Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82e3aca5c170324…

MALICIOUS

PDF

40.3 KB Created: 2020-08-19 03:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8931f8abc717b47c901ea567e9d84b1b SHA-1: 9677046cb832e823a22f3daf86c9e0929efbb130 SHA-256: e82e3aca5c1703242671734c45b82e1098cb1e4bcba07eb711b8c8ef0987e620
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=all+new+tiktok+song++pagalworld'. This indicates the document's primary purpose is to redirect users to malicious sites. Additionally, a PDF link farm heuristic suggests the document is designed to host numerous external links, likely for SEO poisoning or to distribute further malicious content. The document body contains garbled text but includes the redirector URL, reinforcing its malicious intent.

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=all+new+tiktok+song++pagalworld
    • http://kifub.chathamkentfashion.com/uploads/1/3/1/6/131636725/piliwuxarutofiwep.pdf
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/98881566528.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/10398462462.pdf
    • https://cdn.shopify.com/s/files/1/0434/0813/0197/files/pdf_to_word_doc_converter_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/5423/4785/files/luwanazalop.pdf
    • https://cdn.shopify.com/s/files/1/0434/8618/3577/files/constant_voltage_transformer.pdf
    • https://cdn.shopify.com/s/files/1/0440/0264/0030/files/aris_gallios_chicago.pdf
    • https://cdn.shopify.com/s/files/1/0439/2802/7304/files/74233734780.pdf
    • https://cdn.shopify.com/s/files/1/0435/7105/2707/files/43631870271.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/gijepadukewejorusogaz.pdf
    • https://cdn.shopify.com/s/files/1/0435/5201/4491/files/5367867350.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/finabedefujeti.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/lefigonotuzakepajarete.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_off0000604e.bin
aa8809f439a9d58974d136f4bfc7ce72a0e10e7ac5d84c395a324e87ce53027d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x604E 5272 bytes
font_01_sfnt_off0000725d.bin
c6a5b41620780eaa040bac6dc2c294b23844d1317681015b86cba03d2c91db71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x725D 10048 bytes

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