Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f036843c261e24f…

MALICIOUS

PDF

67.8 KB Created: 2021-02-13 19:53:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a155a2e34c481a36402d87d61da8ac9c SHA-1: 566dc5a2dd2ba85351c63e0ed7205c23db23cbe9 SHA-256: 5f036843c261e24f8ad09215f1bcb65358f232c8f4b9c1b7aea5ff6fe460c7f4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/wix?keyword=tempur+pedic+ergo+extend+remote+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403414/normal_5ff3ebdae9d8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416495/normal_600b04614c800.pdfIn PDF document text
    • https://kexexetipo.weebly.com/uploads/1/3/4/8/134897314/xonodisenototag.pdfIn PDF document text
    • http://lodorobirat.22web.org/71707295368.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/0d617fa47633bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484370/normal_5fd053cc65a81.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/ifjcgj2/dabuvufalaso.pdfIn PDF document text
    • https://cdn.sqhk.co/xororasomig/Dieljg5/pisuzexipowesil.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/jicKngj/wbtv_live_election_results.pdfIn PDF document text
    • https://nukanepinax.weebly.com/uploads/1/3/1/4/131454046/netidorizidekox.pdfIn PDF document text
    • https://puvugemamoj.weebly.com/uploads/1/3/0/9/130969199/jijimatepafixa_wefugalosavitov_kixipefasibipi_xowuju.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/ib8ZZn6/pepasife.pdfIn PDF document text
    • http://ruwegekugite.22web.org/kolubokororapojozubadire.pdfIn PDF document text
    • https://nusisudarebo.weebly.com/uploads/1/3/4/3/134349377/mekirewelezu_pavokuf_jolupafaw_sagobefinabebaw.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/TWaoqjc/54054074662.pdfIn PDF document text
    • http://kubikox.iblogger.org/apple_watch_help_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/vefomatakin/gghhigS/84602138421.pdfIn PDF document text
    • https://didunomupipopad.weebly.com/uploads/1/3/1/4/131438203/5323070.pdfIn PDF document text
    • https://panelaxefejavej.weebly.com/uploads/1/3/5/3/135306159/7762803.pdfIn PDF document text
    • https://fazulozuxili.weebly.com/uploads/1/3/4/6/134625369/givapaxa-sajikaneniv-levexukifala.pdfIn PDF document text
    • https://cdn.sqhk.co/zevukodixu/hhiKhbU/54014627114.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497688/normal_5fdba697e535a.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_off0000cbad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBAD 5232 bytes
SHA-256: 866260b3976d76982f68f3c188ba0c094b4f42751c8f1da2d73ba8b31ac41606
font_01_sfnt_off0000dd63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD63 9964 bytes
SHA-256: 767e5b8823a00cbe1aeb4c43bcedc8296d6b438d41cd2378d7793cf177ae2366

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