Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1e7d0342e5cb931…

MALICIOUS

PDF

78.7 KB Created: 2021-03-09 03:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2b3eda257f6c31e96a6b5607a87d8887 SHA-1: 156609bd8145e641c4d2e942c3c0ad523e32e42b SHA-256: c1e7d0342e5cb9311a2b098c2ba82beecc3d5958125ee97d7b10c19990d2a509
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/123?utm_term=blank+number+line+to+10+worksheet PDF link annotation
    • http://mexuloxuxinona.iblogger.org/sukikazuwadapepuzomuvoko.pdfIn PDF document text
    • http://mofolaz.22web.org/is_season_3_part_2_of_attack_on_titan_the_last_season.pdfIn PDF document text
    • http://xokoden.22web.org/18275486190.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://petizitopebil.epizy.com/cup_song_ukulele_chords.pdfIn PDF document text
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_36a897ff1855459183cfca6427ab8c25.pdf?index=trueIn PDF document text
    • https://a98f38e8-5810-4fc9-be6a-c3d78c7c4f9f.filesusr.com/ugd/921909_44e13846ff9f4b478bcc3cd0c2696591.pdf?index=trueIn PDF document text
    • http://zuxebalu.rf.gd/mafovepitu.pdfIn PDF document text
    • http://jipumenovimol.rf.gd/mathematical_physics_boas.pdfIn PDF document text
    • https://438c9214-13ba-44a2-8469-a4c97ff43377.filesusr.com/ugd/5d46a0_3c5338289c3d4038aa506e3b99ad73d1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/zurego.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/hitman_bodyguard_movie_in_tamil.pdfIn PDF document text
    • http://netobuturove.rf.gd/sig_sauer_p239_9mm_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/how_to_use_an_oster_blender.pdfIn PDF document text
    • http://ridezosasi.epizy.com/arteriosklerose_ernhrung.pdfIn PDF document text
    • http://ximogubofew.epizy.com/flag_football_fanatics_stat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/deep_blue_sea_2_movie_720p.pdfIn PDF document text
    • http://mafilijesov.epizy.com/wrong_information_on_credit_report_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/math_puzzle_worksheets_8th_grade.pdfIn PDF document text
    • http://lenoguxeg.rf.gd/xiwojodap.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/jexukutawurebadururi.pdfIn PDF document text
    • https://571cbd0a-ba82-408d-be6d-2df53a8fcfe5.filesusr.com/ugd/02af14_cf7a2e1741d04f43a9861a6ce6f96382.pdf?index=trueIn PDF document text
    • http://tibimixokafif.epizy.com/swanson_speed_square_user_guide.pdfIn PDF document text
    • http://gowamatul.epizy.com/82157103511.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/69509375433.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_off0000f68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF68B 5464 bytes
SHA-256: b62febc8d9196064d84f20388f00ca6cea0a1f3ffe2f754866c833e379d6833b
font_01_sfnt_off0001090b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1090B 10564 bytes
SHA-256: 5cb5808b34c783be9772d3c051890fb4af3403042ec203fa1eb51e9e876f1117

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