tofsee | 1cb4511945d33d1414e7edf75f28952256df660a4d70e5599d8d0c653a9c44fc

General

Target

f27e816769871147e4862997714586f5_JaffaCakes118.exe
Size

12.7MB
MD5

f27e816769871147e4862997714586f5
SHA1

6bc7cbca3c705c9da9890a8f4f5d22d273c1105a
SHA256

1cb4511945d33d1414e7edf75f28952256df660a4d70e5599d8d0c653a9c44fc
SHA512

710979b0bbb44401ae36b4f37d62257c5616317e6a9c66b797f10dc2b7e4f02e39a36cbd54134933c8bf6c528d79926041c66cd418d27b1ed60a9c4e35af364c
SSDEEP

24576:qTmCUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUg:9

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\efwizmqw = "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

2852 netsh.exe

pid	process
2852	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\efwizmqw\ImagePath = "C:\\Windows\\SysWOW64\\efwizmqw\\kmfqxftj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2388 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kmfqxftj.exe

pid process

2552 kmfqxftj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kmfqxftj.exe

description pid process target process

PID 2552 set thread context of 2388 2552 kmfqxftj.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

2896 sc.exe
2536 sc.exe
2644 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2388	svchost.exe

pid	process
2552	kmfqxftj.exe

description	pid	process	target process
PID 2552 set thread context of 2388	2552	kmfqxftj.exe	svchost.exe

pid	process
2896	sc.exe
2536	sc.exe
2644	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f27e816769871147e4862997714586f5_JaffaCakes118.exekmfqxftj.exe

description	pid	process	target process
PID 2248 wrote to memory of 2240	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2240	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2240	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2240	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2076	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2076	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2076	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2076	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2536	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2536	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2536	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2536	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2644	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2644	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2644	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2644	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2896	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2896	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2896	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2896	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2852	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2852	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2852	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2852	2248	f27e816769871147e4862997714586f5_JaffaCakes118.exe	netsh.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe
PID 2552 wrote to memory of 2388	2552	kmfqxftj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2248

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\efwizmqw\
2⤵
PID:2240

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmfqxftj.exe" C:\Windows\SysWOW64\efwizmqw\
2⤵
PID:2076

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create efwizmqw binPath= "C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe /d\"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description efwizmqw "wifi internet conection"
2⤵
- Launches sc.exe
PID:2644

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start efwizmqw
2⤵
- Launches sc.exe
PID:2896

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:2852

C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe
C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe /d"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2552

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2388

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

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Downloads

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

Filesize
11.5MB

MD5
18b0b5022e8d46dfaf4e3ca2cfe38cf9

SHA1
68352345d0d5fcb6f88ab55f466a09af64f070d7

SHA256
82c3601dd9c525a0b07a0417d2169dd7c790d03793b5bba5c8d2312ba6323514

SHA512
1df492259bbc71964f9adcc0227023106b7870431aaa098a889b3ca68c05dd8c50e3c03e5562678705a8da1f20b6caa8f96be90e49fa429785dd26c6d87f1c18

Download Submit
memory/2248-1-0x00000000041D0000-0x00000000042D0000-memory.dmp

Filesize
1024KB

Download
memory/2248-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2248-6-0x0000000000400000-0x00000000040F8000-memory.dmp

Filesize
61.0MB

Download
memory/2388-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2552-8-0x00000000041B0000-0x00000000042B0000-memory.dmp

Filesize
1024KB

Download
memory/2552-14-0x0000000000400000-0x00000000040F8000-memory.dmp

Filesize
61.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads