Malicious PDF — malware analysis report

Static analysis result for SHA-256 cea7352225d356b6…

MALICIOUS

PDF

71.9 KB Created: 2021-02-05 08:28:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7e256e97bf33920259c606e6b04ac8be SHA-1: 55d0e0e055818e8f59a2ab7b5ab361a9bb4e06a9 SHA-256: cea7352225d356b6863e90491def26da3fa89d17f31eb3ad3788929780261c62
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://jottigo.ru/aws?utm_term=how+to+treat+inventory+in+balance+sheet PDF link annotation
    • http://ostanni.fun/ark_valguero_explorer_map5kt68.pdfIn PDF document text
    • https://bevowodawalejap.weebly.com/uploads/1/3/4/3/134363876/lusozawoniluf-pepekimir-tageva.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462056/normal_5ff71b85884b3.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/pizupifogagatimonijukamunejy0f.pdfIn PDF document text
    • https://pazijovipa.weebly.com/uploads/1/3/4/3/134327002/2323819.pdfIn PDF document text
    • https://zemapefim.weebly.com/uploads/1/3/4/4/134485651/saxofurugep.pdfIn PDF document text
    • http://okrasote.info/kalezaxipegom04452.pdfIn PDF document text
    • http://3bki.ru/zewiwimodifejamujiburio87c0.pdfIn PDF document text
    • https://sulefufevonabu.weebly.com/uploads/1/3/4/3/134363738/7986510.pdfIn PDF document text
    • https://varalege.weebly.com/uploads/1/3/0/7/130738576/3689692.pdfIn PDF document text
    • http://sberbank.services/7581329911ipsm8.pdfIn PDF document text
    • https://xorizugabe.weebly.com/uploads/1/3/1/3/131398100/zisuzitabajeweb_vigisurejibu_jabepumivedu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wetetepipemo.rf.gd/77940483506.pdfIn PDF document text
    • http://fepirag.epizy.com/77650582821.pdfIn PDF document text
    • http://beninoduvewer.epizy.com/inverse_and_exponential_functions_answer_key_mvp.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_off0000da84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA84 5244 bytes
SHA-256: aeb3b5aed036ae33902ff3419576038e8b526c6b738e1d1596eb38fa19000a6e
font_01_sfnt_off0000ec6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6B 11168 bytes
SHA-256: f6234a5ab91ddc292efe9e5b23f790533ebae8a794f5b61cdf8eb87120f1696a