Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a964f38ee5a934…

MALICIOUS

PDF

37.9 KB Created: 2020-08-15 04:56:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5fad7a8f1279a661eb3b90e6d3c93df SHA-1: 170c9721713cc8621f6cb4b90fa9d489b6575a97 SHA-256: 69a964f38ee5a934a9d5cf61e635c40b0a9b73eeb658297e4f81f70c9de65efc
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector, suggesting an attempt to lure users to malicious infrastructure. The presence of multiple external PDF links also indicates a link farm, often used for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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=blank+hockey+jersey+template
    • http://kuvapo.coltstennisbooster.net/uploads/1/3/0/7/130776783/tadaf_wesofamug_vedenab_lufuxudax.pdf
    • http://files.genehamiltonartist.com/uploads/1/3/1/4/131437457/togirowida.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/77048034618.pdf
    • https://cdn.shopify.com/s/files/1/0432/1932/0992/files/dnd_lesser_restoration.pdf
    • https://cdn.shopify.com/s/files/1/0428/5513/7447/files/wiwivu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0569/7438/files/73334815982.pdf
    • https://cdn.shopify.com/s/files/1/0438/3339/3309/files/39618755370.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9204741539.pdf
    • https://cdn.shopify.com/s/files/1/0431/4474/1015/files/anestesia_general_embarazo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/metamorphosis_definition_biology.pdf
    • https://cdn.shopify.com/s/files/1/0437/3938/1912/files/wazotinepu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6857/8210/files/ibps_po_notification_2020.pdf
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/gidokulajanelixubem.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004818.bin
4f66676a31d4b94bba9062a62a82838886cbbe4639ce9556268106dfe51b800f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4818 5204 bytes
font_01_sfnt_off000059a9.bin
821a55482803df3d43c7e746e6b5153e335034c6375446745db92d17f657d982		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59A9 10328 bytes
font_02_sfnt_off00007cf0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF0 4324 bytes

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