tofsee | 2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b

General

Target

2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe
Size

143KB
MD5

dd7f8116f16c8e53b2c25def6db171c9
SHA1

7490dc96c28d8ef777bfa834576a0121c14525cb
SHA256

2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b
SHA512

6b45456f69753baf62834984ccc9ac2a48c7878e22ef805c93263463d6e73caffcde34aa338a655925d490a4c62395124e2a208ff288e7fd9ec2b28e2511a88f

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:

pscipatj.exe

pid process

1656 pscipatj.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

388 netsh.exe

pid	process
1656	pscipatj.exe

pid	process
388	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\tiubtelo\ImagePath = "C:\\Windows\\SysWOW64\\tiubtelo\\pscipatj.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:

2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

pscipatj.exe

description pid process target process

PID 1656 set thread context of 4920 1656 pscipatj.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

4732 sc.exe
2028 sc.exe
4812 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 1656 set thread context of 4920	1656	pscipatj.exe	svchost.exe

pid	process
4732	sc.exe
2028	sc.exe
4812	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exepscipatj.exe

description	pid	process	target process
PID 936 wrote to memory of 3180	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 3180	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 3180	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 3760	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 3760	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 3760	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	cmd.exe
PID 936 wrote to memory of 4732	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 4732	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 4732	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 2028	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 2028	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 2028	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 4812	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 4812	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 4812	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	sc.exe
PID 936 wrote to memory of 388	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	netsh.exe
PID 936 wrote to memory of 388	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	netsh.exe
PID 936 wrote to memory of 388	936	2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe	netsh.exe
PID 1656 wrote to memory of 4920	1656	pscipatj.exe	svchost.exe
PID 1656 wrote to memory of 4920	1656	pscipatj.exe	svchost.exe
PID 1656 wrote to memory of 4920	1656	pscipatj.exe	svchost.exe
PID 1656 wrote to memory of 4920	1656	pscipatj.exe	svchost.exe
PID 1656 wrote to memory of 4920	1656	pscipatj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe
"C:\Users\Admin\AppData\Local\Temp\2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tiubtelo\
2⤵
PID:3180

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pscipatj.exe" C:\Windows\SysWOW64\tiubtelo\
2⤵
PID:3760

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tiubtelo binPath= "C:\Windows\SysWOW64\tiubtelo\pscipatj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4732

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tiubtelo "wifi internet conection"
2⤵
- Launches sc.exe
PID:2028

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tiubtelo
2⤵
- Launches sc.exe
PID:4812

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:388

C:\Windows\SysWOW64\tiubtelo\pscipatj.exe
C:\Windows\SysWOW64\tiubtelo\pscipatj.exe /d"C:\Users\Admin\AppData\Local\Temp\2897e555be336cb52bf83da45ca4cf28ec455f06ad960bb41b1b08bfcc80d74b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1656

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:4920

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\pscipatj.exe
Filesize
14.3MB

MD5
2243c08fac784b06d6f93617d2d81d20

SHA1
353d99aa38275f2af610b115fc20493c206b858b

SHA256
7f2e3d561da90cc12dafcb41aa81cb272edc12ca3e29d120875ca259663220fc

SHA512
306a550ad8fd972124857082f6e0b0d6da5cdf2fd942ff4ad097bfd5c82c0deb9dd0f8fdc28eaa0a6fe432378725bbb4430de962584e2d8378ae654ec3a4a66d

Download Submit
C:\Windows\SysWOW64\tiubtelo\pscipatj.exe
Filesize
14.3MB

MD5
2243c08fac784b06d6f93617d2d81d20

SHA1
353d99aa38275f2af610b115fc20493c206b858b

SHA256
7f2e3d561da90cc12dafcb41aa81cb272edc12ca3e29d120875ca259663220fc

SHA512
306a550ad8fd972124857082f6e0b0d6da5cdf2fd942ff4ad097bfd5c82c0deb9dd0f8fdc28eaa0a6fe432378725bbb4430de962584e2d8378ae654ec3a4a66d

Download Submit
memory/388-138-0x0000000000000000-mapping.dmp

Download
memory/936-130-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1656-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2028-135-0x0000000000000000-mapping.dmp

Download
memory/3180-131-0x0000000000000000-mapping.dmp

Download
memory/3760-132-0x0000000000000000-mapping.dmp

Download
memory/4732-134-0x0000000000000000-mapping.dmp

Download
memory/4812-136-0x0000000000000000-mapping.dmp

Download
memory/4920-140-0x0000000000000000-mapping.dmp

Download
memory/4920-141-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4920-144-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4920-145-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads