tofsee | 28485c139a6355cb8429d01defe5cb89e8c0c8bfc1ad5f5520341812478000b1

General

Target

78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe
Size

154KB
MD5

5e867ae4a78726523d91eaea386fce6d
SHA1

c9ee64774b15ada9cbd52f88bb47057647978fac
SHA256

78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d
SHA512

74d7fbb706839e32432abb761dbb02dd0e3d85e8f2f22412549d379f42027a99c4af39febb448b150e6d701d25fab4be698eb9439bcb5a247659dbf888bbb344
SSDEEP

1536:n9Hnxm+W0eDrB6CjnMQSoWp0MYS3+MpHiCUywyJqbgoVtcdnA+QA5Hs5W0+MWVO4:npQDBDjnLSZp3+6iCUyw6oVtrA5He1

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
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2264 netsh.exe

pid	process
2264	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\ulqpmrot\ImagePath = "C:\\Windows\\SysWOW64\\ulqpmrot\\xswybkjv.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:

78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe

Executes dropped EXE 1 IoCs

Processes:

xswybkjv.exe

pid process

5048 xswybkjv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xswybkjv.exe

description pid process target process

PID 5048 set thread context of 4788 5048 xswybkjv.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

2416 sc.exe
4428 sc.exe
1972 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
5048	xswybkjv.exe

description	pid	process	target process
PID 5048 set thread context of 4788	5048	xswybkjv.exe	svchost.exe

pid	process
2416	sc.exe
4428	sc.exe
1972	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exexswybkjv.exe

description	pid	process	target process
PID 3744 wrote to memory of 1256	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 1256	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 1256	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 1040	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 1040	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 1040	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	cmd.exe
PID 3744 wrote to memory of 2416	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 2416	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 2416	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 4428	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 4428	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 4428	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 1972	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 1972	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 1972	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	sc.exe
PID 3744 wrote to memory of 2264	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	netsh.exe
PID 3744 wrote to memory of 2264	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	netsh.exe
PID 3744 wrote to memory of 2264	3744	78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe	netsh.exe
PID 5048 wrote to memory of 4788	5048	xswybkjv.exe	svchost.exe
PID 5048 wrote to memory of 4788	5048	xswybkjv.exe	svchost.exe
PID 5048 wrote to memory of 4788	5048	xswybkjv.exe	svchost.exe
PID 5048 wrote to memory of 4788	5048	xswybkjv.exe	svchost.exe
PID 5048 wrote to memory of 4788	5048	xswybkjv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe
"C:\Users\Admin\AppData\Local\Temp\78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ulqpmrot\
2⤵
PID:1256

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xswybkjv.exe" C:\Windows\SysWOW64\ulqpmrot\
2⤵
PID:1040

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ulqpmrot binPath= "C:\Windows\SysWOW64\ulqpmrot\xswybkjv.exe /d\"C:\Users\Admin\AppData\Local\Temp\78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2416

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ulqpmrot "wifi internet conection"
2⤵
- Launches sc.exe
PID:4428

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ulqpmrot
2⤵
- Launches sc.exe
PID:1972

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:2264

C:\Windows\SysWOW64\ulqpmrot\xswybkjv.exe
C:\Windows\SysWOW64\ulqpmrot\xswybkjv.exe /d"C:\Users\Admin\AppData\Local\Temp\78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5048

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:4788

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\xswybkjv.exe
Filesize
14.8MB

MD5
d876203711e4bf7559fd2a2840cc171e

SHA1
3c17b82d4c145d2b26e413b379d4afd53d804b0d

SHA256
6d5cc11b290c926e146319914d05176dde277909853454e6806333d5bbf83b60

SHA512
c91657fff5dd6aea0b7ab9e7d2e4e8f1baca56c71f805b2ca0a0755921787ef9df4389724e38ebfa7c3cc8d0de9b82404c6307e26a675fb9e11a75a566f2f8c7

Download Submit
C:\Windows\SysWOW64\ulqpmrot\xswybkjv.exe
Filesize
14.8MB

MD5
d876203711e4bf7559fd2a2840cc171e

SHA1
3c17b82d4c145d2b26e413b379d4afd53d804b0d

SHA256
6d5cc11b290c926e146319914d05176dde277909853454e6806333d5bbf83b60

SHA512
c91657fff5dd6aea0b7ab9e7d2e4e8f1baca56c71f805b2ca0a0755921787ef9df4389724e38ebfa7c3cc8d0de9b82404c6307e26a675fb9e11a75a566f2f8c7

Download Submit
memory/3744-139-0x000000005F000000-0x000000005F011000-memory.dmp

Filesize
68KB

Download
memory/3744-136-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/3744-138-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3744-135-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/3744-133-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4788-142-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4788-147-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4788-148-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4788-149-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4788-150-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/5048-141-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/5048-144-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads