Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ecfdb86ee85285…

MALICIOUS

PDF

68.3 KB Created: 2021-02-07 18:59:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 33b72775e8b76ecf75404446e6a4d4e5 SHA-1: 9d823cf60768f053d20d74eba7322277bfc1d9de SHA-256: e1ecfdb86ee8528574dac641a2d8f5d5ae63d5196e6a91b4a3e733fc23dca6e0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wb?keyword=parrot%20bebop%202%20fpv%20user%20manual PDF link annotation
    • https://bimefitovaj.weebly.com/uploads/1/3/1/4/131437299/6090037.pdfIn PDF document text
    • https://dobuxodujunov.weebly.com/uploads/1/3/2/7/132741154/a3a99d4.pdfIn PDF document text
    • https://totovipuvo.weebly.com/uploads/1/3/2/7/132740708/puwobu-newoxajunukil-wexem-xikenelu.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/police_oral_board_interview_secrets2fvrn.pdfIn PDF document text
    • http://republvinb.fun/game_genie_ps3_white_knight_chronicles_2_codeshxo0b.pdfIn PDF document text
    • https://fabegobidik.weebly.com/uploads/1/3/1/4/131437275/ba23f6262b15672.pdfIn PDF document text
    • http://test123test.xyz/octet_stream_file_to89i2p.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/bazimipimenu.pdfIn PDF document text
    • http://andyhongdigital.com/due_diligence_checklist_templatejn2pb.pdfIn PDF document text
    • http://cheapkeys.site/fofopuxefumugosakaxnwuyp.pdfIn PDF document text
    • https://bivapere.weebly.com/uploads/1/3/4/6/134689139/zusoxivetikix.pdfIn PDF document text
    • https://zolowokixo.weebly.com/uploads/1/3/0/7/130738875/bisig.pdfIn PDF document text
    • http://gatorama.fun/mijepajezirp88wz.pdfIn PDF document text
    • http://4escam-bot.online/luxury_islamic_broadcast_package_freeh6ys7.pdfIn PDF document text
    • https://tiwebusimevadeb.weebly.com/uploads/1/3/5/3/135346158/0bc9c1ae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cf44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF44 5380 bytes
SHA-256: 64bea7e47161e94e5f802b9318fe88c8b0bb7693b739a4ffb48cf542f24326f6
font_01_sfnt_off0000e181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE181 10276 bytes
SHA-256: 254510360b5a57d7010fe5eebd07b30d3960745294849929dac6bcb4d21a7f25