Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb7e03046230bc5c…

MALICIOUS

PDF

162.6 KB Created: 2022-06-03 15:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 6d59329b7b85e03cd3049a1fc53c71a0 SHA-1: 7b190b703e8466f0cec7c71b4a0f603a5ae887f5 SHA-256: fb7e03046230bc5c3bdd64ccb2e32d6b172495e65cb13f2df3c59dacdcc02102
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded JavaScript and an external URI pointing to a suspicious domain, indicating an attempt to redirect the user to a malicious site. ClamAV detection and ML classification further support its malicious nature. The embedded URL, https://cafij.co.za/XSRYdR1H?utm_term=parasite+infection+game+guide+answers+key+2020+free, is the primary indicator of the attack's intent, likely to deliver a phishing page or a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7681

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
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cafij.co.za/XSRYdR1H?utm_term=parasite+infection+game+guide+answers+key+2020+free
    • https://lordoptika.hu/files/files/71537764072.pdf
    • https://wesuzimowigimeb.weebly.com/uploads/1/3/4/7/134745326/2436193.pdf
    • http://lapawan15.com/shop/fck_file/file/ferobajaz.pdf
    • https://vinovebavelugis.weebly.com/uploads/1/3/1/3/131383284/porabil_duxakinur.pdf
    • https://gatelixepa.weebly.com/uploads/1/3/1/1/131163507/gusafozekamuvos.pdf
    • https://dijigizofeve.weebly.com/uploads/1/4/1/7/141766184/6514572.pdf
    • https://valoxapemep.weebly.com/uploads/1/3/4/3/134305175/2506978dbe0a70d.pdf
    • https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/60994976140.pdf
    • https://wupuvogobed.weebly.com/uploads/1/3/4/5/134507139/3321076.pdf
    • https://hunglivet.com/uploads/files/202202200301124426.pdf
    • http://phanphoiongnhuahoasen.vn/upload/files/sososivafetozow.pdf
    • http://vincentiancongregation.net/www/js/ckfinder/userfiles/files/20935834645.pdf
    • https://vas-muszakibolt.hu/userfiles/file/zigumupipotoxuked.pdf
    • https://sulefufevonabu.weebly.com/uploads/1/3/4/3/134363738/vaviforiken-legukoxojowirij-poruf-tolat.pdf
    • https://zoxawilasewowi.weebly.com/uploads/1/3/0/9/130969521/nalaxut_tebafetulibuso.pdf
    • https://wuzetawitowozuz.weebly.com/uploads/1/3/1/3/131381497/siwosulezetilesixiso.pdf
    • http://ke-sen.com/userfiles/file/1650771149.pdf
    • http://eintracht-bayreuth.de/kcfinder/upload/files/16039799059.pdf
    • https://kuvofexe.weebly.com/uploads/1/3/1/1/131163751/duzamitosiz-golatawuz.pdf
    • http://www.kickcommerce.com/userfiles/file/90601739916.pdf
    • https://vafabifagid.weebly.com/uploads/1/3/4/5/134583570/gadaf.pdf
    • http://forsheda.se/admin/kcfinder/upload/files/sibatebomopozupevab.pdf
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1623f0d0cc7a28---47948202446.pdf
    • http://montagnobozzone.it/userfiles/files/migalaginulakagisavi.pdf
    • https://gawuwusirijer.weebly.com/uploads/1/3/4/1/134108670/9939b10003.pdf
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/162998b8c74416---96740941168.pdf
    • http://qdjshg.com/files/file/raromovawigefusap.pdf
    • https://wirejosesem.weebly.com/uploads/1/3/1/8/131856641/radiw_kuvap.pdf
    • https://kerijifulonuf.weebly.com/uploads/1/3/5/3/135328136/purofumufenute.pdf
    • http://qunjl.com/userfiles/files/ruxidodadozojo.pdf
    • https://zirakamu.weebly.com/uploads/1/3/1/3/131398357/228e6da2dfe.pdf
    • https://kaxawoxo.weebly.com/uploads/1/3/1/0/131070710/6502111.pdf
    • https://kimazidojo.weebly.com/uploads/1/4/1/3/141317470/2989915.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://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_off000214d5.bin
25a656d210276661b35034c9f412f6ae410872dbecb55111b1c2e8960c070104
pdf-font-stream PDF embedded font (sfnt) at offset 0x214D5 11408 bytes
font_01_sfnt_off00022fc1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x22FC1 16792 bytes
font_02_sfnt_off000247d3.bin
ad176ecba6bd93d78e4dc67f3d727a8b269c78080ee54b8579b89b6c3bd8af6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x247D3 19352 bytes