tofsee | 57c5476b2f41ec87a6b74153c52b442d47172ad8f59a578e4ac6e902dec3be3f

General

Target

fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe
Size

10.4MB
MD5

fc3bb27a0cf68b519a1ff98126da4083
SHA1

d52434e6d7326478e4d2931b379ed30c31ead569
SHA256

57c5476b2f41ec87a6b74153c52b442d47172ad8f59a578e4ac6e902dec3be3f
SHA512

8fded19f127deaa5d52d8c88b89009ebf1626ada44556fcc50e9cd048c399c31d89668232db2790afbbbf0072cb5806a7f00e92391c0815f39211cbf9c7ffcdc
SSDEEP

3072:EOsUA8KZQ/IxsPVg4nkvzaHWgSjqdF0w2Uyopz9ZeCqJXXfehv1Ijoxw9xkaaaaK:eUA8GV2e4nYWHEjqPt9cCqxmhv1pxQ

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
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

3224 netsh.exe

pid	process
3224	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\ihgfixig\ImagePath = "C:\\Windows\\SysWOW64\\ihgfixig\\pwzxyyoc.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:

fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3968 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pwzxyyoc.exe

pid process

3804 pwzxyyoc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pwzxyyoc.exe

description pid process target process

PID 3804 set thread context of 3968 3804 pwzxyyoc.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

4380 sc.exe
4476 sc.exe
4984 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

5056 4876 WerFault.exe fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe
1792 3804 WerFault.exe pwzxyyoc.exe

pid	process
3968	svchost.exe

pid	process
3804	pwzxyyoc.exe

description	pid	process	target process
PID 3804 set thread context of 3968	3804	pwzxyyoc.exe	svchost.exe

pid	process
4380	sc.exe
4476	sc.exe
4984	sc.exe

pid	pid_target	process	target process
5056	4876	WerFault.exe	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe
1792	3804	WerFault.exe	pwzxyyoc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exepwzxyyoc.exe

description	pid	process	target process
PID 4876 wrote to memory of 1476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1576	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1576	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1576	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 4380	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4380	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4380	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4476	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4984	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4984	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 4984	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	sc.exe
PID 4876 wrote to memory of 3224	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	netsh.exe
PID 4876 wrote to memory of 3224	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	netsh.exe
PID 4876 wrote to memory of 3224	4876	fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe	netsh.exe
PID 3804 wrote to memory of 3968	3804	pwzxyyoc.exe	svchost.exe
PID 3804 wrote to memory of 3968	3804	pwzxyyoc.exe	svchost.exe
PID 3804 wrote to memory of 3968	3804	pwzxyyoc.exe	svchost.exe
PID 3804 wrote to memory of 3968	3804	pwzxyyoc.exe	svchost.exe
PID 3804 wrote to memory of 3968	3804	pwzxyyoc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4876

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ihgfixig\
2⤵
PID:1476

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwzxyyoc.exe" C:\Windows\SysWOW64\ihgfixig\
2⤵
PID:1576

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ihgfixig binPath= "C:\Windows\SysWOW64\ihgfixig\pwzxyyoc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4380

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ihgfixig "wifi internet conection"
2⤵
- Launches sc.exe
PID:4476

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ihgfixig
2⤵
- Launches sc.exe
PID:4984

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:3224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 896
2⤵
- Program crash
PID:5056

C:\Windows\SysWOW64\ihgfixig\pwzxyyoc.exe
C:\Windows\SysWOW64\ihgfixig\pwzxyyoc.exe /d"C:\Users\Admin\AppData\Local\Temp\fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3804

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 516
2⤵
- Program crash
PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4876 -ip 4876
1⤵
PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3804 -ip 3804
1⤵
PID:4728

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\pwzxyyoc.exe
Filesize
14.1MB

MD5
92efd667d500a602051a89f3984f0df4

SHA1
afcfc420ed9aac73a4b4369f093a8e71c34b88e6

SHA256
159149841d344fcc07e2ecd3083ee61f6eb0dc07c0d3901aab7ac5ca465dd0a8

SHA512
5ab2d8015bcf5167edcd8f86437a25a2ba229b8c591eb88e02603a50882b9d799d73bfebc2d3fd82f749b3d28ff25ca0400eebbfcba662e2567651e361270589

Download Submit
memory/3804-10-0x0000000000BF0000-0x0000000000CF0000-memory.dmp

Filesize
1024KB

Download
memory/3804-12-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3804-18-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3968-11-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/3968-15-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/3968-17-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/3968-19-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/4876-4-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/4876-2-0x00000000008E0000-0x00000000008F3000-memory.dmp

Filesize
76KB

Download
memory/4876-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/4876-9-0x00000000008E0000-0x00000000008F3000-memory.dmp

Filesize
76KB

Download
memory/4876-1-0x0000000000980000-0x0000000000A80000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads