MALICIOUS — 4690453_skachat__originalnuyy__obraz_.pdf

MALICIOUS — 4690453_skachat__originalnuyy__obraz_.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (75/100). 2 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: ecc76a2335a22476ccaa6fc96d21c3f7ee3ff92ba7afca67b3117438d40b8a67
• SHA-1: bea9a582aa4678c2288cb037c3d0b496e2e49a2b
• MD5: ebc062489dafe61f8fa90e29845adfd3
• ssdeep: 6144:sK58CjWXvRTC0Hv7wWtIPq8Ewem3NJe+rUrL6x+VrbRASVvzJWa:V58CyXvnv7wWtIPvEweL+ArLJPRbPWa
• TLSH: T1BD4802F0CE009A7DD9DCBA17BE38907D5D16528504F01B3A18A728E772B72BB1709636
• Submitted as: 4690453_skachat__originalnuyy__obraz_.pdf
• File type: pdf · Size: 371241 bytes
• Verdict: malicious (75/100)

Detections (2 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• 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 (4 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: http://img0.liveinternet.ru/images/attach/c/6//4690/4690383_raspisanie__avtobusov__chaykovskiy_.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D1%80%D0%B8%D0%B3%D0%B8%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7+windows+7+home+premium+x86+sp1+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8, http://img0.liveinternet.ru/images/attach/c/6//4690/4690383_raspisanie__avtobusov__chaykovskiy_.pdf, http://img0.liveinternet.ru/images/attach/c/6//4690/4690075_kartuy__evropuy__dlya_.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)

9810 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• inference.location.live.net
• 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
• 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
• 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
• 252.0.0.224.in-addr.arpa
• ntp.ubuntu.com
• 250.255.255.239.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 96f0e9993827a6a292e55fe3af7d42874c610b6c9f5bdc01fcdbe87951450ecd
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\60017521c1bcb4d6086a1f6b7f8dcf76.png - da56f7fcd4c8f3cacea3a5cc89c86553656d8bce6990551aa534e95f8ba3a407
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D1%80%D0%B8%D0%B3%D0%B8%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7+windows+7+home+premium+x86+sp1+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
• http://img0.liveinternet.ru/images/attach/c/6//4690/4690383_raspisanie__avtobusov__chaykovskiy_.pdf
• http://img0.liveinternet.ru/images/attach/c/6//4690/4690075_kartuy__evropuy__dlya_.pdf
• http://img0.liveinternet.ru/images/attach/c/6//4690/4690072_gandlyarka__i__payet_.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=1787523267&P2=404&P3=2&P4=lD0zavijw6X%2fTrCKmgnNjJ0bbY0mBUyjlkVG3MoNKo%2f0BDC3qLLrWId2cdlqbxZg6t%2fEHBdJxN3Yvps3Rscvvw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice//files/45cd9142-6feb-4946-89e7-63e58fada30a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice/files/45cd9142-6feb-4946-89e7-63e58fada30a?P1=1787523341&P2=404&P3=2&P4=GMvrhIl2iTj0Bv0qeu14UaGb7YyMgY9dCD4HAIXq%2fjmVUdAqqfZiX%2bTe1wywon%2fB%2bRrxMfhfBsAT4sV0ViMTQw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

• botcraftman.ru
• img0.liveinternet.ru

Embedded IP addresses

• 138.201.132.148
• 172.172.255.217
• 52.110.12.54
• 52.110.12.19
• 172.215.188.232
• 52.230.59.222
• 20.165.94.63
• 40.79.150.120
• 20.231.239.246
• 203.26.79.13
• 52.123.129.14
• 40.99.133.210
• 52.168.117.175
• 4.230.171.124
• 52.123.252.193
• 4.150.223.111
• 142.250.183.35

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report