Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e493ad68b00ec0c…

MALICIOUS

PDF

82.1 KB Created: 2021-03-13 12:54:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: de3be095ee3205f751fa155d0607693c SHA-1: dfefc1fc490df0cfef6e52cf71500fa3b5766093 SHA-256: 1e493ad68b00ec0c23fb1466264229f0f66ba02ad34795d356087ff9f0fcba4f
166 Risk Score

Malware Insights

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

The sample is a PDF file flagged by multiple heuristics, including ML classification and ClamAV, as malicious and phishing-related. It contains embedded URLs pointing to suspicious domains, one of which is used in a link farm designed to obscure the final destination. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may contain instructions for accessing a password-protected payload, a common tactic to bypass gateway security.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/strik?utm_term=%25D0%25BE%25D1%2588%25D0%25B8%25D0%25B1%25D0%25BA%25D0%25B0+xbox+live+8015d002 PDF link annotation
    • http://pegajopakazo.22web.org/cdc_treatment_guidelines_for_syphilis.pdfIn PDF document text
    • http://rodojad.iblogger.org/como_se_llena_una_carta_poder.pdfIn PDF document text
    • http://fajamad.mypressonline.com/lets_talk_about_the_birds_and_the_bees_book.pdfIn PDF document text
    • http://pekibimige.mygamesonline.org/autumn_leaves_classical_guitar_tab.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/canon_t3i_user_manual.pdfIn PDF document text
    • http://joteruzawareba.iblogger.org/how_much_a_guitar_lessons_cost.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuperag.epizy.com/lorevosan.pdfIn PDF document text
    • https://b3079848-b07e-4d89-9244-05dfa5dd91fe.filesusr.com/ugd/3ab5ed_01a5aed48e23469686351ccc42a1d164.pdf?index=trueIn PDF document text
    • https://7ec9ed57-df89-401a-953b-45744c150cee.filesusr.com/ugd/6e3131_e7961346590d42af8225ca49001d3999.pdf?index=trueIn PDF document text
    • https://e53c8fcc-339b-4d8f-83f6-44ddc8c6ace4.filesusr.com/ugd/1ea9c4_efce518c975d4f72bab3b8dd5e590ab6.pdf?index=trueIn PDF document text
    • http://puretuwedeva.epizy.com/interesting_persuasive_speech_topics.pdfIn PDF document text
    • http://pitigapevede.onlinewebshop.net/mulexutajezevaponefafibuf.pdfIn PDF document text
    • http://xugivazule.rf.gd/bibujaruzutus.pdfIn PDF document text
    • http://marilineme.epizy.com/kunajusiragikadij.pdfIn PDF document text
    • http://witeguxatuzidaj.epizy.com/ohio_amish_country_map.pdfIn PDF document text
    • http://zarufutebere.epizy.com/the_assassins_blade_book_review.pdfIn PDF document text
    • http://mepenaxuwijun.rf.gd/2010_national_drug_strategy_household_survey_report.pdfIn PDF document text
    • http://gubodasitonobu.epizy.com/12527934589.pdfIn PDF document text
    • https://9539e3d7-93ad-434a-85ac-22bd9bdb82bb.filesusr.com/ugd/df7b34_7f0d7de44af342a0a2234c7b1bfe4e7b.pdf?index=trueIn PDF document text
    • https://c1bbde11-5cda-4f7c-8b74-b2fe90b484f5.filesusr.com/ugd/1c8c6c_cf47dc33bb52444c9382be326953aad3.pdf?index=trueIn PDF document text
    • http://surifuj.rf.gd/maine_pyar_kiya_movie_300mb.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5E 5880 bytes
SHA-256: 3b733568de4612dead36b8e9021fb2ac214080c44fea233e371c9f3c4d28cb6d
font_01_sfnt_off0001138d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1138D 11636 bytes
SHA-256: 4c7f06eab727ab8a223eb6bf100b3217026955b41cd07adbce6cdb732e66d01c

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