tofsee | 366823c206ec42f3724746803d925618cad8b3aa43c0bb73169ef157cb68badd

General

Target

3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
Size

10.5MB
MD5

3c5fcc8c664439dab4697cc1f81e8298
SHA1

ff4ca1aad3e2896d90d6dffd9fa5b054698656de
SHA256

366823c206ec42f3724746803d925618cad8b3aa43c0bb73169ef157cb68badd
SHA512

3772705430ba459d06eb1b633fe4ec306076c521f6eac812174ef07aaa308a8ea4996f2a0b9412800348a7d39a21feccbad780da89a553da163565c919931397
SSDEEP

49152:iCs+vZDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDj:LJ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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

3228 netsh.exe

pid	process
3228	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\rqqwmluo\ImagePath = "C:\\Windows\\SysWOW64\\rqqwmluo\\uwpahpdt.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:

3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4064 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

uwpahpdt.exe

pid process

3160 uwpahpdt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

uwpahpdt.exe

description pid process target process

PID 3160 set thread context of 4064 3160 uwpahpdt.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

1336 sc.exe
4148 sc.exe
3608 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4064	svchost.exe

pid	process
3160	uwpahpdt.exe

description	pid	process	target process
PID 3160 set thread context of 4064	3160	uwpahpdt.exe	svchost.exe

pid	process
1336	sc.exe
4148	sc.exe
3608	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 4 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4968	3160	WerFault.exe	uwpahpdt.exe
3248	3664	WerFault.exe	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
3416	3160	WerFault.exe	uwpahpdt.exe
4712	3160	WerFault.exe	uwpahpdt.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.execmd.execmd.exesc.exesc.exesc.exeuwpahpdt.exenetsh.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uwpahpdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exeuwpahpdt.exe

description	pid	process	target process
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	cmd.exe
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	sc.exe
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	netsh.exe
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	netsh.exe
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	netsh.exe
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	svchost.exe
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	svchost.exe
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	svchost.exe
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	svchost.exe
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3664

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rqqwmluo\
2⤵
- System Location Discovery: System Language Discovery
PID:592

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uwpahpdt.exe" C:\Windows\SysWOW64\rqqwmluo\
2⤵
- System Location Discovery: System Language Discovery
PID:536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rqqwmluo binPath= "C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe /d\"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1336

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rqqwmluo "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4148

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rqqwmluo
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3608

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
- System Location Discovery: System Language Discovery
PID:3228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 1164
2⤵
- Program crash
PID:3248

C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe
C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe /d"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 520
2⤵
- Program crash
PID:4968

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 528
2⤵
- Program crash
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 544
2⤵
- Program crash
PID:4712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3160 -ip 3160
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3664 -ip 3664
1⤵
PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3160 -ip 3160
1⤵
PID:3448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3160 -ip 3160
1⤵
PID:3908

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\uwpahpdt.exe

Filesize
13.0MB

MD5
9efebb31c99c178ba84e48857d425d26

SHA1
7272c3d4885a959b9e0747efffc305df38e4e2de

SHA256
9f8c6db3cefad07e75126c2258b318753c310a488cdf0660a51765807b8e5824

SHA512
f2895550f69862ac5cd653a429755f357c00ca91d70acdec2f10147199c77518d3c88318d39f6ba842bc2ca78e36dabd37c697d047f548915e0e020aa17f9684

Download Submit
memory/3160-12-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-11-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-23-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-10-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-8-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3664-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3664-16-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3664-0-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3664-3-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/3664-2-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3664-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3664-20-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/3664-19-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4064-26-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-17-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-24-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-25-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-13-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads