Malicious PDF — malware analysis report

Static analysis result for SHA-256 58459c1e25b1f011…

MALICIOUS

PDF

49.4 KB Created: 2020-08-27 20:40:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 583b8a6be0cb921101caa43c360b5848 SHA-1: 53161ad37dc4988e2bf0054f266d9e75e8451efb SHA-256: 58459c1e25b1f01129c90fa49a18b63285f7d99157345f3640389e3c78241ad0
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a social engineering attempt to trick users into visiting a malicious URL. The document body, though heavily obfuscated, contains text suggesting a fake error message related to 'live gaming on windows failed to initialize', which is likely a lure. The SE_CLICKFIX heuristic further supports that the document instructs users to execute commands, consistent with bypassing security measures.

Heuristics 4

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.com/pify?keyword=live+gaming+on+windows+failed+to+initialize
    • http://files.davidblyth.net/uploads/1/3/0/9/130969637/kikule_vibakurap_boxapafizag.pdf
    • http://files.aucklandtravelmedicine.com/uploads/1/3/0/8/130814596/5d00d.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/convert_file_to_editable_word_document_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/27167653831.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/uncle_ato_mensuro_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0438/5954/2176/files/fapix.pdf
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/900_basic_english_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/45690646552.pdf
    • https://cdn.shopify.com/s/files/1/0434/1789/5070/files/right_sided_heart_failure_guideline.pdf
    • https://cdn.shopify.com/s/files/1/0436/0863/7602/files/compressed_air_tank_gungeon.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/working_capital_analysis_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/polyglycolic_acid_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/5881/3336/files/dujoxaguwul.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/gulapifeg.pdf
    • https://cdn.shopify.com/s/files/1/0437/2011/4344/files/wufovusa.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_off0000840b.bin
695d321c42563f872b32991c3dad86459923418e530c562e56c1b810d6f9dffb
pdf-font-stream PDF embedded font (sfnt) at offset 0x840B 5276 bytes
font_01_sfnt_off00009619.bin
658fa8676059033766d1083bfe65509c598384d06c3545596f00c4682f98095e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9619 10128 bytes