Malicious PDF — malware analysis report

Static analysis result for SHA-256 d54196dd7d3c9002…

MALICIOUS

PDF

47.1 KB Created: 2020-08-27 12:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bdda9268c256b943053d10308e9f731 SHA-1: 83a655f7d1c22041475d7d90a14e59483de9b25d SHA-256: d54196dd7d3c9002b941a770a91bd7503f74f289e2dbca84df35f963416889eb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a game guide and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and link farm indicate a social engineering attempt to redirect users to malicious infrastructure.

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.club/pify?keyword=haunted+mine+osrs+guide
    • http://files.gottogetgear.com/uploads/1/3/1/6/131606069/836370d.pdf
    • http://files.derek-marsdon.com/uploads/1/3/0/7/130739063/e4ee970.pdf
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/zubixewor.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/sodezuvidibive.pdf
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/zakolim.pdf
    • https://cdn.shopify.com/s/files/1/0436/9560/3862/files/design_and_analysis_of_algorithms_jntu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1070/files/fifirofopojigadatewo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0240/4769/files/ziperan.pdf
    • https://cdn.shopify.com/s/files/1/0432/4173/4301/files/blaupunkt_bremen_sqr_46_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/triola_elementary_statistics_12th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6390/1336/files/kotunu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/employment_news_september_28_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/1987/9079/files/39279645353.pdf
    • https://cdn.shopify.com/s/files/1/0436/7053/6345/files/38661809153.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d6c.bin
c66cb19847385242a348f25b38448dd188962e62d5aee85a9d3dc56616637706		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6C 4956 bytes
font_01_sfnt_off00007e23.bin
65f5784ed0d6e83c7d298b49c7b6e66b555709d04d589eae7f6a33b88c71d99c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E23 10420 bytes
font_02_sfnt_off0000a1be.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1BE 4324 bytes

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