Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
18-01-2021 09:23
Static task
static1
Behavioral task
behavioral1
Sample
27970a1a59a9e4f39aed843e55e31ae0.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
27970a1a59a9e4f39aed843e55e31ae0.exe
Resource
win10v20201028
General
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Target
27970a1a59a9e4f39aed843e55e31ae0.exe
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Size
1.5MB
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MD5
27970a1a59a9e4f39aed843e55e31ae0
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SHA1
c1c54be2a890bc5174b9a94d19385d3c9e9f8b8a
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SHA256
30eb1963753aa4a9d4987f1e43c684d91b1b9ca11202a7f751bc621a0149cb19
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SHA512
0fbb5bbb642b8230a2c18dd06cf930fab67fd1e3b6b461a2560b7464d9f557723d9fe813ebcafb5b7400be1e45f8bb275056f500523d9d740f4251ebde9f15ae
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/1140-26-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger behavioral1/memory/1140-27-0x000000000046381E-mapping.dmp family_snakekeylogger behavioral1/memory/1140-30-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger -
Executes dropped EXE 2 IoCs
Processes:
scis.exeInstallUtil.exepid process 1728 scis.exe 1140 InstallUtil.exe -
Loads dropped DLL 2 IoCs
Processes:
27970a1a59a9e4f39aed843e55e31ae0.exescis.exepid process 1812 27970a1a59a9e4f39aed843e55e31ae0.exe 1728 scis.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\not = "C:\\Users\\Admin\\scis.exe" reg.exe -
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:
scis.exedescription pid process target process PID 1728 set thread context of 1140 1728 scis.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
27970a1a59a9e4f39aed843e55e31ae0.exescis.exeInstallUtil.exepid process 1812 27970a1a59a9e4f39aed843e55e31ae0.exe 1812 27970a1a59a9e4f39aed843e55e31ae0.exe 1812 27970a1a59a9e4f39aed843e55e31ae0.exe 1728 scis.exe 1728 scis.exe 1140 InstallUtil.exe 1140 InstallUtil.exe 1140 InstallUtil.exe 1140 InstallUtil.exe 1140 InstallUtil.exe 1140 InstallUtil.exe 1140 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
27970a1a59a9e4f39aed843e55e31ae0.exescis.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1812 27970a1a59a9e4f39aed843e55e31ae0.exe Token: SeDebugPrivilege 1728 scis.exe Token: SeDebugPrivilege 1140 InstallUtil.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
27970a1a59a9e4f39aed843e55e31ae0.execmd.exescis.exedescription pid process target process PID 1812 wrote to memory of 1776 1812 27970a1a59a9e4f39aed843e55e31ae0.exe cmd.exe PID 1812 wrote to memory of 1776 1812 27970a1a59a9e4f39aed843e55e31ae0.exe cmd.exe PID 1812 wrote to memory of 1776 1812 27970a1a59a9e4f39aed843e55e31ae0.exe cmd.exe PID 1812 wrote to memory of 1776 1812 27970a1a59a9e4f39aed843e55e31ae0.exe cmd.exe PID 1776 wrote to memory of 1624 1776 cmd.exe reg.exe PID 1776 wrote to memory of 1624 1776 cmd.exe reg.exe PID 1776 wrote to memory of 1624 1776 cmd.exe reg.exe PID 1776 wrote to memory of 1624 1776 cmd.exe reg.exe PID 1812 wrote to memory of 1728 1812 27970a1a59a9e4f39aed843e55e31ae0.exe scis.exe PID 1812 wrote to memory of 1728 1812 27970a1a59a9e4f39aed843e55e31ae0.exe scis.exe PID 1812 wrote to memory of 1728 1812 27970a1a59a9e4f39aed843e55e31ae0.exe scis.exe PID 1812 wrote to memory of 1728 1812 27970a1a59a9e4f39aed843e55e31ae0.exe scis.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe PID 1728 wrote to memory of 1140 1728 scis.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\27970a1a59a9e4f39aed843e55e31ae0.exe"C:\Users\Admin\AppData\Local\Temp\27970a1a59a9e4f39aed843e55e31ae0.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "not" /t REG_SZ /d "C:\Users\Admin\scis.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "not" /t REG_SZ /d "C:\Users\Admin\scis.exe"3⤵
- Adds Run key to start application
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C:\Users\Admin\scis.exe"C:\Users\Admin\scis.exe"2⤵
- Executes dropped EXE
- 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"3⤵
- 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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C:\Users\Admin\scis.exeMD5
27970a1a59a9e4f39aed843e55e31ae0
SHA1c1c54be2a890bc5174b9a94d19385d3c9e9f8b8a
SHA25630eb1963753aa4a9d4987f1e43c684d91b1b9ca11202a7f751bc621a0149cb19
SHA5120fbb5bbb642b8230a2c18dd06cf930fab67fd1e3b6b461a2560b7464d9f557723d9fe813ebcafb5b7400be1e45f8bb275056f500523d9d740f4251ebde9f15ae
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C:\Users\Admin\scis.exeMD5
27970a1a59a9e4f39aed843e55e31ae0
SHA1c1c54be2a890bc5174b9a94d19385d3c9e9f8b8a
SHA25630eb1963753aa4a9d4987f1e43c684d91b1b9ca11202a7f751bc621a0149cb19
SHA5120fbb5bbb642b8230a2c18dd06cf930fab67fd1e3b6b461a2560b7464d9f557723d9fe813ebcafb5b7400be1e45f8bb275056f500523d9d740f4251ebde9f15ae
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\scis.exeMD5
27970a1a59a9e4f39aed843e55e31ae0
SHA1c1c54be2a890bc5174b9a94d19385d3c9e9f8b8a
SHA25630eb1963753aa4a9d4987f1e43c684d91b1b9ca11202a7f751bc621a0149cb19
SHA5120fbb5bbb642b8230a2c18dd06cf930fab67fd1e3b6b461a2560b7464d9f557723d9fe813ebcafb5b7400be1e45f8bb275056f500523d9d740f4251ebde9f15ae
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memory/1140-32-0x0000000004960000-0x0000000004961000-memory.dmpFilesize
4KB
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memory/1140-30-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
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memory/1140-29-0x0000000073E00000-0x00000000744EE000-memory.dmpFilesize
6.9MB
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memory/1140-27-0x000000000046381E-mapping.dmp
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memory/1140-26-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
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memory/1624-9-0x0000000000000000-mapping.dmp
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memory/1728-20-0x0000000000630000-0x0000000000631000-memory.dmpFilesize
4KB
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memory/1728-25-0x0000000000631000-0x0000000000632000-memory.dmpFilesize
4KB
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memory/1728-12-0x0000000000000000-mapping.dmp
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memory/1728-21-0x00000000008C0000-0x00000000008CB000-memory.dmpFilesize
44KB
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memory/1728-22-0x0000000000B60000-0x0000000000B61000-memory.dmpFilesize
4KB
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memory/1728-15-0x0000000073E00000-0x00000000744EE000-memory.dmpFilesize
6.9MB
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memory/1728-16-0x0000000000150000-0x0000000000151000-memory.dmpFilesize
4KB
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memory/1776-8-0x0000000000000000-mapping.dmp
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memory/1812-5-0x00000000002F0000-0x000000000030E000-memory.dmpFilesize
120KB
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memory/1812-2-0x0000000073E00000-0x00000000744EE000-memory.dmpFilesize
6.9MB
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memory/1812-3-0x0000000000EE0000-0x0000000000EE1000-memory.dmpFilesize
4KB
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memory/1812-6-0x0000000000320000-0x0000000000321000-memory.dmpFilesize
4KB
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memory/1812-7-0x0000000000A40000-0x0000000000A41000-memory.dmpFilesize
4KB
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memory/1812-10-0x0000000000A41000-0x0000000000A42000-memory.dmpFilesize
4KB