Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2503e56d70588fe…

MALICIOUS

PDF

70.3 KB Created: 2021-03-06 12:11:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f956597ff8de3eb104bf2dadc885eb5a SHA-1: 89967f4676bb67b11af0da0dfce9af16b8d78201 SHA-256: d2503e56d70588fe8ebd365a047c76044262632a2dcd65ce132020d47fca17a7
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://xajibur.ru/award?keyword=why+selection+is+locked+in+my+microsoft+word+2019 PDF link annotation
    • https://cdn.sqhk.co/wugeguxu/ifOjegD/bodufudetuwu.pdfIn PDF document text
    • https://cdn.sqhk.co/diwomijo/irrThiP/dragon_ball_z_infinite_world_pc_download.pdfIn PDF document text
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/xalimubudameves.pdfIn PDF document text
    • http://vvd.bar/32866162278r4e1q.pdfIn PDF document text
    • https://jawuvufos.weebly.com/uploads/1/3/4/8/134856807/47a54905780.pdfIn PDF document text
    • https://fepaxumezo.weebly.com/uploads/1/3/4/3/134320712/dosivodove.pdfIn PDF document text
    • https://tedarotola.weebly.com/uploads/1/3/1/4/131482933/2fbc92.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/kaSheaA/mino_monsters_2_mod_apk_offline.pdfIn PDF document text
    • http://abwaab.su/wutiwusawobolatelepetsifa.pdfIn PDF document text
    • https://nivujetomut.weebly.com/uploads/1/3/4/7/134753784/d3798.pdfIn PDF document text
    • https://topazezinin.weebly.com/uploads/1/3/0/9/130969714/bolimezejup.pdfIn PDF document text
    • https://wexemexaxixu.weebly.com/uploads/1/3/4/7/134709907/tukuv-tifef-jaxofifidito-fasokawusetokim.pdfIn PDF document text
    • https://woduluzotuni.weebly.com/uploads/1/3/4/3/134373450/xiwiwifebogan_rixin.pdfIn PDF document text
    • https://raxipufed.weebly.com/uploads/1/3/4/4/134474150/3d235bd040c86f.pdfIn PDF document text
    • https://kukitarigawe.weebly.com/uploads/1/3/0/7/130776277/75798777f7b.pdfIn PDF document text
    • https://kitivagep.weebly.com/uploads/1/3/0/7/130775950/521055.pdfIn PDF document text
    • https://tererenigi.weebly.com/uploads/1/3/1/4/131405956/bidepi-xiruwuv-taralipebi.pdfIn PDF document text
    • https://jipibivit.weebly.com/uploads/1/3/4/0/134012636/foxogag-zibiz-wadabup.pdfIn PDF document text
    • http://1xbets-reg.site/564857754724crp7.pdfIn PDF document text
    • https://metojonokodoto.weebly.com/uploads/1/3/4/8/134881876/divefirupolexo.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_off0000d604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD604 5804 bytes
SHA-256: c61365b92e3a721575c8b10dd115c038dae030068fb854fa36d8a145cdf031d8
font_01_sfnt_off0000e9c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C5 9896 bytes
SHA-256: 3d754f1c9572c743bc45e3ec13e09bb41ca20a7058a938d559f4905558812e2e

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