Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee3b30ee3e94e37…

MALICIOUS

PDF

83.1 KB Created: 2021-05-08 15:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c4b8a9452c05035dc48148db559713b5 SHA-1: 71e3bc8c0c3a7a2c99cb43e999f0292207ecc0ae SHA-256: 0ee3b30ee3e94e37f30ce13588dc40f539dff4856be06894add30092e7a3807d
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The file contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. One of the primary external links is to 'dugedepap.ru', which is likely a malicious domain used to host further stages or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/strik?utm_term=petsafe+drinkwell+platinum+instructions PDF link annotation
    • https://mifopubulu.weebly.com/uploads/1/3/1/6/131637027/78d30c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376362/normal_60025a517e7ec.pdfIn PDF document text
    • https://lefesime.weebly.com/uploads/1/3/4/8/134882546/kebukukawo.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/ibhfehg/tangled_movie_songs_list.pdfIn PDF document text
    • https://tepevigiroj.weebly.com/uploads/1/3/4/6/134672536/bokevipitejowapen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370541/normal_5fc6ac4a953cc.pdfIn PDF document text
    • https://panodetis.weebly.com/uploads/1/3/4/6/134669877/4813280.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413110/normal_601d533e58ef0.pdfIn PDF document text
    • https://cdn.sqhk.co/manigonodapu/1Ljgejj/tumedononasomax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390681/normal_605bab94b2145.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxapivasif/haghGid/download_sololearn_learn_to_code_for_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_602bec08b3f40.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/fff81ca8-f6d6-4442-91d9-de7ed4f7d09d/who_has_the_least_lines_in_julius_caesar.pdfIn PDF document text
    • https://6baea7ca-81e4-4a11-8410-716433a99462.filesusr.com/ugd/764aaa_35019db126f349b19ff863e84d20421e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/12a47110-d432-44e2-aa96-517227de8dfb/32098674382.pdfIn PDF document text
    • https://8b5ac0f3-2bc4-49a6-9a99-2541af31b215.filesusr.com/ugd/f2ef67_57549d77c1e2415698715fb486cb9613.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5246db73-7aa0-4404-8676-e24d3496eda6/sas_ods_page_break_by_group.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6f9627e-8acc-4771-9347-10f069d88f44/maths_formulas_for_class_10_in_hindi_bihar_board.pdfIn PDF document text
    • https://f9fc249e-2e6a-4908-9eb0-88005465a50d.filesusr.com/ugd/2530ee_c20425fc30a6422c9151186bd6368d36.pdf?index=trueIn PDF document text
    • https://08c3cc13-1ce0-4add-927e-a3aed263473e.filesusr.com/ugd/ccf397_7f4f7f5df04247d19b3837cf687eab85.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1c7d4a5-ab5e-4419-856d-66501c29b74d/how_to_remote_access_ubee_router.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_off0000f825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF825 5340 bytes
SHA-256: 3a6375e0f3d55af3ca328a2b67d27273b098c49ad1a0d4be1248f9484a1d7760
font_01_sfnt_off00010a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A3C 11316 bytes
SHA-256: 074854ca72058ef5c057ec67ea323ab020061554a6f328b9faf325986cdade0f
font_02_sfnt_off000130e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130E6 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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