tofsee | 5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0

General

Target

5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe
Size

150KB
MD5

0c3e9598600bccf1d8b874bdda869bca
SHA1

aeb7cd8f3f96fc4113fed76d86fa2434f2069e5e
SHA256

5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0
SHA512

6a47074a26686433edd0ebdc0573fb3541328cecc2f87421c49bf2c0a5087e36ce3a9f7d3438c37229f9b182f31e3509cd5e3c4941583a946ea777cb5909fb31

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\xdmckxjp = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

gjrrpnra.exe

pid process

656 gjrrpnra.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1736 netsh.exe

pid	process
656	gjrrpnra.exe

pid	process
1736	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\xdmckxjp\ImagePath = "C:\\Windows\\SysWOW64\\xdmckxjp\\gjrrpnra.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1812 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gjrrpnra.exe

description pid process target process

PID 656 set thread context of 1812 656 gjrrpnra.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1036 sc.exe
984 sc.exe
616 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1812	svchost.exe

description	pid	process	target process
PID 656 set thread context of 1812	656	gjrrpnra.exe	svchost.exe

pid	process
1036	sc.exe
984	sc.exe
616	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exegjrrpnra.exe

description	pid	process	target process
PID 1784 wrote to memory of 1100	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 1100	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 1100	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 1100	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 2004	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 2004	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 2004	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 2004	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	cmd.exe
PID 1784 wrote to memory of 1036	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 1036	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 1036	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 1036	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 984	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 984	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 984	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 984	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 616	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 616	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 616	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 616	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	sc.exe
PID 1784 wrote to memory of 1736	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	netsh.exe
PID 1784 wrote to memory of 1736	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	netsh.exe
PID 1784 wrote to memory of 1736	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	netsh.exe
PID 1784 wrote to memory of 1736	1784	5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe	netsh.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe
PID 656 wrote to memory of 1812	656	gjrrpnra.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe
"C:\Users\Admin\AppData\Local\Temp\5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1784

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xdmckxjp\
2⤵
PID:1100

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gjrrpnra.exe" C:\Windows\SysWOW64\xdmckxjp\
2⤵
PID:2004

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xdmckxjp binPath= "C:\Windows\SysWOW64\xdmckxjp\gjrrpnra.exe /d\"C:\Users\Admin\AppData\Local\Temp\5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1036

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xdmckxjp "wifi internet conection"
2⤵
- Launches sc.exe
PID:984

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xdmckxjp
2⤵
- Launches sc.exe
PID:616

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
2⤵
- Modifies Windows Firewall
PID:1736

C:\Windows\SysWOW64\xdmckxjp\gjrrpnra.exe
C:\Windows\SysWOW64\xdmckxjp\gjrrpnra.exe /d"C:\Users\Admin\AppData\Local\Temp\5ff46bca8d033a58673c281fa26b7158c1d11ba6eca99a1553e2651fbb0256f0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\gjrrpnra.exe
Filesize
11.4MB

MD5
0978200a9ba936e437e9368791209f64

SHA1
3e38c87ae45ae46d2ac142c577639d8acd986adf

SHA256
e90711a34dfb8227144254d53a81b018ef13c7ea4d3b643456e1a7a7a77d5b49

SHA512
c48886927effaaedd3f7055e0de6a6bafd72a1629de5ddf708dfcbc6fc0a61fc90f284ee994b5a634c8ddad1e3ce66ca90945a1fd2d9f22c416c5005a3889aee

Download Submit
C:\Windows\SysWOW64\xdmckxjp\gjrrpnra.exe
Filesize
11.4MB

MD5
0978200a9ba936e437e9368791209f64

SHA1
3e38c87ae45ae46d2ac142c577639d8acd986adf

SHA256
e90711a34dfb8227144254d53a81b018ef13c7ea4d3b643456e1a7a7a77d5b49

SHA512
c48886927effaaedd3f7055e0de6a6bafd72a1629de5ddf708dfcbc6fc0a61fc90f284ee994b5a634c8ddad1e3ce66ca90945a1fd2d9f22c416c5005a3889aee

Download Submit
memory/616-62-0x0000000000000000-mapping.dmp

Download
memory/656-75-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/656-68-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/656-66-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/984-61-0x0000000000000000-mapping.dmp

Download
memory/1036-60-0x0000000000000000-mapping.dmp

Download
memory/1100-57-0x0000000000000000-mapping.dmp

Download
memory/1736-64-0x0000000000000000-mapping.dmp

Download
memory/1784-54-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1784-65-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1784-56-0x0000000075661000-0x0000000075663000-memory.dmp

Filesize
8KB

Download
memory/1784-55-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1812-70-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1812-72-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1812-73-0x00000000000D9A6B-mapping.dmp

Download
memory/1812-78-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1812-79-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2004-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads