tofsee | 447e116c206c6b28e3447d54d271eba35db13bae7edaa673cfa9cc207db05ea7

General

Target

04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe
Size

11.3MB
MD5

04e17a3cf981140f0babf1eba3b1a30a
SHA1

1d72cbeadca5d725f63dc51e8bbcb8ec1af5805c
SHA256

447e116c206c6b28e3447d54d271eba35db13bae7edaa673cfa9cc207db05ea7
SHA512

8095d51b0ec02e2528c38b7770758aef4d3b8106cd0dce4912dcedb32d7d88d980e38e66474116d3a55d9955044d4f9f8dbf8ee96154982a24ee2065f262e7fb
SSDEEP

6144:j5VCb4QuzFRpIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz7:F8NKFRp

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

3160 netsh.exe

pid	process
3160	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ucvfwlos\ImagePath = "C:\\Windows\\SysWOW64\\ucvfwlos\\qhadkxji.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

Processes:

04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2616 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qhadkxji.exe

pid process

2720 qhadkxji.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qhadkxji.exe

description pid process target process

PID 2720 set thread context of 2616 2720 qhadkxji.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

692 sc.exe
5088 sc.exe
3172 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2616	svchost.exe

pid	process
2720	qhadkxji.exe

description	pid	process	target process
PID 2720 set thread context of 2616	2720	qhadkxji.exe	svchost.exe

pid	process
692	sc.exe
5088	sc.exe
3172	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exeqhadkxji.exe

description	pid	process	target process
PID 212 wrote to memory of 556	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 556	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 556	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 704	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 704	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 704	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 692	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 692	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 692	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 5088	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 5088	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 5088	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 3172	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 3172	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 3172	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	sc.exe
PID 2720 wrote to memory of 2616	2720	qhadkxji.exe	svchost.exe
PID 2720 wrote to memory of 2616	2720	qhadkxji.exe	svchost.exe
PID 2720 wrote to memory of 2616	2720	qhadkxji.exe	svchost.exe
PID 2720 wrote to memory of 2616	2720	qhadkxji.exe	svchost.exe
PID 2720 wrote to memory of 2616	2720	qhadkxji.exe	svchost.exe
PID 212 wrote to memory of 3160	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	netsh.exe
PID 212 wrote to memory of 3160	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	netsh.exe
PID 212 wrote to memory of 3160	212	04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:212

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ucvfwlos\
2⤵
PID:556

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhadkxji.exe" C:\Windows\SysWOW64\ucvfwlos\
2⤵
PID:704

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ucvfwlos binPath= "C:\Windows\SysWOW64\ucvfwlos\qhadkxji.exe /d\"C:\Users\Admin\AppData\Local\Temp\04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:692

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ucvfwlos "wifi internet conection"
2⤵
- Launches sc.exe
PID:5088

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ucvfwlos
2⤵
- Launches sc.exe
PID:3172

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
PID:3160

C:\Windows\SysWOW64\ucvfwlos\qhadkxji.exe
C:\Windows\SysWOW64\ucvfwlos\qhadkxji.exe /d"C:\Users\Admin\AppData\Local\Temp\04e17a3cf981140f0babf1eba3b1a30a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2720

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2616

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\qhadkxji.exe
Filesize
13.5MB

MD5
1822e3d3d51df482f9c35a92bb66d032

SHA1
d6e7cdff8047743f4e0418a5eae3c70ac6bed4c5

SHA256
920fd6522a047f6922285bf52e229927a9a053c2d9821b25da54fc7ad69a87fa

SHA512
9ad17e086efdec98f9bcda6679f7905919d7145e13cffa647b9a8b42367b4ad5f6b2d07573ba0eb43082d9486f1b632b4d0f6336261c77957d695937315c89b8

Download Submit
memory/2616-3-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/2616-6-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/2616-7-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/2616-8-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/2616-9-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads