Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc516bfe3a9b2f17…

MALICIOUS

PDF

73.5 KB Created: 2021-01-02 06:41:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 384ffce03995e63662f6f8ed3f7fdd61 SHA-1: 09c9381d9b52da65c78423f88225f184c8c53257 SHA-256: dc516bfe3a9b2f17e32a5eab488f02118611be4050ca66247e3a7ba770823c61
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://trafffe.ru/shook?utm_term=collect+all+the+coins+easy+game PDF link annotation
    • https://letalisukom.weebly.com/uploads/1/3/4/3/134316231/sodeda-xegubej-wosonava.pdfIn PDF document text
    • https://lenapejasuma.weebly.com/uploads/1/3/4/7/134749539/galur_gixowopovekaviv_fenabugov_pavuluxigenuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483345/normal_5fb95241e3afb.pdfIn PDF document text
    • https://wowavimisaken.weebly.com/uploads/1/3/0/8/130814021/9603627.pdfIn PDF document text
    • https://binaxapanuse.weebly.com/uploads/1/3/4/8/134882688/wegalula_wapodiji_masijavigipaka_kixup.pdfIn PDF document text
    • https://jemijibiwozigep.weebly.com/uploads/1/3/4/8/134855884/5547375.pdfIn PDF document text
    • https://sagezawi.weebly.com/uploads/1/3/4/3/134322896/dosizanit_foselijega.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/846238bf-0225-4202-bd8c-291096a534a7/dakigu.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/lasibuvesusetaru.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/tifavuwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4718eb31-1082-402f-80bd-eb7d593212a9/16507740473.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/91111998868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c4d0d0c-2b18-4648-9342-d0a2c8f19596/the_distance_between_us_read_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0fb387b-c705-4d34-8053-9fb8eeb9065c/pasetololonusepanogu.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/mobafegekodag.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_off0000e283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE283 5124 bytes
SHA-256: 8393526febf99ca95c5b045e361ea086ca604fd3c6ab4a34414786e73f76f0c1
font_01_sfnt_off0000f3cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CF 10960 bytes
SHA-256: 6f49e9aff20bcbc3e24a9ac096b47b4eaf4f3aaa3f1db259d098877ec05c9cc8