Malicious PDF — malware analysis report

Static analysis result for SHA-256 d17d808cde01e104…

MALICIOUS

PDF

53.2 KB Created: 2020-08-07 22:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d47373bae6b85730f8316c6d8106db6 SHA-1: fc2ff84491e2bb755ac1a6834b8ddc98d4fdf5b4 SHA-256: d17d808cde01e10489d3cec3f44c95f4fa2ed56a67c263e338074b20f0696e49
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=abraham+maslow+hierarchy+of+needs+pdf+download'. This suggests the document is designed to trick users into visiting malicious sites by posing as a legitimate download. The presence of numerous Shopify links, while some are benign, contributes to a link farm strategy to improve search engine ranking for 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=abraham+maslow+hierarchy+of+needs+pdf+download
    • http://files.howtronics.org/uploads/1/3/0/8/130814861/momapemivupowes_bofajimuri_kemomunerebifaz_muposuxax.pdf
    • http://files.amarisspa.com/uploads/1/3/2/6/132695805/desogawusigo_gamixubusinag_doxefezebobowen_mipuvemukoro.pdf
    • http://files.ibstonecircle.co.uk/uploads/1/3/2/6/132682976/e55a22bf8b1.pdf
    • http://lezukater.emilyannphotographs.com/uploads/1/3/0/7/130740522/5813543.pdf
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/4071938752.pdf
    • https://cdn.shopify.com/s/files/1/0432/4920/5405/files/bejavosef.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/gba_pokemon_firered_omega_hack_cool_rom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5866669006.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/14159011317.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/85813731562.pdf
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/41962442599.pdf
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/53178989146.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/1680201180.pdf
    • https://cdn.shopify.com/s/files/1/0438/0252/5856/files/banned_books_of_the_bible.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5911/files/37685872919.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/74259682432.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/74671770847.pdf
    • https://cdn.shopify.com/s/files/1/0432/1073/5780/files/apiculture_lecture_notes.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_off00006391.bin
5595ebc1a00962388fee2e6aa5157af4b8d8fff9790c9687004bd8c8989d8356		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 5716 bytes
font_01_sfnt_off000076ea.bin
d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76EA 3720 bytes
font_02_sfnt_off0000824d.bin
2c5955bac05f11eccee8c24c6bd71b4d7b48df5cdfb6368cd296cbe71b0b1305		 pdf-font-stream PDF embedded font (sfnt) at offset 0x824D 10488 bytes
font_03_sfnt_off0000a5c3.bin
d543d2463e9764d1417446f59b5409acb7ad1df63836d27c390c4f4c447420c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5C3 9376 bytes

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