Malicious PDF — malware analysis report

Static analysis result for SHA-256 772f2b30fd360eac…

MALICIOUS

PDF

84.7 KB Created: 2021-03-19 19:44:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe851120027ca5781e7c78347f466d55 SHA-1: 17836542d3addebec177264093d7f48030ddb90b SHA-256: 772f2b30fd360eac7cdb00ae9b208cce0bec3abf370c36d6e71a153f8079d393
96 Risk Score

Malware Insights

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

The PDF contains a lure related to a game hack, directing users to a URL that likely hosts a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The embedded URL is the primary indicator of the attack's nature, suggesting a phishing or malware distribution attempt.

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://seumenha.ru/wix?keyword=monster+legends+hack+apk+no+survey+no+activation+code
    • http://pudumalezedokav.22web.org/dungeons_and_dragons_monster_manual_5.pdf
    • http://mitimewigupito.mypressonline.com/25088198035.pdf
    • https://static.s123-cdn-static.com/uploads/4366305/normal_5fe0d7dcceb77.pdf
    • https://cdn-cms.f-static.net/uploads/4374979/normal_6039b35c924d9.pdf
    • https://static.s123-cdn-static.com/uploads/4371010/normal_5ffff2a3e9ca4.pdf
    • https://cdn-cms.f-static.net/uploads/4390381/normal_603000d4e5040.pdf
    • https://cdn.sqhk.co/merojuniv/cjbz3mi/mavalum.pdf
    • https://cdn-cms.f-static.net/uploads/4501041/normal_601b57253c7a0.pdf
    • https://cdn-cms.f-static.net/uploads/4390068/normal_60401ab805e90.pdf
    • https://cdn-cms.f-static.net/uploads/4463533/normal_6027a1fb4a0cd.pdf
    • https://cdn-cms.f-static.net/uploads/4380088/normal_5fdab76bf0b94.pdf
    • https://cdn-cms.f-static.net/uploads/4460473/normal_60120840f0b06.pdf
    • http://kitixukizogutik.mygamesonline.org/91198265967.pdf
    • http://ruluzuzadol.mypressonline.com/pavokezog.pdf
    • https://cdn.sqhk.co/kosaboze/cuiahht/zewopozaviviwu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jefevuxivux.epizy.com/maroxevokomemup.pdf
    • http://ziladujaxizi.rf.gd/jevetokenekamivi.pdf
    • https://s3.amazonaws.com/nedijowewoded/samsung_wf42h5000aw_a2_repair.pdf
    • http://mipijuzatup.rf.gd/xovulepedulu.pdf
    • https://s3.amazonaws.com/tawovojo/71231765098.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f957.bin
91a5948425daf59d3d84970eedbd3b7d538e94385d559cc2f329bd7f5b6f6c8e
pdf-font-stream PDF embedded font (sfnt) at offset 0xF957 5568 bytes
font_01_sfnt_off00010c56.bin
c4a0a6091bffb4a9149ab22e855f1e59e8ef2572e2c61c01c3e503ee78cf41f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x10C56 1932 bytes
font_02_sfnt_off0001159b.bin
049f191bf833499c5e62f0148c7f056e5b9b64c68f1363da750fd2091f050460
pdf-font-stream PDF embedded font (sfnt) at offset 0x1159B 15212 bytes