Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0eeec36da299cc…

MALICIOUS

PDF

76.0 KB Created: 2021-04-26 17:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: a921d95dbc19b74473943c183778b53d SHA-1: 3ec5b3e19ded318ea8360e61e3cb4f63edee2485 SHA-256: ab0eeec36da299cce34b539b33a22546a5d1013e7177293d45fdcb242a5b6444
126 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including ML and ClamAV, indicating malicious intent. It contains an embedded URI pointing to 'dugedepap.ru', which is likely a phishing or malware distribution site. The PDF's structure and embedded content suggest it's designed to exploit users, possibly through social engineering or by leveraging embedded scripts.

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 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://dugedepap.ru/strik?utm_term=troy+bilt+tb4218cc+chainsaw PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452608/normal_6005818fa8b8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422145/normal_6052ed0b9cb54.pdfIn PDF document text
    • http://dabopoxele.getenjoyment.net/auguste_escoffier_biografia.pdfIn PDF document text
    • https://cdn.sqhk.co/rubalibuzodi/GSpIjbv/doxanised.pdfIn PDF document text
    • https://cdn.sqhk.co/xawefigi/ifsje1w/50050885996.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390995/normal_606c9aef6f961.pdfIn PDF document text
    • https://cdn.sqhk.co/rujoremebi/bgghjt5/kamijox.pdfIn PDF document text
    • http://fezivexem.iblogger.org/xirowegepavu.pdfIn PDF document text
    • http://bakugutujom.22web.org/where_to_buy_jersey_mikes_pepper_relish.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485578/normal_6005d89f8dae8.pdfIn PDF document text
    • http://kuboduzuke.mypressonline.com/c_s_lewis_weight_of_glory.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
    • https://uploads.strikinglycdn.com/files/d1d7dab6-ab56-432a-af9d-764d08d89323/fresh_prince_of_bel_air_lyrics_emoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77873db5-a9b8-4612-ad38-d9f573ae984a/program_directv_remote_rca_surround_sound.pdfIn PDF document text
    • http://dovabaz.epizy.com/bojekededodisoruvoguwip.pdfIn PDF document text
    • http://dupikupujetilu.rf.gd/rukewizimewog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64022b16-3bd0-4963-848c-bab84d004bc2/jetajopeluvobopolitupum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1094508c-c246-4e19-9650-ae7ed7664b3b/renelafugipafip.pdfIn PDF document text
    • http://tixofimisupabev.onlinewebshop.net/77030489956.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a4f1000-2638-45a2-95a9-ac6a3520f6d3/statistics_david_freedman_free.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_off0000de70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE70 5308 bytes
SHA-256: b4897797daea27a40d71fc979e157f596eb37bee89300e960221a965c860ee03
font_01_sfnt_off0000f084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF084 10856 bytes
SHA-256: 7b7afd0c2684c20021e8c23744186b65f4e53c8425efc6f6ff4a046fabf601ca
font_02_sfnt_off000115b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115B6 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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