tofsee | b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190

General

Target

b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe
Size

97KB
MD5

d728588592929f9bf15f3751b2021b5c
SHA1

03165adb99b7471a7e8e271d8ae1aec391a7ed14
SHA256

b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190
SHA512

75f723bab92604734235007e73950cb2e20374f00439eb155210e2ac5da4c2e09b936e7d3e54c3fd18bfea5f9b35a7e56c565be184f70bcfa3b38129f0e5b637

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
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

tnpmgcmr.exe

pid process

2612 tnpmgcmr.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3076 netsh.exe

pid	process
2612	tnpmgcmr.exe

pid	process
3076	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\clplzejq\ImagePath = "C:\\Windows\\SysWOW64\\clplzejq\\tnpmgcmr.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tnpmgcmr.exe

description pid process target process

PID 2612 set thread context of 1460 2612 tnpmgcmr.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

4932 sc.exe
2308 sc.exe
636 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 2612 set thread context of 1460	2612	tnpmgcmr.exe	svchost.exe

pid	process
4932	sc.exe
2308	sc.exe
636	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exetnpmgcmr.exe

description	pid	process	target process
PID 3280 wrote to memory of 3564	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 3564	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 3564	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 2256	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 2256	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 2256	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	cmd.exe
PID 3280 wrote to memory of 4932	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 4932	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 4932	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 2308	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 2308	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 2308	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 636	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 636	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 636	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	sc.exe
PID 3280 wrote to memory of 3076	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	netsh.exe
PID 3280 wrote to memory of 3076	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	netsh.exe
PID 3280 wrote to memory of 3076	3280	b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe	netsh.exe
PID 2612 wrote to memory of 1460	2612	tnpmgcmr.exe	svchost.exe
PID 2612 wrote to memory of 1460	2612	tnpmgcmr.exe	svchost.exe
PID 2612 wrote to memory of 1460	2612	tnpmgcmr.exe	svchost.exe
PID 2612 wrote to memory of 1460	2612	tnpmgcmr.exe	svchost.exe
PID 2612 wrote to memory of 1460	2612	tnpmgcmr.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe
"C:\Users\Admin\AppData\Local\Temp\b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3280

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\clplzejq\
2⤵
PID:3564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnpmgcmr.exe" C:\Windows\SysWOW64\clplzejq\
2⤵
PID:2256

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create clplzejq binPath= "C:\Windows\SysWOW64\clplzejq\tnpmgcmr.exe /d\"C:\Users\Admin\AppData\Local\Temp\b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4932

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description clplzejq "wifi internet conection"
2⤵
- Launches sc.exe
PID:2308

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start clplzejq
2⤵
- Launches sc.exe
PID:636

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:3076

C:\Windows\SysWOW64\clplzejq\tnpmgcmr.exe
C:\Windows\SysWOW64\clplzejq\tnpmgcmr.exe /d"C:\Users\Admin\AppData\Local\Temp\b3486e0d693e668eec18773a3da49ad26de5fbae3b5993b26726262f0687a190.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:1460

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

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tnpmgcmr.exe
Filesize
14.5MB

MD5
8f70104089669eb2d3a6ce6ca9859518

SHA1
ddb832c485569694e11ef2a3f820dcf1e889e56d

SHA256
67df4263fbf11b8bfc3aa9e1b3f4c64ea219b7a0d69ed9295ebb35a76bc65d22

SHA512
0f661de9fd189084b7b17565b16d9f45a8803796cf168d7d9b7db2f60b4e2808edb8da9e5c5e3c8ac6be99f350fbe63705e1e28d5905321e6008baed3742edc2

Download Submit
C:\Windows\SysWOW64\clplzejq\tnpmgcmr.exe
Filesize
14.5MB

MD5
8f70104089669eb2d3a6ce6ca9859518

SHA1
ddb832c485569694e11ef2a3f820dcf1e889e56d

SHA256
67df4263fbf11b8bfc3aa9e1b3f4c64ea219b7a0d69ed9295ebb35a76bc65d22

SHA512
0f661de9fd189084b7b17565b16d9f45a8803796cf168d7d9b7db2f60b4e2808edb8da9e5c5e3c8ac6be99f350fbe63705e1e28d5905321e6008baed3742edc2

Download Submit
memory/636-139-0x0000000000000000-mapping.dmp

Download
memory/1460-151-0x0000000000F00000-0x0000000000F15000-memory.dmp

Filesize
84KB

Download
memory/1460-150-0x0000000000F00000-0x0000000000F15000-memory.dmp

Filesize
84KB

Download
memory/1460-146-0x0000000000F00000-0x0000000000F15000-memory.dmp

Filesize
84KB

Download
memory/1460-145-0x0000000000000000-mapping.dmp

Download
memory/2256-135-0x0000000000000000-mapping.dmp

Download
memory/2308-138-0x0000000000000000-mapping.dmp

Download
memory/2612-144-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2612-143-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2612-148-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3076-140-0x0000000000000000-mapping.dmp

Download
memory/3280-141-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3280-132-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3280-133-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3564-134-0x0000000000000000-mapping.dmp

Download
memory/4932-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads