Malicious PDF — malware analysis report

Static analysis result for SHA-256 27baddea0c41652f…

MALICIOUS

PDF

51.1 KB Created: 2020-08-05 23:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7824bb89eb7a05ac423b1fba1b43d6f6 SHA-1: b82808856ceeb36fb98bcf1f79f0f633dd3925d1 SHA-256: 27baddea0c41652f73c5ce296188e857d9fbf2fcd92743e8fcc0ce3d48897a96
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=paramahansa+yogananda+autobiography+of+a+yogi+pdf'. This indicates the document is designed to redirect users to potentially harmful content. The presence of a link farm heuristic further suggests a malicious intent to distribute links. The document body itself contains garbled text but also includes the same malicious URL, reinforcing the attack vector.

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.cc/pify?keyword=paramahansa+yogananda+autobiography+of+a+yogi+pdf
    • http://files.etnoarmenia.com/uploads/1/3/2/6/132681207/2320831.pdf
    • http://files.zenobirr.com/uploads/1/3/2/6/132682851/e8c85cc3500.pdf
    • http://files.luna-solyoga.com/uploads/1/3/1/4/131437770/tukabaporizij-wowukit-nezibenewumix.pdf
    • http://files.merakidestinationmanagement.com/uploads/1/3/0/8/130813606/xedazonoboburug_fetemodevija_noxem.pdf
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/80227623431.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/2003_jeep_grand_cherokee_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/tamorujukovojo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/35342217605.pdf
    • https://cdn.shopify.com/s/files/1/0433/9079/5934/files/basic_english_conversation_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0448/4320/4765/files/photoshop_unlock_layers.pdf
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/wugapulilaferoguvubajig.pdf
    • https://cdn.shopify.com/s/files/1/0430/3978/5111/files/6249275129.pdf
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/78457220079.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/42744911500.pdf
    • https://cdn.shopify.com/s/files/1/0428/9321/3855/files/36648458129.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_off00008848.bin
33b7e75842e92c91b3c360c03f8883e54bb05f739e7d809d6b8d20348a3c4024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8848 5664 bytes
font_01_sfnt_off00009b6b.bin
51fdc8e802102d8ea6b57b208f0a5d6db640296fc36d89c1242f9c60173c9432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6B 10320 bytes

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