Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d97186a3d413f26…

MALICIOUS

PDF

72.0 KB Created: 2021-03-12 05:53:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: c35cb0edfcf8728f5ecea4f232a1f533 SHA-1: 23703f5f63dc34845d2fdb3591b5618a278fa613 SHA-256: 1d97186a3d413f26ecd214c4bb17a867dc2e3a5671c62e468f683c5e87d1cc9a
126 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The PDF structure and embedded content are consistent with a lure to redirect users to malicious sites.

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://soxebez.ru/strik?utm_term=whirlpool+dishwasher+wdf320padw1+reset PDF link annotation
    • https://cdn.sqhk.co/womawuxinuge/nige8hb/reruwifubeladokoxilowavix.pdfIn PDF document text
    • https://mobofapewapo.weebly.com/uploads/1/3/5/3/135399527/kidaridudusuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415309/normal_601094739d31d.pdfIn PDF document text
    • https://cdn.sqhk.co/vifaduvej/crvja0O/android_version_free_update.pdfIn PDF document text
    • https://jasebezaf.weebly.com/uploads/1/3/4/6/134630561/8112882.pdfIn PDF document text
    • https://jolexufawiro.weebly.com/uploads/1/3/4/5/134595506/wesipur.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/a6cOgiv/citrus_alarm_clock_download_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486745/normal_5feaf12609d00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421215/normal_6023fa2fbda7a.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/2792929.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_6010f7680beea.pdfIn PDF document text
    • https://cdn.sqhk.co/vafexifere/flgcjgf/lulomoketej.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/jazamerijekufol/char_griller_akorn_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26f579e0-bb4b-4078-b184-0a625c941ed5/beats_studio_3_wireless_launch_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2793b69-3266-402f-bcc5-1a43a4e2d6e1/common_core_standards_california_language_arts_2nd_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f422d8e-413c-4972-a8ec-808e9787a878/ruger_mini_14_300_blackout_10_round_magazine.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/hisense_portable_ac_heater.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/weather_report_for_deadwood_south_dakota.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098e29d1-fa63-4064-afd4-09eb996232c0/car_air_conditioner_repair_near_me_reviews.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_off0000dac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC2 5724 bytes
SHA-256: db9ad59644cb911e0f83d2e53d3028c5867ad17928e581323148e9786436a234
font_01_sfnt_off0000ee57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE57 10700 bytes
SHA-256: 8e5e2a258d0ac58801bf98e8db8542082cd8d0bd308c087db043bd677af98de9

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