MALICIOUS — 4829878_neokonchennaya__pesa__dlya_.pdf

MALICIOUS — 4829878_neokonchennaya__pesa__dlya_.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (75/100). 3 of 50 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 8724710b8a791caaa2fa9f76432740e2d8f9c1e1e61b5b138e820fef90035506
• SHA-1: f4a036fc87d496bc6499c46e328e99cee57934f8
• MD5: c89aa02678b9648594164afa24f3a974
• ssdeep: 6144:IG+qwqACmAbdq+9qEb3knNWVWtctRtpnnqZD7EQiBn1BXsGbAnZZG2eKtv:J4qA74q+9/bUn2Wt27nq9inQnZzeI
• TLSH: T1164901F1DD25C9B9CA6937867D78223E5D0B5A1152E42B31384349FA73B827F13098B2
• Submitted as: 4829878_neokonchennaya__pesa__dlya_.pdf
• File type: pdf · Size: 395034 bytes
• Verdict: malicious (75/100)

Detections (3 of 50 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: flagged
• Emsisoft (Emergency Kit): PDF.Spam.Heur.13

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The malicious score of 75/100 is the fusion of 7 weighted signals:

• Contacted 17 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: http://img1.liveinternet.ru/images/attach/c/7//4829/4829857_oformlenie__portfolio__vospitatelya_.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://botcraftman.ru/?lip&keyword=%D0%BD%D0%B5%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B5%D0%BD%D0%BD%D0%B0%D1%8F+%D0%BF%D1%8C%D0%B5%D1%81%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%BF%D0%B8%D0%B0%D0%BD%D0%B8%D0%BD%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8, http://img1.liveinternet.ru/images/attach/c/7//4829/4829857_oformlenie__portfolio__vospitatelya_.pdf, http://img1.liveinternet.ru/images/attach/c/7//4829/4829820_prikaz__ob__okonchanii_.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (4 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9702 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• desktop-hsgcbep
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• desktop-hsgcbep._dosvc._tcp.local
• desktop-hsgcbep(1)._dosvc._tcp.local
• _dosvc._tcp.local
• desktop-hsgcbep(2)._dosvc._tcp.local
• desktop-hsgcbep(3)._dosvc._tcp.local

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - c7d88c5e00c5cd3c721a152061361a5c8cda4af109c6bc5534e17dec7c74f9fb
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\1cc705ad34f91ffbce89c049a90e42a5.png - 5e49d6883d5d72592a7811ba5e7aff05da12770d4b52d987f6f8c7bf9d5fe8d0
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://botcraftman.ru/?lip&keyword=%D0%BD%D0%B5%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B5%D0%BD%D0%BD%D0%B0%D1%8F+%D0%BF%D1%8C%D0%B5%D1%81%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%BF%D0%B8%D0%B0%D0%BD%D0%B8%D0%BD%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
• http://img1.liveinternet.ru/images/attach/c/7//4829/4829857_oformlenie__portfolio__vospitatelya_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4829/4829820_prikaz__ob__okonchanii_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4829/4829848_gdz__geografiya__7_.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787380882&P2=404&P3=2&P4=ntab4cGltcm16dEhUC5jtDY443s7PJcEg3eMHX7WTMHm60kofw4eKZtAxLg6uD4hrRUBTwk0TsV4nTj4bbcLCQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

• mm.io
• botcraftman.ru
• img1.liveinternet.ru

Embedded IP addresses

• 135.233.95.80
• 72.145.35.105
• 4.207.44.71
• 172.66.2.5
• 20.184.175.1
• 52.123.252.238
• 48.211.4.16
• 52.110.12.49
• 52.253.84.76
• 4.230.171.124
• 20.236.44.162
• 74.179.77.204
• 135.233.95.144
• 52.123.129.14
• 40.103.64.242
• 203.26.79.13
• 162.159.36.2

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report