Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c49295c9f07b16…

MALICIOUS

PDF

264.5 KB Created: 2021-03-25 00:17:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3b61fb1d4a054be8002ac78961c23d2 SHA-1: 7e7ec64d5414836792ac4c0702a951f92a00c2ba SHA-256: e5c49295c9f07b1647439b38c67bb0ae0a554fbb8a5e142119e10c689b42d3ea
96 Risk Score

Malware Insights

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

The PDF contains an external URI pointing to a suspicious domain, and ClamAV detection confirms it as a phishing trojan. The ML classifier also flagged it with high confidence. Although no scripts were explicitly extracted, the presence of external URLs and the nature of the detection suggest an attempt to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9324

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://jumiwimov.ru/strik?utm_term=infinity+gauntlet+thanos+vs+goku
    • http://natikolom.site/jotul_602_n_review2xyfl.pdf
    • https://narezivif.weebly.com/uploads/1/3/5/3/135307162/gubuxu-jetujojodon-wazuvisewise-pemazujodar.pdf
    • https://berizezemimuto.weebly.com/uploads/1/3/2/6/132695806/guriwaxumusojud.pdf
    • https://puzugisebo.weebly.com/uploads/1/3/1/4/131438758/d887f89d.pdf
    • https://gimisezijumini.weebly.com/uploads/1/3/1/4/131453276/gozer.pdf
    • https://jeluvuxibobuna.weebly.com/uploads/1/3/4/0/134017570/c89811955a.pdf
    • http://bizbize-yeteriz.org/revosebuzivodofouc1oh.pdf
    • https://baziwiruxufuwav.weebly.com/uploads/1/3/1/4/131482892/3818868.pdf
    • http://haifaiv.ru/which_personality_types_are_compatible_with_intp6bxp6.pdf
    • https://rugepokowefi.weebly.com/uploads/1/3/5/2/135294276/2e94c3.pdf
    • https://wironutoti.weebly.com/uploads/1/3/0/7/130739747/zofove.pdf
    • http://pufaxokijajijev.22web.org/what_is_the_value_of_gas_constant_r_in_j_mol-1_k-1.pdf
    • https://zatagigozot.weebly.com/uploads/1/3/0/7/130775916/podovobamovebo-matewi-buligesonu.pdf
    • http://pubaninuw.22web.org/10395178253.pdf
    • http://mon-cmso.best/tulefemutmp4xs.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xunonevikonog.rf.gd/8th_grade_vocabulary_words_and_definitions_worksheets.pdf
    • https://uploads.strikinglycdn.com/files/e1c6adc5-9466-4e2d-a32f-ecc34eb3a699/life_of_frederick_douglass_chapter_9_summary.pdf
    • http://noxofovamoz.epizy.com/aadhaar_card_form_apply.pdf
    • https://uploads.strikinglycdn.com/files/80e0122d-4d6a-4560-aaa1-8b488aaa5781/maze_runner_4_full_movie_download_in_hindi_480p_filmyzilla.pdf
    • https://uploads.strikinglycdn.com/files/1275207a-c6a7-4b39-bb02-c16021beb777/how_to_not_be_the_smartest_person_in_the_room.pdf
    • http://jasefagabegonu.epizy.com/camera_shots_angles_and_movement_lighting.pdf
    • https://uploads.strikinglycdn.com/files/432858ea-e24c-440a-895d-a340cde79288/47191196147.pdf
    • https://uploads.strikinglycdn.com/files/a2c6c9f7-5a9b-40d0-94a3-305afe6c5400/71355087554.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_off0003cb85.bin
dd24ac41b192c64fce3aa134ee55f32d53f53ac10ce7248ee705f09e545477f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CB85 4980 bytes
font_01_sfnt_off0003dc84.bin
b7f877c8346ba35f1c5f3c974f861ac3bef8dda4f7526d68245f44688efda887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3DC84 11664 bytes
font_02_sfnt_off00040439.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40439 4324 bytes

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