tofsee | 5aeb6defea1c4f76eead2ea4491eddae43eb4cf08e5324c1eeb7ecfc2a98f7da

General

Target

da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe
Size

12.6MB
MD5

da4efa4dc0e8934cd7c4403bde140eb9
SHA1

f5af5f0393a2a75691da8831486d6bd3520dda66
SHA256

5aeb6defea1c4f76eead2ea4491eddae43eb4cf08e5324c1eeb7ecfc2a98f7da
SHA512

0fdad19c9bbe52715c265ba5dd0f2d5171a37cb1f573a66eed52c9fdde3aaef0523471b6579a9fbf00b925566d306aa7da9a2846dbca2d62bfc02863e7d21216
SSDEEP

98304:EuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuK:

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

1820 netsh.exe

pid	process
1820	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\juumaefc\ImagePath = "C:\\Windows\\SysWOW64\\juumaefc\\zpkwqcgy.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:

da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

532 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

zpkwqcgy.exe

pid process

2404 zpkwqcgy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

zpkwqcgy.exe

description pid process target process

PID 2404 set thread context of 532 2404 zpkwqcgy.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

2148 sc.exe
2544 sc.exe
4824 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
532	svchost.exe

pid	process
2404	zpkwqcgy.exe

description	pid	process	target process
PID 2404 set thread context of 532	2404	zpkwqcgy.exe	svchost.exe

pid	process
2148	sc.exe
2544	sc.exe
4824	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 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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3324 3432 WerFault.exe da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe
4848 2404 WerFault.exe zpkwqcgy.exe

pid	pid_target	process	target process
3324	3432	WerFault.exe	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe
4848	2404	WerFault.exe	zpkwqcgy.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:

cmd.exenetsh.exezpkwqcgy.exesc.exesvchost.exeda4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.execmd.exesc.exesc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zpkwqcgy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exezpkwqcgy.exe

description	pid	process	target process
PID 3432 wrote to memory of 4316	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 4316	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 4316	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 5116	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 5116	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 5116	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	cmd.exe
PID 3432 wrote to memory of 4824	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 4824	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 4824	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2148	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2148	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2148	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2544	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2544	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 2544	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	sc.exe
PID 3432 wrote to memory of 1820	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	netsh.exe
PID 3432 wrote to memory of 1820	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	netsh.exe
PID 3432 wrote to memory of 1820	3432	da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe	netsh.exe
PID 2404 wrote to memory of 532	2404	zpkwqcgy.exe	svchost.exe
PID 2404 wrote to memory of 532	2404	zpkwqcgy.exe	svchost.exe
PID 2404 wrote to memory of 532	2404	zpkwqcgy.exe	svchost.exe
PID 2404 wrote to memory of 532	2404	zpkwqcgy.exe	svchost.exe
PID 2404 wrote to memory of 532	2404	zpkwqcgy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\juumaefc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zpkwqcgy.exe" C:\Windows\SysWOW64\juumaefc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create juumaefc binPath= "C:\Windows\SysWOW64\juumaefc\zpkwqcgy.exe /d\"C:\Users\Admin\AppData\Local\Temp\da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description juumaefc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start juumaefc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2544
- 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:1820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1036
  2⤵
  - Program crash
  PID:3324

C:\Windows\SysWOW64\juumaefc\zpkwqcgy.exe
C:\Windows\SysWOW64\juumaefc\zpkwqcgy.exe /d"C:\Users\Admin\AppData\Local\Temp\da4efa4dc0e8934cd7c4403bde140eb9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 528
  2⤵
  - Program crash
  PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3432 -ip 3432
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2404 -ip 2404
1⤵
PID:4632

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\zpkwqcgy.exe

Filesize
11.7MB

MD5
d01563d7011d013e0da8a12567b29b3a

SHA1
f762d40a8099c29be46c7ad1b63fd1b15f3fdbc9

SHA256
55846e262a646bd19e4f61e549c4c6df7d12140d753a3470cf047982155b0308

SHA512
f8332e908a057781880d9d09b65630f2eac26b9d9d5f56b6dab7572b03c0421b703daf1cba05152acdeb008596970199fc0319f205515453b9513bbedc3375ef

Download Submit
memory/532-14-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/532-17-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/532-16-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/2404-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2404-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2404-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2404-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3432-9-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download
memory/3432-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3432-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/3432-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3432-2-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads