Malicious PDF — malware analysis report

Static analysis result for SHA-256 d10a38bcf946b59d…

MALICIOUS

PDF

90.5 KB Created: 2020-08-01 02:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52f0096be8499bf712aafc4a52e386f2 SHA-1: 357fa8075022a9b0cb51261fdbb3db62246e6308 SHA-256: d10a38bcf946b59d06da9076b096c1bd3cc15dd6e5b7215192f74880cd7678ee
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=conan+exiles+named+armorer'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to lure the user to this malicious site.

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=conan+exiles+named+armorer
    • http://files.langleybahai.org/uploads/1/3/1/3/131384735/8cfe5.pdf
    • http://files.tcp-tcit.net/uploads/1/3/0/7/130739480/sufuxe.pdf
    • http://files.familylavisse.com/uploads/1/3/2/6/132681647/rirevixabakaxep_pafovuwejejisor.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/kivilabitonet.pdf
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/5559423822.pdf
    • https://cdn.shopify.com/s/files/1/0428/6083/9079/files/dakirumazuki.pdf
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/honeywell_chronotherm_iii.pdf
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/78015923187.pdf
    • https://cdn.shopify.com/s/files/1/0437/5583/1445/files/sazefojagar.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/depewigesobedav.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/jejasozukuwenupanuvogadij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gikari.pdf
    • https://cdn.shopify.com/s/files/1/0438/8408/5416/files/6262971407.pdf
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/fananotudadekevivob.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/86752049224.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_off0001182b.bin
b0ab4165ef34259070b73bbde9a4c332606866297986a274f01ed942623372c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1182B 4944 bytes
font_01_sfnt_off000128e2.bin
8fade03cb7ad3c53457f368f0877f492344ebd2c77386c68add87c88fa69a707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128E2 16744 bytes

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