Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e225e4b10051511…

MALICIOUS

PDF

47.2 KB Created: 2020-08-20 01:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e4283a8d3315d20862779545857662a SHA-1: d66aee86affdb3c8fbcefe73c904a5b93f6fd936 SHA-256: 1e225e4b10051511d70c1938d4eac3cd5d16850ff39ac25099b74a06df9fc03f
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 ttraff.com, which is used in conjunction with a link farm of other PDFs hosted on Shopify. The document body contains text related to 'Adobe premiere pro cs6 system requirements' and the tool 'wkhtmltopdf', suggesting a lure to trick users into clicking the malicious link. The presence of multiple embedded URLs and the nature of the redirector suggest an attempt to deliver a secondary payload or phish for credentials.

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=adobe+premiere+pro+cs6++system+requirements
    • http://files.marymackaystudio.co.uk/uploads/1/3/0/7/130775490/bivitakudosiduvepo.pdf
    • http://pajupotu.rjensalada.com/uploads/1/3/1/6/131606343/pakirumu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2279/4395/files/bozudikalesif.pdf
    • https://cdn.shopify.com/s/files/1/0432/8567/6188/files/between_the_world_and_me_excerpt.pdf
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/33709738849.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/tafsir_fi_zilal_al_quran_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/3821/0205/files/candombl_de_angola.pdf
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/western_armenian_language.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/rivimunepebijevuwixed.pdf
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/liftmaster_professional_1_2_hp_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/candidiasis_oral_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/ruzevanifanuwiwo.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_off00005ef7.bin
a134cde6a8c5f71888ca69eff6764923aebdd567235ea33504f18a2a1dfa4694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF7 4596 bytes
font_01_sfnt_off00006f54.bin
0f22187fc554dff3525244cdd26388e9afa849e44bf08d913ca09352602bee86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F54 5488 bytes
font_02_sfnt_off000081eb.bin
bf2675796ae66811724484005c81cd331b08fc4de09236d8c086fe03e5c6054d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81EB 14504 bytes

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