tofsee | 1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc

Analysis

max time kernel
145s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 20:34

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General

Target

1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe
Size

15.0MB
MD5

f480f6c7401bffe8b0f86af3ebcd0182
SHA1

af882623b8c62e80b69fe4b2d5841be744364665
SHA256

1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc
SHA512

84f00f4a7a2ad086a4f9fae8c08d854db6ec9c5df2feca1a4c76d01a5726522e86123d85e81fe01fdaca7569ff35805438ce0fa398a6e1e6a5c424c10eae00a6
SSDEEP

24576:PCoZopQ3TmLgqkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkP:Ksjms

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

ovicrush.cn

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\zwzwwcgw = "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
2700	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\zwzwwcgw\ImagePath = "C:\\Windows\\SysWOW64\\zwzwwcgw\\dqcintga.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	dqcintga.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2724	2680	dqcintga.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
3004	sc.exe
2364	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dqcintga.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 2900	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	30
PID 1180 wrote to memory of 2900	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	30
PID 1180 wrote to memory of 2900	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	30
PID 1180 wrote to memory of 2900	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	30
PID 1180 wrote to memory of 2944	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	32
PID 1180 wrote to memory of 2944	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	32
PID 1180 wrote to memory of 2944	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	32
PID 1180 wrote to memory of 2944	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	32
PID 1180 wrote to memory of 2364	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	34
PID 1180 wrote to memory of 2364	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	34
PID 1180 wrote to memory of 2364	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	34
PID 1180 wrote to memory of 2364	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	34
PID 1180 wrote to memory of 2812	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	36
PID 1180 wrote to memory of 2812	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	36
PID 1180 wrote to memory of 2812	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	36
PID 1180 wrote to memory of 2812	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	36
PID 1180 wrote to memory of 3004	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	38
PID 1180 wrote to memory of 3004	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	38
PID 1180 wrote to memory of 3004	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	38
PID 1180 wrote to memory of 3004	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	38
PID 1180 wrote to memory of 2700	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	41
PID 1180 wrote to memory of 2700	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	41
PID 1180 wrote to memory of 2700	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	41
PID 1180 wrote to memory of 2700	1180	1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe	41
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43
PID 2680 wrote to memory of 2724	2680	dqcintga.exe	43

C:\Users\Admin\AppData\Local\Temp\1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe
"C:\Users\Admin\AppData\Local\Temp\1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zwzwwcgw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dqcintga.exe" C:\Windows\SysWOW64\zwzwwcgw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zwzwwcgw binPath= "C:\Windows\SysWOW64\zwzwwcgw\dqcintga.exe /d\"C:\Users\Admin\AppData\Local\Temp\1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zwzwwcgw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zwzwwcgw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- 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:2700

C:\Windows\SysWOW64\zwzwwcgw\dqcintga.exe
C:\Windows\SysWOW64\zwzwwcgw\dqcintga.exe /d"C:\Users\Admin\AppData\Local\Temp\1868c1cbcb3587d158d0465a1a6f7abfe8af106aef076ceb916e746a0d184adc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2724

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\dqcintga.exe

Filesize
13.4MB

MD5
6bdd34f062189678a3888cc6783efa75

SHA1
524abfcb99fb7e75d81bb10ebfbaf38b8a081d28

SHA256
7e92ddf03708998f6d9361d8cd132243e5fb8f9afa74ec4d57bd1deaaaa72a9c

SHA512
b43ea820883f4253e7e473deac4a2b7a67af2d0c66d04afe2a1ca41eff35945c4122e5c78cd8a25653a5348cbd3b5c8c16f2e10e878331b811e27ef01740c9f2

Download Submit
memory/1180-7-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/1180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1180-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1180-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1180-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1180-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2680-17-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2724-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads