Analysis
- max time kernel
150s - max time network
158s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
22/10/2026, 17:14
General
- Target 2026-10-21_9207be7b0f36a11fcc9a2f9158cd4cf2_akira_rusty-stealer.exe
- Size 100.0MB
- Sample261022-vrz79aag99
- SHA256 a0d717b66f0e6e36ce2544586785e490e2573f03ebffe14befeb616a652ad398
Malware Config
Signatures
- Custom signatureDetects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 6 IoCs
- Downloads MZ/PE file 8 IoCs
- Modifies RDP port number used by Windows 1 TTPs
- Executes dropped EXE 7 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Enumerates video capture drivers 2 TTPs 1 IoCs
Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 5 IoCs
Inno Setup installer
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-10-21_9207be7b0f36a11fcc9a2f9158cd4cf2_akira_rusty-stealer.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-21_9207be7b0f36a11fcc9a2f9158cd4cf2_akira_rusty-stealer.exe"1⤵
- Downloads MZ/PE file
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe"C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-RMWRQLTUJ3.tmp\471da88874be3767.tmp"C:\Users\Admin\AppData\Local\Temp\is-RMWRQLTUJ3.tmp\471da88874be3767.tmp" /SL5="$600AC,1503497,842240,C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe"C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe" /PASSWORD=5c6aly5lSHQCEunG5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-C7KVK6W7IH.tmp\471da88874be3767.tmp"C:\Users\Admin\AppData\Local\Temp\is-C7KVK6W7IH.tmp\471da88874be3767.tmp" /SL5="$700AC,1503497,842240,C:\Users\Admin\AppData\Local\Temp\471da88874be3767.exe" /PASSWORD=5c6aly5lSHQCEunG6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9a1f1f39946ef895255d0fcf63543017.cfg\bridge.exe"C:\Users\Admin\AppData\Local\Temp\9a1f1f39946ef895255d0fcf63543017.cfg\bridge.exe" -Embedding7⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\ProgramData\DeviceMetadata\effb0e026b9d1f58\ZillberReleyHost.exeC:\ProgramData\DeviceMetadata\effb0e026b9d1f58\ZillberReleyHost.exe /c1⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
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C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe "C:\ProgramData\DeviceMetadata\8e1587ad96fa1a03\launch.hta"1⤵
- Suspicious use of WriteProcessMemory
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C:\ProgramData\DeviceMetadata\8e1587ad96fa1a03\st.exe"C:\ProgramData\DeviceMetadata\8e1587ad96fa1a03\st.exe"2⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
0
AFILTER
BACKUP_ADDR.LIST
GROUP
INSTALL_TIME
index.dat
REMARK
launch.hta
B76BE66D46C355931939D8CF818D03FD_39DF7432E6EF50CDA9C936E29E7DA30D
B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
B76BE66D46C355931939D8CF818D03FD_879AFEB08DCB012707582D902977FF92
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
B76BE66D46C355931939D8CF818D03FD_39DF7432E6EF50CDA9C936E29E7DA30D
B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
B76BE66D46C355931939D8CF818D03FD_879AFEB08DCB012707582D902977FF92
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
471da88874be3767.exe
bridge.exe
Rpcrt4_dll_952_1792689289817043200.dll
advapi32_dll_952_1792689289817043200.dll
471da88874be3767.tmp
kernel32_dll_952_1792689289808351200.dll
ntdll_dll_952_1792689289815302300.dll
scr_initsetup.log
sdc_952_1792689291782789500.tmp
sdc_952_1792689292050688600.tmp
sdc_952_1792689292691622200.tmp
sdc
memory/724-1730-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/724-1755-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/724-1736-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/724-1735-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/724-1734-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/724-1728-0x0000000002C70000-0x0000000002CE9000-memory.dmp
memory/952-1684-0x00007FF843090000-0x00007FF843157000-memory.dmp
memory/952-1685-0x00007FF842400000-0x00007FF842516000-memory.dmp
memory/952-1692-0x00007FF842EC0000-0x00007FF842F72000-memory.dmp
memory/952-1700-0x00007FF843DE0000-0x00007FF844043000-memory.dmp
memory/1812-13-0x0000000001B50000-0x0000000001B51000-memory.dmp
memory/1812-22-0x0000000000BB0000-0x0000000000FE7000-memory.dmp
memory/3196-74-0x0000000000470000-0x00000000008A7000-memory.dmp
memory/4484-20-0x00000000000D0000-0x00000000001AC000-memory.dmp
memory/4484-162-0x00000000000D0000-0x00000000001AC000-memory.dmp
memory/4948-24-0x00000000000D0000-0x00000000001AC000-memory.dmp
memory/4948-3-0x00000000000D0000-0x00000000001AC000-memory.dmp
memory/5240-40-0x00007FF842400000-0x00007FF842516000-memory.dmp
memory/5240-58-0x00007FF843DE0000-0x00007FF844043000-memory.dmp
memory/5240-48-0x00007FF842EC0000-0x00007FF842F72000-memory.dmp
memory/5240-52-0x00007FF843090000-0x00007FF843157000-memory.dmp