibarawalesamobiko.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/rebopivatatevavetezevapog.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/28889357056.pdf
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/16408459453.pdf
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/bofepukipupelok.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d0d.bin
aeef708e08d1e7ad7ba40403fe5e8c85be9b5a557eb319e6103962f05efef643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0D 5496 bytes
font_01_sfnt_off00007fa9.bin
f206c873c186ef2f3f5730bb1605fddf37c400ff7e2edaec7e587b38f97b3503		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA9 12236 bytes

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