Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca705c7fffcf68f2…

MALICIOUS

PDF

41.5 KB Created: 2020-08-20 06:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb9abe7f030abc092188112841bd8fd2 SHA-1: ed9f3f1f8229f73568820624c366ef15405ea1f2 SHA-256: ca705c7fffcf68f25d9af074b5ea04bb6ba8099618559cb58a93a68beb1c03f8
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating an attempt to distribute multiple links, some of which are hosted on Shopify but others on suspicious domains. The ML classifier also flagged this PDF with high confidence. The embedded content, though largely unreadable binary data, contains the malicious URL, suggesting the document's primary purpose is to lure users to external malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=caravaneer+2+starting+guide
    • http://pereboza.dolanalticelawsuit.com/uploads/1/3/2/3/132303382/rigan.pdf
    • http://manufepu.controllerking.net/uploads/1/3/2/6/132695471/4857587.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/tavewasazilu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
    • https://cdn.shopify.com/s/files/1/0434/2274/4741/files/vonubefejosiposawuwida.pdf
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/fallout_4_change_face_console.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/rich_dad_s_guide_to_investing.pdf
    • https://cdn.shopify.com/s/files/1/0430/0124/9955/files/xujuxumugepujulunukonile.pdf
    • https://cdn.shopify.com/s/files/1/0436/9917/5579/files/the_magician_s_land_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3294/files/62116892132.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/89843837757.pdf
    • https://cdn.shopify.com/s/files/1/0432/5526/7496/files/telemecanique_altivar_21_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/28678668995.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_off000065dc.bin
692fbe13d3651f9e3bb2c1643330de6abdd5b3aef5cfdf6107c014ac0cfba2c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 5060 bytes
font_01_sfnt_off00007728.bin
636a59c6c8470c4b7989e71e9ebcd728fea6cbaea727e6036bcd0f1b5de962df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7728 10052 bytes

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