tofsee | be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76

General

Target

JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe
Size

342KB
MD5

1518b03ff2731322f2bcf759be3b9d41
SHA1

fc8eee7fe594cbfc5c827d76b56717df1e27b94c
SHA256

be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76
SHA512

da5b53754940e1df8a63607af8c8f8d2bf4cec4e12744efcf531aa94a62790dd29f73f5f9fedb618f331953d238acd08447fa6c4054c3d2c20814b6905f544c9
SSDEEP

6144:zEwxmgAdC3H8HkHwuIpk4BUoBJnoT7Y6JhAr4Bk:zb5UC3hQuIK4BUoBJnoT7YB4B

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
4724	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\kvblwpyg\ImagePath = "C:\\Windows\\SysWOW64\\kvblwpyg\\phzgfwho.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe

Deletes itself 1 IoCs

pid	Process
3332	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
776	phzgfwho.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 776 set thread context of 3332	776	phzgfwho.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4144	sc.exe
1284	sc.exe
3216	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
2320	3088	WerFault.exe	82
3152	776	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	phzgfwho.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 2124	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	83
PID 3088 wrote to memory of 2124	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	83
PID 3088 wrote to memory of 2124	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	83
PID 3088 wrote to memory of 116	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	85
PID 3088 wrote to memory of 116	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	85
PID 3088 wrote to memory of 116	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	85
PID 3088 wrote to memory of 3216	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	88
PID 3088 wrote to memory of 3216	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	88
PID 3088 wrote to memory of 3216	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	88
PID 3088 wrote to memory of 4144	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	90
PID 3088 wrote to memory of 4144	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	90
PID 3088 wrote to memory of 4144	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	90
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	92
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	92
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	92
PID 3088 wrote to memory of 4724	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	95
PID 3088 wrote to memory of 4724	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	95
PID 3088 wrote to memory of 4724	3088	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	95
PID 776 wrote to memory of 3332	776	phzgfwho.exe	101
PID 776 wrote to memory of 3332	776	phzgfwho.exe	101
PID 776 wrote to memory of 3332	776	phzgfwho.exe	101
PID 776 wrote to memory of 3332	776	phzgfwho.exe	101
PID 776 wrote to memory of 3332	776	phzgfwho.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kvblwpyg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\phzgfwho.exe" C:\Windows\SysWOW64\kvblwpyg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kvblwpyg binPath= "C:\Windows\SysWOW64\kvblwpyg\phzgfwho.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kvblwpyg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kvblwpyg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1284
- 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:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1040
  2⤵
  - Program crash
  PID:2320

C:\Windows\SysWOW64\kvblwpyg\phzgfwho.exe
C:\Windows\SysWOW64\kvblwpyg\phzgfwho.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3332
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 532
  2⤵
  - Program crash
  PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3088 -ip 3088
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 776 -ip 776
1⤵
PID:936

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\phzgfwho.exe

Filesize
14.0MB

MD5
a04146efb06581b3f2fe29ee0476a2eb

SHA1
5e3accf319ade434c82bedc5b3952b0b9d328193

SHA256
a410833cb247e8d6ba9a49f4fb439993465e1e3039a8ad4a2b2199b636852595

SHA512
2a58d3eae76bee61eb22c1db0aeac78256387ecad9f253a8795b9b35db1329568b439b6a7412f1b7611e7db6010b62e25a333bab37f6a5a3cfb3cc7de65d2b9f

Download Submit
memory/776-15-0x0000000000400000-0x00000000008FA000-memory.dmp

Filesize
5.0MB

Download
memory/3088-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/3088-2-0x00000000009D0000-0x00000000009E3000-memory.dmp

Filesize
76KB

Download
memory/3088-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3088-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3088-8-0x00000000009D0000-0x00000000009E3000-memory.dmp

Filesize
76KB

Download
memory/3088-7-0x0000000000400000-0x00000000008FA000-memory.dmp

Filesize
5.0MB

Download
memory/3332-11-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3332-13-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3332-14-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads