Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a9348079965cb28…

MALICIOUS

PDF

172.2 KB Created: 2021-03-20 14:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4178e7fbd8b982a48c4367c31cd02e59 SHA-1: 5c02982fc8e712a64e2da94363208892d71b43dd SHA-256: 7a9348079965cb2860ca31c4442a04e322f8f884b1c416986f148a7d909d66df
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a malicious payload or phishing content. The document body, though heavily obfuscated, suggests a lure related to 'Azur lane equipment tier list 2020', aiming to trick users into visiting the linked URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://jumiwimov.ru/wix?keyword=azur+lane+equipment+tier+list+2020
    • https://vidatizotasajad.weebly.com/uploads/1/3/4/0/134017381/4394536.pdf
    • http://rmk4sale.xyz/48014932597w6c7r.pdf
    • https://bijoxopibomer.weebly.com/uploads/1/3/4/3/134325560/mevela.pdf
    • http://toppiksnack.xyz/how_to_connect_soundbar_to_subwoofer_jbl6ejwo.pdf
    • https://jipewufonafu.weebly.com/uploads/1/3/4/7/134709519/2606bccf0f87.pdf
    • https://womevelem.weebly.com/uploads/1/3/2/8/132814223/jufanewomupaded-ridanenobo.pdf
    • http://bbbbbbbbeeee.space/wumusazatinubovawiteh6cmk.pdf
    • http://wrinklestiltskin.com/skylanders_imaginators_portal_not_workingp6fdl.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/dukajevo/83711702301.pdf
    • http://berifukozek.rf.gd/65563473876.pdf
    • https://1a899ca6-11bf-4464-971e-4bf0b885e765.filesusr.com/ugd/4ac3ff_3f50b19e3799439f8ee1d29d5b585a2e.pdf?index=true
    • http://revobisamapekuz.epizy.com/70198150989.pdf
    • https://s3.amazonaws.com/zexozavo/toxezito.pdf
    • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_4268fc6e6ae64cc1bc81f898c407731e.pdf?index=true
    • https://f238abdf-92e3-4651-90df-65b6e8a648d9.filesusr.com/ugd/99965f_75638e7fd8d243e4b4d3c0a9f62bbc31.pdf?index=true
    • https://f3dc8d0a-397f-4303-99a5-a7927e83d850.filesusr.com/ugd/e916cf_710e723dc4c44d69be78040707f7e95e.pdf?index=true
    • https://s3.amazonaws.com/wurivuve/chloroform_test_for_halogens.pdf
    • https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_bbb33f84c02f4f31af0f7f2733fb4807.pdf?index=true
    • https://s3.amazonaws.com/kovozenamofox/piruvajigefedalitig.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00022c05.bin
0ce89474464cbf356c48180e68edf6199cfe1a78d44e61e245fc447a84521027		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22C05 7640 bytes
font_01_sfnt_off000245db.bin
e7659258c5e8b2c5cb1d726f5ccdd4bed4af751e0795ac6e33e6dac616d2c799		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245DB 5176 bytes
font_02_sfnt_off0002575c.bin
2f577f05203e3646e5abc245731ce82f14bea22315a27ffe6a1e915faf63ff14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2575C 11668 bytes
font_03_sfnt_off00027f44.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F44 16092 bytes
font_04_sfnt_off0002940c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2940C 4324 bytes

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