Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa5440dac5c33396…

MALICIOUS

PDF

73.2 KB Created: 2021-04-03 20:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcf367c67b910af3793704cfb5f28544 SHA-1: d8cdce0200a8fda9a186631cc4423bfaa3a44b3a SHA-256: fa5440dac5c333965768c019cb5b6257fbfb1601aa7bb36dcdddd4d5a5111850
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to download a modified game application, indicating a social engineering lure. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading and executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://botokaw.ru/wix?keyword=download+game+first+touch+soccer+2015+mod+apk
    • https://pagafamowadaf.weebly.com/uploads/1/3/4/8/134878907/pabep-mufemi-dabiwu-sujejozalexirer.pdf
    • http://rivozuzeno.mywebcommunity.org/gapesewodeverokiketali.pdf
    • https://cdn.sqhk.co/gitopedevid/ghPShga/verodegutewategiwapu.pdf
    • http://saxediburu.iblogger.org/50512109228.pdf
    • http://silekutum.medianewsonline.com/cirrose_heptica_tratamento.pdf
    • http://dadevizevarek.scienceontheweb.net/51672109872.pdf
    • https://vesixogis.weebly.com/uploads/1/3/4/8/134863987/8491159.pdf
    • https://cdn.sqhk.co/sunaxidida/hh0ogeP/ear_infection_in_adults_medicine.pdf
    • https://fetepidema.weebly.com/uploads/1/3/4/6/134684810/zopemad_bijusatanakit.pdf
    • https://cdn.sqhk.co/wavefekus/jhjgjhc/tufagov.pdf
    • https://zowamuzifam.weebly.com/uploads/1/3/1/1/131163536/3f154.pdf
    • https://cdn.sqhk.co/vazedibimi/hd6ihXN/78878327771.pdf
    • https://cdn.sqhk.co/nutewakizi/bhi6yjB/72955102364.pdf
    • http://bulakirip.getenjoyment.net/adjectif_indfini_tout.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kepewitibafef.myartsonline.com/cuentos_en_ingles_para_jovenes.pdf
    • http://tafiwepamubov.atwebpages.com/pikamolalaluvonufud.pdf
    • https://s3.amazonaws.com/sepovutapakogaf/tepabovobutofopifumilik.pdf
    • https://s3.amazonaws.com/fedufiporara/jevutekufepedowatafo.pdf
    • http://wawavaroxu.myartsonline.com/list_of_banking_abbreviations.pdf
    • http://kokasog.epizy.com/3758779614.pdf
    • https://s3.amazonaws.com/kizugokofo/93419120385.pdf
    • https://s3.amazonaws.com/rorives/minions_banana_full_song.pdf
    • http://davobob.rf.gd/d-link_dir-825_ee_ac_1200_dual_band_gigabit.pdf
    • http://xumesata.epizy.com/kagogaxejusemanu.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_off0000d778.bin
cad4165ddda87ab78b040df4ce94bc735b2c1622079c41d351a7194c9d51a489
pdf-font-stream PDF embedded font (sfnt) at offset 0xD778 6172 bytes
font_01_sfnt_off0000ec7c.bin
c10ee8a5678d29f11531744695473eebb491c0709fd02a623ae1e64e9ec2a7a9
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7C 12116 bytes