Malicious PDF — malware analysis report

Static analysis result for SHA-256 1769dd77210a53b0…

MALICIOUS

PDF

65.6 KB Created: 2021-02-26 01:26:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: baa28f99ff6637b269ed6139607fb8e2 SHA-1: 9f8e6c0f78062149407642c0db18f26cc60914de SHA-256: 1769dd77210a53b09744594ed8b0fcb21e186819b845b0bdadd830ff39d6bf69
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://leonvi.ru/wb?keyword=ve%20lxi%20expert%20fonts PDF link annotation
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/dec1d.pdfIn PDF document text
    • https://libizegenumejav.weebly.com/uploads/1/3/0/7/130775388/laxowawatig.pdfIn PDF document text
    • http://xowozumevabig.66ghz.com/arjun_patiala_movie_hd_video_song.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409248/normal_5fd2279a27f6e.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/xaxidiwenoxepi.pdfIn PDF document text
    • https://bunepefetupudir.weebly.com/uploads/1/3/2/7/132741430/lilusosuluvigidamaz.pdfIn PDF document text
    • https://napuguzexavuzes.weebly.com/uploads/1/3/4/8/134875267/julusodanovuna.pdfIn PDF document text
    • http://xavukagidasali.iblogger.org/73891537561.pdfIn PDF document text
    • https://xoduwotef.weebly.com/uploads/1/3/5/3/135328954/9620818.pdfIn PDF document text
    • http://feruwikabi.iblogger.org/48024124049.pdfIn PDF document text
    • http://firstsecu-paypal.com/modern_recording_techniques_8th_edit0l8y7.pdfIn PDF document text
    • https://rigitugatelimo.weebly.com/uploads/1/3/4/1/134131632/72fcb97a4.pdfIn PDF document text
    • https://liwavijej.weebly.com/uploads/1/3/4/3/134379327/mewurigofi.pdfIn PDF document text
    • http://paximosikelos.22web.org/14352806468.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nilikimapineti.epizy.com/samsung_top_loader_washing_machine_instruction_manual.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F4 4720 bytes
SHA-256: d05e8368719999f92a7ac210bd8631a510ad2edd81a1d7a31e4ff7973a0f02c5
font_01_sfnt_off0000d71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71A 10268 bytes
SHA-256: ecfbc8a86142a0753cfc38a7c0dd4d69a255b5e58a17711cfea2f3eb78502d0a