Analysis
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max time kernel
195s -
max time network
197s -
platform
windows10-1703_x64 -
resource
win10-20240404-ja -
resource tags
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submitted
01-10-2024 06:10
General
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Target
お見積り依頼.exe
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Size
617KB
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MD5
7c1e195506cf284e5b49c8b3233a17ca
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SHA1
21965a5bbbb0eb10a8943e0f0ad80f5077a87695
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SHA256
759bf48589770e15226a694e1d8ea23a58e69f5121958eb692c68d46a59a25b4
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SHA512
e785e17bee1abdc476ef3e12f76d5b77113ad318c4a0feb1f6a4f6060bf2ab0643d8af2d38c7718f83cbf60f0cbcb2b40037cccf9ef05b4d4aac62a8f551e27d
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SSDEEP
12288:B5oRpQVnipnobW7NGzGW9x252e96CjrzhnheagXJ:joUnKCqVvT8I/UJ
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops file in System32 directory 1 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 16 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 25 IoCs
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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.
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\IME\SHARED\imebroker.exeC:\Windows\System32\IME\SHARED\imebroker.exe -Embedding1⤵
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C:\Windows\system32\mmc.exe"C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s1⤵
- Drops file in System32 directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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Filesize
1KB
MD50c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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Filesize
18KB
MD527608ae3c8ae9aab4b9519572beea06b
SHA1840cbe35716a76d9d782d119b3372b20f5287d93
SHA25669e34355e1606942e7cf07f47138d3c268bb7c02a44bf34a9c9c394ead188b66
SHA512788fdc3d16ee15efc56af86a8fe8a160c7f017d9571bee08c7f9bcd51435e2e8330f56a20b4da16ea426178787c5749b282c3d778c3bff2092fee32b0745eb25
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Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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Filesize
6.9MB
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Filesize
584KB
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Filesize
1.1MB
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Filesize
120KB
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Filesize
4KB
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Filesize
6.9MB
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Filesize
416KB
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Filesize
624KB
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Filesize
4KB
-
Filesize
40KB
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Filesize
6.9MB
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Filesize
5.0MB
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Filesize
640KB
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Filesize
136KB
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Filesize
1.6MB
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Filesize
56KB
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Filesize
1.1MB
-
Filesize
152KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
1.8MB
-
Filesize
80KB
-
Filesize
288KB
-
Filesize
660KB
-
Filesize
300KB
-
Filesize
300KB
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Filesize
3.3MB
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Filesize
660KB
-
Filesize
204KB
-
Filesize
408KB
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Filesize
408KB
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Filesize
584KB
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Filesize
6.2MB
-
Filesize
104KB
-
Filesize
32KB
-
Filesize
320KB
-
Filesize
592KB
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Filesize
120KB
-
Filesize
64KB
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Filesize
216KB
-
Filesize
300KB
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Filesize
136KB
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Filesize
472KB
-
Filesize
300KB
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Filesize
112KB
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Filesize
3.3MB