Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec2a28c659c43cc…

MALICIOUS

PDF

84.1 KB Created: 2021-03-14 05:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d04ffbdbd528c10b9b9815f2a40f38b SHA-1: ecb38ce600a5900fc8021271b6b2e5d6383b3839 SHA-256: 9ec2a28c659c43cc86da9e3cd1a2fd1de4c833f33f9b0a52e280b131d1675b28
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to game talents, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=discipline+priest+talents+classic
    • http://trynon.xyz/chicco_bravo_travel_system_indigo_reviews3uo40.pdf
    • http://shop-you.xyz/2952579077tr51n.pdf
    • http://help-lnstagram-verifycopyrgiht.com/zosivojegekan8rg9u.pdf
    • http://supsun-aero.com/166846087339j5oc.pdf
    • http://myirn.icu/72780344811mglfr.pdf
    • http://masajsalonunuz.com/971282515876qv86.pdf
    • http://leopolds.space/609554032788oe.pdf
    • http://wrestling-mma.com/sukasolgvya.pdf
    • http://coins24h.com/98424611093hrm3c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://najubizep.epizy.com/phone_icon_font_awesome_cheat_sheet.pdf
    • http://mugakot.rf.gd/79168324173.pdf
    • https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_3a92be5fbe3e4cf8b366c1c5d5596a91.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3a34db00-a35f-4a6f-9703-602ef1d81e4e/how_big_is_the_running_horned_woman.pdf
    • https://uploads.strikinglycdn.com/files/dd054cc8-591a-4d4a-8243-5b616cb56cee/dir-655_wifi_password_reset.pdf
    • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_320c2e66953e458cad9413ae82e71a7b.pdf?index=true
    • https://068ba8bc-08b0-4b68-8151-f3c59c7a5775.filesusr.com/ugd/5a4aad_b3c94ea934fb47efaccfe852a4070694.pdf?index=true
    • https://71a0d42b-91d5-4e94-9338-ff69ca8a624b.filesusr.com/ugd/e5d5e5_65092ddba26e4476bc9498f26e7c9ae1.pdf?index=true
    • https://6b52f5a6-db44-4d3e-8337-ab33c729cb13.filesusr.com/ugd/f4de5e_632d7c48b4784dd2b6c2f3e7e4cc4455.pdf?index=true
    • https://b3a8b944-ddec-4d17-9b53-5a1c05c66d8c.filesusr.com/ugd/314503_ed3a72d88c1e4cffad2e14198c5910e4.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f7acbd35-2306-4fda-9918-5229dc22cec2/sunbeam_bread_maker_recipes_book.pdf
    • http://guxasimedoki.epizy.com/67548819113.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d42.bin
809df2383fdfe469d47d3ec31241f1969d7ed1ac2006339846bb719590267258		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D42 4928 bytes
font_01_sfnt_off00011e16.bin
ff2da031b8e20b65e3fa403522002bdfd19cfe3fb393cb25307423990ae4c795		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E16 10820 bytes

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