Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb14b966743d2f2…

MALICIOUS

PDF

75.1 KB Created: 2021-05-02 19:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a3a2845338a4869127f7bd1fe70a9622 SHA-1: 9015e0115aaac1b5e44d5552da7fbbe035213740 SHA-256: 1bb14b966743d2f2de520db977d1ecba10d4fde8dbb492ac7422ac6c070469ee
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 0.9998

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://botokaw.ru/strik?utm_term=top+hundred+chart+songs PDF link annotation
    • http://helplnstagram-confirm.com/briggs_and_stratton_675_series_pressure_washer_oil_changepx9er.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/darulibudalan.pdfIn PDF document text
    • http://albl.ru/american_ways_of_lifez5ac1.pdfIn PDF document text
    • http://eslivdrug.space/kozinatapopanejabatu4tw8u.pdfIn PDF document text
    • http://nelodagavezes.mygamesonline.org/79606515746.pdfIn PDF document text
    • http://nipijapogila.sportsontheweb.net/ags_beers_criteria_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://luregaw.onlinewebshop.net/adb_commands_list_for_android.pdfIn PDF document text
    • http://zexeborora.rf.gd/biodiversity_activity.pdfIn PDF document text
    • http://vumovofun.onlinewebshop.net/18762270914.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/silver_eyes_fnaf_characters.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/97791627926.pdfIn PDF document text
    • http://tediguku.atwebpages.com/questions_and_answers_job_interview.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/android_tv_raspberry_pi_3_image.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/klm_delayed_baggage_report.pdfIn PDF document text
    • http://visevagopar.onlinewebshop.net/ejemplo_de_una_acta_constitutiva_de_una_empresa.pdfIn PDF document text
    • http://gikasabedadex.rf.gd/17728557177.pdfIn PDF document text
    • https://s3.amazonaws.com/kubedukowug/freezer_temperature_log_sheet_celsius.pdfIn PDF document text
    • http://nomamazuzut.atwebpages.com/pelekeloma.pdfIn PDF document text
    • http://jowokepo.atwebpages.com/fukabezedisolalobupaso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACE 5088 bytes
SHA-256: 7d5d5920d3a736665e2b43e8259bc05a5edc97b0c070903bb345c52c00dac6fa
font_01_sfnt_off0000ec04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC04 10908 bytes
SHA-256: 23bb93c6291eb995138cf6f47739766467d268381743f1e477cc8d2b65ad171c
font_02_sfnt_off0001113d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1113D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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