Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca313a3bc2e3029…

MALICIOUS

PDF

100.9 KB Created: 2021-03-15 11:26:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c17f17896ebf2b766d6f813d6df4665 SHA-1: 58768da93eb7edba58f1d60a4e900ef4b932b090 SHA-256: 0ca313a3bc2e3029a39a80e608c055a5b4a33c4bc4a52f36d4e71bb3328d2324
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to a game leveling guide, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://soxebez.ru/123?utm_term=bdo+warrior+leveling+guide+2019
    • http://wordsidepost.top/zemuvabunuf09ego.pdf
    • http://zesamoa.online/template_for_organizing_monthly_billsdn45s.pdf
    • http://ruszaimclub.ru/black_diamond_storm_400_headlamp_roset8nv0.pdf
    • https://cdn-cms.f-static.net/uploads/4388619/normal_60301737669e1.pdf
    • http://interior.estate/andr_rieu_performs_anthony_hopkins_s_waltzsf3jy.pdf
    • http://copyright-central-media.com/articles_of_association_notesjdx95.pdf
    • https://static.s123-cdn-static.com/uploads/4474988/normal_5fde9e2f2432d.pdf
    • https://cdn-cms.f-static.net/uploads/4451927/normal_60443a1e3c375.pdf
    • https://static.s123-cdn-static.com/uploads/4452834/normal_5fc90979553e5.pdf
    • https://static.s123-cdn-static.com/uploads/4369651/normal_5feb7664cd128.pdf
    • https://libadelalisam.weebly.com/uploads/1/3/4/5/134579317/jimaxakokuvubozavib.pdf
    • http://afracheat8.xyz/gakedizogof09iw5.pdf
    • https://nalirukixew.weebly.com/uploads/1/3/0/9/130969663/d44e0ff60b.pdf
    • http://webmastervlad.ru/jodoziviretio7b0a.pdf
    • http://sweetmeet.online/holland_lop_color_breeding_guideq2xy6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/53f877d3-b9a0-47c6-93d1-84bd8204edcb/hakko_fx-951_handle.pdf
    • https://2ddc7431-ff91-46e9-9708-195efd6cc195.filesusr.com/ugd/ffe0d3_67d0ffe6d9ba4789a2914da5c2c4c85d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/843c39ad-20f8-45d0-849c-96eac3561476/94017651185.pdf
    • https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_c70653c9f7e64998aa4a59d445f59c67.pdf?index=true
    • https://uploads.strikinglycdn.com/files/1cd016d3-4da0-4c3d-85aa-56b818a743df/2536836985.pdf
    • https://21319658-e817-4d6a-846f-872ccfe0f0c2.filesusr.com/ugd/982af2_7f6fef46cb6443f89931297f83960a30.pdf?index=true
    • https://87c8fc71-818b-4167-bf0d-2ac3bc49ffd1.filesusr.com/ugd/f9d4cd_8f8ca56b88f249f388e5fae4b11e4b35.pdf?index=true
    • https://8d90b851-447f-4cfc-ac95-1e867b71b983.filesusr.com/ugd/b371d9_157307382fd94957ac881b981c2b21ca.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012b14.bin
0cd80584ad8c0f3195c143004700cf0d4f6e639d3cfa0827898cf7901a822732		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B14 5496 bytes
font_01_sfnt_off00013df0.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DF0 1800 bytes
font_02_sfnt_off0001467e.bin
5690fd3268c054da5859df03ad3d1e8efa07e15a171787c55ade4f1fa3bb8ec2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1467E 12108 bytes
font_03_sfnt_off00016fb9.bin
9e444d06b38916bb48ae27f84023e150b603511ae8523e8c060c6ea84d282429		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16FB9 16328 bytes

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