Malicious PDF — malware analysis report

Static analysis result for SHA-256 de6162c9ce0c6926…

MALICIOUS

PDF

53.5 KB Created: 2020-08-14 23:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a4c1bb1e6b3167f39b5f1cd6713ba97 SHA-1: 0455660db19f3faa579d1a964be0b5491b4cf033 SHA-256: de6162c9ce0c6926cab55bcf7a66c1b0677f296e3359f6aeac2f569c702716fb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=beulah+nd+weather+report'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0430/0836/0611/files/bilingualism_in_the_philippines.pdf'. The document body, though heavily obfuscated, contains the text 'Beulah nd weather report' and the malicious URL, suggesting a lure for users interested in weather information.

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=beulah+nd+weather+report
    • http://files.hidingfromjapaneseghosts.com/uploads/1/3/2/3/132303374/rowikuxaxe.pdf
    • http://files.studycaribbean.com/uploads/1/3/1/3/131398117/firitadufogexag.pdf
    • http://navufo.dfalvey.org/uploads/1/3/1/3/131379732/sivoxivus_kenitaberiso.pdf
    • https://cdn.shopify.com/s/files/1/0430/0836/0611/files/bilingualism_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/najas.pdf
    • https://cdn.shopify.com/s/files/1/0437/6231/9518/files/polar_fleece_sheets_split_king.pdf
    • https://cdn.shopify.com/s/files/1/0434/9424/4516/files/zudipomidatupidoluradamuz.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/dasifebekadesumemu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0952/1317/files/73745375371.pdf
    • https://cdn.shopify.com/s/files/1/0432/2803/7287/files/53607683370.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/agile_scrum_kanban.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/bankers_adda_current_affairs_october.pdf
    • https://cdn.shopify.com/s/files/1/0435/3300/9047/files/gettysburg_address_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3839/1970/files/navolawuwerekafimin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.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_off00008bec.bin
104e51576bbe93ac34f78a8a1aa72b85a71e099d3720e777dec48c2a5f608b3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BEC 5008 bytes
font_01_sfnt_off00009cf6.bin
d60c7fdd578dad7f7b70e33132beef59ba17190af28eb99820d5b70c22488867		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CF6 14008 bytes

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