Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a07a6575d0ef0c7…

MALICIOUS

PDF

41.2 KB Created: 2020-08-06 07:33:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04d2e8cf9d6da8063f75bf008829ec56 SHA-1: 7d9f855aa913320c2f17695485aa5f5322660cbe SHA-256: 2a07a6575d0ef0c700fba5089edda3e9cf062a3622d2b850a083630545566cf5
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=the+stranger+albert+camus+pdf'. This indicates the document is designed to redirect users to malicious infrastructure, likely for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=the+stranger+albert+camus+pdf
    • http://files.careforcommunication.com/uploads/1/3/1/3/131398242/4435120.pdf
    • http://baxav.longclublambs.com/uploads/1/3/1/3/131380429/ad8f8096.pdf
    • http://files.spiritwalk.info/uploads/1/3/1/4/131452935/3407478.pdf
    • http://files.eyglandscapes.com/uploads/1/3/0/7/130776104/3645154.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/54856883134.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1832/files/pujuwijegede.pdf
    • https://cdn.shopify.com/s/files/1/0437/1087/3765/files/34821437139.pdf
    • https://cdn.shopify.com/s/files/1/0428/7086/6087/files/wufemewosofudiluteleviwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/definition_of_conflict_in_literature.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdf
    • https://cdn.shopify.com/s/files/1/0448/4333/5837/files/beginner_s_guide_to_digital_painting_in_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/fuleluwomew.pdf
    • https://cdn.shopify.com/s/files/1/0428/5592/3878/files/bobbi_brown_makeup_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6803/8049/files/30453184942.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/vevodotelawexosibeniduje.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/kuvos.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_off000061cf.bin
6c283124e02d65f74d3b6bf185a7c58fce5f767f7c0e5ca84709f949410e8ca6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61CF 5660 bytes
font_01_sfnt_off000074dc.bin
c4a9ec2c53a290e4c0922034a16661d054b400a9e8f011681c2cfc0a2531a564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74DC 10292 bytes

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