Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d591d57a8f54cf…

MALICIOUS

PDF

40.2 KB Created: 2020-08-19 12:48:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50e83ddfa0127ae5869bb299a07fe0f0 SHA-1: b971b4f6cc834e52772d13ae44fdde453c869c72 SHA-256: 09d591d57a8f54cf5a46248c137218bcc3edee6d2456ae086970222334c05afd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. This suggests an attempt to direct users to malicious infrastructure, likely for phishing or malware distribution.

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.cc/pify?keyword=nutrition+information+in+grape+tomatoes
    • http://narofozif.buyatpure.com/uploads/1/3/1/6/131636954/5a56cb143f87.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/tewekegeke.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/fozonuzavurasonuwiloru.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/38659037606.pdf
    • https://cdn.shopify.com/s/files/1/0432/9134/5064/files/65804798608.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1177/files/one_america_asset_care_iv.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/gegerolapenama.pdf
    • https://cdn.shopify.com/s/files/1/0440/7682/6789/files/biochemistry_mcqs.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/jenojuwezup.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/ancient_light_john_banville.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/mabunutifiniw.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_off000056b0.bin
f0bd59f2988007d02331dc68acc8aef264a26abd198790e89d5eeebc9402630a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B0 5156 bytes
font_01_sfnt_off0000682c.bin
4c87368c085fabbe11dc233e4ced72841dc8018beaa5b37f0300a7fa8eec6428		 pdf-font-stream PDF embedded font (sfnt) at offset 0x682C 13944 bytes

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