Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee0144d15d536b1…

MALICIOUS

PDF

73.0 KB Created: 2021-04-06 17:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5b34039b9d9e9dca2c2379afe4935236 SHA-1: 701ba234b02430ebcbaab2a0a6b342d7069bed4b SHA-256: 2ee0144d15d536b1e8738001204abe58370c879b686c5675eeb59f7c458e963f
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://seumenha.ru/wix?keyword=bowflex+xtreme+2+manual+assembly PDF link annotation
    • https://cdn.sqhk.co/sikereri/PArjhxL/tukakewafutoreka.pdfIn PDF document text
    • http://xobokalute.iblogger.org/letter_headed_paper_template.pdfIn PDF document text
    • http://com-signto5.xyz/pipemomuxotetubigedotnzele.pdfIn PDF document text
    • https://cdn.sqhk.co/fesakesovoka/jd2PBXL/85318805261.pdfIn PDF document text
    • https://cdn.sqhk.co/gelowidabik/jbggifb/rock_band_or_guitar_hero_ps4.pdfIn PDF document text
    • http://wevoselaxoto.66ghz.com/55131375952.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/foIiagi/putuj.pdfIn PDF document text
    • http://wezugeviliwibu.iblogger.org/emoji_meanings_chart_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/rekewuneboxu/ejg8nja/67887995919.pdfIn PDF document text
    • http://lbaranaydin.com/39815712469jewa8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wuxupewu/xuxef.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/are_quartz_infrared_heaters_any_good.pdfIn PDF document text
    • http://webifojut.epizy.com/43219239810.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/purple_rose_images_free.pdfIn PDF document text
    • http://fovuvuk.rf.gd/wise_african_proverbs.pdfIn PDF document text
    • http://gasapiloxa.rf.gd/lijowedodufu.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/80013488083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1376e1e6-f465-431d-9e34-1882127d0a06/hp_elitebook_8570p_i7_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d125172-b23e-4427-a4ce-337d7052f4a8/20020616828.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c78f9e2c-9d01-4719-b19b-c9a1333e6cfe/zijesepewaxuti.pdfIn PDF document text
    • http://rukawinasi.rf.gd/woxojekosivemora.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03A 5328 bytes
SHA-256: f15da562ef0491bd66e8918bd0b9bfe321bfdb46681d3d980f700dad6dfe83b6
font_01_sfnt_off0000e25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25A 10820 bytes
SHA-256: 418f858ba069d71343d4fb88d664938198a764eae5ed78a423fe14008745324c
font_02_sfnt_off00010729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10729 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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