Malicious PDF — malware analysis report

Static analysis result for SHA-256 57916ea1dad0b195…

MALICIOUS

PDF

79.0 KB Created: 2021-03-16 05:50:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9d1ca66dbdbd78bc48499800ef227fe SHA-1: 9e567bdd7b21ce448a4b03c6b1b1d1a375652eb3 SHA-256: 57916ea1dad0b19530a888523ac29a1d7ec935bae75d54840199430763377bc1
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains text related to search queries, suggesting a phishing lure. The presence of multiple external URLs indicates an attempt to redirect the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://midufefew.ru/aws?utm_term=collect+like+terms+meaning+in+maths
    • http://copyrighytsupport.com/obduction_villein_number_222eo3cl.pdf
    • http://gebuhrenfrei-mein.com/sample_classroom_management_plan_middle_schoolqu4uq.pdf
    • http://samettemiz.xyz/42479643780a7zl4.pdf
    • https://ragulifogikub.weebly.com/uploads/1/3/3/9/133986704/f23ad53.pdf
    • https://kisagisetiduke.weebly.com/uploads/1/3/4/7/134762251/wenawewavigudup_rizef_labar_lozoketeno.pdf
    • http://gifinibufenatar.medianewsonline.com/girepekavujukezunosuwagu.pdf
    • http://probkin34.xyz/tadisibalexubinusetusinik56por.pdf
    • http://fukijuwevo.getenjoyment.net/8516601552.pdf
    • https://static.s123-cdn-static.com/uploads/4446781/normal_5fccb13d3758c.pdf
    • https://cdn-cms.f-static.net/uploads/4530323/normal_603cf2bba6001.pdf
    • http://ninomut.sportsontheweb.net/how_to_connect_ihome_wireless_keyboard.pdf
    • http://beliyden.xyz/42368510357vfigf.pdf
    • http://lezobul.medianewsonline.com/arduino_cnc_machine.pdf
    • https://static.s123-cdn-static.com/uploads/4501996/normal_60060ea03dfcb.pdf
    • https://saboruxeketeg.weebly.com/uploads/1/3/4/8/134850947/ab5276d48e.pdf
    • https://cdn-cms.f-static.net/uploads/4486051/normal_600eb1b543165.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://d75bbb92-b0e4-4b50-83e6-2443e695523b.filesusr.com/ugd/bc73b9_defb60d5cd3f4ec58fb11c3102a32fb2.pdf?index=true
    • https://s3.amazonaws.com/latufenaw/54750817904.pdf
    • https://4900ecec-7ac1-411c-be2c-b077674085c8.filesusr.com/ugd/493135_94acd23bcce04b709240e6d19fb4c816.pdf?index=true
    • https://s3.amazonaws.com/telasebisu/company_safety_mission_statement.pdf
    • http://pekamidakoj.atwebpages.com/58253623218.pdf
    • https://s3.amazonaws.com/kisimujuk/wigigeboderokitisozakogup.pdf
    • https://e53c8fcc-339b-4d8f-83f6-44ddc8c6ace4.filesusr.com/ugd/1ea9c4_6868c151134046aaa2f1aa9e9d1d88e8.pdf?index=true
    • https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_33c9bc0ef28c47d3870f07288bf9bfe8.pdf?index=true
    • https://s3.amazonaws.com/wanasuvedigo/zipifedexipuj.pdf
    • https://s3.amazonaws.com/mamukawaxatali/tolalun.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea72.bin
071cb6f655df42da164c237e85d4246cf09ba96c5aa8f2fcbdc0bb98da6aec26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA72 5088 bytes
font_01_sfnt_off0000fb82.bin
9d80b7d3fc571b4f47987647615ae781617255a0db51e1efd72c692d90cba450		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB82 10708 bytes
font_02_sfnt_off0001204b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1204B 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.