Analysis Overview
SHA256
a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58
Threat Level: Known bad
The file a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58 was found to be: Known bad.
Malicious Activity Summary
Arkei
Deletes itself
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Checks processor information in registry
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-19 07:34
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-19 07:34
Reported
2022-04-19 07:37
Platform
win7-20220414-en
Max time kernel
120s
Max time network
119s
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\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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 388 set thread context of 556 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe"
C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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 |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
| RU | 45.8.124.64:80 | jsdkci.link | tcp |
Files
memory/556-54-0x0000000000400000-0x000000000043C000-memory.dmp
memory/556-55-0x0000000000408430-mapping.dmp
memory/388-57-0x00000000005FF000-0x0000000000617000-memory.dmp
memory/388-59-0x0000000000220000-0x0000000000249000-memory.dmp
memory/556-58-0x0000000000400000-0x000000000043C000-memory.dmp
memory/556-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/556-61-0x0000000076C81000-0x0000000076C83000-memory.dmp
memory/556-62-0x0000000060900000-0x0000000060992000-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/524-83-0x0000000000000000-mapping.dmp
memory/1804-84-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-19 07:34
Reported
2022-04-19 07:37
Platform
win10v2004-20220414-en
Max time kernel
142s
Max time network
182s
Command Line
Signatures
Arkei
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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 4936 set thread context of 1760 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.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\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe"
C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a2c6f733cee76e07ef2fe055e20bafcf443c5f22a2b97bf92cc84e608cc53d58.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 5
Network
| Country | Destination | Domain | Proto |
| NL | 87.248.202.1:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| US | 13.89.178.26:443 | tcp | |
| GB | 92.123.140.25:80 | tcp | |
| US | 8.8.8.8:53 | 226.101.242.52.in-addr.arpa | udp |
| 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 |
| US | 8.8.8.8:53 | 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.2.0.0.0.0.2.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/4936-130-0x00000000005DF000-0x00000000005F7000-memory.dmp
memory/1760-131-0x0000000000000000-mapping.dmp
memory/1760-132-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4936-134-0x00000000005DF000-0x00000000005F7000-memory.dmp
memory/4936-136-0x0000000002060000-0x0000000002089000-memory.dmp
memory/1760-135-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1760-137-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1760-138-0x0000000060900000-0x0000000060992000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
C:\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |
memory/4880-159-0x0000000000000000-mapping.dmp
memory/2536-160-0x0000000000000000-mapping.dmp