Malicious PDF — malware analysis report

Static analysis result for SHA-256 f550f75a36164ed9…

MALICIOUS

PDF

79.0 KB Created: 2021-03-20 06:08:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61816d10e6ff984599798230121ef04d SHA-1: 92a1c78d0727f733dae741ccb66d5b6890067c83 SHA-256: f550f75a36164ed963b0189e15d29b0f81257d3328b618eebe80538f5e75a289
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, specifically as a phishing trojan. It contains multiple embedded URLs, one of which advertises a "gardenscapes hack apk mod", suggesting a lure to download potentially malicious software. The presence of external URIs indicates the document is designed to redirect the user to external resources.

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://kuzutuzo.ru/wix?keyword=gardenscapes+hack+apk+mod
    • http://nibelv.xyz/pokemon_card_redeem_code_generatorb0ckn.pdf
    • http://jedomagisuw.getenjoyment.net/74184358232.pdf
    • https://cdn-cms.f-static.net/uploads/4367627/normal_5fd77d084314d.pdf
    • https://cdn-cms.f-static.net/uploads/4447460/normal_602d72f98f879.pdf
    • https://static.s123-cdn-static.com/uploads/4385614/normal_5fcc84fe9293b.pdf
    • http://vodizurulenega.mypressonline.com/100_weight_loss_tips.pdf
    • https://static.s123-cdn-static.com/uploads/4459320/normal_5fe44e7c1b8b4.pdf
    • http://prosale.company/xatupibakiwuzoqe3pd.pdf
    • https://static.s123-cdn-static.com/uploads/4448332/normal_5fee23fd53b33.pdf
    • https://static.s123-cdn-static.com/uploads/4445868/normal_5febb05a39c7a.pdf
    • https://static.s123-cdn-static.com/uploads/4487432/normal_5ffbc224a30e0.pdf
    • http://orbitan.fun/how_many_pages_should_a_novel_chapter_bemgc9q.pdf
    • http://jolamuvinuma.iblogger.org/the_shack_restaurant_mississippi.pdf
    • http://game-pro.xyz/59510795689sm7yu.pdf
    • https://cdn-cms.f-static.net/uploads/4490720/normal_601a108ff4187.pdf
    • http://mevesepegubisis.scienceontheweb.net/a_dolls_house_act_2_and_3_summary.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kudefem/bubererodonixawemokifefow.pdf
    • https://s3.amazonaws.com/lorifumofelu/detipadufi.pdf
    • https://s3.amazonaws.com/garorowa/devefuderojilakep.pdf
    • https://s3.amazonaws.com/zifilobesumafi/context_clues_synonyms_and_antonyms_worksheets.pdf
    • http://misugivunuzu.epizy.com/live_sports_streaming_app.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_off0000e69d.bin
91d164551f449d68fc6ce76ca176fa0b90240e6a663e409dc71edf1fcd60aff0
pdf-font-stream PDF embedded font (sfnt) at offset 0xE69D 5376 bytes
font_01_sfnt_off0000f8bf.bin
3dac7580e3a2ab3b75ceef0886f2df4730bf5992bc35f67f72ea18034194910b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BF 17048 bytes