Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6af4b588dcf6254…

MALICIOUS

PDF

73.2 KB Created: 2021-02-05 04:48:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a3d0106c0b36469bb87e1a05027e1d1a SHA-1: a1ee97341e007daccd4b1572e912d7cee0bed2f8 SHA-256: e6af4b588dcf62541500a11461517fc49b93f502a3fc92a838ced8173ea39d61
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document body contains text related to a 'Jio video call app' lure, and an embedded URI points to a suspicious domain, likely serving a malicious payload. The presence of embedded URLs and the phishing lure suggest an attempt to trick the user into downloading further malware or visiting a malicious site.

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://baarspo.ru/aws?utm_term=jio+video+call+app++now PDF link annotation
    • http://sofuwabafa.iblogger.org/carbapenemicos_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/dukapudubi/jdIXgdo/43560343066.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421354/normal_5fce692fbf8d3.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/6c2tIqv/23738647264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469103/normal_60121811c6832.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450418/normal_5fef9af5e6fb3.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/hjguLU1/a_homemade_bug_trap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488810/normal_5fe4ff54c3634.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/cndeOja/propane_forge_idle_circuit.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/defipedibe/solar_fire_astrology_software.pdfIn PDF document text
    • http://ligagenaragad.rf.gd/dependent_prepositions_esl_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/74035863661.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/formalism_in_literature.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/android_emulator_black_screen_linux.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_off0000e3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FD 4932 bytes
SHA-256: 767d2fe7ca4ac261c7664b0fa8922576f1ebe907c3802ef26b6367895627804a
font_01_sfnt_off0000f4ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EF 10320 bytes
SHA-256: 4e3514efea1ff69751fbed156284e53cd427f96a81256a6614edaa4f1be2e5ee