tofsee | c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a

General

Target

JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe
Size

164KB
MD5

d734569001b69222d805738edfc47168
SHA1

f4879b2f7c66698f0debcc545836e8a6d63a7cec
SHA256

c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a
SHA512

a78389a5b03ebed89ac85f2be37bcbcbfd03c02e5fe89e504ad4f9162162a1ad3080a8ff93ad1b94dafae525d18498c17cb2b7842ec533ae0676f4a16b2c0977
SSDEEP

3072:mQOLRBnPGJFSBbG8PnQoa8kZwc46B4OqXXs4zyAPKYCUkO2:lOdBnPGSR/Qoa8pq8s4zysdCUkB

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
1312	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\qvrsmcae\ImagePath = "C:\\Windows\\SysWOW64\\qvrsmcae\\jtylsnmb.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe

Deletes itself 1 IoCs

pid	Process
4500	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3644	jtylsnmb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3644 set thread context of 4500	3644	jtylsnmb.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1188	sc.exe
2272	sc.exe
208	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3156	4700	WerFault.exe	82
4408	3644	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	jtylsnmb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 4656	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	83
PID 4700 wrote to memory of 4656	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	83
PID 4700 wrote to memory of 4656	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	83
PID 4700 wrote to memory of 2352	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	85
PID 4700 wrote to memory of 2352	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	85
PID 4700 wrote to memory of 2352	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	85
PID 4700 wrote to memory of 1188	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	87
PID 4700 wrote to memory of 1188	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	87
PID 4700 wrote to memory of 1188	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	87
PID 4700 wrote to memory of 2272	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	89
PID 4700 wrote to memory of 2272	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	89
PID 4700 wrote to memory of 2272	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	89
PID 4700 wrote to memory of 208	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	91
PID 4700 wrote to memory of 208	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	91
PID 4700 wrote to memory of 208	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	91
PID 4700 wrote to memory of 1312	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	94
PID 4700 wrote to memory of 1312	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	94
PID 4700 wrote to memory of 1312	4700	JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe	94
PID 3644 wrote to memory of 4500	3644	jtylsnmb.exe	97
PID 3644 wrote to memory of 4500	3644	jtylsnmb.exe	97
PID 3644 wrote to memory of 4500	3644	jtylsnmb.exe	97
PID 3644 wrote to memory of 4500	3644	jtylsnmb.exe	97
PID 3644 wrote to memory of 4500	3644	jtylsnmb.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qvrsmcae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jtylsnmb.exe" C:\Windows\SysWOW64\qvrsmcae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qvrsmcae binPath= "C:\Windows\SysWOW64\qvrsmcae\jtylsnmb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qvrsmcae "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qvrsmcae
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:208
- 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:1312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 1040
  2⤵
  - Program crash
  PID:3156

C:\Windows\SysWOW64\qvrsmcae\jtylsnmb.exe
C:\Windows\SysWOW64\qvrsmcae\jtylsnmb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c36d92eb67d8771a4fa4f2c7bd8c1b12d0ea8645fab45b3321000a9941e7304a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 572
  2⤵
  - Program crash
  PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3644 -ip 3644
1⤵
PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4700 -ip 4700
1⤵
PID:4588

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\jtylsnmb.exe

Filesize
14.0MB

MD5
0f8eaf9e2b588dcfe0f2c2fccdbcaa5e

SHA1
a50c8aea2c4bb49709d67155d057ccadffd8da1c

SHA256
497ca9cd502d917994ca9ecd82cfdd18887d7a81cf46fe2b1003476df34a8bd8

SHA512
089560c1c3214d5a52954cd593ac6a55e6df338899f2192070c5aaba9d8a0b9686fb02ac2226f0c8ee7f779016615b625479ea188fb9658901166fee6c3b065c

Download Submit
memory/3644-17-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3644-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3644-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4500-20-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4500-19-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4500-8-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4500-11-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4500-18-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4700-12-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4700-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4700-14-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/4700-13-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/4700-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/4700-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4700-1-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads