Malicious PDF — malware analysis report

Static analysis result for SHA-256 366fd4740ca7e02b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-22 14:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 838ed06052fe7d29aef9d94c46cd66b5 SHA-1: c0ada342485ebd1523192794a905ccfb641fc238 SHA-256: 366fd4740ca7e02bde9aecd143e3cd0d483a6bd5f68a3dd9547a65e9974c3f52
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one heuristic identifying it as a PDF link farm. The primary link points to a known malicious redirector. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=anarchy+reigns+pc', which is flagged as malicious. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=anarchy+reigns+pc
    • http://files.accountinguci.com/uploads/1/3/0/8/130873907/wafizelov-josekijaze.pdf
    • http://files.cvhs-bands.com/uploads/1/3/2/6/132682806/644423.pdf
    • https://cdn.shopify.com/s/files/1/0434/3899/7669/files/17059886338.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/fibatokejaname.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/5316427934.pdf
    • https://cdn.shopify.com/s/files/1/0434/8179/2664/files/60934334849.pdf
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/carbon_dioxide_lewis_structure_formal_charge.pdf
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/theory_of_continental_drift.pdf
    • https://cdn.shopify.com/s/files/1/0447/6744/5141/files/bipoloko.pdf
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/swing_components_in_java.pdf
    • https://cdn.shopify.com/s/files/1/0428/5503/9135/files/82123105981.pdf
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/cerebral_palsy_management.pdf
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/frontiers_in_immunology_guide_for_authors.pdf
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/43117881404.pdf
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/bupovevolaritixi.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_off00006d03.bin
f921cb15a763d9acfa8b71783f8d949dd4dff12f6249a3e11ab2fb2995519993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D03 5256 bytes
font_01_sfnt_off00007ede.bin
18128939b2f24386ea93da40c91254a6a0ed2bbe48f508487856ea3c22797a56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDE 10436 bytes

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