Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ccc643076cdf1b…

MALICIOUS

PDF

77.6 KB Created: 2021-09-24 10:36:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 386cbe35a8ee3227f805d19afb9b24ed SHA-1: 2b61ecee74fdc2fe01da6bb99be58f3d4ea6d65a SHA-256: 07ccc643076cdf1b8eee98bb55274c592ebce84e5c6f2914cbc6779450471f31
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document contains numerous links to potentially disposable hosting sites, suggesting a phishing or malware distribution scheme. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 http://smelawservice.com/file_media/file_image/file/33407327550.pdf In PDF document text
    • https://gedayapi.com/userfiles/file/xowutiwixep.pdfIn PDF document text
    • http://philipsphotographystudio.com/pofipepolinitokoxedupuvu.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/73250189069.pdfIn PDF document text
    • https://minlinart.com/archive/upload/files/90673643149.pdfIn PDF document text
    • https://dacinsara.ro/fckfiles/file/72073760355.pdfIn PDF document text
    • http://gshosnab.ru/userfiles/file/gekomitawapidixawafolaga.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613964e7b3a8b---fudanerowene.pdfIn PDF document text
    • http://astprom.ru/sites/default/files/file/jisazajumu.pdfIn PDF document text
    • https://bisnismedsos.com/userfiles/file/dadodagevapedolipileba.pdfIn PDF document text
    • http://sakaryakasaplarodasi.org/userfiles/file/mezotef.pdfIn PDF document text
    • http://tongshengchem.com/ckfinder/userfiles/files/bozaxaxowubod.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/xuwugimamajimagunu.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/87203817200.pdfIn PDF document text
    • https://bonekarusa.com/contents/files/68888772918.pdfIn PDF document text
    • http://autoskola-weiss.cz/userfiles/46570973962.pdfIn PDF document text
    • http://studiolorenzino.eu/userfiles/files/katuwatobidekozutugivajum.pdfIn PDF document text
    • https://oreopay57.com/ckfinder/userfiles/files/lizafabizij.pdfIn PDF document text
    • https://gencerenerji.com/resimler/files/kirekexewezel.pdfIn PDF document text
    • https://thebookonpersonaltransformation.com/FCKeditor/file/62497392166.pdfIn PDF document text
    • https://dom4m.lv/userfiles/files/rowevomibogorijenegude.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/56829157743.pdfIn PDF document text
    • http://santamariamikado.com/uploads/files/pinizekidozavu.pdfIn PDF document text
    • http://dalboncostruzioni.it/userfiles/files/37047167344.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/78238944369.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=dark+mode+in+android+9PDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4C5 20180 bytes
SHA-256: 9349453820c4e17f4571ca70adf5c471d6d5fe4babd2cbc51827a1d8bfd1404c
font_01_sfnt_off0000f90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11121 10356 bytes
SHA-256: bd6f83ce4d226f5f5ebf3ca51d250765217b19f5f98e82142f18a4b6d70c38c5

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