Malicious PDF — malware analysis report

Static analysis result for SHA-256 ada1c52953a027b2…

MALICIOUS

PDF

68.5 KB Created: 2020-11-17 00:39:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5ccb5e61801f14c1cec83c070a5770d1 SHA-1: 2e9331cbe3cc850f449474d7588d36a69b681948 SHA-256: ada1c52953a027b24e9eb452a844b23db7d450d32233d1367da78f534a635fc3
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains text that suggests a lure related to 'Zoom g5n review'. The presence of a link farm and a remote-support tool lure heuristic further indicate a malicious intent to direct users to potentially harmful content or services. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://ggtraff.ru/123?utm_term=zoom+g5n+review In PDF document text
    • https://cdn-cms.f-static.net/uploads/4415745/normal_5fa144c801612.pdfIn PDF document text
    • https://bijivabaj.weebly.com/uploads/1/3/4/6/134601785/tujafogudomaduz-tizisegag-xivezisiref-xuzajow.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/jolituzoji/methane_molecule_shape.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/sims_apk_download_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/34483970782.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/21588936613.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/13791954839.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/56787414379.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/arthur_blank_political_contributions.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/59771809215.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/15911913861.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/fibotemebifawagufaveman.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/accounts_payable_in_trial_balance.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_off0000d199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD199 4820 bytes
SHA-256: e0a1b2db86db76c3a141a0f2debcff66ab4eb7d0cfa8235326dfae430c956c7d
font_01_sfnt_off0000e205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE205 10528 bytes
SHA-256: 65937bb23989d002cca634827d338ec14029f778a4ef2589aa9dbfdaf546c425

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