Malicious PDF — malware analysis report

Static analysis result for SHA-256 42e1d0fcd01beb8f…

MALICIOUS

PDF

49.3 KB Created: 2020-08-23 06:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b863bf83a5ed63585e6559fb0cfcc25 SHA-1: 5fedd625a98f3457e0dc0434b826fedf9c3544ff SHA-256: 42e1d0fcd01beb8f73b813d6aca606723cf8293a897ad5e9edad0c4c139469ee
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=astrology+app++free'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. The primary intent appears to be directing users to malicious infrastructure under the guise of a free astrology app.

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.com/pify?keyword=astrology+app++free
    • http://mepuguzis.remrovsartwork.com/uploads/1/3/1/4/131407148/pawaxunewimama.pdf
    • http://xojilefi.i95corridormobility.com/uploads/1/3/1/4/131452883/958e4eb09eb.pdf
    • http://files.suzanne-fleming.com/uploads/1/3/1/8/131872238/2016073.pdf
    • http://dagivo.mahimashahverma.com/uploads/1/3/1/4/131406226/winuvixebiretuxor.pdf
    • http://wawivujo.rfcomes.com/uploads/1/3/2/6/132681670/975a393d1.pdf
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/tyranid_painting_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/9456/4252/files/fallout_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/jonidatuta.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdf
    • https://cdn.shopify.com/s/files/1/0431/3533/6605/files/52552898538.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesulemenakasisot.pdf
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/xiponubivonekor.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/66863648035.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063ee.bin
14b54591ce23b62a469b03951da0305f72b9374aea26f0d33614fb0b48f2bf2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63EE 5160 bytes
font_01_sfnt_off00007595.bin
db10b07aa1ba911afaf060b12e2cde8c70dbbf9941f30369d108722010ce9547		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7595 1648 bytes
font_02_sfnt_off00007ddf.bin
f81811470a6f071a39aaf831081c2eed132ac8cb66f4f00ee624b83c100cbf82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDF 10300 bytes
font_03_sfnt_off0000a157.bin
617a67e2ace38568bacab2643c0477991f18afe81143ba867e06014013375f47		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA157 16736 bytes

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