tofsee | 201e645c51aa9590e145a8de697e2b8f069c0962381e490a3b740a0af365c2ea

General

Target

fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe
Size

10.6MB
MD5

fa1d3a7e6a5aac89ee6af04cc2cf067c
SHA1

7fe48b6e2bb3b3ddc2f4ca7a84addf9c63b6af05
SHA256

201e645c51aa9590e145a8de697e2b8f069c0962381e490a3b740a0af365c2ea
SHA512

9456f450993ae25e005e727f7da536db68f19f175bc38e63c88d771e9c1b2cd385a78b54fa480faecb0e7d739103c366d7ed8d9c63a04e2c9993a0f4cb96665b
SSDEEP

98304:ANWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllr:2W

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

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2024 netsh.exe

pid	process
2024	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\uerbhmxh\ImagePath = "C:\\Windows\\SysWOW64\\uerbhmxh\\otdysebd.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:

fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Control Panel\International\Geo\Nation	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

836 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

otdysebd.exe

pid process

4020 otdysebd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

otdysebd.exe

description pid process target process

PID 4020 set thread context of 836 4020 otdysebd.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

1608 sc.exe
3876 sc.exe
3084 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
836	svchost.exe

pid	process
4020	otdysebd.exe

description	pid	process	target process
PID 4020 set thread context of 836	4020	otdysebd.exe	svchost.exe

pid	process
1608	sc.exe
3876	sc.exe
3084	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exeotdysebd.exe

description	pid	process	target process
PID 3328 wrote to memory of 3652	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 3652	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 3652	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 5100	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 5100	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 5100	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	cmd.exe
PID 3328 wrote to memory of 1608	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 1608	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 1608	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3876	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3876	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3876	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3084	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3084	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 3084	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	sc.exe
PID 3328 wrote to memory of 2024	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	netsh.exe
PID 3328 wrote to memory of 2024	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	netsh.exe
PID 3328 wrote to memory of 2024	3328	fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe	netsh.exe
PID 4020 wrote to memory of 836	4020	otdysebd.exe	svchost.exe
PID 4020 wrote to memory of 836	4020	otdysebd.exe	svchost.exe
PID 4020 wrote to memory of 836	4020	otdysebd.exe	svchost.exe
PID 4020 wrote to memory of 836	4020	otdysebd.exe	svchost.exe
PID 4020 wrote to memory of 836	4020	otdysebd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3328

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uerbhmxh\
2⤵
PID:3652

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otdysebd.exe" C:\Windows\SysWOW64\uerbhmxh\
2⤵
PID:5100

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create uerbhmxh binPath= "C:\Windows\SysWOW64\uerbhmxh\otdysebd.exe /d\"C:\Users\Admin\AppData\Local\Temp\fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1608

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description uerbhmxh "wifi internet conection"
2⤵
- Launches sc.exe
PID:3876

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start uerbhmxh
2⤵
- Launches sc.exe
PID:3084

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:2024

C:\Windows\SysWOW64\uerbhmxh\otdysebd.exe
C:\Windows\SysWOW64\uerbhmxh\otdysebd.exe /d"C:\Users\Admin\AppData\Local\Temp\fa1d3a7e6a5aac89ee6af04cc2cf067c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4020

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.0MB

MD5
087f45239f498008cfef3bdc7553d6b9

SHA1
552f112064aa9e942bfa5933f02de3afad038af1

SHA256
1184dd540f81b3b0250eea6d1a4a0ed72c6dc37590b3769108bab7682705ef25

SHA512
ef7f3cf5664c6081e0580d39f2b0d0e2d05c1cdf359c549d85b147b9b7854d7dbcfdff564ea5214db74e4ec72ff88a0a5df942253b7d82b75f6256cdcb103d73

Download Submit
memory/836-18-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/836-12-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/836-16-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/836-21-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/836-19-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/3328-2-0x0000000005420000-0x0000000005433000-memory.dmp

Filesize
76KB

Download
memory/3328-4-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/3328-7-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/3328-9-0x0000000005420000-0x0000000005433000-memory.dmp

Filesize
76KB

Download
memory/3328-1-0x0000000003A80000-0x0000000003B80000-memory.dmp

Filesize
1024KB

Download
memory/4020-11-0x0000000003900000-0x0000000003A00000-memory.dmp

Filesize
1024KB

Download
memory/4020-15-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/4020-20-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/4020-17-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads