tofsee | aab7da4ca738485221428e2bd07a7de7441c7e660645b5c360add9af4e562ac1

General

Target

face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe
Size

11.3MB
MD5

face11299f7fffa093c4bfccf6e76d09
SHA1

5fa4cab65e8a45c98edf3ee576c5b336fad32154
SHA256

aab7da4ca738485221428e2bd07a7de7441c7e660645b5c360add9af4e562ac1
SHA512

80ce892c192d480299d7c616de8188d2e8e145b5b611f35fbb163df2d7cd16ff808c81a93d281dba83d749c8ccc05cf491c46a17d3c8683ff26497e0ef23c831
SSDEEP

6144:AYZBka1hn70xttl2pZzmXXoN1P3yAoYFrqQuiIjLW/c/c/c/c/c/c/c/c/c/c/cH:AaBkK4nl2pZziXoDP3yAo0qPiI

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

2096 netsh.exe

pid	process
2096	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\tfpgpiei\ImagePath = "C:\\Windows\\SysWOW64\\tfpgpiei\\elomnndr.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:

face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4756 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

elomnndr.exe

pid process

3916 elomnndr.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

elomnndr.exe

description pid process target process

PID 3916 set thread context of 4756 3916 elomnndr.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

3616 sc.exe
4900 sc.exe
4844 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

3052 4420 WerFault.exe face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe
2840 3916 WerFault.exe elomnndr.exe

pid	process
4756	svchost.exe

pid	process
3916	elomnndr.exe

description	pid	process	target process
PID 3916 set thread context of 4756	3916	elomnndr.exe	svchost.exe

pid	process
3616	sc.exe
4900	sc.exe
4844	sc.exe

pid	pid_target	process	target process
3052	4420	WerFault.exe	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe
2840	3916	WerFault.exe	elomnndr.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exeelomnndr.exe

description	pid	process	target process
PID 4420 wrote to memory of 740	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 740	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 740	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 2368	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 2368	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 2368	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 3616	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 3616	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 3616	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4900	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4900	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4900	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4844	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4844	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 4844	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	sc.exe
PID 4420 wrote to memory of 2096	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	netsh.exe
PID 4420 wrote to memory of 2096	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	netsh.exe
PID 4420 wrote to memory of 2096	4420	face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe	netsh.exe
PID 3916 wrote to memory of 4756	3916	elomnndr.exe	svchost.exe
PID 3916 wrote to memory of 4756	3916	elomnndr.exe	svchost.exe
PID 3916 wrote to memory of 4756	3916	elomnndr.exe	svchost.exe
PID 3916 wrote to memory of 4756	3916	elomnndr.exe	svchost.exe
PID 3916 wrote to memory of 4756	3916	elomnndr.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4420

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tfpgpiei\
2⤵
PID:740

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\elomnndr.exe" C:\Windows\SysWOW64\tfpgpiei\
2⤵
PID:2368

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tfpgpiei binPath= "C:\Windows\SysWOW64\tfpgpiei\elomnndr.exe /d\"C:\Users\Admin\AppData\Local\Temp\face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3616

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tfpgpiei "wifi internet conection"
2⤵
- Launches sc.exe
PID:4900

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tfpgpiei
2⤵
- Launches sc.exe
PID:4844

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:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 892
2⤵
- Program crash
PID:3052

C:\Windows\SysWOW64\tfpgpiei\elomnndr.exe
C:\Windows\SysWOW64\tfpgpiei\elomnndr.exe /d"C:\Users\Admin\AppData\Local\Temp\face11299f7fffa093c4bfccf6e76d09_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 512
2⤵
- Program crash
PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4420 -ip 4420
1⤵
PID:4272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3916 -ip 3916
1⤵
PID:4692

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\elomnndr.exe
Filesize
10.7MB

MD5
63e4a4ade0b0534bff3436ea21bd9e32

SHA1
7f6c95de5a13b9e219a7db64614343769a1ee936

SHA256
61f0cfe415b200215ddb453a56637309dc5e27a9571d3f7105ec229e44d57c9e

SHA512
5e159641a0ebab1006dc302cb323fc76b73a7033f130eb84bd2a18307f59daa6208fa9214758066d3d08625bf117d17d0e9ea563f7d1bdb172275cedf89ff05c

Download Submit
memory/3916-10-0x0000000001830000-0x0000000001843000-memory.dmp

Filesize
76KB

Download
memory/3916-9-0x0000000001860000-0x0000000001960000-memory.dmp

Filesize
1024KB

Download
memory/3916-14-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/3916-18-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/4420-4-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/4420-2-0x0000000003410000-0x0000000003423000-memory.dmp

Filesize
76KB

Download
memory/4420-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/4420-1-0x00000000018F0000-0x00000000019F0000-memory.dmp

Filesize
1024KB

Download
memory/4756-11-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4756-16-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4756-17-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4756-19-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads