tofsee | 7050047856783f62328b7b24667fae2d7e47a191850621e722f61a594a582504

General

Target

d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe
Size

11.2MB
MD5

d42410905ebfc55ce307d651eb9aed87
SHA1

37595c2197d96f4b0ce890566f40fdea09fcda3c
SHA256

7050047856783f62328b7b24667fae2d7e47a191850621e722f61a594a582504
SHA512

d03075e2a85b1241a369d95b58143702bb88478959a8023aaee90155ab7299d19243e164017a71f2d79a056e429684efb9baaa8c8e6385ba195c888f7d1bdc71
SSDEEP

196608:g5qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqX:g

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
2404	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\ljzzccok\ImagePath = "C:\\Windows\\SysWOW64\\ljzzccok\\nzgaflyg.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2400	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4504	nzgaflyg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4504 set thread context of 2400	4504	nzgaflyg.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1412	sc.exe
5028	sc.exe
4936	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
4780	680	WerFault.exe	82
3984	4504	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nzgaflyg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.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	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 680 wrote to memory of 2508	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	83
PID 680 wrote to memory of 2508	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	83
PID 680 wrote to memory of 2508	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	83
PID 680 wrote to memory of 412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	85
PID 680 wrote to memory of 412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	85
PID 680 wrote to memory of 412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	85
PID 680 wrote to memory of 1412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	87
PID 680 wrote to memory of 1412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	87
PID 680 wrote to memory of 1412	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	87
PID 680 wrote to memory of 5028	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	90
PID 680 wrote to memory of 5028	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	90
PID 680 wrote to memory of 5028	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	90
PID 680 wrote to memory of 4936	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	92
PID 680 wrote to memory of 4936	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	92
PID 680 wrote to memory of 4936	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	92
PID 680 wrote to memory of 2404	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	95
PID 680 wrote to memory of 2404	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	95
PID 680 wrote to memory of 2404	680	d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe	95
PID 4504 wrote to memory of 2400	4504	nzgaflyg.exe	101
PID 4504 wrote to memory of 2400	4504	nzgaflyg.exe	101
PID 4504 wrote to memory of 2400	4504	nzgaflyg.exe	101
PID 4504 wrote to memory of 2400	4504	nzgaflyg.exe	101
PID 4504 wrote to memory of 2400	4504	nzgaflyg.exe	101

C:\Users\Admin\AppData\Local\Temp\d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ljzzccok\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzgaflyg.exe" C:\Windows\SysWOW64\ljzzccok\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ljzzccok binPath= "C:\Windows\SysWOW64\ljzzccok\nzgaflyg.exe /d\"C:\Users\Admin\AppData\Local\Temp\d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ljzzccok "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ljzzccok
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4936
- 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:2404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 680 -s 1040
  2⤵
  - Program crash
  PID:4780

C:\Windows\SysWOW64\ljzzccok\nzgaflyg.exe
C:\Windows\SysWOW64\ljzzccok\nzgaflyg.exe /d"C:\Users\Admin\AppData\Local\Temp\d42410905ebfc55ce307d651eb9aed87_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 512
  2⤵
  - Program crash
  PID:3984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 680 -ip 680
1⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4504 -ip 4504
1⤵
PID:2652

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\nzgaflyg.exe

Filesize
13.5MB

MD5
14d7a0028961e9d8dfacb3a3ce8fd698

SHA1
134ef5f41726f674b64caf180d50b91cc294a9c5

SHA256
56e1d791bd25445e71fbd27285e7062d57bda816e5cdb761a3fae0b644a215a7

SHA512
a1151a76056a043f5d1a5248e41427d8541da6101e125752b86db6f56b35c19361c4c5c9269ab934db60ea7291729863ba029ec5429988e33bf1aebc5c30d965

Download Submit
memory/680-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/680-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/680-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/680-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/680-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/680-1-0x0000000000B20000-0x0000000000C20000-memory.dmp

Filesize
1024KB

Download
memory/2400-13-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2400-16-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2400-17-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/4504-11-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4504-12-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4504-14-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4504-19-0x0000000000400000-0x0000000000871000-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