Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bd2851bd4910aaf…

MALICIOUS

PDF

89.0 KB Created: 2021-03-06 11:32:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43c7a7b3e91dc8cd6de5009e3fac01a8 SHA-1: 62124fa0bdceaa11d0cb2fcdfbb4f2695c2d4a52 SHA-256: 6bd2851bd4910aafffb4e887b0e4e0ae9d5049f58a53220c8482a9940f663916
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text that appears to be a search query, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://baarspo.ru/wix?keyword=soul+eater+mizune
    • https://static.s123-cdn-static.com/uploads/4414682/normal_5fc685d345a92.pdf
    • https://static.s123-cdn-static.com/uploads/4421039/normal_5ff68530302f4.pdf
    • https://static.s123-cdn-static.com/uploads/4366660/normal_5ff10b9121fe8.pdf
    • https://static.s123-cdn-static.com/uploads/4419225/normal_6007d305228ab.pdf
    • https://cdn-cms.f-static.net/uploads/4446155/normal_6038e084d7fba.pdf
    • https://xamubamujizej.weebly.com/uploads/1/3/1/4/131483378/27d12439e95f8b.pdf
    • https://cdn-cms.f-static.net/uploads/4465402/normal_60388aad986cc.pdf
    • https://cdn.sqhk.co/feduvefas/ehjggGx/99604389749.pdf
    • https://cdn.sqhk.co/tigadikem/jQghbhh/big_rig_world_discount_code.pdf
    • https://cdn-cms.f-static.net/uploads/4464730/normal_5fdb1dfb7bf9f.pdf
    • https://turugoduzo.weebly.com/uploads/1/3/0/7/130739986/nonesuni.pdf
    • https://cdn-cms.f-static.net/uploads/4458122/normal_601a06b500319.pdf
    • https://static.s123-cdn-static.com/uploads/4501634/normal_600594bd1a37d.pdf
    • https://cdn.sqhk.co/bapulofuw/xYif8Nm/zabilewerovigokirar.pdf
    • https://cdn.sqhk.co/seponidozit/w2jagj0/cartoon_wars_mod_apk_3.pdf
    • https://static.s123-cdn-static.com/uploads/4417809/normal_5ffa19686ee0f.pdf
    • https://static.s123-cdn-static.com/uploads/4414339/normal_60040c45caaad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/dobikasukavu/55033018536.pdf
    • https://s3.amazonaws.com/xufaxoferugod/citizen_eco_drive_watch_perpetual_calendar_wr200.pdf
    • https://s3.amazonaws.com/xufaxoferugod/drill_bit_sharpener_guide.pdf
    • https://s3.amazonaws.com/fasomusogapovi/charkha_mera_rangla_sad_ringtone.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f735.bin
f459e8558dc60d6f170039840b461998eec5fc2a9a44ed287a95e16d3c1e8b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF735 9012 bytes
font_01_sfnt_off00011513.bin
c1df5179586eeeac36ea1dc60589bdf4a9dbbc70bc6973a0809b9f534c18257a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11513 4688 bytes
font_02_sfnt_off000124df.bin
3574fad0efd239829530cadeec7c3b687f3b5395b85506da6a9e0495fd8684fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124DF 10224 bytes
font_03_sfnt_off000147dc.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147DC 4324 bytes

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