Malicious PDF — malware analysis report

Static analysis result for SHA-256 9545625d8a88262f…

MALICIOUS

PDF

82.8 KB Created: 2021-02-16 08:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0955af7f63a7be4b06c9b17a874af1d6 SHA-1: 1fcd6695d431fd228760bcfb4848bed9b70fe59f SHA-256: 9545625d8a88262f2ad250a69f19705b1f714feae3deb0983f2729ea40a028c8
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=entry+level+digital+marketing+resume+samples PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369311/normal_5fd6a72c48c14.pdfIn PDF document text
    • http://delaem-sami.online/7193761799429ajy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_6027128f42ab0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391305/normal_602b28daccad0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414849/normal_5fc9b8d05135f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487935/normal_6003be01d908e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422645/normal_601b9f192c5db.pdfIn PDF document text
    • http://arenda-comp.space/polezesonuzunokudawetelm25n.pdfIn PDF document text
    • http://streichpack.online/28324323646kxy11.pdfIn PDF document text
    • http://ejinaya.com/6820123565hambg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449998/normal_5ff77e5b40834.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/bewibiwat/91060189045.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/employee_absence_form_template.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/landscape_ecology_forman_gordon.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/super_mario_rpg_bosses_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/movivadu.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/lotaruvusavudu.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/telugu_new_background_music_ringtones.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE261 5232 bytes
SHA-256: 64ffbed9b15ee627f1998dc6dbb0c068123107adfd14ce174ef55a02c138885d
font_01_sfnt_off0000f420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF420 11684 bytes
SHA-256: 15f7f6cca1518e186145377d1c744ca5ed1c8e0c794c32fb024b68ace9a26c8c
font_02_sfnt_off00011a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A3E 16144 bytes
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b
font_03_sfnt_off00012f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F3E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f