Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a4714683f8e75d3…

MALICIOUS

PDF

1.03 MB Created: 2021-03-28 07:32:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: bee42c21a0cf6e69603402a31cb88e35 SHA-1: e7c224fbf013e28600dd192b4708d856b639a5c4 SHA-256: 0a4714683f8e75d3572ef159aa58ca905b69da961d7f1970c5905f44d82f52b7
66 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ClamAV detection further confirms its malicious nature. While no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect users to potentially harmful content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0814

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/award?keyword=quimica+inorganica+descriptiva+rayner+canham+pdf PDF link annotation
    • https://cdn.sqhk.co/lisupixiwe/6ZifD49/87526288372.pdfIn PDF document text
    • https://cdn.sqhk.co/zutujodara/6gehfyz/descriptive_research_design_example.pdfIn PDF document text
    • http://fenellalucynelle.info/xefaridovajuja7q6k9.pdfIn PDF document text
    • http://marketitaly.pro/how_to_pass_ib_physics_hl4ng15.pdfIn PDF document text
    • http://lidlid.xyz/tamil_language_for_android29687.pdfIn PDF document text
    • https://cdn.sqhk.co/lokovipazal/igqhgjg/cookie_swirl_c_roblox_fashion_frenzy_new_video.pdfIn PDF document text
    • http://epipog.com/book_24_hours_greg_ilesiq649.pdfIn PDF document text
    • https://cdn.sqhk.co/segexiji/rH43jjV/favikodijesutajija.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwunikuneg/d6nghhT/retowowiposapad.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/5jaOjbO/sivetivikudowototebele.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/0ibjrQE/photo_studio_los_angeles.pdfIn PDF document text
    • https://cdn.sqhk.co/setuboluraje/jjIgWOA/64944649630.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/gYjbghv/wizomu.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/8ZXighc/89743713498.pdfIn PDF document text
    • http://prod-fruit.space/774405020s7dmv.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://s3.amazonaws.com/zalomi/bhagavad_gita_audio_in_sanskrit.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/how_to_apply_for_food_stamps_pandemic.pdfIn PDF document text
    • https://0fe83ef2-ed6b-4f04-a52d-31fe3c58d8d1.filesusr.com/ugd/ade4e6_bc472d32b2da42658b524cac2cf95295.pdf?index=trueIn PDF document text
    • https://c9977776-9e37-4432-9eae-e541147807da.filesusr.com/ugd/bb6cc6_1fb72cfe8dcf42f197903143e5d9de06.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/nafovu.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/kowakuwe.pdfIn PDF document text
    • https://d6504552-49b0-4b7d-b1ff-94f9e1082b83.filesusr.com/ugd/1f0558_210c457b8faf42cd988cd05eda48bbe4.pdf?index=trueIn PDF document text
    • https://84d655c4-d84a-4a0c-9c32-0387925bd622.filesusr.com/ugd/6233da_bcef01ca4acd4f7aacbe4b00e7cd702e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/directv_channel_guide_printable_version.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/how_is_historical_recount_text_organized.pdfIn PDF document text
    • https://650c977b-0274-48a2-8498-43c0efc39f4e.filesusr.com/ugd/dbad32_b422b5f454b24cf0aee906e24ceaa6dc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sejakopa/61197958340.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_off00101f86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101F86 5640 bytes
SHA-256: dfc6e6fe31737dd54762b7306bbda3ee6c65e3fb18b6229318ba322ad7edebc6
font_01_sfnt_off00103297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103297 15180 bytes
SHA-256: d4de266924fd3ce0d66efecc7876d0172acc3ff64e66ed2e9c8b9210582a371d
font_02_sfnt_off001062b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1062B2 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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