tofsee | 1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 17:09

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General

Target

1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe
Size

219KB
MD5

4f7ba95b7c8b74d0d1b62314192c5f90
SHA1

076667f044a302714a0b9bbe87c96a2db02ece7b
SHA256

1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00
SHA512

6f26213119178a2a5962ffa30c18a2cb23a5ae073da9df404a253a58c41b88e4fe6a6fbb0091efb34d04bffb6c99b413e16dfc7d9cbca8b5b1a17bc282f8564b
SSDEEP

3072:hrHIQm9TOcx4AGPmQ2OvWRNqxDJMIeALuIcY3bCl2OVdRUXqHy5kVw+HM:ZHUMPOyJveAao3afQ2VxHM

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

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

pid	Process
2872	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\hshyzwz\ImagePath = "C:\\Windows\\SysWOW64\\hshyzwz\\mrbwqczb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	mrbwqczb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2820	2748	mrbwqczb.exe	44

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2920	sc.exe
2256	sc.exe
2888	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mrbwqczb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2352	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	31
PID 2708 wrote to memory of 2352	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	31
PID 2708 wrote to memory of 2352	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	31
PID 2708 wrote to memory of 2352	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	31
PID 2708 wrote to memory of 2552	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	33
PID 2708 wrote to memory of 2552	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	33
PID 2708 wrote to memory of 2552	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	33
PID 2708 wrote to memory of 2552	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	33
PID 2708 wrote to memory of 2256	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	35
PID 2708 wrote to memory of 2256	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	35
PID 2708 wrote to memory of 2256	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	35
PID 2708 wrote to memory of 2256	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	35
PID 2708 wrote to memory of 2888	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	37
PID 2708 wrote to memory of 2888	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	37
PID 2708 wrote to memory of 2888	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	37
PID 2708 wrote to memory of 2888	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	37
PID 2708 wrote to memory of 2920	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	39
PID 2708 wrote to memory of 2920	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	39
PID 2708 wrote to memory of 2920	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	39
PID 2708 wrote to memory of 2920	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	39
PID 2708 wrote to memory of 2872	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	42
PID 2708 wrote to memory of 2872	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	42
PID 2708 wrote to memory of 2872	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	42
PID 2708 wrote to memory of 2872	2708	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	42
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44
PID 2748 wrote to memory of 2820	2748	mrbwqczb.exe	44

C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe
"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hshyzwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mrbwqczb.exe" C:\Windows\SysWOW64\hshyzwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hshyzwz binPath= "C:\Windows\SysWOW64\hshyzwz\mrbwqczb.exe /d\"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hshyzwz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hshyzwz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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
  - System Location Discovery: System Language Discovery
  PID:2872

C:\Windows\SysWOW64\hshyzwz\mrbwqczb.exe
C:\Windows\SysWOW64\hshyzwz\mrbwqczb.exe /d"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mrbwqczb.exe

Filesize
13.6MB

MD5
f3ecb29c744546a53c413127395c5b1b

SHA1
fc683fbd752058f6cab189bad021618d63d87219

SHA256
4faa3062727fc4da08808b27d37765df441cbd522f43f6fe749d775924f39639

SHA512
afa907b6d7251a96c866039b0c3da8c41895dc511341980654860f5f4ac71088ff466c24bd507d5bb5bb1a069c6822607cc9d7f5fc9d23f3d6a92ef8814c6da6

Download Submit
memory/2708-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-7-0x0000000000400000-0x0000000002BAD000-memory.dmp

Filesize
39.7MB

Download
memory/2708-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2748-17-0x0000000000400000-0x0000000002BAD000-memory.dmp

Filesize
39.7MB

Download
memory/2820-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads