tofsee | 568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51

General

Target

568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe
Size

142KB
MD5

048725634c77ed7223cd9b91d90b172b
SHA1

40628d5ffe1bbd7915a628938a8acac0d9c77ba3
SHA256

568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51
SHA512

ad87648a4003832c7ec6129b2745c119c693f99628295cb318d285b8c5ca23d8ec0a4682fdbe3e8a880de0f6e9b84ed78ae3279c457477d5d6a2b27f1284446c

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:

kgcodszx.exe

pid process

4988 kgcodszx.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1064 netsh.exe

pid	process
4988	kgcodszx.exe

pid	process
1064	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\mhysknme\ImagePath = "C:\\Windows\\SysWOW64\\mhysknme\\kgcodszx.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:

568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

kgcodszx.exe

description pid process target process

PID 4988 set thread context of 4112 4988 kgcodszx.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

2092 sc.exe
4608 sc.exe
4580 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 4988 set thread context of 4112	4988	kgcodszx.exe	svchost.exe

pid	process
2092	sc.exe
4608	sc.exe
4580	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exekgcodszx.exe

description	pid	process	target process
PID 4184 wrote to memory of 4652	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 4652	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 4652	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 1960	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 1960	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 1960	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	cmd.exe
PID 4184 wrote to memory of 2092	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 2092	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 2092	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4608	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4608	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4608	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4580	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4580	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 4580	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	sc.exe
PID 4184 wrote to memory of 1064	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	netsh.exe
PID 4184 wrote to memory of 1064	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	netsh.exe
PID 4184 wrote to memory of 1064	4184	568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe	netsh.exe
PID 4988 wrote to memory of 4112	4988	kgcodszx.exe	svchost.exe
PID 4988 wrote to memory of 4112	4988	kgcodszx.exe	svchost.exe
PID 4988 wrote to memory of 4112	4988	kgcodszx.exe	svchost.exe
PID 4988 wrote to memory of 4112	4988	kgcodszx.exe	svchost.exe
PID 4988 wrote to memory of 4112	4988	kgcodszx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe
"C:\Users\Admin\AppData\Local\Temp\568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4184

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mhysknme\
2⤵
PID:4652

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kgcodszx.exe" C:\Windows\SysWOW64\mhysknme\
2⤵
PID:1960

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create mhysknme binPath= "C:\Windows\SysWOW64\mhysknme\kgcodszx.exe /d\"C:\Users\Admin\AppData\Local\Temp\568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2092

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description mhysknme "wifi internet conection"
2⤵
- Launches sc.exe
PID:4608

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start mhysknme
2⤵
- Launches sc.exe
PID:4580

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:1064

C:\Windows\SysWOW64\mhysknme\kgcodszx.exe
C:\Windows\SysWOW64\mhysknme\kgcodszx.exe /d"C:\Users\Admin\AppData\Local\Temp\568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4988

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:4112

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\kgcodszx.exe
Filesize
12.1MB

MD5
779ddba7faa1e64a4b229630b24df6e6

SHA1
6c4bb7c808eb4155a3bfcbd951106967dbe839bb

SHA256
d8e9c2e716e7e7c93b5699143039d41cfb1a64ec191a608222f96fcaf76c5813

SHA512
79526281d80eb4b6fa856225664c5885f49bea17475a2976e5f97a4dc2dc3ce608d6f554bcae6a635f55659a1f5051bbae6b5a548794a288c578ccbbcd3a0710

Download Submit
C:\Windows\SysWOW64\mhysknme\kgcodszx.exe
Filesize
12.1MB

MD5
779ddba7faa1e64a4b229630b24df6e6

SHA1
6c4bb7c808eb4155a3bfcbd951106967dbe839bb

SHA256
d8e9c2e716e7e7c93b5699143039d41cfb1a64ec191a608222f96fcaf76c5813

SHA512
79526281d80eb4b6fa856225664c5885f49bea17475a2976e5f97a4dc2dc3ce608d6f554bcae6a635f55659a1f5051bbae6b5a548794a288c578ccbbcd3a0710

Download Submit
memory/1064-137-0x0000000000000000-mapping.dmp

Download
memory/1960-132-0x0000000000000000-mapping.dmp

Download
memory/2092-134-0x0000000000000000-mapping.dmp

Download
memory/4112-140-0x0000000000000000-mapping.dmp

Download
memory/4112-145-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4112-144-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4112-141-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4184-130-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4580-136-0x0000000000000000-mapping.dmp

Download
memory/4608-135-0x0000000000000000-mapping.dmp

Download
memory/4652-131-0x0000000000000000-mapping.dmp

Download
memory/4988-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads