Analysis Overview
SHA256
aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e
Threat Level: Known bad
The file aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e was found to be: Known bad.
Malicious Activity Summary
Arkei
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-19 07:34
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-19 07:34
Reported
2022-04-19 07:37
Platform
win10v2004-20220414-en
Max time kernel
112s
Max time network
185s
Command Line
Signatures
Arkei
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5088 set thread context of 3020 | N/A | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe
"C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe"
C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe
"C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3020 -ip 3020
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1328
Network
| Country | Destination | Domain | Proto |
| IE | 40.126.31.71:443 | tcp | |
| US | 20.42.65.88:443 | tcp | |
| US | 40.125.122.151:443 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | jsdkci.link | udp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| US | 8.8.8.8:53 | 96.108.152.52.in-addr.arpa | udp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| US | 8.8.8.8:53 | 226.101.242.52.in-addr.arpa | udp |
Files
memory/5088-130-0x00000000007BF000-0x00000000007D7000-memory.dmp
memory/5088-131-0x00000000007BF000-0x00000000007D7000-memory.dmp
memory/5088-132-0x0000000000590000-0x00000000005B9000-memory.dmp
memory/3020-133-0x0000000000000000-mapping.dmp
memory/3020-134-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3020-136-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3020-137-0x0000000000400000-0x000000000043C000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-19 07:34
Reported
2022-04-19 07:37
Platform
win7-20220414-en
Max time kernel
55s
Max time network
79s
Command Line
Signatures
Arkei
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | N/A |
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2024 set thread context of 1004 | N/A | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe
"C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe"
C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe
"C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\aedd3ab9ebad560ccd8f02129fd585ddeac9a9e921c9dbcb42beefb724bba10e.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 5
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | jsdkci.link | udp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
Files
memory/2024-54-0x000000000028F000-0x00000000002A7000-memory.dmp
memory/1004-55-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1004-56-0x0000000000408430-mapping.dmp
memory/2024-57-0x000000000028F000-0x00000000002A7000-memory.dmp
memory/2024-59-0x0000000000450000-0x0000000000479000-memory.dmp
memory/1004-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1004-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1004-62-0x0000000075AE1000-0x0000000075AE3000-memory.dmp
\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |
memory/1812-65-0x0000000000000000-mapping.dmp
memory/1216-66-0x0000000000000000-mapping.dmp