Malicious PDF — malware analysis report

Static analysis result for SHA-256 0732e069110dc746…

MALICIOUS

PDF

89.2 KB Created: 2020-11-20 00:57:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 0a7e3f71d4772c1acfa660d9bd468bb2 SHA-1: 4222ec24c33a97e720c7af53d697272646a704cb SHA-256: 0732e069110dc746e003db9c7fadd9aebe11ef354c3391b1d15a2bef5e3afeac
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a significant number pointing to potentially malicious or SEO-spam sites, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The primary malicious URL identified is 'https://trafffi.ru/aws?utm_term=black+and+blue+the+movie', which is likely used to host phishing content or distribute further malware. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', reinforcing its malicious nature.

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://trafffi.ru/aws?utm_term=black+and+blue+the+movie PDF link annotation
    • https://rirumuzog.weebly.com/uploads/1/3/4/1/134109041/sowolujajukoxa_gupovukitaki.pdfIn PDF document text
    • https://zafojepomekosax.weebly.com/uploads/1/3/4/3/134352399/xinodi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451221/normal_5fa4a35743193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475588/normal_5fb2b9962f7c6.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/leributafa/dinamica_de_sistemas_simulacion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73c7188d-9d3c-4797-9a3e-7c048ba9f91a/super_mario_odyssey_bonus_traveler27s_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/799f0c08-53cd-4d52-97ed-93375a9b44b1/.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72ba73c8-6141-4914-ba2d-1e871964480a/35149424889.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/juwiwikonevonusi.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/gopro_5_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94f9222a-1322-46f5-b94b-0d642a231264/62909921780.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/25256194480.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/el_niagara_en_bicicleta_letra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0addf912-5334-41b0-9086-017e9dffc087/66092284906.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/ganuzixedupifefazoxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b8edf23-8f2c-4d66-b48b-fa8fbc18364c/cvb_uscourt_gov.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000136fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x136FA 19048 bytes
SHA-256: 6bf8e83d41363e00858556720bc04ece0697eb395ee6c3b339e2c897570c1e5e
font_00_sfnt_off0000ffe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE9 5216 bytes
SHA-256: 44e3a583c4d3ffe56a78392b00072a9ff501b584a4ccc199478d87bc383e9449
font_01_sfnt_off0001118f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118F 11168 bytes
SHA-256: 700e538628badbc76f9b11aef49c8416bb1bf3b4e5735edf5e0ad164d621ebbc

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