Analysis
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max time kernel
348s -
max time network
358s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 03:41
Static task
static1
Behavioral task
behavioral1
Sample
.csrss.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
.csrss.exe
Resource
win10v2004-20220812-en
General
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Target
.csrss.exe
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Size
1.0MB
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MD5
1235793b06610aee455d2b77309dafa3
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SHA1
828e562831a5eff21a521514297183bc95a56ea6
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SHA256
e0574e15253c6a75e46bb422234b05f6bde742fcbc5695c16b4b9d7748d3238b
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SHA512
e22166afaf5b2a34f1f38aa67b210bc7b7bb9a1c9f31747e219384bf3cc8c096d3b69a014b44a1c768f7d0dc7ec5a7a9b315f3d12e27f93b1d26521c06d8748e
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SSDEEP
24576:iAGfqdOOU3Xt5LVJ27B4czX9nRuvyyuAFgEwo4O1:wfqdOOmt5vKaiXJgqlsl
Malware Config
Extracted
lokibot
http://sempersim.su/gm14/fre.php
http://kbfvzoboss.bid/alien/fre.php
http://alphastand.trade/alien/fre.php
http://alphastand.win/alien/fre.php
http://alphastand.top/alien/fre.php
Signatures
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
.csrss.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook .csrss.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook .csrss.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook .csrss.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
.csrss.exedescription pid process target process PID 5060 set thread context of 4912 5060 .csrss.exe .csrss.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
.csrss.exepid process 5060 .csrss.exe 5060 .csrss.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
.csrss.exepid process 4912 .csrss.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
.csrss.exe.csrss.exedescription pid process Token: SeDebugPrivilege 5060 .csrss.exe Token: SeDebugPrivilege 4912 .csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
.csrss.exedescription pid process target process PID 5060 wrote to memory of 2840 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 2840 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 2840 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe PID 5060 wrote to memory of 4912 5060 .csrss.exe .csrss.exe -
outlook_office_path 1 IoCs
Processes:
.csrss.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook .csrss.exe -
outlook_win_path 1 IoCs
Processes:
.csrss.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook .csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\.csrss.exe"C:\Users\Admin\AppData\Local\Temp\.csrss.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5060 -
C:\Users\Admin\AppData\Local\Temp\.csrss.exe"C:\Users\Admin\AppData\Local\Temp\.csrss.exe"2⤵PID:2840
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C:\Users\Admin\AppData\Local\Temp\.csrss.exe"C:\Users\Admin\AppData\Local\Temp\.csrss.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4912