Malicious PDF — malware analysis report

Static analysis result for SHA-256 5301d2276b5ee3e5…

MALICIOUS

PDF

68.1 KB Created: 2021-02-27 15:13:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3604e720e98c43bb42f78f4c33bed344 SHA-1: d7d901b342e2239daf5c626fe97be7ff0e568a6c SHA-256: 5301d2276b5ee3e580f0d46c3dc5c53a26ca07aaee52f2317261c5c1907b5b13
186 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, appears to be a lure related to game ROMs. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with ML and ClamAV detections, strongly indicates malicious intent. The primary goal appears to be directing users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gimoguvi.ru/wb?keyword=zelda%20link%20to%20the%20past%20gba%20rom%20fr PDF link annotation
    • https://podotetu.weebly.com/uploads/1/3/4/0/134017986/fanuxidafixaj.pdfIn PDF document text
    • https://vejarava.weebly.com/uploads/1/3/1/0/131070596/fodonetes-jagavazom-safadeli.pdfIn PDF document text
    • https://burigazipe.weebly.com/uploads/1/3/4/7/134764527/besubuzotun-judopekewasada-jafokawuboji.pdfIn PDF document text
    • https://lasapiboxemifol.weebly.com/uploads/1/3/4/8/134865682/sevarogumisewor.pdfIn PDF document text
    • https://gojenegitoz.weebly.com/uploads/1/3/4/3/134387591/9078523.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384046/normal_5ff65dfa67483.pdfIn PDF document text
    • http://ledukamu.iblogger.org/rizinonetuzomubo.pdfIn PDF document text
    • https://dovezoluwebib.weebly.com/uploads/1/3/4/0/134017866/d34faa31ffe7.pdfIn PDF document text
    • https://posesisex.weebly.com/uploads/1/3/5/3/135332701/84bf130040c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://mupufekugix.epizy.com/92480590833.pdfIn PDF document text
    • http://vuropomap.epizy.com/ankush_raja_all_bhojpuri_song.pdfIn PDF document text
    • http://mironowagiseb.rf.gd/27933126887.pdfIn PDF document text
    • http://lezujepadu.rf.gd/mac_os_mojave_iso.pdfIn PDF document text
    • http://lorazak.epizy.com/birdbrain_robot_server_mac.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE2F 5404 bytes
SHA-256: 98a245ca6db0b0de4f6c9317d9f4886a6d89d7447c5e2bc1ee629209217bf35c
font_01_sfnt_off0000d052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD052 11076 bytes
SHA-256: 55903c514ab53255cf3aa6b4aa05bf3b0bf8c7ac723b95faeafef0e7fa422d86
font_02_sfnt_off0000f51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51E 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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