Analysis
- max time kernel
148s - max time network
141s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/09/2026, 17:17
General
- Target 2026-09-01_00a8b5d2201a8c3eb84b317072543779_cobalt-strike_cryptbot_icedid_luca-stealer_njrat_stealc.exe
- Size 547KB
- Sample260903-vt18bssbrf
- SHA256 866cc8960835e9f1f64e2ae5a2e38e30773d5cfd92f00f45fe5a2ebc2b52af18
Malware Config
Extracted
-
44caliber
-
https://discord.com/api/webhooks/1543594399315923078/t2H4s_NR671X7q5IpfwUAveGXJHfWmK0lPKuZFuh7azPjNBA0u8ifzqBuOrUfJD4ujRr
Signatures
- Family: 44Caliber
An open source infostealer written in C#.
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 2 IoCs
- Detects executables Discord URL observed in first stage droppers 2 IoCs
- Detects executables referencing Discord tokens regular expressions 2 IoCs
- Detects executables referencing credit card regular expressions 2 IoCs
- Detects executables referencing many VPN software clients. Observed in infosteslers 2 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, crypt 2 IoCs
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-01_00a8b5d2201a8c3eb84b317072543779_cobalt-strike_cryptbot_icedid_luca-stealer_njrat_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-01_00a8b5d2201a8c3eb84b317072543779_cobalt-strike_cryptbot_icedid_luca-stealer_njrat_stealc.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ink game.exe"C:\Users\Admin\AppData\Local\Temp\ink game.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ink game.exe
memory/1016-9-0x00000233E7EC0000-0x00000233E7F12000-memory.dmp
memory/1016-10-0x00007FFE66FBF000-0x00007FFE66FC0000-memory.dmp
memory/1016-11-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp
memory/1016-13-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp
memory/1016-12-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp
memory/1016-14-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp
memory/1016-15-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp
memory/1016-16-0x00000233EA5F0000-0x00000233EA71F000-memory.dmp
memory/1016-17-0x00007FFE66E30000-0x00007FFE677D4000-memory.dmp