tofsee | 92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67

General

Target

JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe
Size

289KB
MD5

5f83cbb604e017a7ec6e46776e538e24
SHA1

3219e6f27f3cebd7d499e13cf9e1146c186333cf
SHA256

92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67
SHA512

97843c593e77064fb1a764bdbadf92742c473f5a20b5ae5024be7bf65516f0cc0c8d558cda57032b00bb634189314f0322a340407eaf19ced5da680cafba2afb
SSDEEP

6144:2lfibHny83UbS4sqvfBxBbhAXY0NMHUBL5:2hqUbS4sqvlKXlYG9

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
3016	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\fagqkhne\ImagePath = "C:\\Windows\\SysWOW64\\fagqkhne\\ylursxjw.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe

Deletes itself 1 IoCs

pid	Process
4132	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	ylursxjw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 4132	2496	ylursxjw.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
404	sc.exe
760	sc.exe
5064	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
3136	3000	WerFault.exe	82
4644	2496	WerFault.exe	93

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ylursxjw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 5036	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	83
PID 3000 wrote to memory of 5036	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	83
PID 3000 wrote to memory of 5036	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	83
PID 3000 wrote to memory of 3908	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	85
PID 3000 wrote to memory of 3908	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	85
PID 3000 wrote to memory of 3908	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	85
PID 3000 wrote to memory of 404	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	87
PID 3000 wrote to memory of 404	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	87
PID 3000 wrote to memory of 404	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	87
PID 3000 wrote to memory of 760	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	89
PID 3000 wrote to memory of 760	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	89
PID 3000 wrote to memory of 760	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	89
PID 3000 wrote to memory of 5064	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	91
PID 3000 wrote to memory of 5064	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	91
PID 3000 wrote to memory of 5064	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	91
PID 3000 wrote to memory of 3016	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	94
PID 3000 wrote to memory of 3016	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	94
PID 3000 wrote to memory of 3016	3000	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	94
PID 2496 wrote to memory of 4132	2496	ylursxjw.exe	100
PID 2496 wrote to memory of 4132	2496	ylursxjw.exe	100
PID 2496 wrote to memory of 4132	2496	ylursxjw.exe	100
PID 2496 wrote to memory of 4132	2496	ylursxjw.exe	100
PID 2496 wrote to memory of 4132	2496	ylursxjw.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fagqkhne\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ylursxjw.exe" C:\Windows\SysWOW64\fagqkhne\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fagqkhne binPath= "C:\Windows\SysWOW64\fagqkhne\ylursxjw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fagqkhne "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fagqkhne
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5064
- 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:3016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 1032
  2⤵
  - Program crash
  PID:3136

C:\Windows\SysWOW64\fagqkhne\ylursxjw.exe
C:\Windows\SysWOW64\fagqkhne\ylursxjw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 564
  2⤵
  - Program crash
  PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3000 -ip 3000
1⤵
PID:1192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2496 -ip 2496
1⤵
PID:8

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\ylursxjw.exe

Filesize
10.3MB

MD5
3f5c3713e01331aec7eb1e7ffa2c8660

SHA1
defeda3765835dd93cfc6b946b2e1ff0ef340dcd

SHA256
0a902c77373ad44738d5731511f5cbf8c30480a0c30e4e813818b038cf3c193c

SHA512
71bf0c9f41c95b3f8f1bf44c28febb786e71aa378d9cfa5280e9ad87f18d8045dae81c3d2e77bb2a006ea41c6e20529f6333719d3ec97f27664786f0f04d61f7

Download Submit
memory/2496-15-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/3000-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

Filesize
1024KB

Download
memory/3000-2-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/3000-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-8-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/3000-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/4132-11-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4132-13-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4132-14-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads