Malicious PDF — malware analysis report

Static analysis result for SHA-256 6235be00ca6ac32c…

MALICIOUS

PDF

80.1 KB Created: 2021-04-05 10:16:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ab5c878eaf7970bcf3154357a3a608bb SHA-1: 94e0fd5d3f96855363f8f7fe3464aba480f884eb SHA-256: 6235be00ca6ac32c66431c70b87e74d311be463a7f064710d3a353909725b068
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9991

Heuristics 5

  • 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 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://maypoin.ru/wix?keyword=dead+effect+2+apk+award PDF link annotation
    • https://cdn.sqhk.co/nefakovuwot/xid9hal/shark_attacks_off_maui_today.pdfIn PDF document text
    • http://lobafor.mypressonline.com/tatulagudijaj.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/gdgeBkv/maroon_synonym_adjective.pdfIn PDF document text
    • https://cdn.sqhk.co/limiwebu/jfgiYgd/37425557830.pdfIn PDF document text
    • http://podjem2.club/bibliographic_information_apa_example1286v.pdfIn PDF document text
    • https://cdn.sqhk.co/zudoputasafe/bhggguQ/14841271402.pdfIn PDF document text
    • http://phillipen.online/709047832769ag4h.pdfIn PDF document text
    • http://tranquils.space/bakazamek7qv0x.pdfIn PDF document text
    • https://cdn.sqhk.co/jatobeguji/whg9ggT/23467740810.pdfIn PDF document text
    • https://cdn.sqhk.co/viposaxa/ZhbGm6d/jefeje.pdfIn PDF document text
    • http://masajsalonunuz.com/93843967342xn1fi.pdfIn PDF document text
    • http://shtancircul.site/bams_beyrek_hikayesiql7i7.pdfIn PDF document text
    • http://momijorifuwuve.22web.org/55516257053.pdfIn PDF document text
    • https://cdn.sqhk.co/telapunojawu/iijejif/11558258358.pdfIn PDF document text
    • http://xumukekuvag.22web.org/little_eyes_upon_you_question_answer.pdfIn PDF document text
    • https://cdn.sqhk.co/janimivaxo/iggifia/5507630469.pdfIn PDF document text
    • http://azalea.store/34818137273ggjmr.pdfIn PDF document text
    • http://rinujajija.getenjoyment.net/16267679313.pdfIn PDF document text
    • http://lnstagramcopyrightservices.org/93069978930r4jb2.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/ufHjhp7/89458298614.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nekeromufuribel.rf.gd/how_to_hold_snare_drum_sticks.pdfIn PDF document text
    • http://vogepaxita.rf.gd/caldera_spa_parts_manual.pdfIn PDF document text
    • http://sawotopedexorod.epizy.com/bereavement_counseling.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_off0000ed65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED65 5224 bytes
SHA-256: 31bda5735b3222c39a2db62d0a7ead415f2f5f25399c642e53fa65a3a59ef07e
font_01_sfnt_off0000ff5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5B 3280 bytes
SHA-256: 1cbd5a059d31da48cd988d42bac7d6bf2ff2b4a7f93f4a03cf7258c164c301e8
font_02_sfnt_off00010b33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B33 11596 bytes
SHA-256: d950f888a31512c8804bfa8b9b5bc86f41001177d36415d2a40830fa0777a73e

Open this report in the interactive analyzer, or submit your own file for analysis.