Malicious PDF — malware analysis report

Static analysis result for SHA-256 9300704747f7232f…

MALICIOUS

PDF

76.3 KB Created: 2021-05-16 00:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43ad42df0591580446ce2384b1bee4a7 SHA-1: 50bf2572d4ac9ff60976f0fc20ef4952cd3d77a2 SHA-256: 9300704747f7232f9ff5243540881b61b12fef46abfad517922371d48ea46970
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/strik?utm_term=kanger+evod+twist+battery+1000mah
    • http://bufibinokurun.scienceontheweb.net/49709217718.pdf
    • https://cdn.sqhk.co/zapiferufefu/BTij2jd/xugiwizemuba.pdf
    • https://static.s123-cdn-static.com/uploads/4403537/normal_60032d824c1c6.pdf
    • https://cdn.sqhk.co/rebiguta/hgigjfm/16600702095.pdf
    • https://cdn.sqhk.co/suxupijisajo/bieXKT9/dragon_castle_toy_imaginext.pdf
    • http://bamefidev.mygamesonline.org/nonuneza.pdf
    • http://wusozupu.mypressonline.com/gas_shielded_metal_arc_welding.pdf
    • http://sugameloxufe.mywebcommunity.org/major_concepts_of_comfort_theory.pdf
    • http://memisada.mygamesonline.org/45579083187.pdf
    • https://cdn.sqhk.co/pamezuravuno/AgehghQ/27523875917.pdf
    • https://cdn.sqhk.co/perolurowona/ZUFFgfm/zogazegejebemif.pdf
    • https://cdn-cms.f-static.net/uploads/4485569/normal_6061a16676a5d.pdf
    • https://static.s123-cdn-static.com/uploads/4480735/normal_5fed35fbbb955.pdf
    • http://benivosefemiza.medianewsonline.com/zujajigabotekajakudonuri.pdf
    • http://fupemagis.mywebcommunity.org/class_10_biology_chapter_3_notes.pdf
    • http://farozemirig.scienceontheweb.net/94626218750.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mipagolawalixa.onlinewebshop.net/lexical_approach_lewis.pdf
    • https://uploads.strikinglycdn.com/files/698fc1ed-498e-45ac-b8cb-f692bc137bba/73754187612.pdf
    • http://jitawidavez.atwebpages.com/bhagavad_gita_in_english_by_swami_vivekananda_download.pdf
    • https://uploads.strikinglycdn.com/files/0674c15d-daf6-40af-af86-8e744d678175/tecknet_keyboard_game_button.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_off0000ebf4.bin
2356355d539d4b3fe8a42b3b51150870761fecb3e4df540a3d8206b82141f426
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF4 5764 bytes
font_01_sfnt_off0000ff92.bin
df3dc738b0a4d5428079391788c781c2bf200df3ce999a79ec28cf92f75d1d90
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF92 10700 bytes