Malicious PDF — malware analysis report

Static analysis result for SHA-256 60251ede3cd25bdb…

MALICIOUS

PDF

77.3 KB Created: 2021-03-30 03:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c608c57550744bca31b8dfe72e2bb7fc SHA-1: 733b5ae04609329a6def6e185074c8478215e205 SHA-256: 60251ede3cd25bdb17b9bb517bba5c209d34ba6c76f10d93aa25e5b26c837105
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, 'https://botokaw.ru/wix?keyword=fate+of+the+world+game+guide', which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to a game guide.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=fate+of+the+world+game+guide
    • https://cdn-cms.f-static.net/uploads/4371269/normal_601b48b956272.pdf
    • https://static.s123-cdn-static.com/uploads/4446770/normal_5fe0b74139241.pdf
    • https://cdn-cms.f-static.net/uploads/4472188/normal_602e569353864.pdf
    • http://tatewuf.iblogger.org/derabopetomuvorokozunu.pdf
    • https://cdn-cms.f-static.net/uploads/4418185/normal_600ff767d2823.pdf
    • https://cdn-cms.f-static.net/uploads/4404528/normal_6036520632884.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/6003f756-ea7a-4dcc-8c4b-20fac08f0414/staar_released_test_algebra_2.pdf
    • https://uploads.strikinglycdn.com/files/79884f90-32c5-4461-99ad-2b87e3658a05/minutekomobi.pdf
    • https://d3826037-6016-486c-99e9-dc41bc666644.filesusr.com/ugd/b81754_4c20a7d5182043efbe56faed74facfbc.pdf?index=true
    • http://guligovidafijew.rf.gd/sapanifexifuxalawudisem.pdf
    • http://mexesumofiruvaf.rf.gd/sizixuzujumibo.pdf
    • https://uploads.strikinglycdn.com/files/70ffb298-1320-4f04-b3a5-2eb299dbb60f/how_much_does_the_average_computer_programmer_make.pdf
    • http://wuxirakagatijir.epizy.com/2d_game_kit_manual.pdf
    • http://tenedurexijipes.epizy.com/27612118178.pdf
    • http://dinixikidimed.epizy.com/51536458231.pdf
    • https://51f47fa2-20f7-4ec4-bb91-8ae4aee689b4.filesusr.com/ugd/917232_8472ec00b6d144f49dde8cc8279b489b.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5ef.bin
be7365d1f1683007504f6f945248c21983aa67dba9a0aa96fc434b460daa44c2
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EF 4964 bytes
font_01_sfnt_off0000f6f0.bin
18f8ef2a547919a9a569a6d225a7fb99cf0b2a1d8b13ec05cf1eb1177c112422
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F0 10268 bytes
font_02_sfnt_off00011a2f.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A2F 4324 bytes