Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc06a9fadac40694…

MALICIOUS

PDF

45.2 KB Created: 2020-08-19 17:37:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3e40283dfb63cd348c91345fa88cdac SHA-1: d0637bf6bb0b0fc737dffba6fce42615643f7d4f SHA-256: fc06a9fadac40694c4a6b375a99998bfac696b6ba617d20dd71afe9d818da948
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Hr strategy template free' and the malicious URL. The presence of a link farm heuristic further indicates an attempt to distribute malicious content through numerous links, likely to obscure the true destination and evade detection. The primary malicious URL identified is https://ttraff.ru/pify?keyword=hr+strategy+template+free.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=hr+strategy+template+free
    • http://files.washingtonhighclass62.com/uploads/1/3/1/6/131637306/gikumezupes-favigo-noxutumufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/wavafidakatilef.pdf
    • https://cdn.shopify.com/s/files/1/0433/7421/5331/files/88339454897.pdf
    • https://cdn.shopify.com/s/files/1/0432/0323/1903/files/98365835439.pdf
    • https://cdn.shopify.com/s/files/1/0433/5540/6494/files/android_tutorial_javatpoint_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/63351695622.pdf
    • https://cdn.shopify.com/s/files/1/0437/4256/0407/files/wisorafap.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/70806253483.pdf
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/gapim.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/rasudabusanosi.pdf
    • https://cdn.shopify.com/s/files/1/0436/1607/5939/files/53301968125.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/platinum_mathematics_grade_7_teacher_s_guide_download.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_off0000742f.bin
b5daad72a2c33d86f9fd571d37a8ed00c331acb508671d53d475bfb61632b4db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x742F 5284 bytes
font_01_sfnt_off00008618.bin
a12c6c72e759249fd927e4097b3c7e940f3213783fc102c2558569c45e1f226a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8618 10044 bytes

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