Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d290a104676155a…

MALICIOUS

PDF

77.4 KB Created: 2021-03-06 04:24:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 1d02e64d50a3ccf4400a189c00855de2 SHA-1: 038817c0105eba899955b592ad8e6a1917589d1b SHA-256: 1d290a104676155adccc19392f995a60630eb053fabaf11cdc62c887f61c7a3e
126 Risk Score

Malware Insights

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

This PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with at least one pointing to a disposable hosting domain, characteristic of a link farm used to obscure malicious destinations. The presence of external URIs and the overall structure suggest it's designed to redirect users to potentially harmful content.

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://lozipotod.ru/123?utm_term=amana+dishwasher+made+in+usa PDF link annotation
    • http://bivozebavi.iblogger.org/majora_s_mask_fishing_guide.pdfIn PDF document text
    • http://jenuxijaf.mygamesonline.org/maytag_bravos_washer_not_spinning.pdfIn PDF document text
    • https://cdn.sqhk.co/romafime/pehjdM8/bloons_adventure_time_td_mystery_doors.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/ijggZhh/paxulifupixozalitamemupa.pdfIn PDF document text
    • https://cdn.sqhk.co/vadavenaw/hghfgeN/network_capital_funding_corporation_glassdoor.pdfIn PDF document text
    • https://cdn.sqhk.co/govazofaj/didl9jj/50298329688.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/flUqiaJ/94804351591.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455890/normal_5fea1d5608388.pdfIn PDF document text
    • http://dotekebenutedex.scienceontheweb.net/capresso_pro_coffee_brewer_and_grinder.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_6035ca81a719a.pdfIn PDF document text
    • http://manamuposa.getenjoyment.net/poulan_pro_445_pole_saw_parts.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/69495dc9-c9de-4e65-a97f-f45d8cd99c30/can_you_text_on_the_jitterbug_flip_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2135ed6f-bea1-4975-af72-66f02ae48953/moxelipusonenuzoligomim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dacaabc8-995f-4a1e-8716-861145ea4cab/slingbox_500_setup_with_directv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3099d273-0e83-44e7-bbbf-fbd0e09d5f89/76276958650.pdfIn PDF document text
    • http://sunefisubu.rf.gd/graco_snugride_35_lx_washing_instructions.pdfIn PDF document text
    • http://rotufixijisadi.onlinewebshop.net/best_international_law_schools_in_germany.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_off0000f206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF206 5112 bytes
SHA-256: b0c2e2af6832fe521135439992c1bb43e499e2eba77ef7d3654f29f90f7a15c1
font_01_sfnt_off0001034d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1034D 10928 bytes
SHA-256: 451e14431b190ad73d4302a7a3db53398bee90e7f3396b7a86677d8b5dd5f61c

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