Malicious PDF — malware analysis report

Static analysis result for SHA-256 57a5b7259567ad60…

MALICIOUS

PDF

38.1 KB Created: 2020-08-21 11:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59089eed173045631467848885556b03 SHA-1: 86aa56fefc6933ad6df3228d39f08c1f19cf0f80 SHA-256: 57a5b7259567ad60072e51f5d10c2eada8a1dfa61d2d3219159ac9668580452f
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a redirector. This redirector is configured with a keyword suggesting a software download lure. The embedded URL leads to a known malicious redirector, which likely serves as a gateway to further malicious content or exploits.

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/pify?keyword=adobe+pagemaker+7.+0+for+windows+8
    • http://mixolafa.amusedowl.com/uploads/1/3/1/4/131438437/zamevireniwamog.pdf
    • http://files.lotzmusic.com/uploads/1/3/0/7/130740625/9971523.pdf
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/nuxotelo.pdf
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/60398250576.pdf
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/10491289070.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/materiales_dentales_macchi_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/controls_and_variables_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4811/6119/files/electric_bicycle_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/1730/5240/files/sydney_opera_house_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/tunareletikumigepejit.pdf
    • https://cdn.shopify.com/s/files/1/0440/6181/9045/files/lujunerumugik.pdf
    • https://cdn.shopify.com/s/files/1/0436/5231/7342/files/igi_1_directx_for_android_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/pereminuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/94108049246.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_off00005392.bin
c6cff570b7fa61508c9b018c2204c8164bbd5d23822fa72a4cdf218553fe5d0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5392 6060 bytes
font_01_sfnt_off00006837.bin
d9651b1525cafc8321cf68d0fec89da7a5ca4078f677e3ef9536f7554020ad3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6837 10276 bytes

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