Malicious PDF — malware analysis report

Static analysis result for SHA-256 91fa7d93c7ae07ab…

MALICIOUS

PDF

66.6 KB Created: 2021-02-14 22:17:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0377034afb059de35031a64ad516cc7f SHA-1: dc040102d62f8ae9268a22f542246327ad32d016 SHA-256: 91fa7d93c7ae07ab8f90cc3df435a2fcf88ac6fbab582b0c158b1df8de9d14d0
126 Risk Score

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://jacksth.ru/wix?keyword=college+point+restaurant+depot PDF link annotation
    • https://cdn.sqhk.co/kogoruzojif/chbSSA1/love_failure_songs_telugu_ringtones_download_2020.pdfIn PDF document text
    • http://avto-trokot.xyz/12898095815zasq2.pdfIn PDF document text
    • http://leafester.online/fijerolelegulugbifzb.pdfIn PDF document text
    • https://kuduxefu.weebly.com/uploads/1/3/2/6/132695679/roxowab.pdfIn PDF document text
    • https://zozolexiwu.weebly.com/uploads/1/3/4/3/134343356/491731.pdfIn PDF document text
    • https://cdn.sqhk.co/jutigurotow/geicFQR/chicken_invaders_5_full_version_download_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369311/normal_60152ed09c8ad.pdfIn PDF document text
    • https://fometixivoros.weebly.com/uploads/1/3/1/6/131637143/noxuwekatilo_zekeselixupofa_fesipojudikukij.pdfIn PDF document text
    • http://boevoenlp.com/39866071429g1gyz.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/GCbijjb/como_descargar_special_forces_group_2_para_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/sopiloroda/1uujfid/midusowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454280/normal_602778579ff9b.pdfIn PDF document text
    • https://ladupizisegi.weebly.com/uploads/1/3/1/3/131380895/4330553.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/20540030622.pdfIn PDF document text
    • http://joruvone.epizy.com/35651882138.pdfIn PDF document text
    • http://jefusebu.epizy.com/35539634772.pdfIn PDF document text
    • http://gewagopixinilu.rf.gd/xaburobebudovulur.pdfIn PDF document text
    • http://wekumut.epizy.com/aadhar_card_information_wikipedia.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b90f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB90F 5032 bytes
SHA-256: 8c0892400aef1e661125862be215064d545f46bcdcd33787e9eda6016e874f35
font_01_sfnt_off0000ca2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA2B 6068 bytes
SHA-256: 58b4873d33ac9fffaf45ed1a2312b8eb5fadf3b067e77f8cfe9e87095f6a7717
font_02_sfnt_off0000d9dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9DC 10232 bytes
SHA-256: 1a5e2176f1c5b19c441851b1ae3b9ef5c96887c2a7084db30eb438095a8bb0a2