tofsee | 6a894de8a5d3285bbefc44ddf433b6a57b6199e649263204eed0d928de401ce2

General

Target

76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe
Size

10.3MB
MD5

81f79ce05d962b7d8b0d4977aead32df
SHA1

e24b156a6ab8da34f07f67256cfacf1495a5eaec
SHA256

76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6
SHA512

710719709d2a5b78b862981cc186b2b8ad7d0654f000e5af41ad7a61af438f3be4ac8cd752740fd4ccb1bf146cf1975beb00aadd921054ce367ee87db099c0b1
SSDEEP

6144:+5VCb4QuzF2tpIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz7:48NKF6p

Score

10^/10

tofsee evasion execution persistence privilege_escalation 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) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2912 netsh.exe

pid	process
2912	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\odwrqcwg\ImagePath = "C:\\Windows\\SysWOW64\\odwrqcwg\\qsnevpwp.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:

76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4716 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qsnevpwp.exe

pid process

2864 qsnevpwp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qsnevpwp.exe

description pid process target process

PID 2864 set thread context of 4716 2864 qsnevpwp.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

3808 sc.exe
4420 sc.exe
4120 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4716	svchost.exe

pid	process
2864	qsnevpwp.exe

description	pid	process	target process
PID 2864 set thread context of 4716	2864	qsnevpwp.exe	svchost.exe

pid	process
3808	sc.exe
4420	sc.exe
4120	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exeqsnevpwp.exe

description	pid	process	target process
PID 1984 wrote to memory of 3932	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 3932	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 3932	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 2080	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 2080	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 2080	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	cmd.exe
PID 1984 wrote to memory of 4420	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 4420	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 4420	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 4120	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 4120	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 4120	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 3808	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 3808	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 1984 wrote to memory of 3808	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	sc.exe
PID 2864 wrote to memory of 4716	2864	qsnevpwp.exe	svchost.exe
PID 2864 wrote to memory of 4716	2864	qsnevpwp.exe	svchost.exe
PID 2864 wrote to memory of 4716	2864	qsnevpwp.exe	svchost.exe
PID 2864 wrote to memory of 4716	2864	qsnevpwp.exe	svchost.exe
PID 2864 wrote to memory of 4716	2864	qsnevpwp.exe	svchost.exe
PID 1984 wrote to memory of 2912	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	netsh.exe
PID 1984 wrote to memory of 2912	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	netsh.exe
PID 1984 wrote to memory of 2912	1984	76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe
"C:\Users\Admin\AppData\Local\Temp\76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\odwrqcwg\
2⤵
PID:3932

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qsnevpwp.exe" C:\Windows\SysWOW64\odwrqcwg\
2⤵
PID:2080

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create odwrqcwg binPath= "C:\Windows\SysWOW64\odwrqcwg\qsnevpwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4420

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description odwrqcwg "wifi internet conection"
2⤵
- Launches sc.exe
PID:4120

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start odwrqcwg
2⤵
- Launches sc.exe
PID:3808

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
- Event Triggered Execution: Netsh Helper DLL
PID:2912

C:\Windows\SysWOW64\odwrqcwg\qsnevpwp.exe
C:\Windows\SysWOW64\odwrqcwg\qsnevpwp.exe /d"C:\Users\Admin\AppData\Local\Temp\76ede4f29dbd8a75b643e46cabd369ac888b8012630b8b244e08e0baac8535e6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\qsnevpwp.exe
Filesize
11.3MB

MD5
4c00d37564726b0265d09ca3cba42c6d

SHA1
6f29f058a0313290495fdd164a42c599d21aba74

SHA256
f99fe17a245a808a958864bdf8c9341e9c0dd4999009bd9930f26f11b3ed5f30

SHA512
cf5d29de4e5bdbcc6fe96e25947afb66561e189774e9ac673a1317e98c515a4ff7bc9526420efd6d4a9fcd29febf98653ac5dea131dbc58d5343806066db70d5

Download Submit
memory/4716-3-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4716-6-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4716-7-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4716-8-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4716-9-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads