tofsee | 1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943

General

Target

JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe
Size

210KB
MD5

0216b4518035394117782852e6929b39
SHA1

aa1f06ce86237f35f1a18c93801f5666d04e615e
SHA256

1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943
SHA512

c20ac3781ab4e2256f72ec6bec795bba99ce08d71dabc4afe2557a8425a78992b51fb81137dc644df462c408c7998d7200934d5a675e3204a59af0529d566cf7
SSDEEP

3072:j7sP8bp8Fj2+y8FdOhTuHwznQLBIHFLv1JWrxpzbgqru2sxkgaBChe:MUt8Fj2cFd4tlLNJuzbgwujiga

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
4420	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\nkxwmtxk\ImagePath = "C:\\Windows\\SysWOW64\\nkxwmtxk\\zjobidcr.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe

Deletes itself 1 IoCs

pid	Process
464	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	zjobidcr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 464	2932	zjobidcr.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2552	sc.exe
760	sc.exe
1156	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
1764	3764	WerFault.exe	81
1276	2932	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.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	zjobidcr.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 976	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	82
PID 3764 wrote to memory of 976	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	82
PID 3764 wrote to memory of 976	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	82
PID 3764 wrote to memory of 936	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	84
PID 3764 wrote to memory of 936	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	84
PID 3764 wrote to memory of 936	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	84
PID 3764 wrote to memory of 2552	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	86
PID 3764 wrote to memory of 2552	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	86
PID 3764 wrote to memory of 2552	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	86
PID 3764 wrote to memory of 760	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	88
PID 3764 wrote to memory of 760	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	88
PID 3764 wrote to memory of 760	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	88
PID 3764 wrote to memory of 1156	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	90
PID 3764 wrote to memory of 1156	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	90
PID 3764 wrote to memory of 1156	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	90
PID 3764 wrote to memory of 4420	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	93
PID 3764 wrote to memory of 4420	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	93
PID 3764 wrote to memory of 4420	3764	JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe	93
PID 2932 wrote to memory of 464	2932	zjobidcr.exe	98
PID 2932 wrote to memory of 464	2932	zjobidcr.exe	98
PID 2932 wrote to memory of 464	2932	zjobidcr.exe	98
PID 2932 wrote to memory of 464	2932	zjobidcr.exe	98
PID 2932 wrote to memory of 464	2932	zjobidcr.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nkxwmtxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe" C:\Windows\SysWOW64\nkxwmtxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nkxwmtxk binPath= "C:\Windows\SysWOW64\nkxwmtxk\zjobidcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nkxwmtxk "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 nkxwmtxk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1156
- 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:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1036
  2⤵
  - Program crash
  PID:1764

C:\Windows\SysWOW64\nkxwmtxk\zjobidcr.exe
C:\Windows\SysWOW64\nkxwmtxk\zjobidcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b5c3e8a1f6ba47e6f30f78c44fdba79ac300c89530b032572cffd2af7ae6943.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 512
  2⤵
  - Program crash
  PID:1276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3764 -ip 3764
1⤵
PID:3808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2932 -ip 2932
1⤵
PID:636

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\zjobidcr.exe

Filesize
13.9MB

MD5
b549be2e0b6e974209e1820273e7148f

SHA1
b6a962bc10ed56f16600a42f80be63542defe222

SHA256
6ee77de67c0f25e6487cca4b5e48b016440e524c857c3e1f0b319ff114dc658c

SHA512
6d10fa1267334c2044b7774bee28d4b211a2a1cef2f4b954bf63acabd11c84835cbd928132e88c45757262728429e7fd81fc4ce1df3d6a158ad761c855c56b1a

Download Submit
memory/464-13-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/464-16-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/464-15-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/2932-12-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2932-6-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2932-7-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2932-18-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3764-10-0x00000000004E0000-0x00000000004F3000-memory.dmp

Filesize
76KB

Download
memory/3764-0-0x00000000004D0000-0x00000000004DD000-memory.dmp

Filesize
52KB

Download
memory/3764-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3764-9-0x00000000004D0000-0x00000000004DD000-memory.dmp

Filesize
52KB

Download
memory/3764-8-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3764-1-0x00000000004E0000-0x00000000004F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads