Analysis
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max time kernel
138s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
05-03-2023 23:36
Behavioral task
behavioral1
Sample
bDCK.exe
Resource
win7-20230220-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
bDCK.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
12 signatures
150 seconds
General
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Target
bDCK.exe
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Size
138KB
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MD5
e22c97f1931fdec29962ae778c5b44c3
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SHA1
7b0587f698a12619a735ce2536ec6a298ac92874
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SHA256
2380ff875da958af3a345764860a8d70761bdc4f9feb20c1b183a83b9cae1b0c
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SHA512
6f65b90401c650f66e22fb65c176edf73c09ef0bc0a34f7ee761fb984032e975cc3835dcdb22bc3d62c99678ad7a03b0fcbeb8dd679728ce49d035763c49c309
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SSDEEP
3072:2bvt5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Y0:2bv7S7BqjjYHdrqkL/
Score
10/10
Malware Config
Extracted
Family
arrowrat
Botnet
Y905DC
C2
windowsii.duckdns.org:1338
Mutex
QTZ3XG
Signatures
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Modifies Installed Components in the registry 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe 836 bDCK.exe -
Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeDebugPrivilege 836 bDCK.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: 33 1640 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1640 AUDIODG.EXE Token: 33 1640 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1640 AUDIODG.EXE Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe -
Suspicious use of FindShellTrayWindow 27 IoCs
pid Process 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe -
Suspicious use of SendNotifyMessage 17 IoCs
pid Process 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe -
Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 836 wrote to memory of 1804 836 bDCK.exe 28 PID 836 wrote to memory of 1804 836 bDCK.exe 28 PID 836 wrote to memory of 1804 836 bDCK.exe 28 PID 836 wrote to memory of 1716 836 bDCK.exe 29 PID 836 wrote to memory of 1716 836 bDCK.exe 29 PID 836 wrote to memory of 1716 836 bDCK.exe 29 PID 836 wrote to memory of 1716 836 bDCK.exe 29 PID 836 wrote to memory of 896 836 bDCK.exe 30 PID 836 wrote to memory of 896 836 bDCK.exe 30 PID 836 wrote to memory of 896 836 bDCK.exe 30 PID 836 wrote to memory of 896 836 bDCK.exe 30 PID 836 wrote to memory of 2028 836 bDCK.exe 38 PID 836 wrote to memory of 2028 836 bDCK.exe 38 PID 836 wrote to memory of 2028 836 bDCK.exe 38 PID 836 wrote to memory of 2028 836 bDCK.exe 38 PID 836 wrote to memory of 1760 836 bDCK.exe 31 PID 836 wrote to memory of 1760 836 bDCK.exe 31 PID 836 wrote to memory of 1760 836 bDCK.exe 31 PID 836 wrote to memory of 1760 836 bDCK.exe 31 PID 836 wrote to memory of 1480 836 bDCK.exe 37 PID 836 wrote to memory of 1480 836 bDCK.exe 37 PID 836 wrote to memory of 1480 836 bDCK.exe 37 PID 836 wrote to memory of 1480 836 bDCK.exe 37 PID 836 wrote to memory of 1312 836 bDCK.exe 36 PID 836 wrote to memory of 1312 836 bDCK.exe 36 PID 836 wrote to memory of 1312 836 bDCK.exe 36 PID 836 wrote to memory of 1312 836 bDCK.exe 36 PID 836 wrote to memory of 968 836 bDCK.exe 35 PID 836 wrote to memory of 968 836 bDCK.exe 35 PID 836 wrote to memory of 968 836 bDCK.exe 35 PID 836 wrote to memory of 968 836 bDCK.exe 35 PID 836 wrote to memory of 568 836 bDCK.exe 34 PID 836 wrote to memory of 568 836 bDCK.exe 34 PID 836 wrote to memory of 568 836 bDCK.exe 34 PID 836 wrote to memory of 568 836 bDCK.exe 34 PID 836 wrote to memory of 1472 836 bDCK.exe 33 PID 836 wrote to memory of 1472 836 bDCK.exe 33 PID 836 wrote to memory of 1472 836 bDCK.exe 33 PID 836 wrote to memory of 1472 836 bDCK.exe 33 PID 836 wrote to memory of 1144 836 bDCK.exe 32 PID 836 wrote to memory of 1144 836 bDCK.exe 32 PID 836 wrote to memory of 1144 836 bDCK.exe 32 PID 836 wrote to memory of 1144 836 bDCK.exe 32 PID 1804 wrote to memory of 844 1804 explorer.exe 39 PID 1804 wrote to memory of 844 1804 explorer.exe 39 PID 1804 wrote to memory of 844 1804 explorer.exe 39 -
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
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C:\Users\Admin\AppData\Local\Temp\bDCK.exe"C:\Users\Admin\AppData\Local\Temp\bDCK.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Windows\explorer.exe"C:\Windows\explorer.exe"2⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Windows\system32\ctfmon.exectfmon.exe3⤵PID:844
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1716
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:896
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1760
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1144
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1472
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:568
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:968
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1312
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:1480
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Y905DC windowsii.duckdns.org 1338 QTZ3XG2⤵PID:2028
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x16c1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1640