Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d407d01040ccf4d…

MALICIOUS

PDF

88.2 KB Created: 2021-07-02 03:08:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e42572f13e38183ef31e6c9f2209fcde SHA-1: 42e011c4b8b14501d82334e757d1f549789fb3f8 SHA-256: 4d407d01040ccf4d11eb109df4500758a70a4c9faa08763f1a598b8f6cc58968
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be instructing users to open a password-protected archive, a common tactic to bypass gateway security. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://vijyaiprismcrm.com/userfiles/files/mewupowixadalaj.pdf
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16073d370e49e4---67010190114.pdf
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/156a2341907c983444ce590718840372/59140039029.pdf
    • http://barcelonasixtytwo.com/userfiles/file/gesitazosegotajawojikof.pdf
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd5957ba86---mejikeraguzotidalep.pdf
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/1ob9rrvhb0dl076babq32h53dn/91604865148.pdf
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/ff8fb26a3a76c667e036fcad8435a962/doxevipifajubalapenete.pdf
    • http://saikunghouse.hk/userfiles/vivamuw.pdf
    • https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/588c450a0b0726819ea3fe23e50c1f90/farumekevepajop.pdf
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609321683dd02---87585307550.pdf
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/2b9059b51ddc466dc760b2a3e77b5bc5/6297739202.pdf
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b111668c91c---39288537723.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/459d448d26f81b52f1cd209beea2fa05/xelobemeganejuzador.pdf
    • http://womensmentalhealthmd.com/clients/9/9a/9a9ccad1be43d50cbc9928f06550b956/File/2672968649.pdf
    • https://deniz-sogutma.org/img/userfiles/file/24792044668.pdf
    • http://zuche0551.com/upload/file/77383891466.pdf
    • http://ciskmv.com/css/file/vavasurarewatizenimilu.pdf
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/c3460ff210d60ac505e9a37565318e77/futip.pdf
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/19b0b8616dc490824891acc2e94d3c71/51193927118.pdf
    • http://musicpark-live.de/userfiles/file/32618603389.pdf
    • http://shinies.ru/img/lib/file/moxefususogivejivobiwate.pdf
    • http://krukaiart.com/userfiles/files/mipabujo.pdf
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21c9c19704---jeworajuzakivamadojenode.pdf
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a201894e42---latuvebegizolulimuwef.pdf
    • http://aelma.com/sites/default/userfiles/file/girajurivatabakujexotul.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=deuces+mp3+song+download
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4bc.bin
34be09697814513d4cc0b89d28a120ed63ce99a9830f033b8fffdce55e5215cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BC 17436 bytes
font_01_sfnt_off0001223b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1223B 16792 bytes
font_02_sfnt_off00013a52.bin
0ee62184df07df7385d9f2df28516b1049a3ff26080b2978f0c3d4ca0962c3a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A52 10924 bytes

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