Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cbd9ab594227543…

MALICIOUS

PDF

45.7 KB Created: 2020-08-12 08:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0610a91767e98c8b954d19b8d50e9a50 SHA-1: f080dd002afe5f5301446f394fdbf575c2df0a40 SHA-256: 5cbd9ab59422754329923c94101cf7a00dd01d0bb51e41f6fb1b19428a3010d4
162 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body and heuristics indicate a lure related to 'pdf to word converter free download editable', suggesting a phishing or malware distribution attempt. The presence of many external links, some benign and some unknown, further supports the idea of a link farm used for obfuscation or to host malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pdf+to+word+converter+free+download+editable
    • http://files.mrmairsphysedpage.com/uploads/1/3/0/8/130874115/xofez.pdf
    • http://files.innerresilience.net/uploads/1/3/0/8/130874012/gomuxumezivesudise.pdf
    • http://files.talentedtradesman.co.uk/uploads/1/3/1/6/131606502/9ff8945.pdf
    • http://files.jeffroland.org/uploads/1/3/0/9/130969535/b1325cf25.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/4077/6093/files/xaguvulepebiporijaxu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8573/9670/files/86174222667.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/definitions_in_c_language.pdf
    • https://cdn.shopify.com/s/files/1/0437/3217/2951/files/new_politics_harlem.pdf
    • https://cdn.shopify.com/s/files/1/0438/5590/4918/files/lapejezesemamorasanagupug.pdf
    • https://cdn.shopify.com/s/files/1/0434/3513/1036/files/exploratory_data_analysis_tukey_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/83809417402.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/dulenexibelaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.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_off00007519.bin
7015fe61204a5b37c755a68ed881199f5d4430717aed5e80f83dbdf64585bbb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7519 5128 bytes
font_01_sfnt_off000086ae.bin
548f6a54052a02206dc3e0c7250fe9b35cf3a14548f0b5a153c5dc47a4c1bd66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86AE 10260 bytes

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