Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9de48b40a9c12c9…

MALICIOUS

PDF

83.1 KB Created: 2021-05-17 03:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 5efbb7ea5c56d4df376cc5e303f1989f SHA-1: e7047f4ebe70c3f3335a40fdf13ddac927c5b84e SHA-256: e9de48b40a9c12c9ad8ebc19cdcee794074e4ba15d65d627869e04d135d8bd15
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The sample was identified as malicious by ML classifiers and ClamAV, specifically flagged as a credential phishing lure impersonating Outlook. It contains multiple external URIs, including a redirector at `https://jevefelenop.weebly.com/uploads/1/3/0/7/130775498/pasujemeji.pdf`, which likely serves as the landing page for the phishing attempt. The PDF also functions as a link farm, distributing traffic across numerous disposable domains, suggesting an attempt to evade detection and distribute the phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://jevefelenop.weebly.com/uploads/1/3/0/7/130775498/pasujemeji.pdf.
  • 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://nipisod.ru/strik?utm_term=can+i+schedule+a+dmv+appointment+online PDF link annotation
    • http://kasiwewevono.iblogger.org/7489778399.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368504/normal_60117042ae6a0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476756/normal_5ff9eadf68646.pdfIn PDF document text
    • https://jevefelenop.weebly.com/uploads/1/3/0/7/130775498/pasujemeji.pdfIn PDF document text
    • http://erogan-columbia.site/what_are_the_3_intermolecular_forcespi9x7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481053/normal_603922567b0cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414501/normal_6010ac3a6beee.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • https://nisaxiguxizi.weebly.com/uploads/1/3/5/3/135306566/jinebinipoza-dibukujol-tuvuzuwemotuxo-nafawomuzatiru.pdfIn PDF document text
    • http://givupuxorow.iblogger.org/tizip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371553/normal_5fd64d6e5acc9.pdfIn PDF document text
    • http://rijinalazutegav.22web.org/bixby_vision_apk_nougat.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/1842440.pdfIn PDF document text
    • http://tisimewifexumi.iblogger.org/44399900149.pdfIn PDF document text
    • https://golinogejus.weebly.com/uploads/1/3/1/6/131606227/39c6e55f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nojimaduxonariz.rf.gd/nukexekaremete.pdfIn PDF document text
    • http://finesukarab.rf.gd/aramco_operational_calendar_2020.pdfIn PDF document text
    • http://xesijapapun.rf.gd/lapixisil.pdfIn PDF document text
    • http://paxubar.rf.gd/82455189626.pdfIn PDF document text
    • http://xonekumoti.rf.gd/small_single_bed_sheets_uk.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001077e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1077E 5184 bytes
SHA-256: e965133955a7ece02cf97a4db277b5a3b947f2b5a3c6ba214462d1e7e79e6e89
font_01_sfnt_off000118ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118FF 11364 bytes
SHA-256: 6c393d1424f5e9b405510a2510d9ea751b8fe3dac6edb5b8b35f1c7dd7a4a8d7

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