Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03602dc70e8f1fe…

MALICIOUS

PDF

70.0 KB Created: 2021-02-22 14:03:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7b92c95fb2207965b4e5c3e6330aac47 SHA-1: e24cb5a117f73874afd248c537eeb08c17844a7b SHA-256: e03602dc70e8f1fe88976632cb64a14c5fdda23e9471bf5b330737516113e6b3
134 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links, including one disguised as a movie download, likely intended to trick users into visiting malicious sites. The presence of multiple disposable hosting links and UTM parameters suggests a link farm designed for obfuscation and evasion. No scripts were extracted, but the overall structure and URL patterns point to a phishing lure.

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 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.
  • 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
  • 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://druttle.ru/strik?utm_term=twilight+full+movie+download+in+hindi+all+parts+hd PDF link annotation
    • https://reruwezoketa.weebly.com/uploads/1/3/4/5/134503250/xajinuzojiro.pdfIn PDF document text
    • https://pakunifa.weebly.com/uploads/1/3/5/3/135307874/1645848.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483864/normal_60249eb939b31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424666/normal_602fa99d2059b.pdfIn PDF document text
    • https://wenojuzak.weebly.com/uploads/1/3/4/2/134265903/juvakepotupesexe.pdfIn PDF document text
    • https://bilujadaju.weebly.com/uploads/1/3/4/7/134772480/purejewofufa_wazojifajoxadi_sowomuk_wumiwizijad.pdfIn PDF document text
    • https://zikowajemaje.weebly.com/uploads/1/3/1/6/131607239/wodigeti.pdfIn PDF document text
    • https://fitisasituwag.weebly.com/uploads/1/3/4/8/134846324/3348f.pdfIn PDF document text
    • https://karivimefoga.weebly.com/uploads/1/3/4/3/134311068/8492270.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_5fd93d95da045.pdfIn PDF document text
    • https://kopabiziruzoxol.weebly.com/uploads/1/3/1/4/131406592/navapedumusola.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368245/normal_5fd66e2f7ea5c.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/nowokil/gowenavuwilizebiwib.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/zetexa.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/holman_quicksource_bible_atlas.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_off0000d5c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C7 5556 bytes
SHA-256: 0aeeb8adb5f60f5f08ff205409e7131e144099096322ad09c80f473dc2cdce75
font_01_sfnt_off0000e89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89A 10104 bytes
SHA-256: 17959e6d550ace1ea75f27625ae83645216fa57fbddaf582a803146f72af3556

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