Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe7fd0c1ad450b9…

MALICIOUS

PDF

75.6 KB Created: 2021-03-26 07:10:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57648ecd32bed1d5df5418d72dbb9812 SHA-1: 4617295281d5572cc4c13e4b2196ae51f757dd32 SHA-256: dfe7fd0c1ad450b97d5c8382ddcbee63c399b6a623383e4bc7507a042a155319
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF_URI heuristic suggests the document is designed to redirect the user to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://botokaw.ru/award?keyword=solutions+to+poverty+in+africa+pdf
    • https://cdn.sqhk.co/xokunafuse/dihUojc/getemebexejozokigejiniwu.pdf
    • http://kulanefimolon.mypressonline.com/6322443775.pdf
    • https://lavefikamov.weebly.com/uploads/1/3/0/8/130813740/6216343.pdf
    • http://fetizona.iblogger.org/are_lexus_es_300_good_cars.pdf
    • https://joposiga.weebly.com/uploads/1/3/5/3/135399072/449216.pdf
    • https://cdn-cms.f-static.net/uploads/4377717/normal_5fd869a253bf8.pdf
    • http://zokixofevuku.22web.org/71799747127.pdf
    • https://cdn.sqhk.co/wuwexosul/1geAyjf/58211391341.pdf
    • https://cdn-cms.f-static.net/uploads/4420910/normal_604af15c66223.pdf
    • https://woxabofubal.weebly.com/uploads/1/3/0/7/130739449/5ebcb6f0799609c.pdf
    • https://faporipito.weebly.com/uploads/1/3/4/6/134600592/bece8559eb02.pdf
    • https://cdn-cms.f-static.net/uploads/4373757/normal_6035847c8ec5a.pdf
    • https://cdn.sqhk.co/vituxezij/igoGzgg/62524548464.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bazokupakem.epizy.com/how_long_does_it_take_to_count_to_20_000.pdf
    • http://wetizizokixo.epizy.com/6148426737.pdf
    • http://nogapovo.rf.gd/cipd_workforce_planning.pdf
    • http://tefosotolubexob.rf.gd/exercises_present_simple_passive.pdf
    • http://rajemezipuz.rf.gd/48988637861.pdf
    • http://ruvemad.myartsonline.com/mumapovivabofu.pdf
    • http://rigitusavogu.epizy.com/3090763023.pdf
    • http://suwuxuk.epizy.com/jegufesowuragubu.pdf
    • http://zesafemumibow.myartsonline.com/84317325733.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e68b.bin
ed13f7d916891ffa5b9a6485fd59d29626d1a586f21b07e5eb0f548f642f4c10
pdf-font-stream PDF embedded font (sfnt) at offset 0xE68B 5416 bytes
font_01_sfnt_off0000f910.bin
8b9910ae640de24d6f9c856d605dd7db7b8bebd4febf444b7c5894328c833d4c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF910 11568 bytes