Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29ae68d63bbe17b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-24 11:25:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6093bd57a4efa3e21e2cd970be41bc68 SHA-1: d6472858fd624e9b2223c6db21580c29c6b88c97 SHA-256: a29ae68d63bbe17be9c46e11b62ca975e8536d228e51d5e6361afd06f07d1481
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The primary URL, https://ttraff.ru/pify?keyword=example+of+introduction+psychology+lab+report, is likely used to obscure the ultimate destination of the malicious payload. The presence of numerous links, many hosted on Shopify, suggests an attempt to leverage legitimate platforms for hosting or distributing 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.ru/pify?keyword=example+of+introduction+psychology+lab+report
    • http://xisibij.njalumniconnect.com/uploads/1/3/1/4/131453630/512d1ce.pdf
    • http://ketokuji.newtownyouth.org/uploads/1/3/1/4/131407945/faratafusuzopej-vulodijexonanu-puwezudob.pdf
    • http://gipije.catledgeconcepts.com/uploads/1/3/0/8/130874519/dafedejirow.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/wisuvetivezigumosik.pdf
    • https://cdn.shopify.com/s/files/1/0437/7752/3861/files/jessore_board_jsc_2017_marksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/8911/6836/files/zatoposawosifawunure.pdf
    • https://cdn.shopify.com/s/files/1/0434/6983/2357/files/viturimewugoxeregosarox.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/year_7_baseline_test_maths.pdf
    • https://cdn.shopify.com/s/files/1/0453/8499/0888/files/metro_map_new.pdf
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/32001924744.pdf
    • https://cdn.shopify.com/s/files/1/0434/4391/2854/files/annabelle_full_movie_in_tamil_2017.pdf
    • https://cdn.shopify.com/s/files/1/0434/7186/3961/files/world_economic_forum_tourism_competitiveness_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/direct_indirect_speech_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/58549008319.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_off000070de.bin
049e4a7d97feca9ba13c431b8eb5063bf1a763f2ce329716a3dff8ea9e3fc6d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE 5836 bytes
font_01_sfnt_off0000849d.bin
1f402643ded22b33d0406769371725446435ff0e2819cfa5bb97138cc2515796		 pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 10132 bytes

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