tofsee | d14d3e5af0dd958586eebcfbf7b085c2ced151b2fc190d2d3d3703d032b45019

General

Target

ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
Size

11.6MB
MD5

ff34e4dde4edddb6811d5823ad8d1ff6
SHA1

05e5557df156f030b9203c0f60cf946b74633c68
SHA256

d14d3e5af0dd958586eebcfbf7b085c2ced151b2fc190d2d3d3703d032b45019
SHA512

33e9770eff700d8544959c2d1caf171e37ac6f69ca9fffb066ec789cc8f2acff602607c692d1acca47d90881223544fb22b6f11aba51213eaeaf071f4582a729
SSDEEP

49152:kBvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvn:k

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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

3132 netsh.exe

pid	process
3132	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\wobjkrrt\ImagePath = "C:\\Windows\\SysWOW64\\wobjkrrt\\gygvdbfd.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:

ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4288 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

gygvdbfd.exe

pid process

4868 gygvdbfd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gygvdbfd.exe

description pid process target process

PID 4868 set thread context of 4288 4868 gygvdbfd.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

3372 sc.exe
2504 sc.exe
2844 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

4448 4884 WerFault.exe ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
1944 4868 WerFault.exe gygvdbfd.exe

pid	process
4288	svchost.exe

pid	process
4868	gygvdbfd.exe

description	pid	process	target process
PID 4868 set thread context of 4288	4868	gygvdbfd.exe	svchost.exe

pid	process
3372	sc.exe
2504	sc.exe
2844	sc.exe

pid	pid_target	process	target process
4448	4884	WerFault.exe	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
1944	4868	WerFault.exe	gygvdbfd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exegygvdbfd.exe

description	pid	process	target process
PID 4884 wrote to memory of 4324	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 4324	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 4324	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 2920	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 2920	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 2920	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 4884 wrote to memory of 3372	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 3372	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 3372	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2504	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2504	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2504	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2844	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2844	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 2844	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 3132	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 4884 wrote to memory of 3132	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 4884 wrote to memory of 3132	4884	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 4868 wrote to memory of 4288	4868	gygvdbfd.exe	svchost.exe
PID 4868 wrote to memory of 4288	4868	gygvdbfd.exe	svchost.exe
PID 4868 wrote to memory of 4288	4868	gygvdbfd.exe	svchost.exe
PID 4868 wrote to memory of 4288	4868	gygvdbfd.exe	svchost.exe
PID 4868 wrote to memory of 4288	4868	gygvdbfd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4884

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wobjkrrt\
2⤵
PID:4324

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gygvdbfd.exe" C:\Windows\SysWOW64\wobjkrrt\
2⤵
PID:2920

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wobjkrrt binPath= "C:\Windows\SysWOW64\wobjkrrt\gygvdbfd.exe /d\"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3372

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wobjkrrt "wifi internet conection"
2⤵
- Launches sc.exe
PID:2504

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wobjkrrt
2⤵
- Launches sc.exe
PID:2844

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:3132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 1224
2⤵
- Program crash
PID:4448

C:\Windows\SysWOW64\wobjkrrt\gygvdbfd.exe
C:\Windows\SysWOW64\wobjkrrt\gygvdbfd.exe /d"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4868

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 536
2⤵
- Program crash
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4884 -ip 4884
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4868 -ip 4868
1⤵
PID:4888

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\gygvdbfd.exe

Filesize
13.1MB

MD5
7ed1afd314d2bde2d04b388f39d66880

SHA1
b1040f8dae8061515a44a67c73e93481e1922243

SHA256
5521cbd4b9d72b20e2404eeb4ccfc64b60d7bf715e04aea888c9c97b16366c41

SHA512
7e6f267991c15dfc41dfeaf8957a63649991365ae7304e4cc30399061ebf59f3ce2f92db3284de5b33a735bd59de95302b54ef3a8188d4b1fa107e57f78aceed

Download Submit
memory/4288-10-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4288-15-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4288-16-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4288-18-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4868-11-0x0000000000D50000-0x0000000000E50000-memory.dmp

Filesize
1024KB

Download
memory/4868-13-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/4868-17-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/4884-4-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/4884-2-0x0000000000DB0000-0x0000000000DC3000-memory.dmp

Filesize
76KB

Download
memory/4884-7-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/4884-8-0x0000000000DB0000-0x0000000000DC3000-memory.dmp

Filesize
76KB

Download
memory/4884-1-0x0000000000E50000-0x0000000000F50000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads