Malicious PDF — malware analysis report

Static analysis result for SHA-256 04572b816b520bb3…

MALICIOUS

PDF

73.3 KB Created: 2020-12-25 06:24:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 35ddfd627335c51c1f5ca722330158d8 SHA-1: 778669dd801f4cb7b0e00709a8891f6e9bee75b2 SHA-256: 04572b816b520bb3c4c0483a561c49ca8d87af5e6027ba05c1132338c73afee6
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of the primary external URIs points to 'https://traffnew.ru/strik?utm_term=pako+2+best+cars', suggesting a phishing or malicious redirection attempt. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojanized PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://traffnew.ru/strik?utm_term=pako+2+best+cars PDF link annotation
    • https://dasowafajego.weebly.com/uploads/1/3/4/7/134723411/zevemotevawe_polavelukaguro.pdfIn PDF document text
    • https://lozavogifod.weebly.com/uploads/1/3/4/4/134482976/dufazimowi_jixevaxa_nezexosaf_kewidelova.pdfIn PDF document text
    • https://fezulenigi.weebly.com/uploads/1/3/4/4/134485980/e21098cf5.pdfIn PDF document text
    • https://mufedagejex.weebly.com/uploads/1/3/4/7/134726032/xurejetexu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5fbc161d93305.pdfIn PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/xegav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500186/normal_5faff2b609f46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b83a777a-c217-4aea-854e-338a80ed13f4/spyro_eternal_night.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/biology_lab_properties_of_enzymes_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/67762135047.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/lenewot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37715d92-cf34-43a7-b993-bc0c5a3ed303/sean_kyle_swayze_and_patrick_swayze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e013e368-4745-4dfe-8683-37224f197b28/lewilukobawixorenilo.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/butifenaraxanusevasa.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52B 5096 bytes
SHA-256: 25e4973d95a55e48b0ab6c815360a8ca9cc4cccafc44c09399f04f7e7b889577
font_01_sfnt_off0000f695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF695 10136 bytes
SHA-256: 4832a2c875aa56ae7f8ecacb4a90b391dd8eeb53ec640bf8545ac417342c29f4

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