Malicious PDF — malware analysis report

Static analysis result for SHA-256 733abe702e1f6850…

MALICIOUS

PDF

67.8 KB Created: 2021-03-15 21:37:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 79550383598def4bb2e25c633d49cda0 SHA-1: 2f7f4baefad13e578ef06003c630dcffad92708a SHA-256: 733abe702e1f6850703a7811316f2e2f1142324529f7e5d603f24ad4ed51aad7
136 Risk Score

Malware Insights

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

This PDF document contains an embedded URI pointing to a suspicious domain, and the ClamAV detection indicates it is a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Craftsman garage door remote control programming'. The presence of external URIs and the ML classifier's high confidence score strongly suggest this file is designed to redirect users to malicious content, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://nipisod.ru/strik?utm_term=craftsman+garage+door+remote+control+programming PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491436/normal_603de5c45e6bc.pdfIn PDF document text
    • https://cdn.sqhk.co/zezovajav/6x1uLif/31425188493.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494868/normal_5ff430096448a.pdfIn PDF document text
    • http://sandwichhq.club/fudejafeguwejtjuw.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/Ojgjfgf/monkey_mania_penrith_penrith_nsw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421354/normal_5fe5c5399f08a.pdfIn PDF document text
    • https://bojowavezuzabi.weebly.com/uploads/1/3/1/3/131382797/gagakibudomawox-siluzunopeke.pdfIn PDF document text
    • http://goldenframecollision.com/samomibitujtguqu.pdfIn PDF document text
    • http://vir-tus.com/tulozimimuxinalimodiboj44caf.pdfIn PDF document text
    • https://zapirugitoz.weebly.com/uploads/1/3/4/5/134508168/bda519.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452595/normal_5fd07f21c77fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_603b671d170c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476274/normal_5ff86fbc1f24e.pdfIn PDF document text
    • http://hellesypakk.online/231367094284xqvh.pdfIn PDF document text
    • https://kanumipiga.weebly.com/uploads/1/3/5/3/135346224/7a82b093186a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375093/normal_5ff9741e063e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476418/normal_5fd2c298dc7e5.pdfIn PDF document text
    • http://s7hmus.org/dubemukodet2p7j.pdfIn PDF document text
    • http://tesocoin.online/what_cheeses_go_well_with_red_wine2l9zf.pdfIn PDF document text
    • https://wimugedi.weebly.com/uploads/1/3/4/7/134725841/jukofenopabak.pdfIn PDF document text
    • http://scarcebook.com/dumb_ways_jr_zany_s_hospital_aptoided080m.pdfIn PDF document text
    • https://rafomuvufeja.weebly.com/uploads/1/3/1/8/131856077/vebevakate.pdfIn PDF document text
    • http://reduslim-shop.website/proof_of_eulers_formula_using_taylor_series6d0pj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cc94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC94 5380 bytes
SHA-256: 01f3d3509723d615b57b2bdea64ee482c0443153590a86430bf94b94610d7f06
font_01_sfnt_off0000decc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECC 10076 bytes
SHA-256: c48c88578425f8042a9afd33e33e6403f147ddd70b1e996dd769d38423f1f8d2