tofsee | 3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c

General

Target

JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe
Size

333KB
MD5

93085b8c3f03829fe5c2d7c2c63d8cf3
SHA1

cb2ced04dc921e9ad5668238b6b438e8705fd3e6
SHA256

3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c
SHA512

070c54fda3a741c508fe3224883a18a9f219d0c4d633497a0dab368d6cc74843e916f9af41c54531a3204941cb29c765aa3f00e69e60d974cbbc177a02f52043
SSDEEP

6144:BoFge0thkcRZhJOdKU1QrHpbSmI8WmL5B:OSvtOcRZXOdKU1qJbSmUg

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
5052	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\qcpksutk\ImagePath = "C:\\Windows\\SysWOW64\\qcpksutk\\bktbphpy.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe

Deletes itself 1 IoCs

pid	Process
4744	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3672	bktbphpy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3672 set thread context of 4744	3672	bktbphpy.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3376	sc.exe
4108	sc.exe
3728	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
884	4024	WerFault.exe	82
1572	3672	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.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	bktbphpy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 2420	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	84
PID 4024 wrote to memory of 2420	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	84
PID 4024 wrote to memory of 2420	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	84
PID 4024 wrote to memory of 1944	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	86
PID 4024 wrote to memory of 1944	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	86
PID 4024 wrote to memory of 1944	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	86
PID 4024 wrote to memory of 3376	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	88
PID 4024 wrote to memory of 3376	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	88
PID 4024 wrote to memory of 3376	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	88
PID 4024 wrote to memory of 4108	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	90
PID 4024 wrote to memory of 4108	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	90
PID 4024 wrote to memory of 4108	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	90
PID 4024 wrote to memory of 3728	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	92
PID 4024 wrote to memory of 3728	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	92
PID 4024 wrote to memory of 3728	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	92
PID 4024 wrote to memory of 5052	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	95
PID 4024 wrote to memory of 5052	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	95
PID 4024 wrote to memory of 5052	4024	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	95
PID 3672 wrote to memory of 4744	3672	bktbphpy.exe	101
PID 3672 wrote to memory of 4744	3672	bktbphpy.exe	101
PID 3672 wrote to memory of 4744	3672	bktbphpy.exe	101
PID 3672 wrote to memory of 4744	3672	bktbphpy.exe	101
PID 3672 wrote to memory of 4744	3672	bktbphpy.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qcpksutk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bktbphpy.exe" C:\Windows\SysWOW64\qcpksutk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qcpksutk binPath= "C:\Windows\SysWOW64\qcpksutk\bktbphpy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qcpksutk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qcpksutk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3728
- 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:5052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1188
  2⤵
  - Program crash
  PID:884

C:\Windows\SysWOW64\qcpksutk\bktbphpy.exe
C:\Windows\SysWOW64\qcpksutk\bktbphpy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 532
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4024 -ip 4024
1⤵
PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3672 -ip 3672
1⤵
PID:3296

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\bktbphpy.exe

Filesize
11.4MB

MD5
732bfba2d3df6936486dc87c3a596537

SHA1
c152ab10ceb43796f315c886fb359f2e9afbea63

SHA256
510d48e4c2364745b3f2777ae8bcbf18b2d5039593eea7cf455606ce6143e79d

SHA512
b2896aaaef15aae110caa83bcb07652369b5be453a80d7899963dbb005430b7bf3fdf7a567700f223fde696502d6f5ce2d9430e70088f44be7c7558386552b4d

Download Submit
memory/3672-15-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/4024-1-0x0000000002B70000-0x0000000002C70000-memory.dmp

Filesize
1024KB

Download
memory/4024-2-0x00000000048A0000-0x00000000048B3000-memory.dmp

Filesize
76KB

Download
memory/4024-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4024-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4024-8-0x00000000048A0000-0x00000000048B3000-memory.dmp

Filesize
76KB

Download
memory/4024-7-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/4744-11-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/4744-13-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/4744-14-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads