tofsee | 50ea203b769e19eaf7b535555780a8104fc6ace14354ac7e0886d523b78cbfe9

General

Target

076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
Size

10.8MB
MD5

076bcfd6b8c9a2efef4226036f2a4d55
SHA1

14d9b18903be4275b5731cd53b587f7cf3d1d28b
SHA256

50ea203b769e19eaf7b535555780a8104fc6ace14354ac7e0886d523b78cbfe9
SHA512

f6948b667ef697820682c2ece4a42b343f75b2c2f1db99f6973dc66fb3015705b5a2eb2e73dc2543b1c72f671f5f2e458702014b9f06a9076cb3c483e6eba42d
SSDEEP

24576:kJQyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyn:k

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

1320 netsh.exe

pid	process
1320	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\ibfizrnx\ImagePath = "C:\\Windows\\SysWOW64\\ibfizrnx\\mgpzmpug.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:

076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2380 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

mgpzmpug.exe

pid process

4384 mgpzmpug.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mgpzmpug.exe

description pid process target process

PID 4384 set thread context of 2380 4384 mgpzmpug.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

1556 sc.exe
208 sc.exe
2512 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2380	svchost.exe

pid	process
4384	mgpzmpug.exe

description	pid	process	target process
PID 4384 set thread context of 2380	4384	mgpzmpug.exe	svchost.exe

pid	process
1556	sc.exe
208	sc.exe
2512	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

1020 3568 WerFault.exe 076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
1380 4384 WerFault.exe mgpzmpug.exe

pid	pid_target	process	target process
1020	3568	WerFault.exe	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
1380	4384	WerFault.exe	mgpzmpug.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exemgpzmpug.exe

description	pid	process	target process
PID 3568 wrote to memory of 940	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 940	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 940	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 5064	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 5064	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 5064	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 3568 wrote to memory of 1556	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 1556	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 1556	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 208	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 208	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 208	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 2512	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 2512	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 2512	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 3568 wrote to memory of 1320	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 3568 wrote to memory of 1320	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 3568 wrote to memory of 1320	3568	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 4384 wrote to memory of 2380	4384	mgpzmpug.exe	svchost.exe
PID 4384 wrote to memory of 2380	4384	mgpzmpug.exe	svchost.exe
PID 4384 wrote to memory of 2380	4384	mgpzmpug.exe	svchost.exe
PID 4384 wrote to memory of 2380	4384	mgpzmpug.exe	svchost.exe
PID 4384 wrote to memory of 2380	4384	mgpzmpug.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3568

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ibfizrnx\
2⤵
PID:940

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mgpzmpug.exe" C:\Windows\SysWOW64\ibfizrnx\
2⤵
PID:5064

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ibfizrnx binPath= "C:\Windows\SysWOW64\ibfizrnx\mgpzmpug.exe /d\"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1556

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ibfizrnx "wifi internet conection"
2⤵
- Launches sc.exe
PID:208

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ibfizrnx
2⤵
- Launches sc.exe
PID:2512

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:1320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 1184
2⤵
- Program crash
PID:1020

C:\Windows\SysWOW64\ibfizrnx\mgpzmpug.exe
C:\Windows\SysWOW64\ibfizrnx\mgpzmpug.exe /d"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4384

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 512
2⤵
- Program crash
PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3568 -ip 3568
1⤵
PID:2740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4384 -ip 4384
1⤵
PID:3708

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\mgpzmpug.exe

Filesize
14.8MB

MD5
786c041548fdca93f76312cabdb23220

SHA1
992dcf55f8cc6729054ce780372a0f635255b6ab

SHA256
c512ddbf38a64ba57c2628c17e017165832080dd23e326f46ce93ca39228c601

SHA512
6721528091b3f5c1b17e3f4b96113d8964e417b38220a4f99faf36a5e0841a5eba7399bf35b90fe7b0461050d2b84677906d8d44d1652b3e461dd83fd849ed80

Download Submit
memory/2380-14-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/2380-17-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/2380-16-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/3568-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3568-9-0x00000000005D0000-0x00000000005E3000-memory.dmp

Filesize
76KB

Download
memory/3568-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/3568-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3568-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3568-2-0x00000000005D0000-0x00000000005E3000-memory.dmp

Filesize
76KB

Download
memory/4384-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/4384-13-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/4384-12-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/4384-18-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads