tofsee | e3dd0a078e3b5f532c6b5b3254eea71e4afac1eda00d349d6fc5582d2c3487e8

General

Target

JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe
Size

12.2MB
MD5

8976781b9e1d6f794b30de6a350d5d4c
SHA1

3a1c95ac27d57dbc147ffda590c9e6645a402619
SHA256

e3dd0a078e3b5f532c6b5b3254eea71e4afac1eda00d349d6fc5582d2c3487e8
SHA512

f98d91c0b7c1f2fe4bf777a7e850453710c5dd0129daa8b5bd2e94c689cf597424b2d87201068d73534dc794ffd145540888dfa84b9ac67b9a8c354b1c0be5b8
SSDEEP

12288:MQ50bBoofipGZdIjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjH:MQTooy

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
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
2512	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\qdsxlqvd\ImagePath = "C:\\Windows\\SysWOW64\\qdsxlqvd\\amtnsylt.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe

Deletes itself 1 IoCs

pid	Process
4548	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2284	amtnsylt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2284 set thread context of 4548	2284	amtnsylt.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
5024	sc.exe
5084	sc.exe
1028	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
4856	3820	WerFault.exe	81
2780	2284	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	amtnsylt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 444	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	82
PID 3820 wrote to memory of 444	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	82
PID 3820 wrote to memory of 444	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	82
PID 3820 wrote to memory of 4248	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	84
PID 3820 wrote to memory of 4248	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	84
PID 3820 wrote to memory of 4248	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	84
PID 3820 wrote to memory of 5024	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	86
PID 3820 wrote to memory of 5024	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	86
PID 3820 wrote to memory of 5024	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	86
PID 3820 wrote to memory of 5084	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	88
PID 3820 wrote to memory of 5084	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	88
PID 3820 wrote to memory of 5084	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	88
PID 3820 wrote to memory of 1028	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	90
PID 3820 wrote to memory of 1028	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	90
PID 3820 wrote to memory of 1028	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	90
PID 3820 wrote to memory of 2512	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	93
PID 3820 wrote to memory of 2512	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	93
PID 3820 wrote to memory of 2512	3820	JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe	93
PID 2284 wrote to memory of 4548	2284	amtnsylt.exe	98
PID 2284 wrote to memory of 4548	2284	amtnsylt.exe	98
PID 2284 wrote to memory of 4548	2284	amtnsylt.exe	98
PID 2284 wrote to memory of 4548	2284	amtnsylt.exe	98
PID 2284 wrote to memory of 4548	2284	amtnsylt.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qdsxlqvd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amtnsylt.exe" C:\Windows\SysWOW64\qdsxlqvd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qdsxlqvd binPath= "C:\Windows\SysWOW64\qdsxlqvd\amtnsylt.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qdsxlqvd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qdsxlqvd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- 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:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 1268
  2⤵
  - Program crash
  PID:4856

C:\Windows\SysWOW64\qdsxlqvd\amtnsylt.exe
C:\Windows\SysWOW64\qdsxlqvd\amtnsylt.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8976781b9e1d6f794b30de6a350d5d4c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 532
  2⤵
  - Program crash
  PID:2780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3820 -ip 3820
1⤵
PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2284 -ip 2284
1⤵
PID:4292

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\amtnsylt.exe

Filesize
13.7MB

MD5
3a309b517d4e9308efac501863fcaad5

SHA1
4b37fb5115e05efdc99bf0cdc1356396c5f8bfa9

SHA256
2388324056d718573d9221045079489f81fd6f81fbc6394219584a24a4c49709

SHA512
4741884c191445cde64052d91a15df14d6ea0227adc4522ff3cd2aa984ae029f4e2aeeef0e6ad5b28601fb7faf300e15a8632816ff2ffb7f1caf0a5f259dc479

Download Submit
memory/2284-12-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2284-15-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3820-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

Filesize
1024KB

Download
memory/3820-2-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download
memory/3820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3820-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3820-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3820-9-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download
memory/4548-11-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/4548-14-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/4548-16-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads