tofsee | f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07

General

Target

f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe
Size

14.5MB
MD5

f22195b83a3c4e02677a69e80c8b66fe
SHA1

22bb4f0bb5e5a74919c826951f6452379b5ab270
SHA256

f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07
SHA512

93e9675c2f83bac2d27bb7df7c02e95208cddf763b020ee4c7655a79eff1b77b2afd7c6d695df66b429c429f03d1154bc6fdf0d0775b8c9144b4d271f8027c41
SSDEEP

6144:X5VCb4QuzF5pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz:J8NKF5p

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

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\cvuxicpu = "0"	svchost.exe

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

2372 netsh.exe

pid	process
2372	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\cvuxicpu\ImagePath = "C:\\Windows\\SysWOW64\\cvuxicpu\\gbifebxy.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2856 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

gbifebxy.exe

pid process

1972 gbifebxy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gbifebxy.exe

description pid process target process

PID 1972 set thread context of 2856 1972 gbifebxy.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

2524 sc.exe
2740 sc.exe
2092 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2856	svchost.exe

pid	process
1972	gbifebxy.exe

description	pid	process	target process
PID 1972 set thread context of 2856	1972	gbifebxy.exe	svchost.exe

pid	process
2524	sc.exe
2740	sc.exe
2092	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exegbifebxy.exe

description	pid	process	target process
PID 3032 wrote to memory of 2556	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2556	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2556	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2556	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2944	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2944	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2944	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2944	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3032 wrote to memory of 2524	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2524	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2524	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2524	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2740	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2740	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2740	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2740	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2092	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2092	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2092	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3032 wrote to memory of 2092	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 1972 wrote to memory of 2856	1972	gbifebxy.exe	svchost.exe
PID 3032 wrote to memory of 2372	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 3032 wrote to memory of 2372	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 3032 wrote to memory of 2372	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 3032 wrote to memory of 2372	3032	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3032

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cvuxicpu\
2⤵
PID:2556

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gbifebxy.exe" C:\Windows\SysWOW64\cvuxicpu\
2⤵
PID:2944

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cvuxicpu binPath= "C:\Windows\SysWOW64\cvuxicpu\gbifebxy.exe /d\"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2524

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cvuxicpu "wifi internet conection"
2⤵
- Launches sc.exe
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cvuxicpu
2⤵
- Launches sc.exe
PID:2092

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:2372

C:\Windows\SysWOW64\cvuxicpu\gbifebxy.exe
C:\Windows\SysWOW64\cvuxicpu\gbifebxy.exe /d"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2856

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\gbifebxy.exe
Filesize
14.2MB

MD5
4755e8e30b2269e8d7a6b70dfdab89b3

SHA1
1ac158790a6426340f66cd81351f17b8c7bf50ed

SHA256
b86a29650102f586563de53a832fe5b800e64d7cb5f4eb1b4a757738933ca003

SHA512
a567aa262ee65c3aa243551f8c05bb7a6b1b442fd1f98c62e029c3ec0d1619e7e55627d9c58d66de73f1489c419064b1e354228297a022a76f7a1ce5b9462b6e

Download Submit
memory/2856-3-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads