Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe877144040e3273…

MALICIOUS

PDF

83.4 KB Created: 2021-04-08 20:32:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f9b1b8d33fa8dc85fae681aa0ba4ac03 SHA-1: 2ee60aed7d424049c9ea3993b74e767845dca7bf SHA-256: fe877144040e327318665387b821eaae4e0f947d02feb1dafaf1327d643c52c9
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 embedded URLs, one of which, https://botokaw.ru/strik, is presented as a link within the document body, disguised as a parts manual. The presence of multiple unknown URLs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/strik?utm_term=mtd+lawn+mower+parts+manual PDF link annotation
    • http://lorenbayi.com/active_directory_federation_services_error_10647hvae.pdfIn PDF document text
    • http://zhigina.ru/456318214986zfsb.pdfIn PDF document text
    • http://thiswaytovogue.com/pexukuvewetajipoloterimofo70gt.pdfIn PDF document text
    • http://cocobeautybar.ca/3167180124474r6r.pdfIn PDF document text
    • http://peteferix.mypressonline.com/meaning_of_the_grinch_who_stole_christmas.pdfIn PDF document text
    • http://christinaanddavid2019.com/717684643460n6h8.pdfIn PDF document text
    • https://cdn.sqhk.co/weruvewo/gLOgjte/5141499226.pdfIn PDF document text
    • https://cdn.sqhk.co/perekowemo/idhj3gg/38798430407.pdfIn PDF document text
    • http://leledup.mypressonline.com/zufetaruvibezogajujitile.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/PqLhhWW/zivaf.pdfIn PDF document text
    • https://cdn.sqhk.co/fusureviweki/ge6xrji/vogusajovevobatudari.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_fc600d0062294033a6b343e463fadf22.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lewuli/condor_battle_dress_uniform_bdu_belt.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/9561609355.pdfIn PDF document text
    • https://d572dbd6-ec42-402e-884a-3db6daac2318.filesusr.com/ugd/6a558d_10934a6788e9489baa917dc16b0096f9.pdf?index=trueIn PDF document text
    • https://45f0f727-c607-4398-b3b7-8b42e23b21b2.filesusr.com/ugd/0a84ca_8f447c331a57415fbd302aa6adcf563d.pdf?index=trueIn PDF document text
    • http://judiserod.onlinewebshop.net/exercise_9_review_sheet_the_axial_skeleton.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/9805258145.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/answers_to_daily_jumble_solver.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/como_pasar_de_pulgadas_cuadradas_a_centimetros_cuadrados.pdfIn PDF document text
    • https://692937ca-140d-46b9-9715-018e108c1018.filesusr.com/ugd/2540a5_b81193b3eeba46e58c39ab7efe87ec8c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/netgear_gs108e_switch_8_port.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/types_of_structures_grade_7.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f44a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44A 5204 bytes
SHA-256: f5a938c6b7db32583923644645ee0704bfbe76d5ebff8beff9a1c36d0068cf75
font_01_sfnt_off000105fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105FB 10732 bytes
SHA-256: 974440a5e77320893bef310312c95ed6057f78964672e9c913209f21fa0510fe
font_02_sfnt_off00012ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AC7 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449

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