Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e73949239f56001…

MALICIOUS

PDF

67.3 KB Created: 2020-08-19 10:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 843eaac73ae361b883c369e9d77c5476 SHA-1: d7ae337fc06a7709c947c8c3021ef23af7ac1e88 SHA-256: 4e73949239f56001d471b03321271911bde23f4f8f4f31cf10bca6ca6ad99152
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to the 'Intergovernmental panel on climate change report 2007' and the malicious URL. This suggests a phishing or social engineering attack aiming to redirect users to malicious content.

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=intergovernmental+panel+on+climate+change+report+2007
    • http://files.trydesertsky.com/uploads/1/3/1/4/131438203/671a0.pdf
    • https://cdn.shopify.com/s/files/1/0432/6686/7362/files/45625348596.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3382/files/origen_y_expansin_del_cristianismo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7978/files/engineering_drawing_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/xugunaninomivuwunevowuke.pdf
    • https://cdn.shopify.com/s/files/1/0450/6910/7352/files/58786739326.pdf
    • https://cdn.shopify.com/s/files/1/0429/6504/1311/files/free_rp_codes_no_survey_2016.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/kagarabamo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0586/0248/files/role_of_organic_matter_in_soil_fertility.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/68902292282.pdf
    • https://cdn.shopify.com/s/files/1/0436/2688/9374/files/26574385260.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_off0000c931.bin
8b679705c16cf230e73197761ea54b6dd72c2fc1d343f2c89b903e2e1e1d22f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC931 5520 bytes
font_01_sfnt_off0000dbd1.bin
c3a5c785f0500bdc0facd06cfdfb74961a0bd3ec66492a7470e23f1714de37ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD1 10700 bytes

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