Analysis
- max time kernel
161s - max time network
171s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
17/04/2024, 12:49
General
- Target f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
- Size 575KB
- Sample240417-p2bdzshc8v
- SHA256 f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Testing
-
91.207.102.163:9899
-
HbLmK5pOLkik
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 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.
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\flVdJE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\flVdJE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA3E.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"2⤵
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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=4048 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe.log
__PSScriptPolicyTest_uo5oh33j.zhb.ps1
tmpDA3E.tmp
memory/1756-28-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/1756-4-0x0000000004EC0000-0x0000000004ED0000-memory.dmp
memory/1756-5-0x0000000004F30000-0x0000000004F3A000-memory.dmp
memory/1756-6-0x0000000005210000-0x000000000522C000-memory.dmp
memory/1756-7-0x0000000005540000-0x0000000005548000-memory.dmp
memory/1756-8-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/1756-9-0x00000000068E0000-0x00000000068EC000-memory.dmp
memory/1756-10-0x0000000004920000-0x0000000004974000-memory.dmp
memory/1756-3-0x0000000004FA0000-0x0000000005032000-memory.dmp
memory/1756-12-0x0000000004EC0000-0x0000000004ED0000-memory.dmp
memory/1756-1-0x0000000000490000-0x0000000000526000-memory.dmp
memory/1756-0-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/1756-2-0x0000000005550000-0x0000000005AF4000-memory.dmp
memory/1756-11-0x000000000F710000-0x000000000F7AC000-memory.dmp
memory/2256-89-0x0000000007910000-0x0000000007921000-memory.dmp
memory/2256-37-0x0000000005DA0000-0x0000000005E06000-memory.dmp
memory/2256-20-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/2256-21-0x00000000029E0000-0x00000000029F0000-memory.dmp
memory/2256-88-0x0000000007990000-0x0000000007A26000-memory.dmp
memory/2256-93-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/2256-85-0x0000000007710000-0x000000000772A000-memory.dmp
memory/2256-57-0x00000000029E0000-0x00000000029F0000-memory.dmp
memory/2256-30-0x0000000005C40000-0x0000000005C62000-memory.dmp
memory/2256-22-0x00000000029E0000-0x00000000029F0000-memory.dmp
memory/2256-97-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/2256-83-0x00000000029E0000-0x00000000029F0000-memory.dmp
memory/2256-82-0x00000000075B0000-0x0000000007653000-memory.dmp
memory/2256-52-0x0000000005E10000-0x0000000006164000-memory.dmp
memory/2256-72-0x00000000068F0000-0x000000000690E000-memory.dmp
memory/2256-61-0x0000000070BB0000-0x0000000070BFC000-memory.dmp
memory/2256-59-0x00000000029E0000-0x00000000029F0000-memory.dmp
memory/2256-58-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/3648-14-0x0000000004520000-0x0000000004530000-memory.dmp
memory/3648-86-0x0000000006ED0000-0x0000000006EDA000-memory.dmp
memory/3648-55-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/3648-60-0x0000000006B10000-0x0000000006B42000-memory.dmp
memory/3648-54-0x0000000005B80000-0x0000000005BCC000-memory.dmp
memory/3648-53-0x0000000005AB0000-0x0000000005ACE000-memory.dmp
memory/3648-71-0x0000000070BB0000-0x0000000070BFC000-memory.dmp
memory/3648-98-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/3648-31-0x0000000005470000-0x00000000054D6000-memory.dmp
memory/3648-84-0x00000000074B0000-0x0000000007B2A000-memory.dmp
memory/3648-13-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/3648-56-0x0000000004520000-0x0000000004530000-memory.dmp
memory/3648-94-0x0000000007180000-0x0000000007188000-memory.dmp
memory/3648-15-0x00000000044D0000-0x0000000004506000-memory.dmp
memory/3648-24-0x0000000004B60000-0x0000000005188000-memory.dmp
memory/3648-90-0x0000000007090000-0x000000000709E000-memory.dmp
memory/3648-91-0x00000000070A0000-0x00000000070B4000-memory.dmp
memory/4804-92-0x0000000005170000-0x0000000005180000-memory.dmp
memory/4804-25-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4804-87-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/4804-29-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/4804-43-0x0000000005170000-0x0000000005180000-memory.dmp