Analysis Overview
SHA256
eb5ad872fce2860c2f6f83a6ee8966ad99c3603f8ece08657415160d163b9647
Threat Level: Known bad
The file c55440db0a749fe01816496b4aea5656 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Modifies Windows Firewall
Sets service image path in registry
Creates new service(s)
Deletes itself
Checks computer location settings
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-13 07:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-13 07:36
Reported
2024-03-13 07:38
Platform
win7-20240220-en
Max time kernel
146s
Max time network
146s
Command Line
Signatures
Tofsee
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ajsksirw = "0" | C:\Windows\SysWOW64\svchost.exe | N/A |
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ajsksirw\ImagePath = "C:\\Windows\\SysWOW64\\ajsksirw\\bokaipku.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ajsksirw\bokaipku.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2408 set thread context of 2388 | N/A | C:\Windows\SysWOW64\ajsksirw\bokaipku.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe
"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ajsksirw\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bokaipku.exe" C:\Windows\SysWOW64\ajsksirw\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ajsksirw binPath= "C:\Windows\SysWOW64\ajsksirw\bokaipku.exe /d\"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ajsksirw "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ajsksirw
C:\Windows\SysWOW64\ajsksirw\bokaipku.exe
C:\Windows\SysWOW64\ajsksirw\bokaipku.exe /d"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe"
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 104.47.53.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.106:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 74.125.193.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/2040-1-0x0000000000230000-0x0000000000330000-memory.dmp
memory/2040-4-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2040-3-0x00000000003A0000-0x00000000003B3000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bokaipku.exe
| MD5 | d482a790338406f8bf4ec94aa71a8447 |
| SHA1 | 6352ae87db31694d5d0c9f8ef36dfe33cf7fdfba |
| SHA256 | 84cca3f82382c161428f4c1bfa00034e907a0a45f715b30a2f1c5642de3cf960 |
| SHA512 | fc38536cc83bdf1bb4a46896c3901d75c57569f128840b37aabd4d1dcafeeaaf4160bf20dd539a793e601d9ae2cf560a544d1f4d59dffa1e1e87bb29c2b33b33 |
memory/2040-8-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2388-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2388-9-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2408-14-0x00000000005C0000-0x00000000006C0000-memory.dmp
memory/2388-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2408-15-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2388-18-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-21-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-13 07:36
Reported
2024-03-13 07:38
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Tofsee
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\apjadpmr\ImagePath = "C:\\Windows\\SysWOW64\\apjadpmr\\wfnlegjj.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\apjadpmr\wfnlegjj.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4028 set thread context of 1236 | N/A | C:\Windows\SysWOW64\apjadpmr\wfnlegjj.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe
"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\apjadpmr\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfnlegjj.exe" C:\Windows\SysWOW64\apjadpmr\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create apjadpmr binPath= "C:\Windows\SysWOW64\apjadpmr\wfnlegjj.exe /d\"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description apjadpmr "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start apjadpmr
C:\Windows\SysWOW64\apjadpmr\wfnlegjj.exe
C:\Windows\SysWOW64\apjadpmr\wfnlegjj.exe /d"C:\Users\Admin\AppData\Local\Temp\c55440db0a749fe01816496b4aea5656.exe"
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 104.47.54.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.204.74:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 74.125.193.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | 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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| 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 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/996-1-0x0000000000760000-0x0000000000860000-memory.dmp
memory/996-2-0x0000000000700000-0x0000000000713000-memory.dmp
memory/996-4-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\wfnlegjj.exe
| MD5 | 08bfdfe7b7e767ad2991a7fc48228bec |
| SHA1 | 57dafdf658952e4ed2c3945572a10a19654d0814 |
| SHA256 | 4c8846586dcc03d751099a1e4d4fe70b78289d0bc1764f01c55063c84c3ae15f |
| SHA512 | dde800be49d17d2cdbdf6367c4f48ee012fc60cbbb7c32ce8139523b326fab9c45ae3618ac7042c77b3d16991eb4c3dd24db25ea7f42362017d83d0552bd1aaa |
memory/4028-8-0x0000000000560000-0x0000000000660000-memory.dmp
memory/4028-9-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1236-10-0x0000000000B50000-0x0000000000B65000-memory.dmp
memory/1236-13-0x0000000000B50000-0x0000000000B65000-memory.dmp
memory/996-14-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1236-15-0x0000000000B50000-0x0000000000B65000-memory.dmp
memory/1236-16-0x0000000000B50000-0x0000000000B65000-memory.dmp
memory/4028-17-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4028-22-0x00000000004E0000-0x00000000004F3000-memory.dmp
memory/996-23-0x0000000000760000-0x0000000000860000-memory.dmp
memory/1236-25-0x0000000000B50000-0x0000000000B65000-memory.dmp