Analysis Overview
SHA256
b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4
Threat Level: Known bad
The file b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4 was found to be: Known bad.
Malicious Activity Summary
GCleaner
Downloads MZ/PE file
Loads dropped DLL
Deletes itself
Unsigned PE
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-05 22:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-05 22:47
Reported
2024-09-05 22:52
Platform
win7-20240903-en
Max time kernel
117s
Max time network
117s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
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\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\taskkill.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe
"C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe" /f
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
Files
memory/2528-1-0x00000000006B0000-0x00000000007B0000-memory.dmp
memory/2528-2-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2528-3-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/2528-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/2528-13-0x00000000006B0000-0x00000000007B0000-memory.dmp
memory/2528-14-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2528-16-0x0000000000400000-0x00000000005F8000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PLSLTMYI\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/2528-28-0x0000000000400000-0x00000000005F8000-memory.dmp
\Users\Admin\AppData\Local\Temp\E6LqTySXEdR8\Y-Cleaner.exe
| MD5 | a8cf5621811f7fac55cfe8cb3fa6b9f6 |
| SHA1 | 121356839e8138a03141f5f5856936a85bd2a474 |
| SHA256 | 614a0362ab87cee48d0935b5bb957d539be1d94c6fdeb3fe42fac4fbe182c10c |
| SHA512 | 4479d951435f222ca7306774002f030972c9f1715d6aaf512fca9420dd79cb6d08240f80129f213851773290254be34f0ff63c7b1f4d554a7db5f84b69e84bdd |
memory/2528-38-0x00000000006B0000-0x00000000007B0000-memory.dmp
memory/2528-37-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2528-36-0x0000000000400000-0x00000000005F8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-05 22:47
Reported
2024-09-05 22:52
Platform
win10-20240404-en
Max time kernel
290s
Max time network
259s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe
"C:\Users\Admin\AppData\Local\Temp\b7397159694117ebb0149f905dad292d9ad5106b358fce9c97bc187c158547a4.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 520
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 868
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 972
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 996
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1140
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1152
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1344
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
| US | 8.8.8.8:53 | 114.75.66.80.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.0.a.d.6.8.4.c.2.6.6.6.8.4.0.e.1.0.a.d.6.8.4.c.8.0.8.0.8.0.8.0.ip6.arpa | udp |
| US | 8.8.8.8:53 | 11.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
Files
memory/4384-2-0x0000000002140000-0x000000000217B000-memory.dmp
memory/4384-1-0x0000000000650000-0x0000000000750000-memory.dmp
memory/4384-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4384-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/4384-13-0x0000000000650000-0x0000000000750000-memory.dmp
memory/4384-15-0x0000000002140000-0x000000000217B000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CRDFDX20\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/4384-18-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4384-17-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4384-29-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4384-32-0x0000000000400000-0x00000000005F8000-memory.dmp