Analysis
-
max time kernel
147s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-06-2022 05:25
Static task
static1
Behavioral task
behavioral1
Sample
32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe
Resource
win7-20220414-en
General
-
Target
32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe
-
Size
4.3MB
-
MD5
65ff785b3c3fd7b28efd2e4f6e4bddfb
-
SHA1
e529676f41a9e87a40c59102e58e35be45e28fcc
-
SHA256
32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f
-
SHA512
79fead17f47de53fa0e8d23e1ed9461563e5f45fe30c483eadbd774913c200e75e7b0eff6a5340315afbe53f57a5c3147da8a90937553094a6605519d89d1431
Malware Config
Extracted
vidar
10.1
231
http://tribecaflatstore.com/
-
profile_id
231
Signatures
-
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
-
Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1904-153-0x0000000000400000-0x00000000004D7000-memory.dmp family_vidar behavioral2/memory/1904-166-0x0000000000400000-0x00000000004D7000-memory.dmp family_vidar -
Executes dropped EXE 4 IoCs
Processes:
busshost.exeYTLoader.execonf.exeattachmentphoto.exepid process 1904 busshost.exe 3756 YTLoader.exe 3592 conf.exe 4804 attachmentphoto.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
conf.exe32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation conf.exe Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 9 ip-api.com -
AutoIT Executable 4 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule behavioral2/memory/3592-155-0x0000000000400000-0x0000000000526000-memory.dmp autoit_exe behavioral2/memory/4804-164-0x0000000000400000-0x0000000000526000-memory.dmp autoit_exe behavioral2/memory/1904-165-0x0000000002160000-0x0000000002260000-memory.dmp autoit_exe behavioral2/memory/4804-167-0x0000000000400000-0x0000000000526000-memory.dmp autoit_exe -
Drops file in Program Files directory 5 IoCs
Processes:
32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exedescription ioc process File opened for modification C:\Program Files (x86)\LetsSee!\conf.exe 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe File opened for modification C:\Program Files (x86)\LetsSee!\Uninstall.exe 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe File created C:\Program Files (x86)\LetsSee!\Uninstall.ini 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe File opened for modification C:\Program Files (x86)\LetsSee!\YTLoader.exe 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe File opened for modification C:\Program Files (x86)\LetsSee!\busshost.exe 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 2572 3756 WerFault.exe YTLoader.exe 1436 3592 WerFault.exe conf.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
busshost.exeYTLoader.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString busshost.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 YTLoader.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString YTLoader.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 busshost.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4760 schtasks.exe 4632 schtasks.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
YTLoader.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS YTLoader.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer YTLoader.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName YTLoader.exe -
Runs ping.exe 1 TTPs 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
busshost.exepid process 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe 1904 busshost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
YTLoader.exedescription pid process Token: SeDebugPrivilege 3756 YTLoader.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.execonf.exeattachmentphoto.execmd.execmd.execmd.exedescription pid process target process PID 3456 wrote to memory of 1904 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe busshost.exe PID 3456 wrote to memory of 1904 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe busshost.exe PID 3456 wrote to memory of 1904 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe busshost.exe PID 3456 wrote to memory of 3756 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe YTLoader.exe PID 3456 wrote to memory of 3756 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe YTLoader.exe PID 3456 wrote to memory of 3756 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe YTLoader.exe PID 3456 wrote to memory of 3592 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe conf.exe PID 3456 wrote to memory of 3592 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe conf.exe PID 3456 wrote to memory of 3592 3456 32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe conf.exe PID 3592 wrote to memory of 4804 3592 conf.exe attachmentphoto.exe PID 3592 wrote to memory of 4804 3592 conf.exe attachmentphoto.exe PID 3592 wrote to memory of 4804 3592 conf.exe attachmentphoto.exe PID 3592 wrote to memory of 4272 3592 conf.exe cmd.exe PID 3592 wrote to memory of 4272 3592 conf.exe cmd.exe PID 3592 wrote to memory of 4272 3592 conf.exe cmd.exe PID 4804 wrote to memory of 3856 4804 attachmentphoto.exe cmd.exe PID 4804 wrote to memory of 3856 4804 attachmentphoto.exe cmd.exe PID 4804 wrote to memory of 3856 4804 attachmentphoto.exe cmd.exe PID 4804 wrote to memory of 3952 4804 attachmentphoto.exe cmd.exe PID 4804 wrote to memory of 3952 4804 attachmentphoto.exe cmd.exe PID 4804 wrote to memory of 3952 4804 attachmentphoto.exe cmd.exe PID 4272 wrote to memory of 2012 4272 cmd.exe PING.EXE PID 4272 wrote to memory of 2012 4272 cmd.exe PING.EXE PID 4272 wrote to memory of 2012 4272 cmd.exe PING.EXE PID 3952 wrote to memory of 4632 3952 cmd.exe schtasks.exe PID 3952 wrote to memory of 4632 3952 cmd.exe schtasks.exe PID 3952 wrote to memory of 4632 3952 cmd.exe schtasks.exe PID 3856 wrote to memory of 4760 3856 cmd.exe schtasks.exe PID 3856 wrote to memory of 4760 3856 cmd.exe schtasks.exe PID 3856 wrote to memory of 4760 3856 cmd.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe"C:\Users\Admin\AppData\Local\Temp\32bccc3fff74705522284e13e8c382cb8b337ca6d5aa22e36e1183a498be603f.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\LetsSee!\busshost.exe"C:\Program Files (x86)\LetsSee!\busshost.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Program Files (x86)\LetsSee!\conf.exe"C:\Program Files (x86)\LetsSee!\conf.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exeC:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c SchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe4⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c SchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe4⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k ping -n 2 localhost < nul & del /F /Q "C:\Program Files (x86)\LetsSee!\conf.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\PING.EXEping -n 2 localhost4⤵
- Runs ping.exe
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 11283⤵
- Program crash
-
C:\Program Files (x86)\LetsSee!\YTLoader.exe"C:\Program Files (x86)\LetsSee!\YTLoader.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 16083⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3756 -ip 37561⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3592 -ip 35921⤵
-
C:\Windows\SysWOW64\schtasks.exeSchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe1⤵
- Creates scheduled task(s)
-
C:\Windows\SysWOW64\schtasks.exeSchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe1⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Program Files (x86)\LetsSee!\YTLoader.exeFilesize
3.0MB
MD5adc9db2753fa3daa6a8156254ba2a5f1
SHA150ff27e2e1c4acc35768b93b73c03f7630027f04
SHA256f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde
SHA5125f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195
-
C:\Program Files (x86)\LetsSee!\YTLoader.exeFilesize
3.0MB
MD5adc9db2753fa3daa6a8156254ba2a5f1
SHA150ff27e2e1c4acc35768b93b73c03f7630027f04
SHA256f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde
SHA5125f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195
-
C:\Program Files (x86)\LetsSee!\busshost.exeFilesize
728KB
MD535a1aab90a4c06bec878a095f5a45379
SHA120709a1631774fd21f93dd710e1c398df5e7b5ed
SHA256c8717078951bcfebf8d180765f26e2a994fd5545fd7f71ad9353dbf24f90d915
SHA512d94445dc92c524a56732bb0ea54fa5d09998293b8e1be4f28183659e7839af27c88a700a753e043253eb627436339dddcf1f5560911e225e4bceb1baed5d0f21
-
C:\Program Files (x86)\LetsSee!\busshost.exeFilesize
728KB
MD535a1aab90a4c06bec878a095f5a45379
SHA120709a1631774fd21f93dd710e1c398df5e7b5ed
SHA256c8717078951bcfebf8d180765f26e2a994fd5545fd7f71ad9353dbf24f90d915
SHA512d94445dc92c524a56732bb0ea54fa5d09998293b8e1be4f28183659e7839af27c88a700a753e043253eb627436339dddcf1f5560911e225e4bceb1baed5d0f21
-
C:\Program Files (x86)\LetsSee!\conf.exeFilesize
1.0MB
MD58670880cc194c53fb33adcfec30b1af5
SHA123a8227a18d2227e760266ba5d8610c8b07e023c
SHA256c28fe399970b309437febd959a7f8346899faa5a7d1d157b38169ef7e4091aa5
SHA5122774c525ecfbfea709d3c4193d250dc2263bf6926a0acaeae012fa97b4b5be0f8ffce037367b4a43323b27c8d0cd966b17b795ab2dff2f59a650ce412259138c
-
C:\Program Files (x86)\LetsSee!\conf.exeFilesize
1.0MB
MD58670880cc194c53fb33adcfec30b1af5
SHA123a8227a18d2227e760266ba5d8610c8b07e023c
SHA256c28fe399970b309437febd959a7f8346899faa5a7d1d157b38169ef7e4091aa5
SHA5122774c525ecfbfea709d3c4193d250dc2263bf6926a0acaeae012fa97b4b5be0f8ffce037367b4a43323b27c8d0cd966b17b795ab2dff2f59a650ce412259138c
-
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\temp.iniFilesize
199B
MD53d68da5fd157231843a13667676de3f2
SHA1206082eb56a40f38ba1e852ffcde4cd6e23cc338
SHA256f5c9d294b9c805e38bebe17ac7150bf591df5b28f28db56dc2a1a9e609331759
SHA512e136ed0cc3f47c52b439d72d39fcde3724852ec106e145c5e0dbb6d4d6e69209da7d160e3cc7c7ad51370230ffd4403477a65cd334cf71965473b847db0584a5
-
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exeFilesize
1.0MB
MD58670880cc194c53fb33adcfec30b1af5
SHA123a8227a18d2227e760266ba5d8610c8b07e023c
SHA256c28fe399970b309437febd959a7f8346899faa5a7d1d157b38169ef7e4091aa5
SHA5122774c525ecfbfea709d3c4193d250dc2263bf6926a0acaeae012fa97b4b5be0f8ffce037367b4a43323b27c8d0cd966b17b795ab2dff2f59a650ce412259138c
-
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exeFilesize
1.0MB
MD58670880cc194c53fb33adcfec30b1af5
SHA123a8227a18d2227e760266ba5d8610c8b07e023c
SHA256c28fe399970b309437febd959a7f8346899faa5a7d1d157b38169ef7e4091aa5
SHA5122774c525ecfbfea709d3c4193d250dc2263bf6926a0acaeae012fa97b4b5be0f8ffce037367b4a43323b27c8d0cd966b17b795ab2dff2f59a650ce412259138c
-
memory/1904-166-0x0000000000400000-0x00000000004D7000-memory.dmpFilesize
860KB
-
memory/1904-165-0x0000000002160000-0x0000000002260000-memory.dmpFilesize
1024KB
-
memory/1904-153-0x0000000000400000-0x00000000004D7000-memory.dmpFilesize
860KB
-
memory/1904-152-0x0000000002160000-0x0000000002260000-memory.dmpFilesize
1024KB
-
memory/1904-130-0x0000000000000000-mapping.dmp
-
memory/2012-160-0x0000000000000000-mapping.dmp
-
memory/3592-135-0x0000000000000000-mapping.dmp
-
memory/3592-155-0x0000000000400000-0x0000000000526000-memory.dmpFilesize
1.1MB
-
memory/3592-154-0x0000000002245000-0x00000000022DB000-memory.dmpFilesize
600KB
-
memory/3756-139-0x00000000050D0000-0x00000000050DA000-memory.dmpFilesize
40KB
-
memory/3756-140-0x00000000050E0000-0x00000000050E8000-memory.dmpFilesize
32KB
-
memory/3756-146-0x0000000005180000-0x0000000005188000-memory.dmpFilesize
32KB
-
memory/3756-145-0x0000000005170000-0x0000000005178000-memory.dmpFilesize
32KB
-
memory/3756-142-0x0000000005130000-0x0000000005138000-memory.dmpFilesize
32KB
-
memory/3756-144-0x0000000005160000-0x0000000005168000-memory.dmpFilesize
32KB
-
memory/3756-133-0x0000000000000000-mapping.dmp
-
memory/3756-143-0x0000000005140000-0x0000000005148000-memory.dmpFilesize
32KB
-
memory/3756-141-0x0000000005120000-0x0000000005128000-memory.dmpFilesize
32KB
-
memory/3756-138-0x0000000000400000-0x0000000000708000-memory.dmpFilesize
3.0MB
-
memory/3856-158-0x0000000000000000-mapping.dmp
-
memory/3952-159-0x0000000000000000-mapping.dmp
-
memory/4272-151-0x0000000000000000-mapping.dmp
-
memory/4632-161-0x0000000000000000-mapping.dmp
-
memory/4760-162-0x0000000000000000-mapping.dmp
-
memory/4804-163-0x000000000223D000-0x00000000022D3000-memory.dmpFilesize
600KB
-
memory/4804-164-0x0000000000400000-0x0000000000526000-memory.dmpFilesize
1.1MB
-
memory/4804-149-0x0000000000000000-mapping.dmp
-
memory/4804-167-0x0000000000400000-0x0000000000526000-memory.dmpFilesize
1.1MB