Malicious PDF — malware analysis report

Static analysis result for SHA-256 dce6f11366ac9e47…

MALICIOUS

PDF

39.1 KB Created: 2020-04-17 10:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 318232599a9172d21d44c2275dba2cca SHA-1: 744cd45d5f54fd28cccf1584b4596982f106d17a SHA-256: dce6f11366ac9e47746ae38a9e728dd881017f5e2adf575322b9b80aa3d432b4
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for pirated movie content. This indicates the PDF is likely designed to drive traffic to malicious websites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://mmtreeservice24.com/uploads/1/3/0/5/130590741/130590741.html#chalo+telugu+full+movie++utorrent
    • http://hillsgold.org/uploads/1/3/0/4/130489247/9057423.pdf
    • http://thegloow.com/uploads/1/3/0/7/130776220/5172935.pdf
    • http://moser-consultants.ch/uploads/1/3/0/9/130969776/e09e92c3f.pdf
    • http://collegediscoverytours.com/uploads/1/3/0/7/130776508/4711869.pdf
    • http://thepaymebackcard.com/uploads/1/3/0/8/130873995/59c5ae52095.pdf
    • http://toweatherthestorm.net/uploads/1/3/1/3/131380627/1c682f8806b.pdf
    • http://maplegrovelandscapingpros.com/uploads/1/3/1/3/131380429/vufasezedasanewajod.pdf
    • http://gcesportstv.com/uploads/1/3/0/2/130288710/6168495.pdf
    • http://beckmanagement.online/uploads/1/3/1/4/131407194/c3101e7d1439c02.pdf
    • http://criticalcaremcwicu.com/uploads/1/3/1/1/131164117/rokoxepowedesonoluda.pdf
    • http://chsbahamas.com/uploads/1/3/0/5/130547924/ad4426b0243.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e3a.bin
160db7c86106f07680ea3b40d41c6ce36d1d10ab9f07e1d1795b9db4635cbaeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3A 8472 bytes

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