Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8e2534345bf005b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-24 19:00:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 741b3cd99f61fa97c1a0509ff7a217b3 SHA-1: 67676f0c5c91d3d665233eae6fd4b36bd881fc61 SHA-256: b8e2534345bf005bb44e28c6569fce23563a4729ef42b2e5c800739738b47447
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm designed to appear as Bible quiz questions, but the primary link redirects to a known malicious infrastructure. The document body is heavily obfuscated, but the presence of the redirector URL and the heuristic firings strongly suggest a phishing or redirection attack. No scripts were extracted from this sample.

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=bible+bowl+questions+answers+exodus+pdf
    • http://files.aznutritiononline.com/uploads/1/3/0/9/130969960/dcc8a025.pdf
    • http://files.rev-pile.com/uploads/1/3/0/7/130739648/bikuka.pdf
    • http://niwig.gtectrain.com/uploads/1/3/0/8/130813528/woxatame.pdf
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/juxugobunisufutaxugow.pdf
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/gekuwipikipir.pdf
    • https://cdn.shopify.com/s/files/1/0434/6416/3490/files/93575605663.pdf
    • https://cdn.shopify.com/s/files/1/0431/4339/7525/files/vulizebizifamesagagozu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4077026649.pdf
    • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/zunesoral.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikosimuzewenox.pdf
    • https://cdn.shopify.com/s/files/1/0437/7529/5640/files/79955814622.pdf
    • https://cdn.shopify.com/s/files/1/0438/2785/5517/files/34929733680.pdf
    • https://cdn.shopify.com/s/files/1/0435/5738/8440/files/lunodoxupuxuwodivubim.pdf
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/collections_in_java_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5253/0845/files/fesalizusinazobukodiwigo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063e0.bin
5a0edff7844e94648d72b8b660f8bc0b60dc2cba23cfdd979c8be4774976c39d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E0 5392 bytes
font_01_sfnt_off0000764c.bin
4d7d6c78219496ce4ae6e20c11d343e190cde2c6880679d41991f4f19274e9ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x764C 10084 bytes
font_02_sfnt_off000098c3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C3 4324 bytes

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