tofsee | aab32afff9386da5026e13907bc9b3449ca79216b3bdf027a4f54a399dde7576

General

Target

d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
Size

11.5MB
MD5

d8fee716b4673dbe2860a3cefb3ccf03
SHA1

1649c17a2b4c0d816aeba0b6759afa73b7b4a6d9
SHA256

aab32afff9386da5026e13907bc9b3449ca79216b3bdf027a4f54a399dde7576
SHA512

c8d20e8b80ea466e7ebf3a4b8303f27d9566bacd3614f6b36bca683dc5e54d5aca97aa66897bb70f50072f5d97de27c4702d57764d344399f1bee5e3ba6359b9
SSDEEP

3072:/oiqjV0QCeV75zMwb2EfDXTBrt0c5f+Z7ApWt+0krytpObPUfAGM4H1M4CjiJNx4:/oiqjWHeV9zthDjBrmA+VkDbSAgQiTx

Score

10^/10

tofsee discovery 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
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

4960 netsh.exe

pid	process
4960	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\oaqgfztf\ImagePath = "C:\\Windows\\SysWOW64\\oaqgfztf\\zxmysozp.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:

d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

976 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

zxmysozp.exe

pid process

3652 zxmysozp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

zxmysozp.exe

description pid process target process

PID 3652 set thread context of 976 3652 zxmysozp.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

2100 sc.exe
4840 sc.exe
5000 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
976	svchost.exe

pid	process
3652	zxmysozp.exe

description	pid	process	target process
PID 3652 set thread context of 976	3652	zxmysozp.exe	svchost.exe

pid	process
2100	sc.exe
4840	sc.exe
5000	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

Program crash 6 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
2964	1104	WerFault.exe	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
876	1104	WerFault.exe	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
1720	1104	WerFault.exe	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
3944	3652	WerFault.exe	zxmysozp.exe
4836	3652	WerFault.exe	zxmysozp.exe
2680	3652	WerFault.exe	zxmysozp.exe

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

Processes:

sc.exesc.exenetsh.exesvchost.execmd.execmd.exezxmysozp.exed8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exesc.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	zxmysozp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exezxmysozp.exe

description	pid	process	target process
PID 1104 wrote to memory of 2612	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 2612	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 2612	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 4592	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 4592	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 4592	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	cmd.exe
PID 1104 wrote to memory of 2100	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 2100	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 2100	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 4840	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 4840	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 4840	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 5000	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 5000	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 5000	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	sc.exe
PID 1104 wrote to memory of 4960	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	netsh.exe
PID 1104 wrote to memory of 4960	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	netsh.exe
PID 1104 wrote to memory of 4960	1104	d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe	netsh.exe
PID 3652 wrote to memory of 976	3652	zxmysozp.exe	svchost.exe
PID 3652 wrote to memory of 976	3652	zxmysozp.exe	svchost.exe
PID 3652 wrote to memory of 976	3652	zxmysozp.exe	svchost.exe
PID 3652 wrote to memory of 976	3652	zxmysozp.exe	svchost.exe
PID 3652 wrote to memory of 976	3652	zxmysozp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oaqgfztf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zxmysozp.exe" C:\Windows\SysWOW64\oaqgfztf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oaqgfztf binPath= "C:\Windows\SysWOW64\oaqgfztf\zxmysozp.exe /d\"C:\Users\Admin\AppData\Local\Temp\d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oaqgfztf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oaqgfztf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5000
- 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:4960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 596
  2⤵
  - Program crash
  PID:2964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 756
  2⤵
  - Program crash
  PID:876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1044
  2⤵
  - Program crash
  PID:1720

C:\Windows\SysWOW64\oaqgfztf\zxmysozp.exe
C:\Windows\SysWOW64\oaqgfztf\zxmysozp.exe /d"C:\Users\Admin\AppData\Local\Temp\d8fee716b4673dbe2860a3cefb3ccf03_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 516
  2⤵
  - Program crash
  PID:3944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 536
  2⤵
  - Program crash
  PID:4836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 552
  2⤵
  - Program crash
  PID:2680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1104 -ip 1104
1⤵
PID:3868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1104 -ip 1104
1⤵
PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1104 -ip 1104
1⤵
PID:712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3652 -ip 3652
1⤵
PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3652 -ip 3652
1⤵
PID:4172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3652 -ip 3652
1⤵
PID:4648

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\zxmysozp.exe

Filesize
11.1MB

MD5
6a6ad765ee6b385b39c7a3cd50510704

SHA1
855dddd4c7fdbdb0249210b2a66f3216acf640da

SHA256
63415c3a63d97bf0a155cc2f7598ed25e13d55ac9975b56ef5a56a68fd3339ee

SHA512
a3631475028c862bf1c94131ff14549371dd8473a096f1a5f8e3b4a5d63dff973bfa52f9d0e08a834a13241b6de3739df1486d9aa55f43f0bd320c4edf609673

Download Submit
memory/976-12-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/976-17-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/976-15-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/1104-9-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/1104-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1104-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/1104-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1104-2-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/3652-13-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3652-16-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3652-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads