Analysis
- max time kernel
150s - max time network
144s - platform
windows10_x64 - resource
win10v20201028 - submitted
23/02/2021, 06:57
General
- Target FedEx Shipment 427781339903.exe
- Size 360KB
- Sample210223-dnhek9q5ae
- SHA256 d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c
Malware Config
Extracted
-
asyncrat
-
0.5.7B
-
severdops.ddns.net:6204
-
AsyncMutex_6SI8OkPnk
-
aes_key
smlEhY8EHpN9DiW02xfMTf3hMp9aJYBb
-
anti_detection
false
-
autorun
false
-
bdos
false
-
delay
Default
-
host
severdops.ddns.net
-
hwid
3
- install_file
-
install_folder
%AppData%
-
mutex
AsyncMutex_6SI8OkPnk
-
pastebin_config
null
-
port
6204
-
version
0.5.7B
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
- Async RAT payload 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xgnKjisViSA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp57E0.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"C:\Users\Admin\AppData\Local\Temp\FedEx Shipment 427781339903.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1056-21-0x00000000031D0000-0x00000000031D1000-memory.dmp
memory/1056-18-0x00000000739A0000-0x000000007408E000-memory.dmp
memory/1056-15-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4076-7-0x0000000005430000-0x0000000005431000-memory.dmp
memory/4076-10-0x00000000055B0000-0x00000000055B1000-memory.dmp
memory/4076-11-0x0000000005870000-0x0000000005873000-memory.dmp
memory/4076-12-0x0000000007110000-0x0000000007143000-memory.dmp
memory/4076-9-0x00000000055C0000-0x00000000055C1000-memory.dmp
memory/4076-8-0x00000000052B0000-0x00000000052B1000-memory.dmp
memory/4076-2-0x00000000739A0000-0x000000007408E000-memory.dmp
memory/4076-6-0x0000000005890000-0x0000000005891000-memory.dmp
memory/4076-5-0x00000000052C0000-0x00000000052C1000-memory.dmp
memory/4076-3-0x0000000000A50000-0x0000000000A51000-memory.dmp