Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9bd05b9e5d24414…

MALICIOUS

PDF

62.1 KB Created: 2020-08-19 10:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 435bcf1ce0d2ff66790ccb1c6a0d478d SHA-1: af586d45094f4af7cdec34b471d3c43499c7aa61 SHA-256: b9bd05b9e5d244147a3615ad4eeb32d8dc6000f8ef2f12754c4656197fedfc3b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and references 'Powerpoint 2019 templates', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, including the identified malicious redirector.

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=powerpoint+2019+templates
    • http://vupuzexu.katymorrisonphotography.com/uploads/1/3/2/6/132695465/wagedabizigobu-lelusobafepa-fukexu.pdf
    • http://files.kelownaitalianclub.com/uploads/1/3/1/4/131437283/kuwob.pdf
    • http://files.cpsa124.org/uploads/1/3/2/6/132695451/mupumetepa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/cardioversion_farmacologica.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/thinking_with_type_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/45503089031.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/vabulezuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/choricha_mamla_song_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/49236590419.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4087/files/25563743471.pdf
    • https://cdn.shopify.com/s/files/1/0444/7014/1095/files/bmi_chart_in_kg_and_feet.pdf
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/68607193302.pdf
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/lonawugezosetuluworaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8156/files/53799475468.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_off00009fc6.bin
9debb2c6009102a9a9780cad8af9a534d5704063bf00436a19352e19b5a63564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC6 5540 bytes
font_01_sfnt_off0000b293.bin
dde2b798f388dd58f9a4ec0845b83ae3a4115cbc6a5c8f55fb03df63436178c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB293 10296 bytes
font_02_sfnt_off0000d60a.bin
18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD60A 16144 bytes

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