Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4bba062c522c430…

MALICIOUS

PDF

86.3 KB Created: 2021-05-21 17:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 0b8431684d322ab44623b73deb1409bf SHA-1: d5c54db0940eeb081e08edbee4b7d45731153065 SHA-256: b4bba062c522c430b12406505d15fd8d2894b0aa108f2b486f3083f76b664a55
226 Risk Score

Malware Insights

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

This PDF document functions as a lure, presenting itself as a download for 'Gta v psp download rar'. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a password-protected archive lure heuristic indicates the document is likely intended to trick users into downloading an archive that requires a password, which is often provided separately or within the document itself to bypass gateway scanning. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/strik?utm_term=gta+v+psp+download+rar PDF link annotation
    • https://lemagijazifar.weebly.com/uploads/1/3/2/7/132710763/polobulidanaz-zebugipibu-jawoninev.pdfIn PDF document text
    • https://gikapizuwixa.weebly.com/uploads/1/3/4/0/134097763/3cf3ec8.pdfIn PDF document text
    • https://metogixum.weebly.com/uploads/1/3/0/7/130775033/2a3164b3050.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_6010dd7e014e2.pdfIn PDF document text
    • https://jagewimaw.weebly.com/uploads/1/3/4/0/134012974/menixajamex_sipaxufe_nipedadifudoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378404/normal_602c523659514.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488809/normal_60625e0e4889d.pdfIn PDF document text
    • https://megojame.weebly.com/uploads/1/3/5/9/135992505/80cf6f9e159.pdfIn PDF document text
    • https://tusutaxuwipafu.weebly.com/uploads/1/3/4/4/134403355/1340cbf4278e7.pdfIn PDF document text
    • https://jakugogafezokev.weebly.com/uploads/1/3/1/4/131437362/2040386.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450415/normal_60341b419ab65.pdfIn PDF document text
    • https://dirivabekere.weebly.com/uploads/1/3/3/9/133999762/valeniwimu-ziromubad-xudaregovo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449627/normal_606040b652d38.pdfIn PDF document text
    • https://pilidikuvitas.weebly.com/uploads/1/3/4/7/134766888/wiposojekavoxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375890/normal_604130992aa36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473971/normal_6046705e897ef.pdfIn PDF document text
    • https://xagofutaruv.weebly.com/uploads/1/3/4/3/134344009/zagodamedoragi_zabobudofi_zedig.pdfIn PDF document text
    • https://juzefujuninolu.weebly.com/uploads/1/3/1/4/131438825/zedodiwemax_mukegawado_tanezubaferi_fotenaromapeji.pdfIn PDF document text
    • https://getawotenag.weebly.com/uploads/1/3/4/4/134443600/6326998.pdfIn PDF document text
    • https://lifexusubanipi.weebly.com/uploads/1/3/4/3/134377686/0b5203d935.pdfIn PDF document text
    • https://jaroxifapo.weebly.com/uploads/1/3/1/6/131636664/3040b2f2151.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/suximawo/mawox.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/79024174086.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AE 5136 bytes
SHA-256: 41ef478e11ebe1dc61e99869b563a7706d8b5946b772c0fdd022f4a6138d4ac1
font_01_sfnt_off00010349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10349 2108 bytes
SHA-256: 1d739be46a300e0470098b03cb3525ce218fda25c712b9663aaff7a7ecef4354
font_02_sfnt_off00010d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D17 10468 bytes
SHA-256: 8ee44aeae9d8235c8741e88f03015d16c427f113af05344dfcc0be077ca3c10f
font_03_sfnt_off0001312f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1312F 17112 bytes
SHA-256: 8d931078a8bda077e62b6226989e9ca7a204b5b2ded984cec863dfc844f848f3

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