tofsee | 59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d

General

Target

JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe
Size

327KB
MD5

6f1d253c3614753b87aab018fa163871
SHA1

903ffbf67398e8ded5dae30767f65bf6958126de
SHA256

59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d
SHA512

a46e9e740799991c44d7d707c2770b4b7df756d8833a8a37fc83d6855383cec3e337cd485eee147f7c70ca88f0667f0f81a20cccb593f3e237d7805d2c682188
SSDEEP

6144:taBO3imrOouSABnevchIagXe6l2uAzBlHMSWZFq:YG1OouSQqcqaoe6l+BtlW

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
2712	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\nlqcmcrl\ImagePath = "C:\\Windows\\SysWOW64\\nlqcmcrl\\vazxntcr.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe

Deletes itself 1 IoCs

pid	Process
3896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3128	vazxntcr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3128 set thread context of 3896	3128	vazxntcr.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3768	sc.exe
3712	sc.exe
3732	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
940	1656	WerFault.exe	80
4968	3128	WerFault.exe	91

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	vazxntcr.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	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	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 1112	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	81
PID 1656 wrote to memory of 1112	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	81
PID 1656 wrote to memory of 1112	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	81
PID 1656 wrote to memory of 476	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	83
PID 1656 wrote to memory of 476	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	83
PID 1656 wrote to memory of 476	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	83
PID 1656 wrote to memory of 3768	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	85
PID 1656 wrote to memory of 3768	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	85
PID 1656 wrote to memory of 3768	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	85
PID 1656 wrote to memory of 3712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	87
PID 1656 wrote to memory of 3712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	87
PID 1656 wrote to memory of 3712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	87
PID 1656 wrote to memory of 3732	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	89
PID 1656 wrote to memory of 3732	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	89
PID 1656 wrote to memory of 3732	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	89
PID 1656 wrote to memory of 2712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	94
PID 1656 wrote to memory of 2712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	94
PID 1656 wrote to memory of 2712	1656	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	94
PID 3128 wrote to memory of 3896	3128	vazxntcr.exe	101
PID 3128 wrote to memory of 3896	3128	vazxntcr.exe	101
PID 3128 wrote to memory of 3896	3128	vazxntcr.exe	101
PID 3128 wrote to memory of 3896	3128	vazxntcr.exe	101
PID 3128 wrote to memory of 3896	3128	vazxntcr.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nlqcmcrl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vazxntcr.exe" C:\Windows\SysWOW64\nlqcmcrl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nlqcmcrl binPath= "C:\Windows\SysWOW64\nlqcmcrl\vazxntcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nlqcmcrl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nlqcmcrl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3732
- 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:2712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1036
  2⤵
  - Program crash
  PID:940

C:\Windows\SysWOW64\nlqcmcrl\vazxntcr.exe
C:\Windows\SysWOW64\nlqcmcrl\vazxntcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3128
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 516
  2⤵
  - Program crash
  PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1656 -ip 1656
1⤵
PID:1652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3128 -ip 3128
1⤵
PID:3424

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\vazxntcr.exe

Filesize
11.6MB

MD5
232f2633be0fbda0f87e0970ac0de7f5

SHA1
7aa390cea526ab5a22e49bb93a0f289699340068

SHA256
cf20c8b5f3a5c4c5e4bc9200c1fecb044f8e52da14ec41d9c843ec949f2cd185

SHA512
9872390cf8677c632273dd1ac315d3e9cae585f87c1b0ff8dfbd54e903fd03bfbc6f815f0683c9d8563b1929d43371e9c0b54dad3ce8564caea24c2ce616d216

Download Submit
memory/1656-1-0x00000000026D0000-0x00000000027D0000-memory.dmp

Filesize
1024KB

Download
memory/1656-2-0x0000000002530000-0x0000000002543000-memory.dmp

Filesize
76KB

Download
memory/1656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1656-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1656-8-0x0000000002530000-0x0000000002543000-memory.dmp

Filesize
76KB

Download
memory/1656-7-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download
memory/3128-15-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download
memory/3896-11-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/3896-13-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/3896-14-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads