Analysis
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max time kernel
150s -
max time network
120s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
15-09-2021 07:01
Static task
static1
General
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Target
8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe
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Size
462KB
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MD5
b8b9c8c201a7ba8fec592e50ffed78d5
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SHA1
49e6e4543b7d53bd1375ee810eef19ed5f3dad84
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SHA256
8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513
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SHA512
1633fa3fbed820bac9ed0a39389be58637b63e30dbcfcc7472d8b3b4ee0c8919854709182040ccbadf9fcdd0c0177088d693aeee6e611d3300441f323978aabb
Malware Config
Signatures
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Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
UjpJkH0AKn.exesihost.exepid process 2756 UjpJkH0AKn.exe 2752 sihost.exe -
Loads dropped DLL 5 IoCs
Processes:
8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exepid process 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4000 timeout.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.execmd.exeUjpJkH0AKn.exesihost.exedescription pid process target process PID 636 wrote to memory of 2756 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe UjpJkH0AKn.exe PID 636 wrote to memory of 2756 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe UjpJkH0AKn.exe PID 636 wrote to memory of 2756 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe UjpJkH0AKn.exe PID 636 wrote to memory of 3060 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe cmd.exe PID 636 wrote to memory of 3060 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe cmd.exe PID 636 wrote to memory of 3060 636 8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe cmd.exe PID 3060 wrote to memory of 4000 3060 cmd.exe timeout.exe PID 3060 wrote to memory of 4000 3060 cmd.exe timeout.exe PID 3060 wrote to memory of 4000 3060 cmd.exe timeout.exe PID 2756 wrote to memory of 1876 2756 UjpJkH0AKn.exe schtasks.exe PID 2756 wrote to memory of 1876 2756 UjpJkH0AKn.exe schtasks.exe PID 2756 wrote to memory of 1876 2756 UjpJkH0AKn.exe schtasks.exe PID 2752 wrote to memory of 824 2752 sihost.exe schtasks.exe PID 2752 wrote to memory of 824 2752 sihost.exe schtasks.exe PID 2752 wrote to memory of 824 2752 sihost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe"C:\Users\Admin\AppData\Local\Temp\8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\UjpJkH0AKn.exe"C:\Users\Admin\AppData\Local\Temp\UjpJkH0AKn.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\8fe9b190e334be94cb89bafc7ae5db67e730031ec41c6b77c5afdd0c83a40513.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"2⤵
- Creates scheduled task(s)
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\UjpJkH0AKn.exeMD5
fff2830427a4520e0817cbb15f366e67
SHA100c027bf9caaab30124dffbca2337f2abfe57993
SHA2567b5b648e186a54063706008858984ad11d8ce8291907771a9a52d6775450fc83
SHA5122e5dc47c73229065d55335b93446da56bdcf149b24e2035f1a3cbd8f33dc6269a7ebe980154ace47df291baf97678d286492f6a49c44c78bb5cd157e5a07f6e8
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C:\Users\Admin\AppData\Local\Temp\UjpJkH0AKn.exeMD5
fff2830427a4520e0817cbb15f366e67
SHA100c027bf9caaab30124dffbca2337f2abfe57993
SHA2567b5b648e186a54063706008858984ad11d8ce8291907771a9a52d6775450fc83
SHA5122e5dc47c73229065d55335b93446da56bdcf149b24e2035f1a3cbd8f33dc6269a7ebe980154ace47df291baf97678d286492f6a49c44c78bb5cd157e5a07f6e8
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exeMD5
fff2830427a4520e0817cbb15f366e67
SHA100c027bf9caaab30124dffbca2337f2abfe57993
SHA2567b5b648e186a54063706008858984ad11d8ce8291907771a9a52d6775450fc83
SHA5122e5dc47c73229065d55335b93446da56bdcf149b24e2035f1a3cbd8f33dc6269a7ebe980154ace47df291baf97678d286492f6a49c44c78bb5cd157e5a07f6e8
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exeMD5
fff2830427a4520e0817cbb15f366e67
SHA100c027bf9caaab30124dffbca2337f2abfe57993
SHA2567b5b648e186a54063706008858984ad11d8ce8291907771a9a52d6775450fc83
SHA5122e5dc47c73229065d55335b93446da56bdcf149b24e2035f1a3cbd8f33dc6269a7ebe980154ace47df291baf97678d286492f6a49c44c78bb5cd157e5a07f6e8
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\Users\Admin\AppData\LocalLow\sqlite3.dllMD5
f964811b68f9f1487c2b41e1aef576ce
SHA1b423959793f14b1416bc3b7051bed58a1034025f
SHA25683bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7
SHA512565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4
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\Users\Admin\AppData\LocalLow\uS0wV5wY9qH3\freebl3.dllMD5
60acd24430204ad2dc7f148b8cfe9bdc
SHA1989f377b9117d7cb21cbe92a4117f88f9c7693d9
SHA2569876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97
SHA512626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01
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\Users\Admin\AppData\LocalLow\uS0wV5wY9qH3\mozglue.dllMD5
eae9273f8cdcf9321c6c37c244773139
SHA18378e2a2f3635574c106eea8419b5eb00b8489b0
SHA256a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc
SHA51206e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097
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\Users\Admin\AppData\LocalLow\uS0wV5wY9qH3\nss3.dllMD5
02cc7b8ee30056d5912de54f1bdfc219
SHA1a6923da95705fb81e368ae48f93d28522ef552fb
SHA2561989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5
SHA5120d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5
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\Users\Admin\AppData\LocalLow\uS0wV5wY9qH3\softokn3.dllMD5
4e8df049f3459fa94ab6ad387f3561ac
SHA106ed392bc29ad9d5fc05ee254c2625fd65925114
SHA25625a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871
SHA5123dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6
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memory/636-114-0x00000000022B0000-0x00000000023FA000-memory.dmpFilesize
1.3MB
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memory/636-115-0x0000000000400000-0x0000000002191000-memory.dmpFilesize
29.6MB
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memory/824-131-0x0000000000000000-mapping.dmp
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memory/1876-127-0x0000000000000000-mapping.dmp
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memory/2752-132-0x0000000000400000-0x0000000002147000-memory.dmpFilesize
29.3MB
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memory/2756-121-0x0000000000000000-mapping.dmp
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memory/2756-126-0x0000000000030000-0x0000000000034000-memory.dmpFilesize
16KB
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memory/2756-128-0x0000000000400000-0x0000000002147000-memory.dmpFilesize
29.3MB
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memory/3060-124-0x0000000000000000-mapping.dmp
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memory/4000-125-0x0000000000000000-mapping.dmp