tofsee | 0f9ab2429ef2e90dc55a1b537175c2e5c4be200de90cec04e5c66c68513b3d5a

General

Target

555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
Size

11.4MB
MD5

555a84e13bf2fc3192ed64aa2fe51316
SHA1

d3edbb5d9ab41f575430e7f6e6bad604bce847d0
SHA256

0f9ab2429ef2e90dc55a1b537175c2e5c4be200de90cec04e5c66c68513b3d5a
SHA512

514ab8a31137bc584a9183d750db08e69befcf9aac2ac74c72444e2650d3eb3618f127c24039a6a40d16c4af94ee1052974736481ecdd0df75d92be3d115b1e3
SSDEEP

6144:pxU32BT0jz22222222222222222222222222222222222222222222222222222/:bUmK

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

4240 netsh.exe

pid	process
4240	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\gibrhive\ImagePath = "C:\\Windows\\SysWOW64\\gibrhive\\kavhbnrj.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:

555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2728 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kavhbnrj.exe

pid process

5044 kavhbnrj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kavhbnrj.exe

description pid process target process

PID 5044 set thread context of 2728 5044 kavhbnrj.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

4588 sc.exe
3560 sc.exe
2088 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2728	svchost.exe

pid	process
5044	kavhbnrj.exe

description	pid	process	target process
PID 5044 set thread context of 2728	5044	kavhbnrj.exe	svchost.exe

pid	process
4588	sc.exe
3560	sc.exe
2088	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

448 580 WerFault.exe 555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
1612 5044 WerFault.exe kavhbnrj.exe

pid	pid_target	process	target process
448	580	WerFault.exe	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
1612	5044	WerFault.exe	kavhbnrj.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exekavhbnrj.exe

description	pid	process	target process
PID 580 wrote to memory of 4400	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4400	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4400	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4952	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4952	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4952	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 580 wrote to memory of 4588	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 4588	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 4588	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 3560	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 3560	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 3560	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 2088	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 2088	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 2088	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 580 wrote to memory of 4240	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 580 wrote to memory of 4240	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 580 wrote to memory of 4240	580	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 5044 wrote to memory of 2728	5044	kavhbnrj.exe	svchost.exe
PID 5044 wrote to memory of 2728	5044	kavhbnrj.exe	svchost.exe
PID 5044 wrote to memory of 2728	5044	kavhbnrj.exe	svchost.exe
PID 5044 wrote to memory of 2728	5044	kavhbnrj.exe	svchost.exe
PID 5044 wrote to memory of 2728	5044	kavhbnrj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:580

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gibrhive\
2⤵
PID:4400

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kavhbnrj.exe" C:\Windows\SysWOW64\gibrhive\
2⤵
PID:4952

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gibrhive binPath= "C:\Windows\SysWOW64\gibrhive\kavhbnrj.exe /d\"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4588

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gibrhive "wifi internet conection"
2⤵
- Launches sc.exe
PID:3560

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gibrhive
2⤵
- Launches sc.exe
PID:2088

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:4240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 580 -s 1036
2⤵
- Program crash
PID:448

C:\Windows\SysWOW64\gibrhive\kavhbnrj.exe
C:\Windows\SysWOW64\gibrhive\kavhbnrj.exe /d"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5044

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 532
2⤵
- Program crash
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 580 -ip 580
1⤵
PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5044 -ip 5044
1⤵
PID:1060

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\kavhbnrj.exe
Filesize
14.3MB

MD5
15ef8fd29255a5fde43cc9a520164a50

SHA1
e82abcd0645188cfddefa72a10d4f24c3722232f

SHA256
f8b0ea691b301fde2263fb97bfb0a3ae681434a499f2b9c2c0dc024dd4a0ef41

SHA512
d2971da27e6b180cd3e6c3d858294b752ca80433487eda4494f1d5356497626ae3cd2f6e2dff4669161d44f3457274875856df8e0c6cb1e2a8f05261e11a7915

Download Submit
memory/580-9-0x0000000002220000-0x0000000002233000-memory.dmp

Filesize
76KB

Download
memory/580-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/580-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/580-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/580-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/580-2-0x0000000002220000-0x0000000002233000-memory.dmp

Filesize
76KB

Download
memory/2728-14-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/2728-16-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/2728-17-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/5044-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5044-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5044-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5044-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads