Malicious PDF — malware analysis report

Static analysis result for SHA-256 42fbf6b835e2c322…

MALICIOUS

PDF

76.3 KB Created: 2021-06-01 06:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d2ecfa46a1262a194a139115987e470 SHA-1: 7aa19d0d225feb6b3089066099565f81036eac27 SHA-256: 42fbf6b835e2c322ba79371411a7a0d646d3877a8f46e9c28407ae1fb0268c02
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a malicious website. The document body, though heavily obfuscated, suggests a lure related to religious text translation, which is a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://archism.ru/pbw?utm_term=sri+chaupai+sahib+english+translation
    • https://static.s123-cdn-static-d.com/uploads/4366637/normal_60b08e42195c2.pdf
    • https://static.s123-cdn-static-d.com/uploads/4474457/normal_60b1940996c95.pdf
    • https://static.s123-cdn-static.com/uploads/4427501/normal_5ff47a8107127.pdf
    • https://cdn-cms.f-static.net/uploads/4478132/normal_6066b27ba38c2.pdf
    • https://static.s123-cdn-static.com/uploads/4371013/normal_5fdd5eb5270cc.pdf
    • https://cdn-cms.f-static.net/uploads/4369779/normal_605685dcb93ed.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/7ec3a78d-f526-42cc-9be1-473772e153ad/58305524489.pdf
    • https://uploads.strikinglycdn.com/files/f20326eb-475d-43a6-afdd-9bf191f8ad7e/16639967822.pdf
    • http://wixugigir.pbworks.com/f/fumaleginonomusikumom.pdf
    • https://uploads.strikinglycdn.com/files/fc5f92fd-da83-4be1-90df-cd553b18043f/jakosilemunurizevililosa.pdf
    • https://uploads.strikinglycdn.com/files/d90373bf-efe4-4c99-8324-a4b5078ee7ae/guzozawewimikexolobipa.pdf
    • https://uploads.strikinglycdn.com/files/a403f375-5913-4bec-b7e0-1490a78131f5/kgf_chapter_2_tamil_moviesda.pdf
    • https://uploads.strikinglycdn.com/files/587c757d-5e77-486b-a990-c33ffaf54844/how_to_light_the_pilot_on_a_wall_heater.pdf
    • https://uploads.strikinglycdn.com/files/e13695b9-254d-4c6b-ad96-8647cecd673e/field_visit_report_example.pdf
    • https://uploads.strikinglycdn.com/files/56710187-2012-46de-bb9b-9c28f72095bc/alpine_cde-sxm145bt_user_manual.pdf
    • http://mifimoruzuwo.pbworks.com/w/file/fetch/144431463/1999_ford_ranger_xlt_4x4_4.0_towing_capacity.pdf
    • https://uploads.strikinglycdn.com/files/8d0062ee-e1c4-4de4-b318-c7d35f391fc7/my_cousin_rachel_download_full_movie.pdf
    • https://uploads.strikinglycdn.com/files/9302e525-8b9c-4eb5-b820-45e162f94d9f/64151046339.pdf
    • http://kolelulu.pbworks.com/f/arunachalam_tamil_movie_download_tamilyogi.pdf
    • http://viluxese.pbworks.com/f/ai_football_ggo_season_2_episode_1.pdf
    • http://paderukut.pbworks.com/f/what_is_the_role_of_an_admin_manager.pdf
    • https://uploads.strikinglycdn.com/files/8cfc272e-29d9-418b-9784-04a03cdef0c4/will_god_forgive_everyone_in_the_end.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e067.bin
fc3f5736c7a4b8d4211a92b9a77734d4159c87a87875a70350affb67c75d226d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE067 5320 bytes
font_01_sfnt_off0000f267.bin
dc9c521cada903daed6e0c96fdd5d228089e3e46f7435d727d2f4795dc74da06		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF267 10224 bytes
font_02_sfnt_off00011591.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11591 4324 bytes

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