Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f89652db8270afd…

MALICIOUS

PDF

72.0 KB Created: 2021-03-17 23:33:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 451b05a377721f1c7d511929e22d152b SHA-1: 49c54a4e490a0b4f80aa5bf2a2f67523f0163e24 SHA-256: 4f89652db8270afd4e1d88853a14844619ddee534c0019a04f9fe783034cc14e
94 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as potentially malicious and related to phishing. The document body, though heavily obfuscated, appears to be a lure related to downloading a specific PDF, reinforcing the phishing or malware download intent. No scripts were extracted, but the presence of an external URI strongly suggests a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7642

Heuristics 3

  • 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
  • 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://jottigo.ru/award?keyword=marriott+s+practical+electrocardiography+pdf+download
    • https://denimuka.weebly.com/uploads/1/3/4/5/134582609/9136131.pdf
    • https://morarinaxi.weebly.com/uploads/1/3/4/5/134528003/juxarixirobifol.pdf
    • http://biwedujurar.mywebcommunity.org/java_beginner_to_advanced_tutorial.pdf
    • https://bufogepuvuzi.weebly.com/uploads/1/3/1/3/131381066/baditivewowotitama.pdf
    • http://difozoxezepi.getenjoyment.net/suxigevifuw.pdf
    • http://arbitestpark.xyz/saziwq6p1g.pdf
    • https://cdn.sqhk.co/soribivevi/lhhGxhb/40770936489.pdf
    • https://cdn.sqhk.co/giwibilawa/ccsigij/13633542318.pdf
    • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/a1fe63.pdf
    • http://azules.ru/rc_christian_songs_ringtonet3eet.pdf
    • https://cdn.sqhk.co/sujoxeti/Fijjbug/block_story_wiki_dragons.pdf
    • http://ogranicbio.fun/7378228529289xbu.pdf
    • https://cdn.sqhk.co/tikugubobo/4vjcwha/regutafibasunufewewefa.pdf
    • https://cdn.sqhk.co/fikalibumi/bihgc0k/2013_chevy_spark_repair_manual.pdf
    • http://sputnews.com/the_color_of_magic_movie_downloadoylg1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c825d460-8565-4be6-b8cd-c2e3c75f1f55/wotivuvofivozuw.pdf
    • http://sogurorirerew.onlinewebshop.net/gupowusowafir.pdf
    • https://uploads.strikinglycdn.com/files/abc34424-cd63-4379-891d-f7f3208befae/17116515790.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00011697.bin
7a125b51e7b1c7e6253a288f54916da315c46a4d404db9f82490fe36c13cea07		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11697 3314 bytes
font_00_sfnt_off0000ded1.bin
3c2ceb51ac62a6a06f6e36ba103fda97e0905880578e198c482ec9ace3d40e58		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDED1 5616 bytes
font_01_sfnt_off0000f209.bin
6f46c6a9bb472ff99f40ba25b0be4719cf5504e78bbdde74acc7a9af89353d99		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF209 10776 bytes

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