Malicious PDF — malware analysis report

Static analysis result for SHA-256 8796c024eed480f6…

MALICIOUS

PDF

89.8 KB Created: 2021-03-17 17:32:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b4d1c4d70d9061d74c672eefc42c767 SHA-1: 136165507be098151aa2d42450d68e185e506bab SHA-256: 8796c024eed480f61d9113cbecbf12981260ee2b77b9c142f7a7881e0204ab01
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains a large number of external links, many pointing to other PDFs, suggesting a link farm or phishing operation. The primary URL, https://botokaw.ru/wix?keyword=rotmg+priest+guide, is likely used to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/wix?keyword=rotmg+priest+guide
    • https://cdn-cms.f-static.net/uploads/4393359/normal_601424772d22c.pdf
    • https://static.s123-cdn-static.com/uploads/4406775/normal_5fcf60ce2b9ae.pdf
    • https://zezuwosizu.weebly.com/uploads/1/3/4/4/134459619/6db98eeeec77.pdf
    • https://cdn-cms.f-static.net/uploads/4426073/normal_6026d1433996d.pdf
    • https://bilujadaju.weebly.com/uploads/1/3/4/7/134772480/32019.pdf
    • http://wizimesataw.22web.org/irenaean_theodicy.pdf
    • http://lutokororale.iblogger.org/97450873980.pdf
    • http://sazaleve.22web.org/battery_saver_free_for_android_phone.pdf
    • https://cdn-cms.f-static.net/uploads/4500665/normal_5fd62c417f101.pdf
    • http://jegewuzewan.iblogger.org/avengers_endgame_trailer_2_3gp.pdf
    • http://godevibusaxinoj.22web.org/audacity_download_for_windows_xp_64_bit.pdf
    • https://cdn-cms.f-static.net/uploads/4448992/normal_5fd7a3400786c.pdf
    • https://cdn-cms.f-static.net/uploads/4475194/normal_6037e1b5b3f2c.pdf
    • https://cdn-cms.f-static.net/uploads/4479441/normal_603ba3fac5196.pdf
    • http://pifumufupes.iblogger.org/fuse_voltage_drop_chart.pdf
    • https://cdn-cms.f-static.net/uploads/4477163/normal_603c746495852.pdf
    • https://cdn-cms.f-static.net/uploads/4404524/normal_604823d1367ed.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xaxisavubuwowa.epizy.com/maharashtra_apartment_ownership_act_1970_in_marathi.pdf
    • http://mizevukenokimol.epizy.com/what_is_the_plot_of_love_in_the_time_of_cholera.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116b6.bin
1dd005c2a320ce2f0d268355e30a29dee6b441e356d36f74c6df8493857e8530		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116B6 4820 bytes
font_01_sfnt_off0001272d.bin
f958be5b3d0fd973045dfcab56c2daa6f399ff2e5464b4ca28438aa571b83991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1272D 10744 bytes
font_02_sfnt_off00014be3.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14BE3 4324 bytes

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