Analysis
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max time kernel
122s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
19-01-2021 07:56
Static task
static1
Behavioral task
behavioral1
Sample
b47f9debd444eacd67ee09f892a25329.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
b47f9debd444eacd67ee09f892a25329.exe
Resource
win10v20201028
General
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Target
b47f9debd444eacd67ee09f892a25329.exe
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Size
1.6MB
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MD5
b47f9debd444eacd67ee09f892a25329
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SHA1
d5a54558cfe679ed97615acc6b0e114854a292c6
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SHA256
2bffb59c94e38a0b9c564111115dd3bf5d9f333dc1554d308722637d9f88cdf1
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SHA512
1f59adc8b1876966c50d49b89802ec21935bcc6e8061f043ac67a0d79a93f678869031889447b539ad8d4649705670d9c5fcd17a0fcd178953a76de370d64841
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1396-12-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger behavioral1/memory/1396-13-0x000000000046364E-mapping.dmp family_snakekeylogger behavioral1/memory/1396-17-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 1396 InstallUtil.exe -
Loads dropped DLL 1 IoCs
Processes:
b47f9debd444eacd67ee09f892a25329.exepid process 804 b47f9debd444eacd67ee09f892a25329.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 checkip.dyndns.org 11 freegeoip.app 12 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b47f9debd444eacd67ee09f892a25329.exedescription pid process target process PID 804 set thread context of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
b47f9debd444eacd67ee09f892a25329.exeInstallUtil.exepid process 804 b47f9debd444eacd67ee09f892a25329.exe 804 b47f9debd444eacd67ee09f892a25329.exe 1396 InstallUtil.exe 1396 InstallUtil.exe 1396 InstallUtil.exe 1396 InstallUtil.exe 1396 InstallUtil.exe 1396 InstallUtil.exe 1396 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
b47f9debd444eacd67ee09f892a25329.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 804 b47f9debd444eacd67ee09f892a25329.exe Token: SeDebugPrivilege 1396 InstallUtil.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
b47f9debd444eacd67ee09f892a25329.exedescription pid process target process PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe PID 804 wrote to memory of 1396 804 b47f9debd444eacd67ee09f892a25329.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b47f9debd444eacd67ee09f892a25329.exe"C:\Users\Admin\AppData\Local\Temp\b47f9debd444eacd67ee09f892a25329.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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memory/804-7-0x0000000004CB0000-0x0000000004CB1000-memory.dmpFilesize
4KB
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memory/804-2-0x0000000074120000-0x000000007480E000-memory.dmpFilesize
6.9MB
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memory/804-8-0x0000000000570000-0x000000000057B000-memory.dmpFilesize
44KB
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memory/804-9-0x00000000005D0000-0x00000000005D1000-memory.dmpFilesize
4KB
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memory/804-6-0x00000000003E0000-0x00000000003E1000-memory.dmpFilesize
4KB
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memory/804-11-0x0000000004CB1000-0x0000000004CB2000-memory.dmpFilesize
4KB
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memory/804-5-0x00000000003C0000-0x00000000003DE000-memory.dmpFilesize
120KB
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memory/804-3-0x0000000000C60000-0x0000000000C61000-memory.dmpFilesize
4KB
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memory/1396-12-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
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memory/1396-13-0x000000000046364E-mapping.dmp
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memory/1396-16-0x0000000074120000-0x000000007480E000-memory.dmpFilesize
6.9MB
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memory/1396-17-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
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memory/1396-19-0x0000000004BA0000-0x0000000004BA1000-memory.dmpFilesize
4KB