tofsee | e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296

General

Target

JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe
Size

167KB
MD5

0cb3adec3ce1faebbab29888915f9636
SHA1

b623842bf207b9b44bb61340ee9cae53f3b4ad3c
SHA256

e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296
SHA512

11ae399105d1a097dc502e138dfbfac854e61c2ad5db28777dee1dea9697aab0a26a2f5c80d4c081d9fc35e41716e1d7d36f510e465c885f9317f15e60aa9321
SSDEEP

3072:VcaRIAtq6Fvn49EZ8kwu25gnvju1WIasBW/S9H6dY3:21Atq6a9sv3/Ead

Score

10^/10

tofsee discovery 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
Tofsee family
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

pid	Process
972	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\kuzkgtxc\ImagePath = "C:\\Windows\\SysWOW64\\kuzkgtxc\\qtmusucm.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe

Deletes itself 1 IoCs

pid	Process
4228	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4336	qtmusucm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4336 set thread context of 4228	4336	qtmusucm.exe	98

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1140	sc.exe
3144	sc.exe
1660	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

pid	pid_target	Process	procid_target
2228	2760	WerFault.exe	81
2316	4336	WerFault.exe	92

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.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	qtmusucm.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 1256	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	82
PID 2760 wrote to memory of 1256	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	82
PID 2760 wrote to memory of 1256	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	82
PID 2760 wrote to memory of 1088	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	84
PID 2760 wrote to memory of 1088	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	84
PID 2760 wrote to memory of 1088	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	84
PID 2760 wrote to memory of 1140	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	86
PID 2760 wrote to memory of 1140	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	86
PID 2760 wrote to memory of 1140	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	86
PID 2760 wrote to memory of 3144	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	88
PID 2760 wrote to memory of 3144	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	88
PID 2760 wrote to memory of 3144	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	88
PID 2760 wrote to memory of 1660	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	90
PID 2760 wrote to memory of 1660	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	90
PID 2760 wrote to memory of 1660	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	90
PID 2760 wrote to memory of 972	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	93
PID 2760 wrote to memory of 972	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	93
PID 2760 wrote to memory of 972	2760	JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe	93
PID 4336 wrote to memory of 4228	4336	qtmusucm.exe	98
PID 4336 wrote to memory of 4228	4336	qtmusucm.exe	98
PID 4336 wrote to memory of 4228	4336	qtmusucm.exe	98
PID 4336 wrote to memory of 4228	4336	qtmusucm.exe	98
PID 4336 wrote to memory of 4228	4336	qtmusucm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kuzkgtxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qtmusucm.exe" C:\Windows\SysWOW64\kuzkgtxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kuzkgtxc binPath= "C:\Windows\SysWOW64\kuzkgtxc\qtmusucm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kuzkgtxc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kuzkgtxc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1660
- 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:972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 1348
  2⤵
  - Program crash
  PID:2228

C:\Windows\SysWOW64\kuzkgtxc\qtmusucm.exe
C:\Windows\SysWOW64\kuzkgtxc\qtmusucm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e71b8af014065f8c886c55d96b0227f78a68a5aa8c48419d5e448c880ab68296.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4336 -s 528
  2⤵
  - Program crash
  PID:2316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2760 -ip 2760
1⤵
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4336 -ip 4336
1⤵
PID:5020

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\qtmusucm.exe

Filesize
11.8MB

MD5
51cf5d393be1b214184998e23770e4eb

SHA1
b2e7f4cec7c110b185caee883e5fad4d7140c214

SHA256
27b8da51d42eecf01842fa66a2e94d2c502471e93e66a9f341a3eeab1cfd2f00

SHA512
c5c84da84a3d7488ef37411e16818905958b15b4369d95d26699ab10ca9b7180bad268f6c28878760c5c13454a58b316653bd1cfe0ca30e0c6867878a3265c69

Download Submit
memory/2760-9-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/2760-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-2-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/2760-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2760-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4228-14-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4228-16-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4228-17-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4336-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4336-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4336-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4336-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads