tofsee | db29532b00f98cfbaf582b34fdf5725ffe0db23a1b0dc6c8aabcf947bd4c1fbe

General

Target

ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe
Size

14.9MB
MD5

ff4f7325080218c8d7dc46bb6bc646f0
SHA1

85d94a850a8521727e3e0141cbd96770f486f195
SHA256

db29532b00f98cfbaf582b34fdf5725ffe0db23a1b0dc6c8aabcf947bd4c1fbe
SHA512

c7029c15430f0d9b3f9d9b7f2652f7f21d52a1454386cba515b933745b69749d6d80664ea0de9846c89c15b1568aafbef408c53183b67caab3863eb693aa6a30
SSDEEP

98304:djhd88888888888888888888888888888888888888888888888888888888888X:d

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

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

724 netsh.exe

pid	process
724	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\euaafiiy\ImagePath = "C:\\Windows\\SysWOW64\\euaafiiy\\dccjawza.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:

ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4416 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

dccjawza.exe

pid process

4380 dccjawza.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

dccjawza.exe

description pid process target process

PID 4380 set thread context of 4416 4380 dccjawza.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

4256 sc.exe
4864 sc.exe
1884 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

1136 3524 WerFault.exe ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe
2644 4380 WerFault.exe dccjawza.exe

pid	process
4416	svchost.exe

pid	process
4380	dccjawza.exe

description	pid	process	target process
PID 4380 set thread context of 4416	4380	dccjawza.exe	svchost.exe

pid	process
4256	sc.exe
4864	sc.exe
1884	sc.exe

pid	pid_target	process	target process
1136	3524	WerFault.exe	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe
2644	4380	WerFault.exe	dccjawza.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exedccjawza.exe

description	pid	process	target process
PID 3524 wrote to memory of 3084	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 3084	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 3084	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 5008	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 5008	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 5008	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	cmd.exe
PID 3524 wrote to memory of 4256	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 4256	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 4256	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 4864	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 4864	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 4864	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 1884	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 1884	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 1884	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	sc.exe
PID 3524 wrote to memory of 724	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	netsh.exe
PID 3524 wrote to memory of 724	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	netsh.exe
PID 3524 wrote to memory of 724	3524	ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe	netsh.exe
PID 4380 wrote to memory of 4416	4380	dccjawza.exe	svchost.exe
PID 4380 wrote to memory of 4416	4380	dccjawza.exe	svchost.exe
PID 4380 wrote to memory of 4416	4380	dccjawza.exe	svchost.exe
PID 4380 wrote to memory of 4416	4380	dccjawza.exe	svchost.exe
PID 4380 wrote to memory of 4416	4380	dccjawza.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\euaafiiy\
2⤵
PID:3084

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dccjawza.exe" C:\Windows\SysWOW64\euaafiiy\
2⤵
PID:5008

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create euaafiiy binPath= "C:\Windows\SysWOW64\euaafiiy\dccjawza.exe /d\"C:\Users\Admin\AppData\Local\Temp\ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4256

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description euaafiiy "wifi internet conection"
2⤵
- Launches sc.exe
PID:4864

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start euaafiiy
2⤵
- Launches sc.exe
PID:1884

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:724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 1204
2⤵
- Program crash
PID:1136

C:\Windows\SysWOW64\euaafiiy\dccjawza.exe
C:\Windows\SysWOW64\euaafiiy\dccjawza.exe /d"C:\Users\Admin\AppData\Local\Temp\ff4f7325080218c8d7dc46bb6bc646f0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4380

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 512
2⤵
- Program crash
PID:2644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3524 -ip 3524
1⤵
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4380 -ip 4380
1⤵
PID:4196

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\dccjawza.exe
Filesize
14.3MB

MD5
bcf1f6caf4c87c66fffa036844534ee4

SHA1
2d91e89a3147c522febd63c8d84a5557f14979ea

SHA256
628ca331719323530038aaf4152484221e7122f43a5240676737c7510803b836

SHA512
711e2a1cbb2b4afd2d7832b6186f90f23a4f46117ebbd897a7e17446f5288dc08f0d9915b42d9eb30b977f2c162d97a3f614c927e925cf9313352fe7732411e1

Download Submit
memory/3524-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/3524-2-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/3524-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3524-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3524-8-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/4380-11-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/4380-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4416-10-0x0000000000470000-0x0000000000485000-memory.dmp

Filesize
84KB

Download
memory/4416-15-0x0000000000470000-0x0000000000485000-memory.dmp

Filesize
84KB

Download
memory/4416-16-0x0000000000470000-0x0000000000485000-memory.dmp

Filesize
84KB

Download
memory/4416-18-0x0000000000470000-0x0000000000485000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads