Analysis
- max time kernel
142s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
22/04/2024, 04:11
General
- Target 52e216ccbdc8d26c1eb99cb9920a9eb6.bin.exe
- Size 47KB
- Sample240422-erxt5afc73
- SHA256 b2a46a3e8b1018ba03c2aee68e3403358887a317d7de6cd0a55bb46790e05192
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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194.26.192.196:1610
-
1fIwqGEAnqby
-
delay
3
-
install
true
-
install_file
hostvc.exe
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Detect ZGRat V1 2 IoCs
- ZGRat
ZGRat is remote access trojan written in C#.
- Async RAT payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Drops desktop.ini file(s) 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\52e216ccbdc8d26c1eb99cb9920a9eb6.bin.exe"C:\Users\Admin\AppData\Local\Temp\52e216ccbdc8d26c1eb99cb9920a9eb6.bin.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hostvc" /tr '"C:\Users\Admin\AppData\Roaming\hostvc.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "hostvc" /tr '"C:\Users\Admin\AppData\Roaming\hostvc.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2268.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\hostvc.exe"C:\Users\Admin\AppData\Roaming\hostvc.exe"3⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3808 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp2268.tmp.bat
hostvc.exe
memory/400-14-0x0000000004C60000-0x0000000004C70000-memory.dmp
memory/400-20-0x0000000006580000-0x00000000065F8000-memory.dmp
memory/400-25-0x0000000006A60000-0x0000000006AF2000-memory.dmp
memory/400-24-0x0000000006810000-0x0000000006878000-memory.dmp
memory/400-23-0x0000000004C60000-0x0000000004C70000-memory.dmp
memory/400-13-0x0000000075290000-0x0000000075A40000-memory.dmp
memory/400-22-0x0000000075290000-0x0000000075A40000-memory.dmp
memory/400-17-0x0000000005B90000-0x0000000006134000-memory.dmp
memory/400-18-0x00000000056B0000-0x0000000005716000-memory.dmp
memory/400-19-0x0000000006600000-0x0000000006676000-memory.dmp
memory/400-21-0x00000000066B0000-0x00000000066CE000-memory.dmp
memory/4064-3-0x0000000004F80000-0x000000000501C000-memory.dmp
memory/4064-0-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4064-1-0x0000000000450000-0x0000000000462000-memory.dmp
memory/4064-9-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4064-2-0x0000000004DD0000-0x0000000004DE0000-memory.dmp