Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcd026d5291e06a6…

MALICIOUS

PDF

58.4 KB Created: 2020-10-28 23:18:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13aa0a0680fd53b2ae3c83a31a71220c SHA-1: ec3b2eb093e1d881ebfad6d473c8b4d3e59e45e3 SHA-256: bcd026d5291e06a60d352a1497fa30842685efdf744f08ea09bb596fc0d68d63
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external PDF files, indicating a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://gettraff.ru/123?keyword=real+happiness+the+power+of+meditation+pdf'. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous external links suggests an attempt to drive traffic to potentially harmful sites, likely for phishing or malware delivery.

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://gettraff.ru/123?keyword=real+happiness+the+power+of+meditation+pdf
    • https://virataxutepubom.weebly.com/uploads/1/3/0/8/130874282/rikalalidugere_junawajivo.pdf
    • https://cdn-cms.f-static.net/uploads/4407060/normal_5f977974d450c.pdf
    • https://cdn-cms.f-static.net/uploads/4366057/normal_5f86f5161f43b.pdf
    • https://gasuzenop.weebly.com/uploads/1/3/4/2/134266144/4589706.pdf
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5f90a9c4cb55b.pdf
    • https://cdn-cms.f-static.net/uploads/4423750/normal_5f981b3dc8e3b.pdf
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/12a035ab08798d1.pdf
    • https://cdn-cms.f-static.net/uploads/4371267/normal_5f8a640393ab3.pdf
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f89b12ac962a.pdf
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5f94c3d416729.pdf
    • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/rebijifafiridabot.pdf
    • https://zajuzuvo.weebly.com/uploads/1/3/4/4/134474050/3043617.pdf
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5f8763fca6f74.pdf
    • https://fulodovujigiw.weebly.com/uploads/1/3/4/0/134016909/7917651.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ninazarila/all_full_form_of_computer_download.pdf
    • https://s3.amazonaws.com/fapaga/majin_buu_saga.pdf
    • https://s3.amazonaws.com/muwemivumazulax/hormone_system.pdf
    • https://s3.amazonaws.com/sevoga/workforce_planning_steps.pdf
    • https://s3.amazonaws.com/nowokil/60907897573.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_off0000a2b2.bin
0c58398e5ca772196390c7e0060f2fec085c81698f54d4814f8123145f748460		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B2 5380 bytes
font_01_sfnt_off0000b4e6.bin
0336f03ed309b713c0f2e2ee7afc2a06363203b74cb2f507d00e3e80e279a5e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4E6 11552 bytes

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