Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e1c06dc3c78a3cc…

MALICIOUS

PDF

121.1 KB Created: 2021-03-23 06:05:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 0548b5f9f7c89cd2916f1a3c3417f1d9 SHA-1: c774bbe5c5b0e95dd0cd08aed1e79ea20315e324 SHA-256: 7e1c06dc3c78a3cca8ae1fa4c2c90954133cadfe2e8c56eb5f842eb2e95e1aad
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body, though heavily obfuscated, contains text related to Stephen King's autograph value, likely a lure to direct users to external URLs. The presence of numerous external URLs, including suspicious ones like botokaw.ru, suggests an attempt to redirect users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/strik?utm_term=how+much+is+stephen+king%2527s+autograph+worth PDF link annotation
    • http://yourdesk.website/52389842200skx0k.pdfIn PDF document text
    • http://shop-onlain.fun/zuredowipakitixovwtdhp.pdfIn PDF document text
    • http://datab.vip/83940933609ud3wy.pdfIn PDF document text
    • http://study-english-02.space/rumepigivimalalavzpstz.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://uploads.strikinglycdn.com/files/bd98b914-53e9-48a0-a269-05432ad40e03/dirt_devil_power_max_vacuum_belt_size.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/jeevansathi_song_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95a65563-667b-44e7-9f14-b1025aa40c5d/how_to_identify_delta_shower_cartridge.pdfIn PDF document text
    • http://buxuzob.epizy.com/22333366117.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d1eabcc-e5be-4f92-939a-b8a1dcda9ab6/87619830191.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/nozaxitirewu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505736a4-6f74-41b0-9b92-01b5d38a4b29/69798059891.pdfIn PDF document text
    • http://xafamikipu.epizy.com/54773712647.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d050b9da-bb24-4b3c-9c07-cfffe3e22be6/dragon_age_origins_awakening_best_rogue_specializations.pdfIn PDF document text
    • http://xabasib.rf.gd/wuxugedolopinuxafome.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce12f21f-a155-48bb-bc55-ad5969e94b3f/what_is_the_importance_of_intellectual_property_law.pdfIn PDF document text
    • http://jowakumini.epizy.com/logitech_x_540_subwoofer_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/bewarikikozifanakexe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000176c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x176C2 5348 bytes
SHA-256: be561239d27859c60e9b93c8371bc692ccc4ce393369731b952535858964fd75
font_01_sfnt_off000188e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x188E4 12684 bytes
SHA-256: a409fda05b6caf4413378a70cadabc459d224517d8c9ffae35c73c76060c1868
font_02_sfnt_off0001b365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B365 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
font_03_sfnt_off0001c893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C893 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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