Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0f1e23f5ee4681…

MALICIOUS

PDF

39.5 KB Created: 2020-08-18 18:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70dd00b783c7fd5eea56fbda868b3937 SHA-1: 2302659ebde169f0942554ffcce58d4b2c240e98 SHA-256: fe0f1e23f5ee468134fbb4649ae6be1cb6f6ee53372ff6ca385d45bf476e2589
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=double+spaced+lined+paper+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to redirect the user to a potentially harmful site, likely for phishing or malware distribution.

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=double+spaced+lined+paper+template
    • http://files.airlinesale.ca/uploads/1/3/0/8/130874587/nizanuxiwijezi.pdf
    • http://files.simondeacon.com/uploads/1/3/0/8/130874120/e6a8d68b020bd7.pdf
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/the_duchess_of_malfi_as_a_revenge_tragedy.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6519/files/nexulikuvu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/tizuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/19618851610.pdf
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/98068060312.pdf
    • https://cdn.shopify.com/s/files/1/0440/1243/7662/files/druidic_ritual_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/diablo_2_dupe.pdf
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/induction_motor_vector_control.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/important_synonyms_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1589944702.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_off00005d2e.bin
ceac3038b7d46054fff1b00b1b02a022070396f2a13186f299b5781f3ca4cecd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2E 5356 bytes
font_01_sfnt_off00006f40.bin
dd05630d9373130972faf91f253a22e03601809d7950f17abb7c77425e7858a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F40 9992 bytes

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