Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ee1e15128505f9…

MALICIOUS

PDF

74.5 KB Created: 2021-03-23 15:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: d1c023b139614504e3a0b62bfd589a51 SHA-1: 25e5da89013b83a044e1eaff96649e620f1c6ea3 SHA-256: d5ee1e15128505f903a2f6e1344e4b03083bda2969bb097de7871bc017158042
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 or trojan variant. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to resume writing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/strik?utm_term=how+to+write+an+objective+summary+for+a+resume PDF link annotation
    • http://taxevidel.medianewsonline.com/mobility_scooter_battery_change.pdfIn PDF document text
    • https://cdn.sqhk.co/najafizox/ghKharJ/konusogodunelozigat.pdfIn PDF document text
    • https://cdn.sqhk.co/lotuwuzu/ecJooMA/choi_game_blossom_blast_saga_online.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/aBjfgdm/birdy_gray_return_policy.pdfIn PDF document text
    • http://monubagujizud.mywebcommunity.org/lekavurubila.pdfIn PDF document text
    • http://mebovedu.getenjoyment.net/sakimipelivudasujozifup.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/ahehghe/77400053725.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tezude/android_tv_apk_cracked.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/determiners_examples_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/idealism_and_materialism.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/kabigujurufawo.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/givavonu.pdfIn PDF document text
    • http://jusapirizut.rf.gd/69409718622.pdfIn PDF document text
    • http://navenogu.rf.gd/sizidanurejewe.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/peduledosasam.pdfIn PDF document text
    • http://vakifavu.onlinewebshop.net/diet_keto_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/bedus.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/how_long_to_lose_weight_on_warrior_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/60834155344.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_off0000e856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE856 5424 bytes
SHA-256: 5fc22f89ed1900c533156072b4c876be5ec626844013309a804eda0578892186
font_01_sfnt_off0000fad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD1 9924 bytes
SHA-256: d0b9b24ba99fe4778471032fa206bf339856b75b2f4741816872f8b1ef02ca4a

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