Analysis
-
max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21/03/2023, 13:26
Behavioral task
behavioral1
Sample
c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe
Resource
win7-20230220-en
General
-
Target
c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe
-
Size
48KB
-
MD5
0c2353b8b6923a16f523944d6514bb8f
-
SHA1
d66baa60bcfbc057466b3ca0ef3076c5fd02210b
-
SHA256
c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3
-
SHA512
857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d
-
SSDEEP
768:OV9TQo2oIL4+M0+Li4ciiyYb1ge6eez+/vEgK/J8AmVc6KN:OVpQoVsbRbSlnz+/nkJ8AmVclN
Malware Config
Extracted
asyncrat
1.0.7
Default
127.0.0.1:8809
thebest39393.ddns.net:8809
DcRatMutex_qwqdanchun
-
delay
1
-
install
true
-
install_file
Microsoft Services.exe
-
install_folder
%AppData%
Signatures
-
Async RAT payload 3 IoCs
resource yara_rule behavioral2/memory/2052-136-0x00000000005A0000-0x00000000005B2000-memory.dmp asyncrat behavioral2/files/0x0003000000023122-144.dat asyncrat behavioral2/files/0x0003000000023122-145.dat asyncrat -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe -
Executes dropped EXE 1 IoCs
pid Process 3284 Microsoft Services.exe -
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.
pid Process 1512 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4512 timeout.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe Token: SeDebugPrivilege 3284 Microsoft Services.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2052 wrote to memory of 3992 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 85 PID 2052 wrote to memory of 3992 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 85 PID 2052 wrote to memory of 4448 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 88 PID 2052 wrote to memory of 4448 2052 c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe 88 PID 4448 wrote to memory of 4512 4448 cmd.exe 89 PID 4448 wrote to memory of 4512 4448 cmd.exe 89 PID 3992 wrote to memory of 1512 3992 cmd.exe 90 PID 3992 wrote to memory of 1512 3992 cmd.exe 90 PID 4448 wrote to memory of 3284 4448 cmd.exe 94 PID 4448 wrote to memory of 3284 4448 cmd.exe 94 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe"C:\Users\Admin\AppData\Local\Temp\c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3992 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"'3⤵
- Creates scheduled task(s)
PID:1512
-
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBDA7.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:4448 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:4512
-
-
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3284
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
162B
MD5e9ac326b90f8604cb605f2738f65d4aa
SHA1ab04adf8952896c26b5357e3ceae171122b73e09
SHA256acc308780881e334770db26194bbf8949b18121e5c0b9eb785d579c22bc07bdf
SHA51231a4a711c2dc97e77c4cd2afd83a5820e2bada62dafe971cab9e7346665503c6938e19ca828d6c5fcf7839809bb4608ce8825d8b2175ab4b5e690b203868c0d6
-
Filesize
48KB
MD50c2353b8b6923a16f523944d6514bb8f
SHA1d66baa60bcfbc057466b3ca0ef3076c5fd02210b
SHA256c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3
SHA512857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d
-
Filesize
48KB
MD50c2353b8b6923a16f523944d6514bb8f
SHA1d66baa60bcfbc057466b3ca0ef3076c5fd02210b
SHA256c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3
SHA512857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d