Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27f97d5d89a188a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-25 10:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bec2106957d2cfb3f84fc8625642fa9 SHA-1: c23466024f97ca1c658fafe443c714dab03a11f0 SHA-256: c27f97d5d89a188aeb32d90ddbb9c2207beee3c2cd775a505871b3d7979f4567
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=bhojpuri+video+dj+song++3gp', suggesting a lure to malicious content. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm strategy to obscure the malicious destination. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=bhojpuri+video+dj+song++3gp
    • http://gomevaw.grissomchoir.com/uploads/1/3/1/0/131071057/karene_wezupimobepuwu.pdf
    • http://files.livethebelife.com/uploads/1/3/0/7/130775373/1648513.pdf
    • https://cdn.shopify.com/s/files/1/0438/9958/4680/files/29285674118.pdf
    • https://cdn.shopify.com/s/files/1/0437/2715/9448/files/rassembler_fichier_en_ligne.pdf
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/resexivotinatuzadufed.pdf
    • https://cdn.shopify.com/s/files/1/0465/0562/3710/files/4_hour_body_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/6936/4632/files/tenancy_agreement_form_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/7906/6009/files/gedavilogixarinamegaxojun.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/41780237157.pdf
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/castelli_s_virgin_widow.pdf
    • https://cdn.shopify.com/s/files/1/0432/1450/4093/files/71681825702.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_off0000543e.bin
fc50f46d62530683da303ed9c765384dda1662d27de038d3a3ba31ea1087a7b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543E 5128 bytes
font_01_sfnt_off000065ae.bin
4e0a8af868ad792f97071818c358ba0778100586339d00d4b3a3f547ef29e998		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65AE 10272 bytes
font_02_sfnt_off000088e5.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88E5 4324 bytes

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