tofsee | ac7a326d4aee82560990e2a18d311eb56c0c2d4e4dea0a712b27f7041c809c86

General

Target

JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe
Size

11.6MB
MD5

9c091435e90c9aff994ec6709d3ac5ad
SHA1

8c4671dccf4e9af24cb39a84e6208d1a034df8c4
SHA256

ac7a326d4aee82560990e2a18d311eb56c0c2d4e4dea0a712b27f7041c809c86
SHA512

08cdfa4e9eb3a2bcb220b29c8ff2656f01017567a305eb5e532adcf84a83d3483ef9f9aefca63020e822742a0199f9d77e76767cff3d00ac0d003c54434a5edf
SSDEEP

196608:6MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMX:6MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMX

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
4104	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\hukutuhd\ImagePath = "C:\\Windows\\SysWOW64\\hukutuhd\\lyhefkwj.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe

Deletes itself 1 IoCs

pid	Process
1128	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
664	lyhefkwj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 664 set thread context of 1128	664	lyhefkwj.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
3280	sc.exe
4192	sc.exe
3844	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
4720	3792	WerFault.exe	84
2472	664	WerFault.exe	96

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_9c091435e90c9aff994ec6709d3ac5ad.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	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	lyhefkwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3792 wrote to memory of 432	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	86
PID 3792 wrote to memory of 432	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	86
PID 3792 wrote to memory of 432	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	86
PID 3792 wrote to memory of 1336	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	88
PID 3792 wrote to memory of 1336	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	88
PID 3792 wrote to memory of 1336	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	88
PID 3792 wrote to memory of 3280	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	90
PID 3792 wrote to memory of 3280	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	90
PID 3792 wrote to memory of 3280	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	90
PID 3792 wrote to memory of 4192	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	92
PID 3792 wrote to memory of 4192	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	92
PID 3792 wrote to memory of 4192	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	92
PID 3792 wrote to memory of 3844	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	94
PID 3792 wrote to memory of 3844	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	94
PID 3792 wrote to memory of 3844	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	94
PID 3792 wrote to memory of 4104	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	97
PID 3792 wrote to memory of 4104	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	97
PID 3792 wrote to memory of 4104	3792	JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe	97
PID 664 wrote to memory of 1128	664	lyhefkwj.exe	108
PID 664 wrote to memory of 1128	664	lyhefkwj.exe	108
PID 664 wrote to memory of 1128	664	lyhefkwj.exe	108
PID 664 wrote to memory of 1128	664	lyhefkwj.exe	108
PID 664 wrote to memory of 1128	664	lyhefkwj.exe	108

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hukutuhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lyhefkwj.exe" C:\Windows\SysWOW64\hukutuhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hukutuhd binPath= "C:\Windows\SysWOW64\hukutuhd\lyhefkwj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hukutuhd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hukutuhd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3844
- 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:4104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3792 -s 672
  2⤵
  - Program crash
  PID:4720

C:\Windows\SysWOW64\hukutuhd\lyhefkwj.exe
C:\Windows\SysWOW64\hukutuhd\lyhefkwj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c091435e90c9aff994ec6709d3ac5ad.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:664
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 664 -s 516
  2⤵
  - Program crash
  PID:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3792 -ip 3792
1⤵
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 664 -ip 664
1⤵
PID:1580

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\lyhefkwj.exe

Filesize
12.9MB

MD5
d584df58d67e6b99b0bfe24516eb499f

SHA1
44d07129438c468577b8b191ef523e1dfb43c7a2

SHA256
b9abef1b3e65345efdc832f4006c9b76ae057086c5597564c033694c37f56d38

SHA512
c6ddfce2ba5a14154afd314fc68a82c35fb218f0fbe01e93663a2bd35f5faddc5206902dae1cbd088f055947a7cac04bba91c3cb09ca949f801c1b1ca9b1b775

Download Submit
memory/664-14-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download
memory/1128-10-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/1128-12-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/1128-13-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/3792-0-0x0000000003170000-0x000000000317D000-memory.dmp

Filesize
52KB

Download
memory/3792-1-0x0000000003180000-0x0000000003193000-memory.dmp

Filesize
76KB

Download
memory/3792-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3792-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3792-8-0x0000000003180000-0x0000000003193000-memory.dmp

Filesize
76KB

Download
memory/3792-7-0x0000000003170000-0x000000000317D000-memory.dmp

Filesize
52KB

Download
memory/3792-6-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads