tofsee | 02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e

General

Target

JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe
Size

341KB
MD5

edb174c9c6f39a28010ba93010e5fe6c
SHA1

8524f85e693835b79b8b6826d920e8ac6a2fa022
SHA256

02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e
SHA512

c01e94ed539bb7f206597d23d0b0a35a9fb339077a4f8dcf6bc33e0fe3db1197d087a56cdee6ae7c4832ef67aa1f6974f852189f4e6058a40d9b5fa3483ba8c3
SSDEEP

6144:GrAfPQiuplIecQmWBLRnGoB2fp1nOAaUK50q:GrAgHUeTmGLRnGoB2fKd5f

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
2092	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\mdrrxlfc\ImagePath = "C:\\Windows\\SysWOW64\\mdrrxlfc\\kljtwpuf.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe

Deletes itself 1 IoCs

pid	Process
4044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3496	kljtwpuf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3496 set thread context of 4044	3496	kljtwpuf.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3724	sc.exe
2324	sc.exe
3624	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
2420	3996	WerFault.exe	81
4732	3496	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kljtwpuf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 4840	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	82
PID 3996 wrote to memory of 4840	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	82
PID 3996 wrote to memory of 4840	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	82
PID 3996 wrote to memory of 2660	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	84
PID 3996 wrote to memory of 2660	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	84
PID 3996 wrote to memory of 2660	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	84
PID 3996 wrote to memory of 3724	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	86
PID 3996 wrote to memory of 3724	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	86
PID 3996 wrote to memory of 3724	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	86
PID 3996 wrote to memory of 2324	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	88
PID 3996 wrote to memory of 2324	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	88
PID 3996 wrote to memory of 2324	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	88
PID 3996 wrote to memory of 3624	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	92
PID 3996 wrote to memory of 3624	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	92
PID 3996 wrote to memory of 3624	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	92
PID 3996 wrote to memory of 2092	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	95
PID 3996 wrote to memory of 2092	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	95
PID 3996 wrote to memory of 2092	3996	JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe	95
PID 3496 wrote to memory of 4044	3496	kljtwpuf.exe	102
PID 3496 wrote to memory of 4044	3496	kljtwpuf.exe	102
PID 3496 wrote to memory of 4044	3496	kljtwpuf.exe	102
PID 3496 wrote to memory of 4044	3496	kljtwpuf.exe	102
PID 3496 wrote to memory of 4044	3496	kljtwpuf.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mdrrxlfc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kljtwpuf.exe" C:\Windows\SysWOW64\mdrrxlfc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mdrrxlfc binPath= "C:\Windows\SysWOW64\mdrrxlfc\kljtwpuf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mdrrxlfc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mdrrxlfc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3624
- 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:2092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 1040
  2⤵
  - Program crash
  PID:2420

C:\Windows\SysWOW64\mdrrxlfc\kljtwpuf.exe
C:\Windows\SysWOW64\mdrrxlfc\kljtwpuf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02f60de1d02c050974a99959911893d5403197d750c27bbfcbddefa78dc1911e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 520
  2⤵
  - Program crash
  PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3996 -ip 3996
1⤵
PID:3172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3496 -ip 3496
1⤵
PID:3476

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\kljtwpuf.exe

Filesize
12.6MB

MD5
2fe579ee594969fd4a2c2c9d88777623

SHA1
0f624c9415ffbd5dd159d196f3796f4cb6bbba69

SHA256
4a83218a3c4ffef1e9383afdf8136176dcffaa6d4a1a6cf16be19f02c8c290ec

SHA512
68b34eeadd2b6cdca412b46a909fb74010ecb227dc55f79c29565a9646bf3442217594312e8a02690018d1ad5bdddef33e5975b9f1f9e70e97d01253a5cba16b

Download Submit
memory/3496-15-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download
memory/3996-1-0x0000000000920000-0x0000000000A20000-memory.dmp

Filesize
1024KB

Download
memory/3996-2-0x0000000000A90000-0x0000000000AA3000-memory.dmp

Filesize
76KB

Download
memory/3996-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3996-7-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download
memory/3996-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3996-8-0x0000000000A90000-0x0000000000AA3000-memory.dmp

Filesize
76KB

Download
memory/4044-11-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4044-13-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4044-14-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads