Malicious PDF — malware analysis report

Static analysis result for SHA-256 f675a5d4c1a2f08d…

MALICIOUS

PDF

77.3 KB Created: 2021-04-11 01:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5e1e322c27abfb32f3692e517c91a2aa SHA-1: 85e4ec37dce05b182baa1f2c6de9bbae32eb1296 SHA-256: f675a5d4c1a2f08d8c7405a9ff71f0ccf4f832b794b6db5b87e2122d6d94448d
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=1040+form+2016+schedule+b PDF link annotation
    • http://reawont.online/logitech_z623_2.1_vs_z625uoc96.pdfIn PDF document text
    • http://beremoter.online/fotolejaxerufirlifa.pdfIn PDF document text
    • https://xarupome.weebly.com/uploads/1/3/4/4/134469096/9943887.pdfIn PDF document text
    • http://rubeatyshop.xyz/trauma_de_torax_penetranted68p7.pdfIn PDF document text
    • http://sinanomi.22web.org/fofotolanubonabeguwo.pdfIn PDF document text
    • http://particulieres-societegenerale.best/45090386092xj94g.pdfIn PDF document text
    • http://zabavnyi-slon.ru/is_simplicity_a_good_zero_turn_mower_for_3_acrest3p0d.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/bbc_6_minute_english_video_free1vbgi.pdfIn PDF document text
    • http://sunny-web.ru/can_you_try_planet_fitness_for_freemkr3j.pdfIn PDF document text
    • https://jileninaniwepuz.weebly.com/uploads/1/3/4/7/134771173/44df2aae620.pdfIn PDF document text
    • https://vefesipawadupo.weebly.com/uploads/1/3/4/7/134746991/kapobiwetunobo-zomanuxub-velupafut-vujagiz.pdfIn PDF document text
    • http://securityverifiedservices.com/blood_coagulation_pathwayd815t.pdfIn PDF document text
    • http://frontglass.xyz/14131339315es2n7.pdfIn PDF document text
    • http://drnextact.xyz/how_to_use_canon_mp21dx_calculatortttsn.pdfIn PDF document text
    • http://circleshtang.xyz/supopitaxaki98obk.pdfIn PDF document text
    • http://creditinquiry.info/zizifl5rz8.pdfIn PDF document text
    • http://air-calm2.club/centimetros_a_metros2i5az.pdfIn PDF document text
    • http://braco.ru/fe_review_manual_-_lindeburg_2010imutr.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/zifozujiwi/90861362298.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/takolafipifag.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/math_compartment_paper_2019_date_sheet.pdfIn PDF document text
    • http://xitirinajeki.epizy.com/24547754807.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/namazowi.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/sowupolulitowed.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_off0000f03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03D 5664 bytes
SHA-256: adc13e6fb3b408c10a3df23d4c05ec14d503ecee149ed092588bb2c691046aef
font_01_sfnt_off00010360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10360 10700 bytes
SHA-256: 8a6a1d6fd600412619f0e89e6260957dd99e877b722ab8d5b65da3e38235b264

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