Analysis Overview
SHA256
e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf
Threat Level: Known bad
The file e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe was found to be: Known bad.
Malicious Activity Summary
Gurcu family
MilleniumRat
Gurcu, WhiteSnake
Milleniumrat family
Checks computer location settings
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Adds Run key to start application
Enumerates processes with tasklist
Enumerates physical storage devices
Unsigned PE
Browser Information Discovery
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Modifies registry key
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 03:07
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 03:07
Reported
2024-11-11 03:10
Platform
win7-20241010-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
MilleniumRat
Milleniumrat family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\ChromeUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\GoogleChromeUpdateLog\\Update.exe" | C:\Windows\system32\reg.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | raw.githubusercontent.com | N/A | N/A |
| N/A | raw.githubusercontent.com | N/A | N/A |
| N/A | raw.githubusercontent.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates processes with tasklist
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\tasklist.exe | N/A |
Browser Information Discovery
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\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\tasklist.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe
"C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB847.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpB847.tmp.bat
C:\Windows\system32\tasklist.exe
Tasklist /fi "PID eq 2844"
C:\Windows\system32\find.exe
find ":"
C:\Windows\system32\timeout.exe
Timeout /T 1 /Nobreak
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
"C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2632 -s 1768
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | raw.githubusercontent.com | udp |
| US | 185.199.111.133:443 | raw.githubusercontent.com | tcp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 185.199.111.133:443 | raw.githubusercontent.com | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
Files
memory/2844-0-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp
memory/2844-1-0x0000000000F90000-0x0000000001530000-memory.dmp
\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll
| MD5 | 65ccd6ecb99899083d43f7c24eb8f869 |
| SHA1 | 27037a9470cc5ed177c0b6688495f3a51996a023 |
| SHA256 | aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4 |
| SHA512 | 533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d |
memory/2844-6-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp
memory/2844-9-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpB847.tmp.bat
| MD5 | 209801139d95dd05d1549de59fd907aa |
| SHA1 | bf9d6a0931c8e759ec90f454860fa4893ac28b24 |
| SHA256 | 320f77a227485cbd6098c3713d41101b15f3c70c8029c7b1c650073612617a33 |
| SHA512 | a0c9d9b2301dc1d8c7ed5a9405a60bb78c5744f83d6eed7a7ca233c5c0210823984d934f649b0055764de555132fe96509147f238366b1bdb8318cfab750b551 |
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
| MD5 | 3d3c49dd5d13a242b436e0a065cd6837 |
| SHA1 | e38a773ffa08452c449ca5a880d89cfad24b6f1b |
| SHA256 | e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf |
| SHA512 | dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00 |
memory/2632-14-0x0000000000850000-0x0000000000DF0000-memory.dmp
memory/2632-17-0x000000001B530000-0x000000001B59A000-memory.dmp
memory/2632-20-0x00000000026F0000-0x0000000002715000-memory.dmp
memory/2632-21-0x000000001B710000-0x000000001B7C2000-memory.dmp
memory/2632-22-0x000000001E110000-0x000000001E43E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 03:07
Reported
2024-11-11 03:10
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
134s
Command Line
Signatures
Gurcu family
Gurcu, WhiteSnake
MilleniumRat
Milleniumrat family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ChromeUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\GoogleChromeUpdateLog\\Update.exe" | C:\Windows\system32\reg.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | raw.githubusercontent.com | N/A | N/A |
| N/A | raw.githubusercontent.com | N/A | N/A |
| N/A | raw.githubusercontent.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates processes with tasklist
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\tasklist.exe | N/A |
Browser Information Discovery
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\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\tasklist.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe
"C:\Users\Admin\AppData\Local\Temp\e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp980A.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp980A.tmp.bat
C:\Windows\system32\tasklist.exe
Tasklist /fi "PID eq 3404"
C:\Windows\system32\find.exe
find ":"
C:\Windows\system32\timeout.exe
Timeout /T 1 /Nobreak
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
"C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | raw.githubusercontent.com | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 185.199.109.133:443 | raw.githubusercontent.com | tcp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.109.199.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 185.199.109.133:443 | raw.githubusercontent.com | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/3404-0-0x00007FF9A05F3000-0x00007FF9A05F5000-memory.dmp
memory/3404-1-0x0000020216F20000-0x00000202174C0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll
| MD5 | 65ccd6ecb99899083d43f7c24eb8f869 |
| SHA1 | 27037a9470cc5ed177c0b6688495f3a51996a023 |
| SHA256 | aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4 |
| SHA512 | 533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d |
memory/3404-6-0x0000020231950000-0x00000202319C6000-memory.dmp
memory/3404-7-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp
memory/3404-8-0x00000202178F0000-0x000002021790E000-memory.dmp
memory/3404-12-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp980A.tmp.bat
| MD5 | 52b2ca4d8dc9cc7eeb91c80018b61b92 |
| SHA1 | 0242d9d09f20a8b7824eeb7435ce532db7e798de |
| SHA256 | 0dcc56ea956c725458ba0ce6f21e30ff963f8a260058de2b582aac123f2c28ba |
| SHA512 | c7e6cfa04449a03cbe3ec44e05c8bdb2da1646fd0ce666d49d9bc5e2dc99f6ac1ee3d995bbe2d94431457a461dde0e5286660822026bf2084eb2906f88b5b93c |
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
| MD5 | 3d3c49dd5d13a242b436e0a065cd6837 |
| SHA1 | e38a773ffa08452c449ca5a880d89cfad24b6f1b |
| SHA256 | e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf |
| SHA512 | dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00 |
memory/3476-19-0x0000023EBB990000-0x0000023EBB99A000-memory.dmp
memory/3476-20-0x0000023EBCBF0000-0x0000023EBCC5A000-memory.dmp
memory/3476-24-0x0000023EBB800000-0x0000023EBB826000-memory.dmp
memory/3476-23-0x0000023EBCCE0000-0x0000023EBCD1A000-memory.dmp
memory/3476-25-0x0000023EBD900000-0x0000023EBD9B2000-memory.dmp
memory/3476-26-0x0000023EBDA00000-0x0000023EBDA50000-memory.dmp
memory/3476-27-0x0000023EBD9B0000-0x0000023EBD9D2000-memory.dmp
memory/3476-28-0x0000023EBDC50000-0x0000023EBDF7E000-memory.dmp
memory/3476-47-0x0000023EBCCC0000-0x0000023EBCCD2000-memory.dmp