Malicious PDF — malware analysis report

Static analysis result for SHA-256 7812d2ac8b9dc608…

MALICIOUS

PDF

87.8 KB Created: 2021-04-04 15:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7af7ee10110b86bcaaa7982f8f7f0e00 SHA-1: 1a2fda74c9eab03bf5fa0747b956e461aa540570 SHA-256: 7812d2ac8b9dc60880da3df47795de53f6ad4e11fe0c88e83c3bb05bbe19630a
96 Risk Score

Malware Insights

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

The PDF file contains a malicious ML classification score and a ClamAV detection for Pdf.Phishing.Trojan. The embedded URL, 'https://midufefew.ru/aws?utm_term=2002+jeep+grand+cherokee+limited+owners+manual+pdf', suggests a phishing attempt disguised as a search result for a vehicle manual. No scripts were extracted, but the PDF structure and URL indicate a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://midufefew.ru/aws?utm_term=2002+jeep+grand+cherokee+limited+owners+manual+pdf
    • http://pobesegu.scienceontheweb.net/alfred_adler_livros.pdf
    • http://nafivonafiriba.iblogger.org/lugila.pdf
    • http://jedusajinud.mygamesonline.org/zedofu.pdf
    • https://cdn.sqhk.co/satijumok/d7Bjgjc/auras_hammer_simulator_wiki.pdf
    • https://cdn.sqhk.co/bosamame/dQjb6Bo/galaxy_watch_active_2_lte_battery_life.pdf
    • https://cdn.sqhk.co/dilereku/kvcMIjb/12381309570.pdf
    • http://samokex.sportsontheweb.net/40588588998.pdf
    • http://lewijufe.sportsontheweb.net/modo_de_produccion_feudal_ejemplos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tupofelasujewas/nubodezam.pdf
    • http://gudavipupax.rf.gd/plural_nouns_lesson_plan.pdf
    • https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_96b3f769bca347cf9d7d2e37dd19546e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/8de6f8a1-a730-47d4-903f-8774f6dbf36d/recipe_for_air_fryer_potato_fries.pdf
    • https://uploads.strikinglycdn.com/files/e1f6a0b9-72e9-448c-af30-f19bddf1563b/what_features_of_traditional_african_music_are_evident_in_djembe_percussion.pdf
    • https://s3.amazonaws.com/tolivajupeku/alien_shooter_for_android.pdf
    • http://xarujubapemir.epizy.com/dujirotawolinamegufom.pdf
    • https://8767aa75-4bd5-48c0-94ca-24e983238001.filesusr.com/ugd/debdc1_0fabb92dafa4452e8fff15e428259149.pdf?index=true
    • https://s3.amazonaws.com/tutasujal/what_formula_does_missouri_wic_provide.pdf
    • https://uploads.strikinglycdn.com/files/01036061-dc3e-4fcc-98f9-dd769f59568d/kenneth_cole_watch_battery_size.pdf
    • http://xavelatevina.epizy.com/50466150772.pdf
    • http://nifusotajezunur.atwebpages.com/nespresso_delonghi_descaling_instructions.pdf
    • https://s3.amazonaws.com/tapelu/73084734781.pdf
    • https://s3.amazonaws.com/jutenojamega/walmart_nyc_times_square.pdf
    • http://tonixororonimi.rf.gd/telugu_christian_audio_songs_2018.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_off00010b62.bin
c39277ae96d360bb97704f6f3f6bf40a5ca6ec8fb91e48be3a3957886e3b350f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B62 5864 bytes
font_01_sfnt_off00011f31.bin
950bb7556e810d5642d7093981d3674b116b7aae70e3a3c40f934181ce6519ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F31 10596 bytes
font_02_sfnt_off0001434b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1434B 4324 bytes

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