tofsee | 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82

General

Target

ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe
Size

11.2MB
MD5

ffdceebfd66c68c128cd5c7e349881b5
SHA1

19e173e67dea7a78b95bce015cf4a58dc2f976c7
SHA256

48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82
SHA512

be958ffd1343a1e1c06ea68a29fa6861c6a1762a74f227190c7d2597a0a64f9926527491b8a11835975d6bf7743359423c9dbf090523d9585c7d1afb623acbd8
SSDEEP

49152:wNbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:w

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

4644 netsh.exe

pid	process
4644	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\djtgrlur\ImagePath = "C:\\Windows\\SysWOW64\\djtgrlur\\wiuccnck.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:

ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3980 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wiuccnck.exe

pid process

4924 wiuccnck.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wiuccnck.exe

description pid process target process

PID 4924 set thread context of 3980 4924 wiuccnck.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

3712 sc.exe
1516 sc.exe
3036 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

4956 2360 WerFault.exe ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe
4044 4924 WerFault.exe wiuccnck.exe

pid	process
3980	svchost.exe

pid	process
4924	wiuccnck.exe

description	pid	process	target process
PID 4924 set thread context of 3980	4924	wiuccnck.exe	svchost.exe

pid	process
3712	sc.exe
1516	sc.exe
3036	sc.exe

pid	pid_target	process	target process
4956	2360	WerFault.exe	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe
4044	4924	WerFault.exe	wiuccnck.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exewiuccnck.exe

description	pid	process	target process
PID 2360 wrote to memory of 5060	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 5060	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 5060	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 1904	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 1904	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 1904	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	cmd.exe
PID 2360 wrote to memory of 3712	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 3712	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 3712	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 1516	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 1516	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 1516	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 3036	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 3036	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 3036	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	sc.exe
PID 2360 wrote to memory of 4644	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	netsh.exe
PID 2360 wrote to memory of 4644	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	netsh.exe
PID 2360 wrote to memory of 4644	2360	ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe	netsh.exe
PID 4924 wrote to memory of 3980	4924	wiuccnck.exe	svchost.exe
PID 4924 wrote to memory of 3980	4924	wiuccnck.exe	svchost.exe
PID 4924 wrote to memory of 3980	4924	wiuccnck.exe	svchost.exe
PID 4924 wrote to memory of 3980	4924	wiuccnck.exe	svchost.exe
PID 4924 wrote to memory of 3980	4924	wiuccnck.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2360

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\djtgrlur\
2⤵
PID:5060

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wiuccnck.exe" C:\Windows\SysWOW64\djtgrlur\
2⤵
PID:1904

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create djtgrlur binPath= "C:\Windows\SysWOW64\djtgrlur\wiuccnck.exe /d\"C:\Users\Admin\AppData\Local\Temp\ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3712

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description djtgrlur "wifi internet conection"
2⤵
- Launches sc.exe
PID:1516

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start djtgrlur
2⤵
- Launches sc.exe
PID:3036

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:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1036
2⤵
- Program crash
PID:4956

C:\Windows\SysWOW64\djtgrlur\wiuccnck.exe
C:\Windows\SysWOW64\djtgrlur\wiuccnck.exe /d"C:\Users\Admin\AppData\Local\Temp\ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 532
2⤵
- Program crash
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2360 -ip 2360
1⤵
PID:3544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4924 -ip 4924
1⤵
PID:184

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\wiuccnck.exe
Filesize
10.9MB

MD5
7e4b84931eab58831c662343feab3227

SHA1
ed2dd0fd36a51596f8d0e5241e525380927f8b14

SHA256
da9d6343b40e2f44a21627b4989dc504f2df4caca871e5c038bebb61acf557e2

SHA512
ef22aa82d7c31513d4913727ae900927d439108cb78b0d9d4d0659f4b6ef71a8ca4a130ad021ab4ae244bb45f9f1a9e5bdb943ba099c3a0489e39c19a7c46696

Download Submit
memory/2360-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2360-4-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2360-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2360-1-0x0000000002C60000-0x0000000002D60000-memory.dmp

Filesize
1024KB

Download
memory/3980-11-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/3980-16-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/3980-17-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/3980-18-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/3980-19-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/4924-10-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4924-9-0x0000000002D00000-0x0000000002E00000-memory.dmp

Filesize
1024KB

Download
memory/4924-14-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/4924-15-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads