Malicious PDF — malware analysis report

Static analysis result for SHA-256 74efa377d8707696…

MALICIOUS

PDF

38.4 KB Created: 2020-08-10 04:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce5c4a5b44e5f51c8be3a992021be119 SHA-1: 688209375fde97cb38db4b331fdc36827a6f3111 SHA-256: 74efa377d87076960417937e40e23db97dcfdb5f559f579b7b11f4cf0a60a412
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links, masquerading as a Bible timeline chart, that redirect to a malicious domain. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious infrastructure. While no scripts were explicitly extracted, the document's structure and embedded links suggest it is designed to lead the user to a harmful website, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bible+timeline+chart+jeff+cavins+pdf
    • http://files.kyokushinkaratewodonga.com/uploads/1/3/1/3/131381555/talimoroxovogapubo.pdf
    • http://kakoju.platinumgraphics.org/uploads/1/3/0/7/130776262/c68e643e0e9.pdf
    • http://files.danrebertcreations.com/uploads/1/3/0/8/130873783/togamijudajem.pdf
    • http://files.cwc-jackson.org/uploads/1/3/1/4/131482962/jerodibopavakiwu.pdf
    • http://files.garethworthington.com/uploads/1/3/0/7/130776757/d26288238b6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0454/4040/1566/files/computer_application_in_physical_education_and_sports.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/zibezon.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/72312284114.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/wekazala.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8165/files/maderowutetesufolako.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0437/2476/7400/files/budgetary_control_process_steps.pdf
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/18948449756.pdf
    • https://cdn.shopify.com/s/files/1/0435/3199/3242/files/27786779281.pdf
    • https://cdn.shopify.com/s/files/1/0431/8514/3969/files/89434218107.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005753.bin
5bbc61eceb94679e7a2e6a96409d3a00e8506ae7b667b45d1387d3fd5d78b335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5753 5720 bytes
font_01_sfnt_off00006aa5.bin
db1cef365c8c1e36e3339c3704ae998ec5334cf27d5730fab3d9a2aaa22ccef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA5 10024 bytes

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