Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aee887ae6b6e5d4…

MALICIOUS

PDF

1.48 MB Created: 2021-04-03 23:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5ab05e1951ff7c29d5f33ade6201f065 SHA-1: 5a4c4232c3df9a5db2ec6a4576a7d05841167a33 SHA-256: 0aee887ae6b6e5d468a17a18ecb0530d4501876dbf33686d4f23a21a8a17235c
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ClamAV with a signature indicating it's a PDF phishing trojan. The document body and extracted URLs suggest a lure for downloading a 'Bim handbook pdf free download', which is a common tactic for phishing or malware distribution. The presence of external URIs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0074

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://fokemale.ru/wix?keyword=bim+handbook+pdf+free+download PDF link annotation
    • http://���rstmonday.org/article/view/3173/2647In PDF document text
    • https://cdn.sqhk.co/giganopof/fhijZkr/how_to_do_steel_ball_run_yba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421639/normal_5fc97a70c59b9.pdfIn PDF document text
    • http://revafazamige.iblogger.org/c_d_a_ka_full_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500679/normal_601fabbb182ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480732/normal_6042fa62161e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487905/normal_6042d73e219e5.pdfIn PDF document text
    • https://cdn.sqhk.co/jawefujivi/hMweYhg/world_cricket_championship_lt_mod_apk.pdfIn PDF document text
    • http://zuluwana.iblogger.org/42424589455.pdfIn PDF document text
    • https://cdn.sqhk.co/zedozomi/hbazPKC/zesezipabodelita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416154/normal_6033bc56410f5.pdfIn PDF document text
    • http://kameregeperiwaz.22web.org/7705504371.pdfIn PDF document text
    • http://zowefokixot.iblogger.org/38655913348.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ff536187-e25a-4bd2-965b-ff1113cf40b0.filesusr.com/ugd/bfcccc_53e5571f489a47ff9ac7a82ee6086217.pdf?index=trueIn PDF document text
    • http://mojofukiw.epizy.com/treble_clef_ledger_lines_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf433dbc-a4a9-4566-825b-2b31082171fd/kubavosujarimojil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64834ddf-745f-4564-aef1-c2f2d11888ec/zifekegodupafixevefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6098e306-af4e-4f71-a460-2ba0171b0dcc/24062329088.pdfIn PDF document text
    • http://xotivigafutuzul.epizy.com/tonasonax.pdfIn PDF document text
    • https://29aa9d28-cc9d-45fc-8d86-3718b5881c84.filesusr.com/ugd/74c34a_7cb3fe81695047bbb98f8dc618618258.pdf?index=trueIn PDF document text
    • http://lavavoju.rf.gd/contents_of_feasibility_study_report_documentation.pdfIn PDF document text
    • http://fejivexol.epizy.com/rasewifevolupomipugosowej.pdfIn PDF document text
    • http://kefegaruxofum.rf.gd/gexorure.pdfIn PDF document text
    • https://4a0f17ac-6ce6-4c05-9546-25c48d39d9f7.filesusr.com/ugd/cd79e3_bc22ecd9a814491e980cf4d2d8a61e4e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/01843029-ca21-4f2b-ba2d-cb6af07dbe08/61886968521.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/626c4d63-f8c0-42bc-851a-9e2fd0a42774/sipulal.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off001729dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1729DC 3000 bytes
SHA-256: 0da191eae8d951069fa02755096dbc0aa9d96f2a7df9864a94dbd18b078da2f0
font_01_sfnt_off0017348a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17348A 5448 bytes
SHA-256: 74a70f7a8c39eae008f5527b483073177aa543e74b78dafae81940f7bd409dbc
font_02_sfnt_off00174702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174702 15092 bytes
SHA-256: 8969e85e930c3367534422ff89cc23f7793c8110d6529033bd9c07281f765d35
font_03_sfnt_off001777b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1777B9 16992 bytes
SHA-256: c2cb9ee67e3582301d87b3b8e86626d48ad428150081aa62e6d0855f040d467a

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