Malicious PDF — malware analysis report

Static analysis result for SHA-256 c285dc03c410cf38…

MALICIOUS

PDF

153.0 KB Created: 2021-03-13 17:41:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7f97583189c064df08854e15f9c29cd6 SHA-1: 5c3a360b430ea101e0054b5153b778c142e7e52e SHA-256: c285dc03c410cf380b461b8a4b4b836f84059b9cce959abf0eb19cce136621e0
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dugedepap.ru/wix?keyword=grim+dawn+shattered+realm+checkpoints PDF link annotation
    • https://sevenunoxesu.weebly.com/uploads/1/3/4/3/134341304/zizujiwulipavik.pdfIn PDF document text
    • http://lestyprin.online/bash_script_input_variable_from_filetyvji.pdfIn PDF document text
    • https://tewetakejuduz.weebly.com/uploads/1/3/2/7/132740850/lageliko-bunuli-tojeket.pdfIn PDF document text
    • https://mafukizagodixep.weebly.com/uploads/1/3/4/5/134525221/femowo_sisalabugev_kowit_jewagafo.pdfIn PDF document text
    • https://toxujubew.weebly.com/uploads/1/3/1/4/131437446/jobufegirirawa.pdfIn PDF document text
    • https://dixapixukezawe.weebly.com/uploads/1/3/5/3/135388261/sakuk_labajawirivid_nivomagerosided_fepajijokataxi.pdfIn PDF document text
    • https://sofofiwolasaxu.weebly.com/uploads/1/3/1/8/131856039/gesapifilo.pdfIn PDF document text
    • https://dasirexifavud.weebly.com/uploads/1/3/5/3/135320576/wutazikibuvovepu.pdfIn PDF document text
    • https://vizazoxo.weebly.com/uploads/1/3/4/6/134600102/9575928.pdfIn PDF document text
    • https://puwirobazavuwo.weebly.com/uploads/1/3/1/4/131453501/457037.pdfIn PDF document text
    • https://fekunifiso.weebly.com/uploads/1/3/4/2/134266639/gevum.pdfIn PDF document text
    • http://datingdate.site/where_can_i_see_christmas_lights_in_houston_for_freemjw3v.pdfIn PDF document text
    • http://legionmone.xyz/divinity_original_sin_2_official_guide9lt7r.pdfIn PDF document text
    • https://ragikigoludu.weebly.com/uploads/1/3/4/8/134849848/8341956.pdfIn PDF document text
    • http://baffer-shop.space/bom_radar_brisbane_64f0swy.pdfIn PDF document text
    • https://tirusagoxavux.weebly.com/uploads/1/3/5/3/135329940/9706794.pdfIn PDF document text
    • https://pudasebedizut.weebly.com/uploads/1/3/4/5/134587980/591cd7b098e.pdfIn PDF document text
    • https://dujomujur.weebly.com/uploads/1/3/4/8/134883281/dajinalolinon.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/labitajaxatufib/vadinujixeravosofob.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/gadigibiro.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/medicare_abn_form_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/holy_quran_download_with_urdu_translation.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/annamayya_songs_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/answered_prayer_in_tagalog.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00021c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C56 5500 bytes
SHA-256: de2e383e73221df64aed362adba6d5c8afb0d33f4a01e8f40d315b47f9e9cffa
font_01_sfnt_off00022ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22EF2 11888 bytes
SHA-256: 7788521c7dcf1d95e1828dbf6840b3375f3d89a197c6b1671d6422af74fa743d

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