tofsee | be08b1f6756d1985393042730c68972c4e144c7af06c20910b73ac43cea1f38d

General

Target

fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe
Size

12.3MB
MD5

fa2cfe80ce726ca4c7c3ed8013a39903
SHA1

f185e4e2c7b0752c38db7f6082142716b886c449
SHA256

be08b1f6756d1985393042730c68972c4e144c7af06c20910b73ac43cea1f38d
SHA512

434b1a78e04bd240548d8bc5c6cd63b5992dcbb08f026b3b8a59e81c8c005e34a2b03aac7bc096270a170c68f83871cc8cf3c87297c4d0cf0916e57d6b0de9bc
SSDEEP

24576:BerU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb3:BsW

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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\esstttbz = "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

2988 netsh.exe

pid	process
2988	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\esstttbz\ImagePath = "C:\\Windows\\SysWOW64\\esstttbz\\ohzvtes.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2424 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ohzvtes.exe

pid process

2868 ohzvtes.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ohzvtes.exe

description pid process target process

PID 2868 set thread context of 2424 2868 ohzvtes.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

2548 sc.exe
2528 sc.exe
2684 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2424	svchost.exe

pid	process
2868	ohzvtes.exe

description	pid	process	target process
PID 2868 set thread context of 2424	2868	ohzvtes.exe	svchost.exe

pid	process
2548	sc.exe
2528	sc.exe
2684	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exeohzvtes.exe

description	pid	process	target process
PID 2080 wrote to memory of 2064	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2064	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2064	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2064	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2536	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2536	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2536	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2536	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	cmd.exe
PID 2080 wrote to memory of 2548	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2548	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2548	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2548	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2528	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2528	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2528	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2528	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2684	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2684	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2684	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2684	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	sc.exe
PID 2080 wrote to memory of 2988	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	netsh.exe
PID 2080 wrote to memory of 2988	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	netsh.exe
PID 2080 wrote to memory of 2988	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	netsh.exe
PID 2080 wrote to memory of 2988	2080	fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe	netsh.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe
PID 2868 wrote to memory of 2424	2868	ohzvtes.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2080

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\esstttbz\
2⤵
PID:2064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohzvtes.exe" C:\Windows\SysWOW64\esstttbz\
2⤵
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create esstttbz binPath= "C:\Windows\SysWOW64\esstttbz\ohzvtes.exe /d\"C:\Users\Admin\AppData\Local\Temp\fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2548

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description esstttbz "wifi internet conection"
2⤵
- Launches sc.exe
PID:2528

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start esstttbz
2⤵
- Launches sc.exe
PID:2684

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:2988

C:\Windows\SysWOW64\esstttbz\ohzvtes.exe
C:\Windows\SysWOW64\esstttbz\ohzvtes.exe /d"C:\Users\Admin\AppData\Local\Temp\fa2cfe80ce726ca4c7c3ed8013a39903_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2868

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2424

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\ohzvtes.exe
Filesize
15.0MB

MD5
4f2628986b00bf328d371e38ddfd6a9a

SHA1
d5d74da6c103edf9a228b361281ce4755e475c5c

SHA256
4a38d999c5cbb9ac4108f08b197488cf4e7644a056da098c98eee72849713c97

SHA512
8789359b723df709572106412664242610f57dc3c1948ba5eb3e58ad0974c50508721ff908394d8c941ff85f64e900eb50061316ccd7a3c583b37aba646834ab

Download Submit
memory/2080-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2080-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2080-3-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2080-8-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2080-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2424-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-11-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-10-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2868-17-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads