tofsee | 8765a0812ad0542a674be1585e4fd6da359621b5f19da44309bfb4cd02eedda1

General

Target

25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe
Size

10.2MB
MD5

25e45ae62147eb401b332a1bff694693
SHA1

8bd56b03390f2403549de9263e6ec191bec99284
SHA256

8765a0812ad0542a674be1585e4fd6da359621b5f19da44309bfb4cd02eedda1
SHA512

757075e4a8e740e7be2317529cf9b38f4e2d752f248d153eb3ee3755992516962b82819d690d201abd8e698465af3c78b7ed36df615c8ad9fc885ecc716d5695
SSDEEP

196608:mE/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvn:mE

Score

10^/10

tofsee evasion execution persistence privilege_escalation 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) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

3204 netsh.exe

pid	process
3204	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\xttgyteq\ImagePath = "C:\\Windows\\SysWOW64\\xttgyteq\\etgcongs.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:

25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-771719357-2485960699-3367710044-1000\Control Panel\International\Geo\Nation	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1644 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

etgcongs.exe

pid process

5108 etgcongs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

etgcongs.exe

description pid process target process

PID 5108 set thread context of 1644 5108 etgcongs.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

1084 sc.exe
3368 sc.exe
1176 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1644	svchost.exe

pid	process
5108	etgcongs.exe

description	pid	process	target process
PID 5108 set thread context of 1644	5108	etgcongs.exe	svchost.exe

pid	process
1084	sc.exe
3368	sc.exe
1176	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4208 4240 WerFault.exe 25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe
4560 5108 WerFault.exe etgcongs.exe

pid	pid_target	process	target process
4208	4240	WerFault.exe	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe
4560	5108	WerFault.exe	etgcongs.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

25e45ae62147eb401b332a1bff694693_JaffaCakes118.exeetgcongs.exe

description	pid	process	target process
PID 4240 wrote to memory of 4424	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 4424	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 4424	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 4752	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 4752	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 4752	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	cmd.exe
PID 4240 wrote to memory of 1084	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 1084	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 1084	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 3368	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 3368	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 3368	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 1176	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 1176	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 1176	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	sc.exe
PID 4240 wrote to memory of 3204	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	netsh.exe
PID 4240 wrote to memory of 3204	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	netsh.exe
PID 4240 wrote to memory of 3204	4240	25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe	netsh.exe
PID 5108 wrote to memory of 1644	5108	etgcongs.exe	svchost.exe
PID 5108 wrote to memory of 1644	5108	etgcongs.exe	svchost.exe
PID 5108 wrote to memory of 1644	5108	etgcongs.exe	svchost.exe
PID 5108 wrote to memory of 1644	5108	etgcongs.exe	svchost.exe
PID 5108 wrote to memory of 1644	5108	etgcongs.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4240

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xttgyteq\
2⤵
PID:4424

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\etgcongs.exe" C:\Windows\SysWOW64\xttgyteq\
2⤵
PID:4752

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xttgyteq binPath= "C:\Windows\SysWOW64\xttgyteq\etgcongs.exe /d\"C:\Users\Admin\AppData\Local\Temp\25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1084

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xttgyteq "wifi internet conection"
2⤵
- Launches sc.exe
PID:3368

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xttgyteq
2⤵
- Launches sc.exe
PID:1176

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
- Event Triggered Execution: Netsh Helper DLL
PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4240 -s 1284
2⤵
- Program crash
PID:4208

C:\Windows\SysWOW64\xttgyteq\etgcongs.exe
C:\Windows\SysWOW64\xttgyteq\etgcongs.exe /d"C:\Users\Admin\AppData\Local\Temp\25e45ae62147eb401b332a1bff694693_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5108

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 512
2⤵
- Program crash
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4240 -ip 4240
1⤵
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5108 -ip 5108
1⤵
PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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\etgcongs.exe

Filesize
14.9MB

MD5
55041a3c1d1d2c5fe90186b4887f76ca

SHA1
e6bb2171b7f2e9b19e3ab3da3cefea2e42e1c777

SHA256
a0a5904dc102edfae49ee590b8188a5d2cd3e245033a66409f28a3e0cc139805

SHA512
77867a7828a37a9f66de42433f4824afffd1622972a93df6db2c51bf7d33122f5037d734204afb75aa7b136ee9c869c9e6f4dc6bd400be29eab7f068228b882e

Download Submit
memory/1644-14-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/1644-16-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/1644-17-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/4240-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4240-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4240-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4240-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4240-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4240-1-0x0000000000B20000-0x0000000000C20000-memory.dmp

Filesize
1024KB

Download
memory/5108-11-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5108-13-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5108-12-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5108-19-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads