Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e82f702aea0c739…

MALICIOUS

PDF

76.3 KB Created: 2021-03-06 10:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: e5864ddbdce39da9bbe9d217ffcc089d SHA-1: c1b7d6cee02ee67f822b78a3a63fb4f2204fdabe SHA-256: 1e82f702aea0c739b02a2faf504770bb83a01b3447082acc8bda5e9506b48d18
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam campaign. The embedded URLs likely lead to malicious content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wix?keyword=lesson+2+relations+between+the+national+and+state+governments PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387421/normal_600f927ba6095.pdfIn PDF document text
    • https://fanedidunosav.weebly.com/uploads/1/3/5/3/135345804/9309362.pdfIn PDF document text
    • https://zugatesek.weebly.com/uploads/1/3/6/0/136082504/keronagedovamogokibe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493266/normal_5ff0dd7ec7004.pdfIn PDF document text
    • https://finazevad.weebly.com/uploads/1/3/0/7/130739247/jidowurizifewet_gojim_jofamiw_zifaso.pdfIn PDF document text
    • http://tifunadepepix.22web.org/the_summer_is_over_song.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/h5k1Syr/35849247122.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/AI7hdqt/zupunofagebozikofevorok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412899/normal_5fd3382b0f976.pdfIn PDF document text
    • https://jurivulanikep.weebly.com/uploads/1/3/4/5/134525456/tijelagamodikitumek.pdfIn PDF document text
    • http://kogegoleteneka.iblogger.org/double_gate_fold_brochure_templates.pdfIn PDF document text
    • https://natesikapepik.weebly.com/uploads/1/3/4/7/134750077/zetobidat.pdfIn PDF document text
    • https://cdn.sqhk.co/ditutafewaw/hkhaMxW/offline_video_games_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499300/normal_601af35d3a089.pdfIn PDF document text
    • https://cdn.sqhk.co/maxegugej/ib0geja/xilumo.pdfIn PDF document text
    • https://dadikokaw.weebly.com/uploads/1/3/5/3/135347495/kuzemoxab.pdfIn PDF document text
    • https://wefigofotagovir.weebly.com/uploads/1/3/4/8/134864379/53a9bd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/donake/xelotizajutemoxanu.pdfIn PDF document text
    • http://dotejujuzobok.rf.gd/98887974181.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/10059852506.pdfIn PDF document text
    • http://xusijaxux.rf.gd/mituxoxezajiwutinim.pdfIn PDF document text
    • http://kusofiwu.epizy.com/benaam_badshah_hd_video_songs.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_off0000ed64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED64 5604 bytes
SHA-256: 20ded7dedd2dae78ccfce9a12d6003bf6a03c341e24f32689842aeafe81d421d
font_01_sfnt_off00010060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10060 10264 bytes
SHA-256: 44757e474141067e79a64c1531f5919663e4ac1f388477323add081aa789ab58

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