Malicious PDF — malware analysis report

Static analysis result for SHA-256 83e88e7bdf50e1e1…

MALICIOUS

PDF

79.2 KB Created: 2021-01-13 08:20:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a86d02fceca9e2d626b3a1c199dfc7f9 SHA-1: 780c0e67a40d3e88cfbcf91792fda4d386704190 SHA-256: 83e88e7bdf50e1e1084014e51e3ac41685fdb2e4c873e1af450f21e818919a90
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, appears to be a lure related to the 'Baaghi 3 film hd'. The presence of external URIs and a link farm indicates an attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://trafftec.ru/aws?utm_term=baaghi+3+film+hd PDF link annotation
    • https://bigarafomamuwi.weebly.com/uploads/1/3/4/3/134318607/xinewopalokorav-vozuxi-bidulumobin-rosamewuxoboze.pdfIn PDF document text
    • https://gobodukigibab.weebly.com/uploads/1/3/1/8/131856162/3968429.pdfIn PDF document text
    • https://site-1185944.mozfiles.com/files/1185944/50253521116.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fc19f3251dc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408992/normal_5fafa767d04dc.pdfIn PDF document text
    • https://noberewesuxo.weebly.com/uploads/1/3/1/3/131379636/siginadamobovepig.pdfIn PDF document text
    • https://runolenasugu.weebly.com/uploads/1/3/4/7/134765044/8859326.pdfIn PDF document text
    • https://sijerixo.weebly.com/uploads/1/3/4/0/134042725/9827374.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419847/normal_5fe881f4cc92c.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/gateme/4289110054.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/91965878953.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/sample_resume_templates_for_administrative_assistant.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/prism_electric_okc.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C3 5260 bytes
SHA-256: 2ba8453b350dc63ad611c7efb590052cba7e33241260f706a81eb904eae5e589
font_01_sfnt_off0000f58c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF58C 10720 bytes
SHA-256: 1de727eed8cff4269caf8ad2baf54fbecfda9173b7821d8bcae79bf5b751d908
font_02_sfnt_off00011a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A83 16164 bytes
SHA-256: 4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349

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