Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaafb5004561e61f…

MALICIOUS

PDF

46.4 KB Created: 2020-08-18 17:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85a5156ac67e0c47ef54285f012157ab SHA-1: 5bdb6f975742fbd2cf8b9c06b4ef4efd15a623bc SHA-256: eaafb5004561e61f83e3b165acf5816489f66ca162bbfaf41ad03a3884183da9
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 link to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting it is a summary of a book, likely a lure to encourage clicks. The primary malicious URL identified is https://ttraff.cc/pify?keyword=emotional+intelligence+2.+0+summary+pdf, which is designed to redirect users to further malicious content.

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=emotional+intelligence+2.+0+summary+pdf
    • http://files.rwsstem.com/uploads/1/3/0/7/130739288/fetefaf-sanozosi-gopuziwipamixaf.pdf
    • http://files.corinneamelia.com/uploads/1/3/0/7/130775888/fivutuxera.pdf
    • http://wosak.midoripermatech.com/uploads/1/3/0/9/130969060/1571205.pdf
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/65931428592.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/juvas.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/87558196318.pdf
    • https://cdn.shopify.com/s/files/1/0444/5811/5239/files/xapofugajojovubopaguz.pdf
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/47535802568.pdf
    • https://cdn.shopify.com/s/files/1/0437/0523/7657/files/81459477936.pdf
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/kti_bronkopneumonia_pada_anak.pdf
    • https://cdn.shopify.com/s/files/1/0434/0088/8469/files/14461263493.pdf
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/88789517121.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3157/files/vozajotanaluzitakigatosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/kosovekutalilerozukezasej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/argumentos_a_favor_de_la_pena_de_muerte.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_off00007475.bin
d85130bd69027120639d8b891318eeb1bf8b62a1d66c6ec635d96aba9ea7059c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 5840 bytes
font_01_sfnt_off0000884e.bin
e99555b0f4dfb9474a6bc72371dac41a178e453e6ef9d70e1b104c96886ed144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x884E 10560 bytes

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