tofsee | 69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69

General

Target

69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe
Size

10.9MB
MD5

d317d5f42247781eb3a91c3ec3e334ab
SHA1

ce9cc42433c12fab5af097adeac7c61317e305aa
SHA256

69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69
SHA512

dd810a62da01893e76cb36c510fbe52899f2b49e27b673ae99f897ccf27e5fa2b3fd6281461c35dfa743af8ea979415e12c0ffe7a8da3479f91ed7f730f7f0df
SSDEEP

24576:kxtPE2gggggggggggggggggggggggggggggggggggggggggggggggggggggggggg:WtPE

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zxomdeqs = "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

Processes:

netsh.exe

pid process

2464 netsh.exe

pid	process
2464	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\zxomdeqs\ImagePath = "C:\\Windows\\SysWOW64\\zxomdeqs\\wzwpgics.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2912 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wzwpgics.exe

pid process

2568 wzwpgics.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wzwpgics.exe

description pid process target process

PID 2568 set thread context of 2912 2568 wzwpgics.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

2408 sc.exe
2688 sc.exe
2736 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2912	svchost.exe

pid	process
2568	wzwpgics.exe

description	pid	process	target process
PID 2568 set thread context of 2912	2568	wzwpgics.exe	svchost.exe

pid	process
2408	sc.exe
2688	sc.exe
2736	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exewzwpgics.exe

description	pid	process	target process
PID 2080 wrote to memory of 2512	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2512	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2512	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2512	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2532	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2532	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2532	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2532	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	cmd.exe
PID 2080 wrote to memory of 2408	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2408	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2408	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2408	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2688	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2688	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2688	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2688	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2736	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2736	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2736	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2736	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	sc.exe
PID 2080 wrote to memory of 2464	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	netsh.exe
PID 2080 wrote to memory of 2464	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	netsh.exe
PID 2080 wrote to memory of 2464	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	netsh.exe
PID 2080 wrote to memory of 2464	2080	69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe	netsh.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe
PID 2568 wrote to memory of 2912	2568	wzwpgics.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe
"C:\Users\Admin\AppData\Local\Temp\69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2080

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zxomdeqs\
2⤵
PID:2512

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wzwpgics.exe" C:\Windows\SysWOW64\zxomdeqs\
2⤵
PID:2532

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zxomdeqs binPath= "C:\Windows\SysWOW64\zxomdeqs\wzwpgics.exe /d\"C:\Users\Admin\AppData\Local\Temp\69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2408

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zxomdeqs "wifi internet conection"
2⤵
- Launches sc.exe
PID:2688

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zxomdeqs
2⤵
- Launches sc.exe
PID:2736

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:2464

C:\Windows\SysWOW64\zxomdeqs\wzwpgics.exe
C:\Windows\SysWOW64\zxomdeqs\wzwpgics.exe /d"C:\Users\Admin\AppData\Local\Temp\69b4acf0e4f2fb04e24c83c233f794ea13b47e096cbbda7030c4208de84b2d69.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2568

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2912

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

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

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.0MB

MD5
3cea0cf05638a67be2233a46f9d79955

SHA1
a2eda9f2c290b2875dab71d2533826c381bc9511

SHA256
1335885568e3a8749708be7f636d3757b50527d227019f7274a70f85d81398e3

SHA512
712ba002530016ccf9c6013980a5c47e0e559779585168cd3d6cee01f857dbe9958bd00dc4a28d2650ecd475463fe257dff99b15e3f7bc73bdbf0902dfbb5222

Download Submit
memory/2080-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2080-2-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/2080-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2080-8-0x0000000000400000-0x0000000000867000-memory.dmp

Filesize
4.4MB

Download
memory/2080-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-14-0x0000000000400000-0x0000000000867000-memory.dmp

Filesize
4.4MB

Download
memory/2912-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads