tofsee | 9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a

General

Target

JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe
Size

285KB
MD5

18c17011dc0a7eb3edb1f8d25becd9d8
SHA1

934ee7e00313f6a2c5ce1b85c9ac397a7a85ad6c
SHA256

9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a
SHA512

ee8cd3a766864cf3f9d7eeda81b548befcee5c91d3089004cfeb527fce3506cc71c76bc940d9337a1783723b13fa279a60748f7323033ddb6f473c64e16f6128
SSDEEP

6144:IWipWoRl6bpZ6AKr4sh0OmQmKSg6FDleRrX:IWipWoRl6b84j9qSgSQRrX

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
2724	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\olijqsri\ImagePath = "C:\\Windows\\SysWOW64\\olijqsri\\gwwwlcia.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_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe

Deletes itself 1 IoCs

pid	Process
1540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5036	gwwwlcia.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5036 set thread context of 1540	5036	gwwwlcia.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3592	sc.exe
4200	sc.exe
3376	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
5088	4828	WerFault.exe	82
2252	5036	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gwwwlcia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 4732	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	83
PID 4828 wrote to memory of 4732	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	83
PID 4828 wrote to memory of 4732	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	83
PID 4828 wrote to memory of 2608	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	85
PID 4828 wrote to memory of 2608	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	85
PID 4828 wrote to memory of 2608	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	85
PID 4828 wrote to memory of 3592	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	87
PID 4828 wrote to memory of 3592	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	87
PID 4828 wrote to memory of 3592	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	87
PID 4828 wrote to memory of 4200	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	90
PID 4828 wrote to memory of 4200	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	90
PID 4828 wrote to memory of 4200	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	90
PID 4828 wrote to memory of 3376	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	92
PID 4828 wrote to memory of 3376	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	92
PID 4828 wrote to memory of 3376	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	92
PID 4828 wrote to memory of 2724	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	95
PID 4828 wrote to memory of 2724	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	95
PID 4828 wrote to memory of 2724	4828	JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe	95
PID 5036 wrote to memory of 1540	5036	gwwwlcia.exe	101
PID 5036 wrote to memory of 1540	5036	gwwwlcia.exe	101
PID 5036 wrote to memory of 1540	5036	gwwwlcia.exe	101
PID 5036 wrote to memory of 1540	5036	gwwwlcia.exe	101
PID 5036 wrote to memory of 1540	5036	gwwwlcia.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\olijqsri\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwwwlcia.exe" C:\Windows\SysWOW64\olijqsri\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create olijqsri binPath= "C:\Windows\SysWOW64\olijqsri\gwwwlcia.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description olijqsri "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start olijqsri
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3376
- 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:2724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 1208
  2⤵
  - Program crash
  PID:5088

C:\Windows\SysWOW64\olijqsri\gwwwlcia.exe
C:\Windows\SysWOW64\olijqsri\gwwwlcia.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9100e31f06a1a22736f8d9707f52622fc26564b48e9f611ac61be5df2817e17a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5036 -s 512
  2⤵
  - Program crash
  PID:2252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4828 -ip 4828
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5036 -ip 5036
1⤵
PID:3720

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\gwwwlcia.exe

Filesize
13.1MB

MD5
1ab6056ba998f14dbf07f24c3c021d3b

SHA1
d0f8bde8f7707a4cc84f148b2cc6f631bb71e2fd

SHA256
4da85cbbbc2143c7eb687b4cc6abf2376322d8db4b4b72a48739dff4205a7141

SHA512
8aefdad3a13ae99abe7c696b79cd29b188839dae9ced09ee6f4bf0d01976ff75e4b6966456585a885443b3dbf12f296a763499a24b444f954a14806cdaea98ea

Download Submit
memory/1540-11-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/1540-13-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/1540-15-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4828-1-0x0000000002E40000-0x0000000002F40000-memory.dmp

Filesize
1024KB

Download
memory/4828-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4828-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4828-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/5036-14-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads