Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb3d863d2799d98d…

MALICIOUS

PDF

76.1 KB Created: 2021-03-10 15:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97eeabc542a42dd35b45a674f85ad9cc SHA-1: 1c2da071c0358e24c20a3581618e32c69648cc97 SHA-256: fb3d863d2799d98d7d3d2aec751f4eff5907d16064e93e5e4066921fa04437f9
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or phishing pages. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, aligning with phishing and malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=current+notice+period+ne+demek
    • http://nukicew.xyz/allah_99_name_app_downloadk61i4.pdf
    • http://ita-fitness.fun/business_english_for_beginners_worksheetsx9fef.pdf
    • https://jibabarudemafe.weebly.com/uploads/1/3/4/7/134748102/e52c09106.pdf
    • https://jematujevuzonip.weebly.com/uploads/1/3/4/2/134235480/sawiwugipefak.pdf
    • http://covidcapsule.world/burrow_and_bee_cot_sheetsptt7k.pdf
    • http://bazodifufibi.22web.org/30650318040.pdf
    • https://cdn-cms.f-static.net/uploads/4390371/normal_60477de749ab4.pdf
    • https://vizifota.weebly.com/uploads/1/3/0/9/130969876/womarifudama_rixovavoxagox.pdf
    • http://ogranicbio.fun/arc_warden_guide_dota_1hl2ig.pdf
    • https://gabexilo.weebly.com/uploads/1/3/4/1/134109250/881199.pdf
    • https://static.s123-cdn-static.com/uploads/4494888/normal_5fee63b96ce80.pdf
    • https://rinuvigilositu.weebly.com/uploads/1/3/4/4/134463450/df50b8b97579.pdf
    • https://cdn-cms.f-static.net/uploads/4497075/normal_601063b54806d.pdf
    • https://juluvolalo.weebly.com/uploads/1/3/4/4/134435755/bozopiri.pdf
    • http://bilkaita.space/fizajifijegakofoijzuq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pesokijodaroxo.epizy.com/actaris_sl7000.pdf
    • http://polabufu.myartsonline.com/what_is_an_engineering_drawing.pdf
    • http://mukanebesiva.atwebpages.com/bapiliroxo.pdf
    • http://bamasivira.rf.gd/feforowovusupenemalo.pdf
    • http://jesebikalag.epizy.com/calzada_definicion.pdf
    • http://jebowozuguvufot.rf.gd/soromiwosidarezuludezolot.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7d3.bin
92510a01472a5970fe4a7e333d9df8be53798ce84724c09f2afc9875389531ba
pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D3 4768 bytes
font_01_sfnt_off0000f7f1.bin
e1e1050bd6acd7639521a0367e6848a5a88bbc9e1e9cb3bed8b308a386e40a27
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F1 13824 bytes