tofsee | cec80312cba875be63e11a1b05c73baa7baf1328c929749c8bea4dccf64c2259

General

Target

ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe
Size

12.7MB
MD5

ffb0772aa20b058225e62bd6036b72d6
SHA1

fc0a2feb39f678670ebfeed703d768f334a5865c
SHA256

cec80312cba875be63e11a1b05c73baa7baf1328c929749c8bea4dccf64c2259
SHA512

d32e0e75b3dde06bfe237cce0125b42fec82a4fc24a310052cf5dbec69e80853a7a2e4d1e29934ba6bfa17a62a884630d5cdb3661f5307f6058062ae4495b302
SSDEEP

24576:FjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBj:Fnh

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

1624 netsh.exe

pid	process
1624	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\egidwiuw\ImagePath = "C:\\Windows\\SysWOW64\\egidwiuw\\gbqafkca.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:

ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

gbqafkca.exe

pid process

4088 gbqafkca.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gbqafkca.exe

description pid process target process

PID 4088 set thread context of 3028 4088 gbqafkca.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

1524 sc.exe
700 sc.exe
3532 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4088	gbqafkca.exe

description	pid	process	target process
PID 4088 set thread context of 3028	4088	gbqafkca.exe	svchost.exe

pid	process
1524	sc.exe
700	sc.exe
3532	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exegbqafkca.exe

description	pid	process	target process
PID 3004 wrote to memory of 4972	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 4972	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 4972	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 4956	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 4956	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 4956	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	cmd.exe
PID 3004 wrote to memory of 1524	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 1524	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 1524	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 700	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 700	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 700	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 3532	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 3532	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 3532	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	sc.exe
PID 3004 wrote to memory of 1624	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	netsh.exe
PID 3004 wrote to memory of 1624	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	netsh.exe
PID 3004 wrote to memory of 1624	3004	ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe	netsh.exe
PID 4088 wrote to memory of 3028	4088	gbqafkca.exe	svchost.exe
PID 4088 wrote to memory of 3028	4088	gbqafkca.exe	svchost.exe
PID 4088 wrote to memory of 3028	4088	gbqafkca.exe	svchost.exe
PID 4088 wrote to memory of 3028	4088	gbqafkca.exe	svchost.exe
PID 4088 wrote to memory of 3028	4088	gbqafkca.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3004

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\egidwiuw\
2⤵
PID:4972

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gbqafkca.exe" C:\Windows\SysWOW64\egidwiuw\
2⤵
PID:4956

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create egidwiuw binPath= "C:\Windows\SysWOW64\egidwiuw\gbqafkca.exe /d\"C:\Users\Admin\AppData\Local\Temp\ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1524

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description egidwiuw "wifi internet conection"
2⤵
- Launches sc.exe
PID:700

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start egidwiuw
2⤵
- Launches sc.exe
PID:3532

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:1624

C:\Windows\SysWOW64\egidwiuw\gbqafkca.exe
C:\Windows\SysWOW64\egidwiuw\gbqafkca.exe /d"C:\Users\Admin\AppData\Local\Temp\ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4088

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:3028

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\gbqafkca.exe
Filesize
10.3MB

MD5
fbd23f5646283d2f23c741ac091f6126

SHA1
b435f314cafdac2d4ce6a588e53ba8c6d4871d07

SHA256
f27313f2924bbb8cc7c18b0b75a3444cafe27f3f843d3a23479689245909447a

SHA512
c9199aa2c798b4932b01549c622723161a310e6c23405f2a8db7d9463e8ecfcdea3d1e6db6352f642a9b81838f17de6b97f4a60cdc64066a71136e66a4bb3cb5

Download Submit
memory/3004-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3004-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/3004-2-0x0000000000540000-0x0000000000553000-memory.dmp

Filesize
76KB

Download
memory/3004-23-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/3004-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3028-17-0x0000000000C10000-0x0000000000C25000-memory.dmp

Filesize
84KB

Download
memory/3028-10-0x0000000000C10000-0x0000000000C25000-memory.dmp

Filesize
84KB

Download
memory/3028-14-0x0000000000C10000-0x0000000000C25000-memory.dmp

Filesize
84KB

Download
memory/3028-16-0x0000000000C10000-0x0000000000C25000-memory.dmp

Filesize
84KB

Download
memory/3028-25-0x0000000000C10000-0x0000000000C25000-memory.dmp

Filesize
84KB

Download
memory/4088-11-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4088-9-0x0000000000D30000-0x0000000000D43000-memory.dmp

Filesize
76KB

Download
memory/4088-18-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4088-8-0x00000000005B0000-0x00000000006B0000-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