Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2022, 23:01
Behavioral task
behavioral1
Sample
3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe
Resource
win7-20221111-en
General
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Target
3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe
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Size
210KB
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MD5
e2783bd34e44f6de337f04e88f73249c
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SHA1
6f7f92dc471b1dbb2b2b9392eea0e1375b384eee
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SHA256
3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b
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SHA512
f567322e4a910e1c864dc65ab38afc994be204d34457a8c89a77eb7d0126718af3b0f70f304e48b99ef7f40dceb4b9a8a7cdab5986bb4327e7a2313816eafe59
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SSDEEP
3072:QzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIpO9nxTY8Rt9cAP5o4iDFC11/v:QLV6Bta6dtJmakIM5JxbEzDwj9rCkr
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe" 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe File opened for modification C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 372 schtasks.exe 4660 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1508 wrote to memory of 372 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 81 PID 1508 wrote to memory of 372 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 81 PID 1508 wrote to memory of 372 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 81 PID 1508 wrote to memory of 4660 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 83 PID 1508 wrote to memory of 4660 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 83 PID 1508 wrote to memory of 4660 1508 3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe"C:\Users\Admin\AppData\Local\Temp\3dcdd7d9f93d651bfe8cac02938594a8de76cc11c07dbbce369432ab06e9084b.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD7B.tmp"2⤵
- Creates scheduled task(s)
PID:372
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAED4.tmp"2⤵
- Creates scheduled task(s)
PID:4660
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD537e353043872dd9871820b5a1b667a3c
SHA1d957a0d83dad1fd90156b80260ed980c2215c2b3
SHA256a8b0fcd21f2cd626bd19bca8900f6fa993ce554378cb48e670e90a6388e368a2
SHA512b76d8e64de10c2df82248896adba3b01439f0fb71b3b890d4fcf0eef46a7cb60be7375b633a9daf2130696a4280131a82e34514c0e0cf7a6573227dd2e013fb2
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Filesize
1KB
MD52f26d92c1eeead3896820e56ec46f6f1
SHA1d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA25699a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
SHA5126c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892