Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ba3aa6122d72e6…

MALICIOUS

PDF

234.0 KB Created: 2021-03-27 19:10:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: da073eb4d41d3743cc55809a17b048c6 SHA-1: e591c3c23ce23a46090ef04c10e27b9a7c405aa7 SHA-256: 35ba3aa6122d72e60f19ae705ddeebbab5340e37a5403ef3ac08838038660d41
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, contains keywords related to legal documents, supporting the lure tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://midufefew.ru/award?keyword=law+department+manual+haryana+pdf PDF link annotation
    • http://lokogosomezik.iblogger.org/wexokoviwukow.pdfIn PDF document text
    • http://dedotiroviwef.22web.org/canon_print_service_android_4._4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuvozakini.epizy.com/faux_amis_anglais_francais.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bcd2c45-8f6a-4e0f-b7df-1783638d3483/why_does_my_smoke_alarm_keep_beeping_when_i_have_changed_the_battery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb1108da-3acb-45e2-8349-31476d056ad8/hp_pavilion_dv6000_quanta_ram_supporta.pdfIn PDF document text
    • https://f516a5e5-1936-4b34-b436-a929b3a34b8d.filesusr.com/ugd/774001_9c5933f9b0d34f03a35b8df1ac44257b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/060d9e54-230c-4dc3-81fc-f61dae50825f/ion_block_rocker_max_ipa76c2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14a6da70-a4a6-4375-9d65-9ad7ccff1aee/dell_7010_sff_core_i5_desktop_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d1552c1-3c2c-448d-8e2d-286d902c2b58/sifakoxejav.pdfIn PDF document text
    • http://lapodalojowev.rf.gd/succeed_in_cambridge_cae_10_practice_tests_key.pdfIn PDF document text
    • https://50037ee0-0691-4a53-bdc2-b2f8f795cfa6.filesusr.com/ugd/b41a9a_dc91810f62f74ce1a74c861c7cbb5204.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/56a684f3-a43b-451f-8951-2d6ea817d625/quran_english_and_arabic_app.pdfIn PDF document text
    • https://a1f0096d-76f5-425c-b826-5ccbd312c1bc.filesusr.com/ugd/8f8c07_13a0eb3c1c84458ea07e675cfec41637.pdf?index=trueIn PDF document text
    • https://3175e58c-9db9-4d87-bcb9-15e03531d93d.filesusr.com/ugd/c93210_abf031d3d0464fab9d9fcafebfb2b5c4.pdf?index=trueIn PDF document text
    • https://d6504552-49b0-4b7d-b1ff-94f9e1082b83.filesusr.com/ugd/1f0558_da94aa66ad3848ee8f03c04908373e7d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bubeto/ratio_analysis_balance_sheet_format.pdfIn PDF document text
    • http://kagiweluxipo.epizy.com/95467696188.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/fitabejuka.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/angry_birds_go_hack_apk_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/jiwoxanagupuruzesemab.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/nedenisowutiwomagez.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_off00035c43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35C43 5240 bytes
SHA-256: 9833f31facc2901f3ebaaffabd1663b3630ac113bea903087e4c6f6864545a97
font_01_sfnt_off00036e06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36E06 12024 bytes
SHA-256: 6c7054f22abbf6bcd95128ded91e840e45d41fd8dc2ddf773761bf2cad8023f6

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