Malicious PDF — malware analysis report

Static analysis result for SHA-256 b246c8a055af052f…

MALICIOUS

PDF

92.1 KB Created: 2021-04-15 08:36:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 5e739f9bd3f779b586a812b6f724063b SHA-1: 5179f5988e3a5f15cbc636ba30e1ee38792f1f33 SHA-256: b246c8a055af052fc01a79037f83fe487adfe9afe6a4dbf06bb256e06f3223e4
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, suggesting a phishing or malware distribution attempt. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification strongly supports maliciousness. The embedded URLs, such as https://ponafet.ru/strik?utm_term=is+mortal+engines+on+netflix, are likely used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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 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.
  • 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/strik?utm_term=is+mortal+engines+on+netflix PDF link annotation
    • https://cdn.sqhk.co/kisesawaropo/ibjh8Xa/teachers_credit_union_portland_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/dobajinorite/icjhjjG/56099404154.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/iiBjbDm/tank_stars_game_download_for_pc.pdfIn PDF document text
    • https://gejipowuxenufo.weebly.com/uploads/1/3/4/6/134681439/7902a209a942c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383565/normal_6025b59f0a3af.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/mWaJChe/wixakixomimogemivu.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/49XOXaB/asteroid_headed_toward_earth_2021.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412154/normal_5fe7d0e8c5dc7.pdfIn PDF document text
    • https://cdn.sqhk.co/dinigivo/wjdgecx/horizon_zero_dawn_walkthrough_cauldron_sigma.pdfIn PDF document text
    • https://cdn.sqhk.co/sofaxuleruri/6ZifFVL/just_dance_now_mod_apk_ios.pdfIn PDF document text
    • https://babivefe.weebly.com/uploads/1/3/5/3/135312435/9143378.pdfIn PDF document text
    • https://cdn.sqhk.co/lawikuto/EPcjdie/gesture_drawing_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/zoraxiraga/YbCjgFq/15926077684.pdfIn PDF document text
    • https://cdn.sqhk.co/gimovitax/gjrggii/barbie_dreamhouse_adventures_season_6.pdfIn PDF document text
    • https://cdn.sqhk.co/sunaxidida/Gjddnih/phone_ringtone_free_download_zedge.pdfIn PDF document text
    • https://cdn.sqhk.co/zodavujera/Vxjabib/bameledobemizefa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419846/normal_603a3f89db6a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417141/normal_604a56e295f47.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/e6Rr0z7/petroleum_engineering_degree_texas_tech.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444358/normal_6051c12d71911.pdfIn PDF document text
    • https://cdn.sqhk.co/figotabam/ggh97id/vejabeja.pdfIn PDF document text
    • https://fapopadiwa.weebly.com/uploads/1/3/1/4/131438416/8060855.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/gbnApja/smartthings_ide_colors.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/zedilegol/48444461509.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/does_blackberry_z10_support_android_apps.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/datolasesadoxoxukaxik.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_off000126b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126B1 5092 bytes
SHA-256: 763fb3e4de390562f0cf3df88f933fc6a1984efd11b4b11296c77524dcdf4827
font_01_sfnt_off000137f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137F1 12116 bytes
SHA-256: 33536ec377f476765318de3c8c5ac7578c8536f439c5c7a4ef79e3cdf527db1f

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