Analysis Overview
SHA256
df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
Threat Level: Known bad
The file zxcvb.exekfxfuesu was found to be: Known bad.
Malicious Activity Summary
Arkei
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
Checks computer location settings
Loads dropped DLL
Suspicious use of SetThreadContext
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-05-07 04:34
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-07 04:34
Reported
2022-05-07 04:47
Platform
win7-20220414-en
Max time kernel
149s
Max time network
187s
Command Line
Signatures
Arkei
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 908 set thread context of 1784 | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
"C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
Network
| Country | Destination | Domain | Proto |
| SC | 185.215.113.89:80 | 185.215.113.89 | tcp |
| US | 8.8.8.8:53 | rockrock.ug | udp |
| SC | 185.215.113.89:80 | rockrock.ug | tcp |
| SC | 185.215.113.89:80 | rockrock.ug | tcp |
Files
memory/908-54-0x00000000013E0000-0x00000000013FE000-memory.dmp
memory/908-55-0x00000000763E1000-0x00000000763E3000-memory.dmp
memory/908-56-0x0000000008710000-0x0000000008874000-memory.dmp
memory/908-57-0x00000000011F0000-0x0000000001238000-memory.dmp
memory/1784-58-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-59-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-61-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-63-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-64-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-66-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-67-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-68-0x000000000043C0B2-mapping.dmp
memory/1784-70-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1784-71-0x0000000000400000-0x000000000043D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-07 04:34
Reported
2022-05-07 04:47
Platform
win10v2004-20220414-en
Max time kernel
169s
Max time network
176s
Command Line
Signatures
Arkei
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3912 set thread context of 4980 | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\zxcvb.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
"C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4980 -ip 4980
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 1348
Network
| Country | Destination | Domain | Proto |
| US | 216.239.36.21:80 | tcp | |
| US | 20.189.173.14:443 | tcp | |
| SC | 185.215.113.89:80 | 185.215.113.89 | tcp |
| NL | 104.110.191.140:80 | tcp | |
| US | 8.8.8.8:53 | rockrock.ug | udp |
| SC | 185.215.113.89:80 | rockrock.ug | tcp |
| US | 34.117.168.233:443 | tcp |
Files
memory/3912-130-0x0000000000080000-0x000000000009E000-memory.dmp
memory/3912-131-0x0000000005070000-0x0000000005614000-memory.dmp
memory/3912-132-0x0000000004AC0000-0x0000000004B52000-memory.dmp
memory/3912-133-0x0000000004A50000-0x0000000004A5A000-memory.dmp
memory/4980-134-0x0000000000000000-mapping.dmp
memory/4980-135-0x0000000000400000-0x000000000043D000-memory.dmp
memory/4980-137-0x0000000000400000-0x000000000043D000-memory.dmp
memory/4980-138-0x0000000000400000-0x000000000043D000-memory.dmp
memory/4980-139-0x0000000060900000-0x0000000060992000-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 |