MALICIOUS — 64a6a8c26e41bbdeb0ddd76d84b95f83797919eefa33f8b3fbaf2ec6502692c6
MALICIOUS — 64a6a8c26e41bbdeb0ddd76d84b95f83797919eefa33f8b3fbaf2ec6502692c6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the IRCbot family. 4 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
64a6a8c26e41bbdeb0ddd76d84b95f83797919eefa33f8b3fbaf2ec6502692c6 - SHA-1:
c266f744b16f1f85c56dbdc9021062744d619206 - MD5:
5b1cc4dbbb21508a1722fefc6ec98916 - imphash:
6a4f14242bf7f7aebb2d38088148c05f - ssdeep:
3072:eGC43DksD+XZVp9DV0000000000000000000000000000000000000000000000o:eGC43NaVLmrrrbrrrrr71 - TLSH:
T19D4D07BD83671E98D0DFB3795232A02F00EB8E67E824CF94812E46F1974C517429A5E7 - Submitted as: 64a6a8c26e41bbdeb0ddd76d84b95f83797919eefa33f8b3fbaf2ec6502692c6
- File type: pe · Size: 572416 bytes
- Verdict: malicious (97/100) · Family: IRCbot
Detections (4 of 55 engines)
- ClamAV (daily): Win.Trojan.Generic-9907673-0
- YARA: Stratosphere IPS: STRATO_IRC_Botnet
- Microsoft Defender: Backdoor:Win32/IRCbot
- Kaspersky (KVRT): Backdoor.Win32.IRCBot.qz
MITRE ATT&CK
Why this verdict
The malicious score of 97/100 is the fusion of 6 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Generic-9907673-0 (rule
Win.Trojan.Generic-9907673-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - Contacted 34 external host(s) at runtime (7 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: Stratosphere IPS flagged STRATO_IRC_Botnet (rule
STRATO_IRC_Botnet) - engine signal, weight 0.35, confidence 0.70 - enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
35146 behavior events · 1 ATT&CK techniques · 1 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
- 209.52.40.23.in-addr.arpa.
- 250.255.255.239.in-addr.arpa
- ecs.office.com
- desktop-hsgcbep
- login.live.com
- ctldl.windowsupdate.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- self.events.data.microsoft.com
- tas02.sls.update.microsoft.com
Dropped files
- C:\Windows\System32\RCX4811.tmp -
b177451c6f304bc6228d2e2ed2599021c7a9bffda9df8993577eef75627567ec
Embedded URLs
- 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=1787838357&P2=404&P3=2&P4=LeeSCfXd5lYyny6SGa%2bvVSkiGs87IBGYG5C15ltapOZkbS4MprmnhSEVYENxptQoet4Y3VTzlkQlqhsMgnau8A%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- irc.librenet.net
Embedded IP addresses
- 135.232.92.137
- 72.145.35.97
- 51.11.192.48
- 20.42.73.26
- 57.155.104.224
- 20.42.179.204
- 172.172.255.216
- 52.168.112.66
- 52.148.114.188
- 40.84.97.4
- 4.247.188.233
- 4.150.223.104
- 92.223.78.30
- 4.247.188.224
- 20.165.94.46
- 52.123.129.14
- 4.150.223.110
- 20.184.175.16
- 172.215.188.232
- 74.178.240.61
- 4.150.223.114
- 85.210.196.11
- 20.42.179.192
- 20.42.65.94
- 57.154.63.210
File paths
- C:\Surat
More IRCbot samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report