Malicious PDF — malware analysis report

Static analysis result for SHA-256 54e2a2048c241c86…

MALICIOUS

PDF

74.2 KB Created: 2021-02-22 01:01:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: f7c55deb6d92014ef12189886e35f5c8 SHA-1: 85b0fe3abe7792743a3c6dd81ef16b23d58278a8 SHA-256: 54e2a2048c241c865506e1862e15e69b4acb584c3a515c4c382fc6732de3b269
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, suggesting an attempt to manipulate search engine results or redirect users to malicious sites. The presence of multiple unknown URLs, including 'http://reduslim-shopofficial.site/akhisarspor_formas_satn_aleyzs5.pdf', reinforces this malicious intent. While no scripts were directly extracted, the PDF structure and link farm indicate a phishing or malicious redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=dead+men%2527s+secrets+book PDF link annotation
    • http://reduslim-shopofficial.site/akhisarspor_formas_satn_aleyzs5.pdfIn PDF document text
    • https://rorefodelubo.weebly.com/uploads/1/3/1/4/131452934/3856481.pdfIn PDF document text
    • http://sbrf.link/max_volume_booster_download_pcchztm.pdfIn PDF document text
    • http://spain50off.info/is_the_book_hatchet_based_on_a_true_story7h4s1.pdfIn PDF document text
    • http://italdom.fun/sherwood_rx_4109dqgtg.pdfIn PDF document text
    • http://mowuvivof.22web.org/zugexafojutame.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/age_of_civilization_2_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/android_studio_arrayadapter_string.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/sony_alpha_350_harga.pdfIn PDF document text
    • http://zupagume.rf.gd/chakra_balancing_healing_guided_meditation.pdfIn PDF document text
    • http://jexusapije.epizy.com/99649193653.pdfIn PDF document text
    • http://mikesivu.rf.gd/free_tri-_fold_brochure_template.pdfIn PDF document text
    • http://zoniguzetixan.epizy.com/2998184674.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/google_sketchup_app_download.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_off0000e635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE635 5288 bytes
SHA-256: 547bab93285fbe5af46c015798bdea06f9f14f0a5405680fcd73125984d1c87e
font_01_sfnt_off0000f827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF827 10428 bytes
SHA-256: 4dbd8a9f5875c67b5f53dc2a7bdd7223b2f1637d02b1d7b1e1506dc9f01d0633

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