Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1e1530dcd225546…

MALICIOUS

PDF

69.5 KB Created: 2020-08-13 23:05:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51d97c2a71de85803f890c1216483fa6 SHA-1: d7c6f7ee72b6f0c894c513d5b746604c71b39019 SHA-256: b1e1530dcd225546f47110387aa459b576a766174355ff7e2519ac600bf67f4f
120 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/wb?keyword=body%20mind%20relationship%20in%20psychology%20pdf'. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of many links suggests a link farm designed to manipulate search engine results and lure unsuspecting users.

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/wb?keyword=body%20mind%20relationship%20in%20psychology%20pdf
    • http://files.8thdistrictlay.org/uploads/1/3/2/6/132682994/adeda9114a33.pdf
    • http://files.graceandtruthministry.com/uploads/1/3/2/7/132740763/vedop.pdf
    • http://files.mayfieldwoodsorchestra.com/uploads/1/3/1/0/131070374/jisekabiwuzo.pdf
    • http://files.kellettcommunications.com/uploads/1/3/1/3/131378899/e0ce7dd29.pdf
    • http://files.uwle.net/uploads/1/3/2/3/132303061/95a919bd.pdf
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/vusoxumakaruwasiv.pdf
    • https://cdn.shopify.com/s/files/1/0438/8775/5432/files/hangman_game_java.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/gidogizedesidipovemozik.pdf
    • https://cdn.shopify.com/s/files/1/0434/7861/4168/files/technical_interview_questions_and_answers_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/79133393851.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6885/files/83593274976.pdf
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/gesojen.pdf
    • https://cdn.shopify.com/s/files/1/0431/6912/0413/files/66015476792.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/robasizazotabor.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/18728915088.pdf
    • https://cdn.shopify.com/s/files/1/0448/3910/8770/files/50937779250.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_off0000d2c5.bin
d99c419409b126b6c18d4f23e9403a9455c7229585809dcfac8f3ce2b701ecc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C5 5720 bytes
font_01_sfnt_off0000e612.bin
6658114ac600b4314f5963f647615c7fa7e890d0823bdf32e84532b9261ee42e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE612 10104 bytes

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