tofsee | f757ceb07ad1a7d8f37e182181a8264adc0ba6c4945911b98620b2c09393e210

General

Target

1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe
Size

11.2MB
MD5

1f36b2a211561d23f8ea7372a60e8a4b
SHA1

e6917bd75a288889f21179e6f4373efcf9e91816
SHA256

f757ceb07ad1a7d8f37e182181a8264adc0ba6c4945911b98620b2c09393e210
SHA512

cd0328d2b354b982a742750701c220eaac2e3eca88d41d08c57bf3414e8ef13d135cedd2491ab834b30a7e9e7d52a9a682098f00ae52e704a007976f974d34b2
SSDEEP

49152:5lGypVbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:5lGyp

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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

pid	Process
1284	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\aqcbzhwu\ImagePath = "C:\\Windows\\SysWOW64\\aqcbzhwu\\hguwkhia.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	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2132	hguwkhia.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 2264	2132	hguwkhia.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
5012	sc.exe
4348	sc.exe
860	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
1468	4980	WerFault.exe	81
1976	2132	WerFault.exe	95

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hguwkhia.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

description	pid	Process	procid_target
PID 4980 wrote to memory of 2024	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	85
PID 4980 wrote to memory of 2024	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	85
PID 4980 wrote to memory of 2024	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	85
PID 4980 wrote to memory of 1536	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	87
PID 4980 wrote to memory of 1536	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	87
PID 4980 wrote to memory of 1536	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	87
PID 4980 wrote to memory of 5012	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	89
PID 4980 wrote to memory of 5012	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	89
PID 4980 wrote to memory of 5012	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	89
PID 4980 wrote to memory of 4348	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	91
PID 4980 wrote to memory of 4348	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	91
PID 4980 wrote to memory of 4348	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	91
PID 4980 wrote to memory of 860	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	93
PID 4980 wrote to memory of 860	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	93
PID 4980 wrote to memory of 860	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	93
PID 4980 wrote to memory of 1284	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	96
PID 4980 wrote to memory of 1284	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	96
PID 4980 wrote to memory of 1284	4980	1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe	96
PID 2132 wrote to memory of 2264	2132	hguwkhia.exe	101
PID 2132 wrote to memory of 2264	2132	hguwkhia.exe	101
PID 2132 wrote to memory of 2264	2132	hguwkhia.exe	101
PID 2132 wrote to memory of 2264	2132	hguwkhia.exe	101
PID 2132 wrote to memory of 2264	2132	hguwkhia.exe	101

C:\Users\Admin\AppData\Local\Temp\1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aqcbzhwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hguwkhia.exe" C:\Windows\SysWOW64\aqcbzhwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aqcbzhwu binPath= "C:\Windows\SysWOW64\aqcbzhwu\hguwkhia.exe /d\"C:\Users\Admin\AppData\Local\Temp\1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aqcbzhwu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aqcbzhwu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:860
- 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:1284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 1304
  2⤵
  - Program crash
  PID:1468

C:\Windows\SysWOW64\aqcbzhwu\hguwkhia.exe
C:\Windows\SysWOW64\aqcbzhwu\hguwkhia.exe /d"C:\Users\Admin\AppData\Local\Temp\1f36b2a211561d23f8ea7372a60e8a4b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 516
  2⤵
  - Program crash
  PID:1976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4980 -ip 4980
1⤵
PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2132 -ip 2132
1⤵
PID:760

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\hguwkhia.exe

Filesize
11.8MB

MD5
f4040fec0fe14d5cecd0cedf15357e4f

SHA1
4a9d4077550af33e116407e2228572d807dacf7b

SHA256
b2005d3ca0c85383bd6dec3af58245310af345b2349f79b28722c51f089ef917

SHA512
72177dfb573f6477c065db620079c30b2468e2d16765d2a388cf985a1fd9e751ba150fa0712d5df91357fdf74e289821ab9215a5596ed7550b4d71267966d983

Download Submit
memory/2132-9-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2132-15-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2132-8-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2264-10-0x0000000000ED0000-0x0000000000EE5000-memory.dmp

Filesize
84KB

Download
memory/2264-16-0x0000000000ED0000-0x0000000000EE5000-memory.dmp

Filesize
84KB

Download
memory/2264-17-0x0000000000ED0000-0x0000000000EE5000-memory.dmp

Filesize
84KB

Download
memory/4980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4980-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/4980-13-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4980-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4980-12-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4980-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads