tofsee | 69f551998396b69211de7617d4be4fb25eba4d5ccf33f7c2305a90a1c592e944

General

Target

1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
Size

10.2MB
MD5

1ab83e7ec4c3ee17c1c634ab184ccb64
SHA1

a17551f428f71a31115b2bfe359180c29467e09f
SHA256

69f551998396b69211de7617d4be4fb25eba4d5ccf33f7c2305a90a1c592e944
SHA512

999892fc83da3165b84eb700276b789fa58573c3146da9c395dc40516c499698426c72db199976bfbbae4ea1a7255440e0ba12dfaf5e7d7a1c4ba6dfbc06364c
SSDEEP

49152:9PQwlooooooooooooooooooooooooooooooooooooooooooooooooooooooooooH:dQ

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\iwkiqsyv = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2716 netsh.exe

pid	process
2716	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\iwkiqsyv\ImagePath = "C:\\Windows\\SysWOW64\\iwkiqsyv\\psqlfmwg.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2576 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

psqlfmwg.exe

pid process

2708 psqlfmwg.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

psqlfmwg.exe

description pid process target process

PID 2708 set thread context of 2576 2708 psqlfmwg.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

2776 sc.exe
2888 sc.exe
2752 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2576	svchost.exe

pid	process
2708	psqlfmwg.exe

description	pid	process	target process
PID 2708 set thread context of 2576	2708	psqlfmwg.exe	svchost.exe

pid	process
2776	sc.exe
2888	sc.exe
2752	sc.exe

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

Processes:

netsh.exe

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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exepsqlfmwg.exe

description	pid	process	target process
PID 2452 wrote to memory of 2832	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2832	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2832	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2832	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2620	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2620	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2620	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2620	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 2452 wrote to memory of 2776	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2776	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2776	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2776	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2888	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2888	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2888	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2888	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2752	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2752	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2752	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2752	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 2452 wrote to memory of 2716	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 2452 wrote to memory of 2716	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 2452 wrote to memory of 2716	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 2452 wrote to memory of 2716	2452	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe
PID 2708 wrote to memory of 2576	2708	psqlfmwg.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2452

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iwkiqsyv\
2⤵
PID:2832

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\psqlfmwg.exe" C:\Windows\SysWOW64\iwkiqsyv\
2⤵
PID:2620

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create iwkiqsyv binPath= "C:\Windows\SysWOW64\iwkiqsyv\psqlfmwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2776

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description iwkiqsyv "wifi internet conection"
2⤵
- Launches sc.exe
PID:2888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start iwkiqsyv
2⤵
- Launches sc.exe
PID:2752

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
PID:2716

C:\Windows\SysWOW64\iwkiqsyv\psqlfmwg.exe
C:\Windows\SysWOW64\iwkiqsyv\psqlfmwg.exe /d"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2708

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2576

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\psqlfmwg.exe

Filesize
11.7MB

MD5
e2bdd6947e7851210ca3bfc0d05d1d06

SHA1
75de6fd7c18109e1318543c455c35cec40a40378

SHA256
6c52b3b4bc4856447203572e8ee7083dbd5e51bb9aaa6d35d0b2acf36f0ae669

SHA512
0ef3cf33e97b9730a68387b428a433dfdf3023cc81362b26e4ff57d75e2a19134773cbed3dea8234b4b0859041d23a3a9515b46364952697e39d37ba1b0b7033

Download Submit
memory/2452-8-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/2452-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2452-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2452-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2452-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2452-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/2576-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2576-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2576-16-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2576-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads