Analysis Overview
SHA256
1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed
Threat Level: Known bad
The file 1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed was found to be: Known bad.
Malicious Activity Summary
Tinba / TinyBanker
Adds Run key to start application
Program crash
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-18 19:26
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-18 19:26
Reported
2024-05-18 19:29
Platform
win7-20240508-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Tinba / TinyBanker
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\6F692B97 = "C:\\Users\\Admin\\AppData\\Roaming\\6F692B97\\bin.exe" | C:\Windows\SysWOW64\winver.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\winver.exe | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\taskhost.exe
"taskhost.exe"
C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe
"C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe"
C:\Windows\SysWOW64\winver.exe
winver
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | elitiorecfreetoo.cc | udp |
| US | 216.218.185.162:80 | elitiorecfreetoo.cc | tcp |
Files
memory/1204-1-0x00000000020C0000-0x00000000020C6000-memory.dmp
memory/1204-3-0x00000000020C0000-0x00000000020C6000-memory.dmp
memory/1204-6-0x00000000020C0000-0x00000000020C6000-memory.dmp
memory/1148-4-0x0000000000170000-0x0000000000176000-memory.dmp
memory/2132-8-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1160-14-0x0000000000140000-0x0000000000146000-memory.dmp
memory/1148-22-0x0000000000390000-0x0000000000396000-memory.dmp
memory/1204-17-0x0000000002D10000-0x0000000002D16000-memory.dmp
memory/1096-11-0x0000000000260000-0x0000000000266000-memory.dmp
memory/1204-24-0x0000000002D10000-0x0000000002D16000-memory.dmp
memory/1160-25-0x0000000000140000-0x0000000000146000-memory.dmp
memory/1096-23-0x0000000000260000-0x0000000000266000-memory.dmp
memory/1148-27-0x0000000000390000-0x0000000000396000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-18 19:26
Reported
2024-05-18 19:29
Platform
win10v2004-20240508-en
Max time kernel
138s
Max time network
100s
Command Line
Signatures
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\winver.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\winver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3708 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | C:\Windows\SysWOW64\winver.exe |
| PID 3708 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | C:\Windows\SysWOW64\winver.exe |
| PID 3708 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | C:\Windows\SysWOW64\winver.exe |
| PID 3708 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | C:\Windows\SysWOW64\winver.exe |
| PID 684 wrote to memory of 3436 | N/A | C:\Windows\SysWOW64\winver.exe | C:\Windows\Explorer.EXE |
| PID 3708 wrote to memory of 3436 | N/A | C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe | C:\Windows\Explorer.EXE |
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe
"C:\Users\Admin\AppData\Local\Temp\1efb50439e1f8cf65915273d7b4097495532c8c9bf3307b14658ce7f4397d5ed.exe"
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
C:\Windows\SysWOW64\winver.exe
winver
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 684 -ip 684
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 300
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3708 -ip 3708
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 744
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 89.43.201.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.75:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.75:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.43.201.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.201.86.20.in-addr.arpa | udp |
| US | 52.111.229.48:443 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
Files
memory/3708-1-0x0000000004550000-0x0000000004BA8000-memory.dmp
memory/3708-2-0x0000000000510000-0x0000000000511000-memory.dmp
memory/3436-4-0x0000000000950000-0x0000000000956000-memory.dmp
memory/3436-5-0x0000000000950000-0x0000000000956000-memory.dmp
memory/3708-6-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3436-10-0x0000000000960000-0x0000000000966000-memory.dmp
memory/3708-13-0x0000000004550000-0x0000000004BA8000-memory.dmp