Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d0bbfed035ad6b2…

MALICIOUS

PDF

49.9 KB Created: 2020-08-10 03:29:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4396a6aa7c96492064c18c0a5d3100c5 SHA-1: fb13aafaf7ae5b0e9aea8d35f37c093e90b2b002 SHA-256: 7d0bbfed035ad6b2c478b747ec9c4213ff1b9a638cf35476c3ed23b9f7a2e5a1
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying it as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. This suggests the primary purpose is to redirect users to potentially harmful content, 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.com/pify?keyword=articulaciones+de+tobillo+y+pie+pdf
    • http://files.shop.dannysrods.com/uploads/1/3/1/3/131398008/309a0e485ea9.pdf
    • http://kewutaga.brisk-nederland.com/uploads/1/3/1/4/131407005/riwaba.pdf
    • http://files.marsaliaresearch.com/uploads/1/3/1/1/131164556/firanam-vemon-movuroz-puvujevoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/75892859243.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/93639259300.pdf
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/86399349301.pdf
    • https://cdn.shopify.com/s/files/1/0440/5490/4997/files/curriculum_vitae_examples_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/gefezosafuxuteluzorudefi.pdf
    • https://cdn.shopify.com/s/files/1/0448/6791/1842/files/pathophysiology_ivan_damjanov_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/tuzubudijilokifozop.pdf
    • https://cdn.shopify.com/s/files/1/0434/9342/5316/files/kirchhoff_current_and_voltage_law_examples.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/518239352.pdf
    • https://cdn.shopify.com/s/files/1/0447/9077/5965/files/jukedilojebusadatikesiluk.pdf
    • https://cdn.shopify.com/s/files/1/0432/0650/8701/files/jeser.pdf
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/wixobazigosukalajupuwu.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_off0000831a.bin
345a4e9cd1e2f0496dbabbac434a78519ed2e328bb8acbc84c30b99a6ecdf05e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x831A 5380 bytes
font_01_sfnt_off00009576.bin
8dc56ea52984382210b181ee6142725513a5493748f29d5efa9479958e8b46a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9576 10688 bytes

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