Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2258c2bec30041…

MALICIOUS

PDF

88.5 KB Created: 2021-03-25 05:24:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2d81ca49cd7e767f7afcfe1b32aa376 SHA-1: f3b61ab716fdb53e0e5d42ebd372c21168312e30 SHA-256: 6a2258c2bec3004129c13b17d5ef7ae591879826a5143e651ca7b66a8333df7c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of embedded URLs suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=coran+en+fran%25C3%25A7ais+pdf
    • https://lexawuvake.weebly.com/uploads/1/3/4/6/134610488/ganifezizefu.pdf
    • https://cdn.sqhk.co/sipebesoxu/gjpcJjg/tozogivubimafoduvoge.pdf
    • http://pululap.22web.org/antigona_sofocles_millor_fernandes.pdf
    • https://cdn.sqhk.co/dudugetogi/87Fgjbb/sevaribevugerulin.pdf
    • http://tapabafana.22web.org/70136360866.pdf
    • https://sovanomi.weebly.com/uploads/1/3/5/3/135337195/dikojajubadoruse.pdf
    • http://worelimupuvefam.mywebcommunity.org/20437208249.pdf
    • https://nogexumojadug.weebly.com/uploads/1/3/4/2/134235638/mutaninetat_tolebado_veviba.pdf
    • https://cdn.sqhk.co/vipatajase/gjsQEYT/43049399820.pdf
    • http://suzamakulamuj.mypressonline.com/zebofetukarakoripoxevoda.pdf
    • http://texukajiz.iblogger.org/40441335299.pdf
    • https://cdn.sqhk.co/vanewano/HjiheTU/space_flight_board_game.pdf
    • http://sejapamuji.22web.org/nivenelemobogukeket.pdf
    • https://xarudaxukisa.weebly.com/uploads/1/3/4/0/134018653/676892a1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lovomijelun/jukulumo.pdf
    • https://s3.amazonaws.com/luxelula/21940595972.pdf
    • http://buralusu.rf.gd/womikamimevebupi.pdf
    • https://s3.amazonaws.com/zabejuvijolu/zidomanafebazusasuj.pdf
    • https://s3.amazonaws.com/wupixufekijax/car_value_guide_nz.pdf
    • http://gabixemi.epizy.com/kenmore_he3_washer_error_code_f_dl.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
    • 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_off0000fd3f.bin
d1d7ed0c36e6693c1b7ba7a8409391f47ecb9c0d86d0c8a9eaefa9d45f9f164f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3F 5092 bytes
font_01_sfnt_off00010e9f.bin
d192e1499008fc27aac0f50c4f028296518917cf45371393faeb68775441d58b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9F 13076 bytes
font_02_sfnt_off000137e1.bin
3f62f78a15e61760c781e96672fa3d3aea3ac213679417cd6aa8f65c3bcc8a45
pdf-font-stream PDF embedded font (sfnt) at offset 0x137E1 17824 bytes