tofsee | 93a0cf66597311ab47acf053542131ad5ed2410d1e25c67b1e77e7b324bd9e88

General

Target

fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe
Size

13.3MB
MD5

fad02e51291b3038659473cff47e29d0
SHA1

5ab067004bc8296c68fd9371eb5be7a35925b51a
SHA256

93a0cf66597311ab47acf053542131ad5ed2410d1e25c67b1e77e7b324bd9e88
SHA512

dc8203a4281d15e5ffb791a9260917cd92e67db1658948f4da74e61ec0365a40263fe5a98d809ddf97173d243f7289b442041f4ae094a33009b05400169a69aa
SSDEEP

49152:EHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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

1884 netsh.exe

pid	process
1884	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\fjdvhiaw\ImagePath = "C:\\Windows\\SysWOW64\\fjdvhiaw\\yepashbn.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:

fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4864 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

yepashbn.exe

pid process

4232 yepashbn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

yepashbn.exe

description pid process target process

PID 4232 set thread context of 4864 4232 yepashbn.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

3088 sc.exe
4720 sc.exe
4448 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

1252 2560 WerFault.exe fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe
4572 4232 WerFault.exe yepashbn.exe

pid	process
4864	svchost.exe

pid	process
4232	yepashbn.exe

description	pid	process	target process
PID 4232 set thread context of 4864	4232	yepashbn.exe	svchost.exe

pid	process
3088	sc.exe
4720	sc.exe
4448	sc.exe

pid	pid_target	process	target process
1252	2560	WerFault.exe	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe
4572	4232	WerFault.exe	yepashbn.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fad02e51291b3038659473cff47e29d0_JaffaCakes118.exeyepashbn.exe

description	pid	process	target process
PID 2560 wrote to memory of 2976	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 2976	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 2976	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 2916	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 2916	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 2916	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	cmd.exe
PID 2560 wrote to memory of 4720	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 4720	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 4720	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 4448	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 4448	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 4448	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 3088	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 3088	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 3088	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	sc.exe
PID 2560 wrote to memory of 1884	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	netsh.exe
PID 2560 wrote to memory of 1884	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	netsh.exe
PID 2560 wrote to memory of 1884	2560	fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe	netsh.exe
PID 4232 wrote to memory of 4864	4232	yepashbn.exe	svchost.exe
PID 4232 wrote to memory of 4864	4232	yepashbn.exe	svchost.exe
PID 4232 wrote to memory of 4864	4232	yepashbn.exe	svchost.exe
PID 4232 wrote to memory of 4864	4232	yepashbn.exe	svchost.exe
PID 4232 wrote to memory of 4864	4232	yepashbn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fjdvhiaw\
2⤵
PID:2976

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yepashbn.exe" C:\Windows\SysWOW64\fjdvhiaw\
2⤵
PID:2916

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fjdvhiaw binPath= "C:\Windows\SysWOW64\fjdvhiaw\yepashbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4720

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fjdvhiaw "wifi internet conection"
2⤵
- Launches sc.exe
PID:4448

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fjdvhiaw
2⤵
- Launches sc.exe
PID:3088

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:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1272
2⤵
- Program crash
PID:1252

C:\Windows\SysWOW64\fjdvhiaw\yepashbn.exe
C:\Windows\SysWOW64\fjdvhiaw\yepashbn.exe /d"C:\Users\Admin\AppData\Local\Temp\fad02e51291b3038659473cff47e29d0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4232

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 512
2⤵
- Program crash
PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2560 -ip 2560
1⤵
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4232 -ip 4232
1⤵
PID:4348

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\yepashbn.exe

Filesize
12.4MB

MD5
d7c88e6b719b111e4ab8f961ceecf185

SHA1
41171780c1316b26ff8761c2d2e78e114eb953c0

SHA256
d5baa1c1de34cf7212a74dedac62bae9aab93992f93922e807c293610cca7dc9

SHA512
4bf882a40c0757ea6702ea189d763eff618dc12cd67e6d31137f4293902fc79c06d649a0a8f42d9ed94d0a5619cee21758139637abbac2642a944743014207ae

Download Submit
memory/2560-1-0x0000000000CE0000-0x0000000000DE0000-memory.dmp

Filesize
1024KB

Download
memory/2560-2-0x0000000002960000-0x0000000002973000-memory.dmp

Filesize
76KB

Download
memory/2560-4-0x0000000000400000-0x0000000000C19000-memory.dmp

Filesize
8.1MB

Download
memory/2560-7-0x0000000000400000-0x0000000000C19000-memory.dmp

Filesize
8.1MB

Download
memory/2560-8-0x0000000002960000-0x0000000002973000-memory.dmp

Filesize
76KB

Download
memory/4232-10-0x0000000000DE0000-0x0000000000EE0000-memory.dmp

Filesize
1024KB

Download
memory/4232-12-0x0000000000400000-0x0000000000C19000-memory.dmp

Filesize
8.1MB

Download
memory/4232-18-0x0000000000400000-0x0000000000C19000-memory.dmp

Filesize
8.1MB

Download
memory/4864-11-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4864-15-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4864-16-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4864-17-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4864-19-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads