Malicious PDF — malware analysis report

Static analysis result for SHA-256 eafb0de4203db262…

MALICIOUS

PDF

76.1 KB Created: 2021-03-17 08:16:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34d1b41ead6be6f6c95196a68c710384 SHA-1: e8ef369a43d9c353682848edea5d38d1d1040b07 SHA-256: eafb0de4203db262f51a486f006f29b4bd79fe16ba24eb0cb1d8c9ba93eabc9e
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains a large number of external links, many of which are generated for SEO purposes, indicating a link farm or phishing attempt. The 'SE_CALLBACK_LURE' heuristic suggests a phishing context, and the ML classifier strongly flags it as malicious. The primary external URI, 'https://ponafet.ru/wix?keyword=elkhart+county+warrants', is likely the intended destination for users seeking warrant information, but it is instead a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/wix?keyword=elkhart+county+warrants
    • https://cdn.sqhk.co/kejalupegem/AhbhjW8/loribekakeduxo.pdf
    • https://lumovomudin.weebly.com/uploads/1/3/4/7/134704265/sukawur-zafivano.pdf
    • https://cdn.sqhk.co/zujumatatub/gjfievf/mukunowanonudemidetojilux.pdf
    • https://zugozoriv.weebly.com/uploads/1/3/4/7/134770463/413f2507150.pdf
    • https://wiruxunuv.weebly.com/uploads/1/3/5/3/135324042/giratigipej-nezew-kaligumov-zazopa.pdf
    • https://koxabiniz.weebly.com/uploads/1/3/5/9/135994092/mofazunonev_danedab_venemuginep_fukujidir.pdf
    • https://zedimubaxujejit.weebly.com/uploads/1/3/4/7/134715534/8261262.pdf
    • https://vorevowupi.weebly.com/uploads/1/3/4/6/134633589/5749519.pdf
    • https://cdn.sqhk.co/vimewiki/QjjVgcK/94250579359.pdf
    • https://ferofetilusef.weebly.com/uploads/1/3/5/3/135346026/3512044.pdf
    • https://cdn.sqhk.co/rewazexi/kjhTqih/30550311423.pdf
    • https://sowameneritela.weebly.com/uploads/1/3/0/7/130775755/rituzojoveme_fenaz.pdf
    • https://lupudeme.weebly.com/uploads/1/3/1/3/131378919/mugof-fofub-jupedifo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://d992f69e-bc5b-430a-92d7-abfd66d0380b.filesusr.com/ugd/6f7357_0ecb727fddfe4dd3a1ad74c860585a38.pdf?index=true
    • https://s3.amazonaws.com/legobegutulo/soundcloud_go_apk_reddit.pdf
    • https://s3.amazonaws.com/norozovijalu/fafigugowo.pdf
    • https://s3.amazonaws.com/jinabom/kabiwumuxirofifegifenom.pdf
    • https://f2d828cf-06d9-46ea-85af-d88b0bc20d44.filesusr.com/ugd/501a20_2d711a9f12d44f6e8d23a9d4f86c2e39.pdf?index=true
    • https://s3.amazonaws.com/fotepopunaj/pejefofulevowij.pdf
    • https://s3.amazonaws.com/kovozenamofox/peruvajibifuribifojafewo.pdf
    • https://s3.amazonaws.com/niporofez/in_the_heart_of_the_sea_film_streaming.pdf
    • https://1237a3da-0b33-4890-9ba9-974507bf2590.filesusr.com/ugd/3e0cb9_0216ccce4fd14fe4827a5800ecfb70c2.pdf?index=true
    • https://s3.amazonaws.com/satudifin/hungry_caterpillar_birthday_invite_template.pdf
    • https://s3.amazonaws.com/midaguvimabof/speak_laurie_halse_anderson_chapter_1.pdf
    • https://s3.amazonaws.com/xozeb/57348683301.pdf
    • https://77a48bbd-706a-45f8-a225-ac1cc02029d7.filesusr.com/ugd/3be48b_8889d60c8ab243f5860f300dfdf6a623.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb21.bin
69d3d2a8f45981fd1302655ab81f21d4d54bd64f947779e618527160557a9bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB21 5100 bytes
font_01_sfnt_off0000fc8f.bin
41b57beb4385ae394aeaaebbac034ef6fe87df873b1870a61b41facd8721d571		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8F 11232 bytes

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