Malicious PDF — malware analysis report

Static analysis result for SHA-256 122321eac11dafdd…

MALICIOUS

PDF

81.4 KB Created: 2021-03-24 18:14:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2e11eb1ba2ca7c0bed9d93966aecb13f SHA-1: e9048393bcf640a0491cc8bf5cf736ae4c17510d SHA-256: 122321eac11dafdd1a1e48d2af864acfbede0444a6d398ca2696f32c94d98877
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a potential phishing lure for a 'kk cash free coin apk'. The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of external URIs and the overall context suggest an attempt to trick the user into downloading a malicious payload, likely through a phishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/123?utm_term=kk+cash+free+coin+apk PDF link annotation
    • http://websecurer.tech/41904889134inuvl.pdfIn PDF document text
    • http://axecheat6.xyz/xakuvubepozuwitvt0qb.pdfIn PDF document text
    • http://mists.space/6645368962am9hb.pdfIn PDF document text
    • http://mazanatur.space/76352096136fnr1p.pdfIn PDF document text
    • https://cdn.sqhk.co/mumesimasozo/fgigfq3/vocopro_uhf-_5800_4-_microphone_wireless_system.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/e9ajg5i/72405422543.pdfIn PDF document text
    • http://boost-store.net/before_the_throne_of_god_above_shane_and_shane98f6h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/legapatatezisa/27154808223.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/sewusadejokuz.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/classical_dance_of_india.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/wusumezero.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/vidazodupoge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f57d9b2-df0b-4855-83e9-8dae837ec4e2/lenovo_thinkpad_t420_wifi_drivers_for_windows_7_32_bit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d467d6-4936-4352-aa0a-b4c5fc654cff/presto_dehydrator_trays_06300.pdfIn PDF document text
    • http://gakinodimojulat.rf.gd/curso_guitarra_flamenca.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/antenna_theory_analysis_and_design_book.pdfIn PDF document text
    • http://diduzivil.epizy.com/zederek.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/how_to_get_rid_of_pimple_scars_on_face_overnight.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B2 4812 bytes
SHA-256: a0cf01c575e2fcdcee7365b2cb5a1d9cbdb66d424993c696103015dc92591f98
font_01_sfnt_off0000e2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EB 10760 bytes
SHA-256: 80924e464fb248bcfc8837a033b5118edceb9b04fbfee84071fc5ebb6d5209e2
font_02_sfnt_off00010818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10818 19828 bytes
SHA-256: 2715dc6e6a4f506c6434e55712a6dd591954f1e8b82c9bf1d6fa14227fd0c6c2
font_03_sfnt_off00012883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12883 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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