Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75f0463f17035fd…

MALICIOUS

PDF

89.2 KB Created: 2021-03-12 06:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a0dcad54aeaccf8dc6d98d2d98355310 SHA-1: 581884c1ae0344079d9ccc3d15420241dcc5e3bf SHA-256: e75f0463f17035fd17619465a55a57d141c883c0d01b0723a3775667ff95ace2
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing. The document body's content, though heavily obfuscated, appears to be a lure related to a song title, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://pelibifir.ru/123?utm_term=biggy+dames++song PDF link annotation
    • http://reduslim-italiaoficial.site/vetedimoviwijonojolukopajqe8mt.pdfIn PDF document text
    • http://vovpomnim.ru/26743046351xsehz.pdfIn PDF document text
    • http://leree6.club/extreme_jet_ski_of_orlando9z4m6.pdfIn PDF document text
    • https://setowunujabid.weebly.com/uploads/1/3/4/0/134095848/b5c82b82b98bf30.pdfIn PDF document text
    • http://oneitshop.info/wuxanawetetiwwpivx.pdfIn PDF document text
    • http://meetdouche.xyz/switch_steal_unwrap_gift_exchange_free_printable72rlp.pdfIn PDF document text
    • http://jelolizabuvixi.22web.org/58725254508.pdfIn PDF document text
    • https://lasapiboxemifol.weebly.com/uploads/1/3/4/8/134865682/3275714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472208/normal_6042f38ae7636.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488807/normal_5ff342414a4de.pdfIn PDF document text
    • http://wukivobezoba.iblogger.org/siwakujefolufirig.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/8037333.pdfIn PDF document text
    • https://marodesama.weebly.com/uploads/1/3/5/3/135349202/cd45b6983.pdfIn PDF document text
    • https://filajusarapobu.weebly.com/uploads/1/3/4/7/134761194/bomudifinevet_safosegobufere_vifikebafi.pdfIn PDF document text
    • http://healingtunes.ru/andreas_moritz_wife_lillian4pd79.pdfIn PDF document text
    • http://kelnoteres.xyz/419126003241p9r4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://junusesofuxog.rf.gd/basic_grammar_test_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/59191225802.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/32957668770.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/job_interview_questions_to_ask_at_the_end.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/answer_to_complaint_pennsylvania.pdfIn PDF document text
    • http://lonuzokubezuva.epizy.com/fofiloti.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/baul_song_2018_video.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE516 5168 bytes
SHA-256: f43b86aee238ed2270707fb960b94f41b053a55142a304d656ddc45fe7d69112
font_01_sfnt_off0000f6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A2 7496 bytes
SHA-256: cfa50b4bfd0e6308003eb0b255c83ad55d3cc058dfa9a5e75dc660a6c8420340
font_02_sfnt_off000110d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110D2 11448 bytes
SHA-256: cb38d7cf47d4da38dc9ae738fbf26799d54f21fd1320106ed53d3972db12f89a
font_03_sfnt_off000137ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137AE 16720 bytes
SHA-256: f20ff0e24c6ec5d7a83e0f1fc00b2129db5ae1503ea3b6ffdd888ac14f786f32
font_04_sfnt_off00014eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EAF 1736 bytes
SHA-256: 0d9b6ab0354368cdfa5a4e52e4dfb250ede80cec4283e48fafec0a3c1c1d30df

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