Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e6642cee300fb5a…

MALICIOUS

PDF

78.9 KB Created: 2021-05-21 20:16:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6400590e997435df0a81e0db5891923 SHA-1: 7a4f76b0798c8b5f950df49660a5ce61920c9f22 SHA-256: 7e6642cee300fb5ac8af37c93904f63d45befad72fa65ab51919921c4078a598
116 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains embedded URLs, one of which points to a raw IP address, indicating a likely attempt to redirect the user to a malicious site. The document body, though partially corrupted, suggests a lure related to a play review, which is a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://coretry.ru/uplcv?utm_term=rese%25C3%25B1a+de+la+obra+de+teatro+romeo+y+julieta
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a56a558c4---zekarezilexenibuk.pdf
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087a0c5e969c---jabavatuxasubaloju.pdf
    • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/04e8db26cbd7e8e10317a257d0ebb1cb/bolowepeseteporima.pdf
    • https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/1433b955b80f4957e1f75866827a9acf/61231483149.pdf
    • https://bancodevida.com/bancodevida/admin/images/image/file/49731750462.pdf
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/v353hqspjv0ouamubvgm2c8ulr/rufaruritunovabirote.pdf
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/6b8ad71ca199abf71a2004a2f3a43d44/jopiruwefajomijobexu.pdf
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a28608334a0---16279996427.pdf
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607b93573cba1---26413088308.pdf
    • https://autosaloncenter.com/uploads/file/77748589089.pdf
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/8ici16kug7005lnk2pgp6ih5c7/36022256077.pdf
    • http://guides2alpes.fr/uploads/file/bogewemo.pdf
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8a6ebfe8e---24681136476.pdf
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160a79273b5974---31611610135.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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
    • 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_off0000de9d.bin
e315b34ff69d8ed557f8c283a2484f932030fdfbbdcfc8bf86bbfca4704a4f0b
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9D 5508 bytes
font_01_sfnt_off0000f106.bin
c3d090347715f95e3e788d5a028785e967845c43b4f195f7a3be4a7c2537ee7e
pdf-font-stream PDF embedded font (sfnt) at offset 0xF106 11504 bytes
font_02_sfnt_off000116ff.bin
9c7926b8929b88a1dffb52ec04bcfb477868fd459509337312ce674bafabbb6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x116FF 16192 bytes