Malicious PDF — malware analysis report

Static analysis result for SHA-256 de11ae0a2d72ca46…

MALICIOUS

PDF

68.6 KB Created: 2021-02-15 16:30:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0f783b3fe782648cbdc38ecb3ad0f93a SHA-1: b9c463ef78de5fb3d69a63e66e51573677da4c4f SHA-256: de11ae0a2d72ca46568c8710967199b711c6ab5ea8dd93d1b1a031cc340a70dc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://jottigo.ru/wix?keyword=apk+editor+pro+1.8.28 PDF link annotation
    • https://fogisitulen.weebly.com/uploads/1/3/0/7/130775537/1210643.pdfIn PDF document text
    • https://cdn.sqhk.co/kixeworu/edP0ugd/dipusubijaginu.pdfIn PDF document text
    • https://cdn.sqhk.co/fejisedetu/jrhdVq9/41195247293.pdfIn PDF document text
    • http://moneymaya.site/chicken_curry_hd_images_freee8j4k.pdfIn PDF document text
    • https://zuseluxutiv.weebly.com/uploads/1/3/4/6/134686448/vakij.pdfIn PDF document text
    • http://lumapon.iblogger.org/report_phishing_email_apple_support.pdfIn PDF document text
    • https://cdn.sqhk.co/tinodifozeza/9f3iiQM/centipede_grass_seed_head_identification.pdfIn PDF document text
    • http://frontglass.xyz/42392867463sju39.pdfIn PDF document text
    • http://reduslim-buy.site/guides_canada_logobfybo.pdfIn PDF document text
    • http://goldenframecollision.com/wood_bread_slicer_guide0mef4.pdfIn PDF document text
    • http://triple-doska4.club/pirirohqwuc.pdfIn PDF document text
    • https://dosijusesuxola.weebly.com/uploads/1/3/4/3/134305349/kubaw.pdfIn PDF document text
    • https://gitapizi.weebly.com/uploads/1/3/2/6/132683136/kibesut.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/woxewiwupir/10600135246.pdfIn PDF document text
    • http://mowumaja.epizy.com/bunco_score_sheets_fall.pdfIn PDF document text
    • http://jirizaxewusi.epizy.com/86673558136.pdfIn PDF document text
    • http://vorokam.rf.gd/85149855933.pdfIn PDF document text
    • https://s3.amazonaws.com/natewared/80314466090.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_off0000bb79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB79 4996 bytes
SHA-256: 6bb382b11f16e76968726a93d4a5379745e45edbecc5645fe9b299d1061178fd
font_01_sfnt_off0000cc99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC99 9956 bytes
SHA-256: fc9a86a880d13372d2d7164fc792b17f9f051614e9f6d617c11a894141a12160
font_02_sfnt_off0000eedb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDB 16448 bytes
SHA-256: bc6d684f813ac1c32be8bd0fe15b7813cdddcd900b6f98dcbbe4bb93017ec79b