tofsee | 5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808

General

Target

5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe
Size

102KB
MD5

b179524b99b575e5f77cee6207521f13
SHA1

1b7edee9230f3468841a979e11eb9e310c584103
SHA256

5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808
SHA512

42a812884d687121adab289cd28659b006a215e65bf7a58e88d723513fd6573ce274881e576ae021df5a0370674cad60f64ee02863ee277acf0021b9544a6f5b

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:

qpbxcmwj.exe

pid process

3020 qpbxcmwj.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1772 netsh.exe

pid	process
3020	qpbxcmwj.exe

pid	process
1772	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\umwikbar\ImagePath = "C:\\Windows\\SysWOW64\\umwikbar\\qpbxcmwj.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:

5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

qpbxcmwj.exe

description pid process target process

PID 3020 set thread context of 4764 3020 qpbxcmwj.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

3672 sc.exe
4888 sc.exe
1276 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 3020 set thread context of 4764	3020	qpbxcmwj.exe	svchost.exe

pid	process
3672	sc.exe
4888	sc.exe
1276	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exeqpbxcmwj.exe

description	pid	process	target process
PID 2624 wrote to memory of 4676	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 4676	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 4676	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 4056	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 4056	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 4056	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	cmd.exe
PID 2624 wrote to memory of 3672	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 3672	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 3672	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 4888	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 4888	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 4888	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 1276	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 1276	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 2624 wrote to memory of 1276	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	sc.exe
PID 3020 wrote to memory of 4764	3020	qpbxcmwj.exe	svchost.exe
PID 3020 wrote to memory of 4764	3020	qpbxcmwj.exe	svchost.exe
PID 3020 wrote to memory of 4764	3020	qpbxcmwj.exe	svchost.exe
PID 3020 wrote to memory of 4764	3020	qpbxcmwj.exe	svchost.exe
PID 3020 wrote to memory of 4764	3020	qpbxcmwj.exe	svchost.exe
PID 2624 wrote to memory of 1772	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	netsh.exe
PID 2624 wrote to memory of 1772	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	netsh.exe
PID 2624 wrote to memory of 1772	2624	5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe
"C:\Users\Admin\AppData\Local\Temp\5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\umwikbar\
2⤵
PID:4676

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qpbxcmwj.exe" C:\Windows\SysWOW64\umwikbar\
2⤵
PID:4056

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create umwikbar binPath= "C:\Windows\SysWOW64\umwikbar\qpbxcmwj.exe /d\"C:\Users\Admin\AppData\Local\Temp\5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3672

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description umwikbar "wifi internet conection"
2⤵
- Launches sc.exe
PID:4888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start umwikbar
2⤵
- Launches sc.exe
PID:1276

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:1772

C:\Windows\SysWOW64\umwikbar\qpbxcmwj.exe
C:\Windows\SysWOW64\umwikbar\qpbxcmwj.exe /d"C:\Users\Admin\AppData\Local\Temp\5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:4764

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\qpbxcmwj.exe
Filesize
10.1MB

MD5
70d8fd954a0d1609c907f0596570cdf4

SHA1
9a940720ecad0842688c2c67422e195778ed6ceb

SHA256
62ff2eae740a8997a514629ce26ed1710d2ea5881df776726f8209f96ab076fb

SHA512
c31a55529e9cc046014b558507edaee37f6df0d5f07b72691eef6367290364ef4d8b27d9d068f303a5f31f05ced180ea9b84b3338517d70c8bed76b59ec2a306

Download Submit
C:\Windows\SysWOW64\umwikbar\qpbxcmwj.exe
Filesize
10.1MB

MD5
70d8fd954a0d1609c907f0596570cdf4

SHA1
9a940720ecad0842688c2c67422e195778ed6ceb

SHA256
62ff2eae740a8997a514629ce26ed1710d2ea5881df776726f8209f96ab076fb

SHA512
c31a55529e9cc046014b558507edaee37f6df0d5f07b72691eef6367290364ef4d8b27d9d068f303a5f31f05ced180ea9b84b3338517d70c8bed76b59ec2a306

Download Submit
memory/1276-136-0x0000000000000000-mapping.dmp

Download
memory/1772-143-0x0000000000000000-mapping.dmp

Download
memory/2624-130-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3020-138-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3672-134-0x0000000000000000-mapping.dmp

Download
memory/4056-132-0x0000000000000000-mapping.dmp

Download
memory/4676-131-0x0000000000000000-mapping.dmp

Download
memory/4764-139-0x0000000000000000-mapping.dmp

Download
memory/4764-140-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4764-144-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4764-145-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4888-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads