Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f635129c9307fe6…

MALICIOUS

PDF

66.7 KB Created: 2021-02-14 15:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a3a0681823cf00d29ad6a2725eda0e85 SHA-1: 1d64fe172b4053e6cd2f905fe718402b34ffe637 SHA-256: 6f635129c9307fe6090cc3caeb4494527a6b896732700db9a269f71163e68ab2
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 0.9998

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/wix?keyword=boxhead+2+play+rooms+hacked PDF link annotation
    • https://cdn.sqhk.co/fixakozumad/jHcuSgf/rotator_cuff_tendonitis.pdfIn PDF document text
    • https://cdn.sqhk.co/dapumexader/tZTfEjd/heartsong_clinic_in_clearfield.pdfIn PDF document text
    • https://cdn.sqhk.co/gijosevozu/ghjiLvm/72210942380.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/ic91icy/masha_e_o_urso_para_coloriri.pdfIn PDF document text
    • https://cdn.sqhk.co/sazalevimit/VieihPQ/idle_zombie_walker_the_walking_dead.pdfIn PDF document text
    • https://cdn.sqhk.co/sejujona/ZWidjha/xonulagixavuwaposu.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/gfmii9e/virexirekufeparasix.pdfIn PDF document text
    • https://cdn.sqhk.co/barugogip/hija5uS/gerimagikidatokojami.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/BHjgjiN/ion_water_rocker_party_speaker_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/1jbKJKa/wujebivesep.pdfIn PDF document text
    • https://cdn.sqhk.co/torujazelome/bTt8fgi/supply_house_promo_code_february_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/tifomogoketu/6jcZXje/15560277134.pdfIn PDF document text
    • https://cdn.sqhk.co/nisisepolo/aKBideA/mibawo.pdfIn PDF document text
    • https://cdn.sqhk.co/lovuzegonu/tjaaPjh/fozolilowetaruwo.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/9J8qqgi/amazon_assistant_android_chrome.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zeraginijumeje.epizy.com/kaperagujaminuwuxalakipu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E4 5728 bytes
SHA-256: 664569949e8664cca824f82d57fa6f7fbe1c353cdaf96fbdac541ad2ddbf433b
font_01_sfnt_off0000db44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB44 10220 bytes
SHA-256: 946e60963d3880d6fb335e1e5b2a0552908638daa353d966b018847149347b9d