Malicious PDF — malware analysis report

Static analysis result for SHA-256 50be6d6873405997…

MALICIOUS

PDF

95.8 KB Created: 2021-03-17 09:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 678183d3430a6f527c6180ada1ec279b SHA-1: 51136bb5fc020a8d910771d0acee6bd09aa36003 SHA-256: 50be6d68734059976f5afb92337eba900918540337e5cf3f1202fed205640dad
96 Risk Score

Malware Insights

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

The file is a PDF that contains multiple embedded URLs, suggesting it is designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs points to an attempt to download further malicious payloads or redirect to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://resalured.ru/123?utm_term=50+shipping+container+home+plans+pdf
    • http://titanof-filtr.ru/zatezozabkmz6.pdf
    • https://cdn.sqhk.co/lomasamube/digFXnQ/96304926057.pdf
    • https://static.s123-cdn-static.com/uploads/4418587/normal_5fdd7704996c0.pdf
    • https://cdn-cms.f-static.net/uploads/4384035/normal_602292bdce3b8.pdf
    • https://cdn-cms.f-static.net/uploads/4485448/normal_603eb3d82b80a.pdf
    • http://bestsalestoday.xyz/pugesidido0t69.pdf
    • https://static.s123-cdn-static.com/uploads/4370097/normal_5fc75924313b5.pdf
    • https://cdn-cms.f-static.net/uploads/4416153/normal_5fdc4e060386a.pdf
    • https://cdn.sqhk.co/wofikubid/zeq5ijh/baponug.pdf
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5ff4102edc92d.pdf
    • http://musabonuluza.22web.org/25242626600.pdf
    • https://cdn-cms.f-static.net/uploads/4501514/normal_6041946568979.pdf
    • https://cdn.sqhk.co/ruduligived/ZiPE4gi/vowajadezaj.pdf
    • http://usene.xyz/their_eyes_were_watching_god_pageseysi3.pdf
    • https://cdn-cms.f-static.net/uploads/4412761/normal_602c76dfdf386.pdf
    • https://cdn.sqhk.co/jumifokujuje/dOjchfR/92036466783.pdf
    • https://cdn-cms.f-static.net/uploads/4463812/normal_603b0738b88c4.pdf
    • http://titoto.xyz/tiraneworuzupifizepajomfp14.pdf
    • https://static.s123-cdn-static.com/uploads/4461219/normal_5ff8964fb8eec.pdf
    • http://zimuzezu.22web.org/necromancer_inarius_set_dungeon_guide.pdf
    • https://static.s123-cdn-static.com/uploads/4448540/normal_5fcaa480d984a.pdf
    • https://cdn-cms.f-static.net/uploads/4476924/normal_601bcf44e3641.pdf
    • https://static.s123-cdn-static.com/uploads/4448113/normal_6001373b8a489.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://wawotor.epizy.com/platform_bed_base.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_off000128d7.bin
24de9676b12302d49e8249747439479e68f15e74b2fdacc64da638692a36cb98
pdf-font-stream PDF embedded font (sfnt) at offset 0x128D7 5528 bytes
font_01_sfnt_off00013b60.bin
4cce1e596e55bf95fadd459c08f5587f91833413d36a01ea310f29a87579fa46
pdf-font-stream PDF embedded font (sfnt) at offset 0x13B60 12128 bytes
font_02_sfnt_off00016347.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x16347 4324 bytes