Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de7cc9d2587b4ff…

MALICIOUS

PDF

71.3 KB Created: 2020-11-20 23:40:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0c538b735467f7d23bcf7bb49e11ee4c SHA-1: 9cb21d162a976eac7bab5a2f8f1878026d454bf9 SHA-256: 7de7cc9d2587b4ff5c301a616db94a84800ea752be0655bfa1ee91b15190207d
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/123?utm_term=chol+hamoed+2019 PDF link annotation
    • https://kapovisawok.weebly.com/uploads/1/3/4/6/134652754/bekokivixibidij-pavarejigo-javajesow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389570/normal_5fabf334f414b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428329/normal_5fb4296dc58c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497348/normal_5fac17d8a5f5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8d6dfbd6892.pdfIn PDF document text
    • https://debaduvevuw.weebly.com/uploads/1/3/4/3/134383420/zukutolure-petikibo-pajajugogilaj.pdfIn PDF document text
    • https://vatipasa.weebly.com/uploads/1/3/0/7/130775610/f63a11f6e66d70c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422168/normal_5fad9649a426b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366622/normal_5f876da86ade1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456132/normal_5fa18988cb8f4.pdfIn PDF document text
    • https://peturenu.weebly.com/uploads/1/3/4/4/134401199/nuxexivemanuje_xefigigini_jenipopakuwuvi.pdfIn PDF document text
    • https://tetobalowuw.weebly.com/uploads/1/3/4/5/134523757/kidufewemog_minivunukobu_kitifiveb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/nifinizififojisonav.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/keurig_model_k150_operators_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/womobatuvikob.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/rocketfish_wireless_speaker_kit_manual.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_off0000dc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC32 5180 bytes
SHA-256: 1c365796f5789cb896ecf3363393b98a4d719720b6d43d671a23c01e7013734a
font_01_sfnt_off0000edaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAA 10240 bytes
SHA-256: 242a570fbba35830da7ffac45d8b819fa74dfec7ffa6651a680484ce9513c887