Malicious PDF — malware analysis report

Static analysis result for SHA-256 377054062abb16d4…

MALICIOUS

PDF

42.2 KB Created: 2020-08-13 00:03:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 591785750ab57637adc4f830532896b2 SHA-1: b1fbdf38f8121264c7d5564e46990acdc0ca4cb8 SHA-256: 377054062abb16d420c633c41c4b886a64465e0b1ee6c9bd91642ed8f92b9c9a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to appear as legitimate documents, such as a material safety data sheet for diesel. The primary malicious link, https://ttraff.cc/pify?keyword=material+safety+data+sheet+for+diesel+pdf, redirects to known malicious infrastructure. The document body is heavily obfuscated and contains embedded URLs that likely serve as part of the redirection chain or host 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=material+safety+data+sheet+for+diesel+pdf
    • http://files.modeesthetics.com/uploads/1/3/0/9/130969825/mabojemewelimok_jevevanuroz_kirojati_podive.pdf
    • http://kowivak.firstmatemarine.com/uploads/1/3/0/8/130814328/zawoxegabur.pdf
    • http://files.ntpfx.com/uploads/1/3/2/7/132740339/vizixebexowemow.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/wepiselozixadov.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/cbse_class_12_physics_question_paper_2020_solved_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/87764583215.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/57246385100.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/79054929962.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/legak.pdf
    • https://cdn.shopify.com/s/files/1/0435/1482/2808/files/the_cleveland_show_torrents.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/encuesta_calidad_de_vida.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1567/files/cambridge_latin_course_book_3_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/gimp_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6302/4547/files/84743433592.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_off00005ab6.bin
5047abd7f15beffdeee4fdc721c51adb675fb10313a6ec33e7293b10aa55ba87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB6 5236 bytes
font_01_sfnt_off00006c87.bin
dfabb416027b39698e7aded26630cc064e965fc7c3b66140ff9934ac0103f5ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C87 14948 bytes

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