Malicious PDF — malware analysis report

Static analysis result for SHA-256 0325448e12f7640a…

MALICIOUS

PDF

43.7 KB Created: 2020-08-19 23:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e3b2f5c35c1844aeab92ca7a117d984 SHA-1: 85b3b54ff12f0abde89af7ce159f64a5819262dc SHA-256: 0325448e12f7640aeab1dd43bd09783b24486e4d52fde9654c2151f62db7b969
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector to a known malicious URL, suggesting an attempt to lead users to malicious content. The 'SE_CLICKFIX' heuristic indicates the document may instruct users to execute commands, a common social engineering tactic to bypass security measures. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=star+wars+battlefront+2+ps4++error
    • http://files.extremeeverest8850.com/uploads/1/3/1/4/131452838/zepasimalebubapa.pdf
    • http://files.weitzelphotography.com/uploads/1/3/1/0/131070911/9354064.pdf
    • http://files.composerlinwang.com/uploads/1/3/0/7/130775825/705d4352f66ccf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/asus_multiframe_software.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/drama_certificate_templates.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/15935041678.pdf
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/pepavixuvitim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdf
    • https://cdn.shopify.com/s/files/1/0447/0997/0073/files/motor_vehicle_act_amendment_bill_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/forexejemufulukeru.pdf
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/pajuboju.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/18854149404.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006551.bin
156948e1e79418bd30b9887927c056b7ca5a7bef3bb9ef362e72cbf3bf1d33c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6551 5452 bytes
font_01_sfnt_off000077fc.bin
d2461c265aa2a26a301f01f30289c8e38f056ba7a2053057dddb77ccbdafd73c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77FC 12636 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.