Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6e21ffe9bf32b6…

MALICIOUS

PDF

83.2 KB Created: 2021-02-26 06:36:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 986be9c76e9f2a819ae9920ce37a43c5 SHA-1: 7f722d60017f9913507b56c0808424631f4408b3 SHA-256: 8e6e21ffe9bf32b69f325f81da730510be035df3925b79e63b2afe289991d70d
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as 'Pdf.Phishing.Trojan'. The ML classifier also flagged it with high confidence. The document body, though heavily obfuscated, contains text related to '3-4 angles of a triangle worksheet answers' and the wkhtmltopdf application, suggesting a lure to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8960

Heuristics 3

  • 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
  • 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://bologen.ru/award?keyword=3-4+angles+of+a+triangle+worksheet+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476927/normal_5ff3eeccdb15b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413369/normal_602c230145b30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417315/normal_5ff0e5c20e12b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393361/normal_602c87cd06991.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/jjijOid/xafumu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383445/normal_5fc73801b91eb.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/dukipufikatuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365545/normal_603045a122066.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/djbFWid/maxerovuwevalibe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444623/normal_5fe5442fb4799.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/71607666405.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/mgcgdji/money_machine_2020_trailer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://subuvitoruxev.rf.gd/barutasamopikeluwijota.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/brenda_fassie_songs_black_president.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/bath_sheets_online_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/letter_format_for_school_admission.pdfIn PDF document text
    • http://titarejidawe.epizy.com/android_16_17_18_dragon_ball_z.pdfIn PDF document text
    • http://lugirike.epizy.com/tabaxux.pdfIn 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_off00011bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BC7 5372 bytes
SHA-256: a5fc0d099e44699bb2206d316831f2c8e43e7d01edd74cbfe2b2959a54cb1683
font_01_sfnt_off00012e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E2F 10720 bytes
SHA-256: 1a86ff215443ac80d00ca9aafe51a02ae167f016b6fe2f6d63801ae1305d6924

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