Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c3c857373cbc68…

MALICIOUS

PDF

79.9 KB Created: 2021-02-24 13:12:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ae177cdd8ffdaa34576d5c51f40da0e SHA-1: 7f78c1be7dd79f76386d5e7a32f7a80dcccb23fe SHA-256: 32c3c857373cbc68c58da621ff3e1573e82680d891e1453fe16fafe08371abfe
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URLs, such as 'https://maypoin.ru/wix?keyword=eads+high+school+address', suggest a phishing or redirection attempt. The document body, though partially corrupted, contains keywords related to 'Eads high school address', likely serving as a lure to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=eads+high+school+address
    • http://afterdealer.pro/mexodovitezalodeto7oatg.pdf
    • https://cdn.sqhk.co/tosilura/ehjJggh/nezonasojulob.pdf
    • https://cdn.sqhk.co/gagowuname/ggRjgLA/28591051311.pdf
    • https://cdn.sqhk.co/japokaxe/Xidgggj/scary_yellow_teacher_banana_math_school_escape_room.pdf
    • http://sell-toclick.online/suniwosebugke599.pdf
    • http://alteramaks.world/arboles_de_decision_ejercicios_resueltoskt3ah.pdf
    • https://cdn.sqhk.co/pinufizugal/wZhfjgn/family_guy_the_quest_for_stuff_all_events.pdf
    • https://cdn.sqhk.co/kolokejo/faaojeu/jigusuxuluto.pdf
    • http://silver35.ru/bahubali_2_full_movie_free_480pwn9xa.pdf
    • http://lnstagram-helps-contact.com/hungarian_rhapsody_no_2_violin_sheet_musicp0r9k.pdf
    • https://cdn.sqhk.co/wazotifuk/SibsUiE/13769671758.pdf
    • https://cdn.sqhk.co/tivuzofep/ggs34e1/download_jurassic_world_the_game_mod_apk_terbaru.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/najipavez/razunuvex.pdf
    • https://s3.amazonaws.com/poguvelefa/82834713915.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd5c.bin
b6991c180791333a02bef1e1f216b75e384d60926d87b73069118ad2225b656b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5C 5160 bytes
font_01_sfnt_off00010ee0.bin
0aa116e25be4899e04fba0ee32a4fba43106722fab45e241b1f066cd20938bb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE0 10572 bytes

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