tofsee | aff201b2d0bae43cb9142bb08c4310cdf6c05e2cbc90476ad2f3975bd4614aea

General

Target

88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe
Size

13.5MB
MD5

88cc20a3d0f8245e86acacc144354ec3
SHA1

fa61201bf5ccc7b953f6800b5d124454c18c2a63
SHA256

aff201b2d0bae43cb9142bb08c4310cdf6c05e2cbc90476ad2f3975bd4614aea
SHA512

1cf2ca43855f4e87a27d276840e6699e288d231c89ae59c07708486e63bddf6a90726b3a032e2ab1fe58316072158292344a1ef94d8f1e2d25dae6286fc9ea11
SSDEEP

49152:vGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGH:

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\qnmvacgp\ImagePath = "C:\\Windows\\SysWOW64\\qnmvacgp\\dtoaugkc.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2896	dtoaugkc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 3264	2896	dtoaugkc.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4820	sc.exe
4816	sc.exe
1244	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
1112	4368	WerFault.exe	83
1852	2896	WerFault.exe	101

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	dtoaugkc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	88cc20a3d0f8245e86acacc144354ec3_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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 2688	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	87
PID 4368 wrote to memory of 2688	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	87
PID 4368 wrote to memory of 2688	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	87
PID 4368 wrote to memory of 3776	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	89
PID 4368 wrote to memory of 3776	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	89
PID 4368 wrote to memory of 3776	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	89
PID 4368 wrote to memory of 4820	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	93
PID 4368 wrote to memory of 4820	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	93
PID 4368 wrote to memory of 4820	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	93
PID 4368 wrote to memory of 4816	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	95
PID 4368 wrote to memory of 4816	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	95
PID 4368 wrote to memory of 4816	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	95
PID 4368 wrote to memory of 1244	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	99
PID 4368 wrote to memory of 1244	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	99
PID 4368 wrote to memory of 1244	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	99
PID 4368 wrote to memory of 2512	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	102
PID 4368 wrote to memory of 2512	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	102
PID 4368 wrote to memory of 2512	4368	88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe	102
PID 2896 wrote to memory of 3264	2896	dtoaugkc.exe	108
PID 2896 wrote to memory of 3264	2896	dtoaugkc.exe	108
PID 2896 wrote to memory of 3264	2896	dtoaugkc.exe	108
PID 2896 wrote to memory of 3264	2896	dtoaugkc.exe	108
PID 2896 wrote to memory of 3264	2896	dtoaugkc.exe	108

C:\Users\Admin\AppData\Local\Temp\88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qnmvacgp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dtoaugkc.exe" C:\Windows\SysWOW64\qnmvacgp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qnmvacgp binPath= "C:\Windows\SysWOW64\qnmvacgp\dtoaugkc.exe /d\"C:\Users\Admin\AppData\Local\Temp\88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qnmvacgp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qnmvacgp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1244
- 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 4368 -s 1036
  2⤵
  - Program crash
  PID:1112

C:\Windows\SysWOW64\qnmvacgp\dtoaugkc.exe
C:\Windows\SysWOW64\qnmvacgp\dtoaugkc.exe /d"C:\Users\Admin\AppData\Local\Temp\88cc20a3d0f8245e86acacc144354ec3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 512
  2⤵
  - Program crash
  PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4368 -ip 4368
1⤵
PID:3940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2896 -ip 2896
1⤵
PID:416

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\dtoaugkc.exe

Filesize
11.5MB

MD5
84b043c994897b862dd40d5cc9f04d88

SHA1
651a1e698c5f1be60aa47b10da7609a612c7e6a0

SHA256
263ea102c28f2506534f0917d0e04661139d20e9a206acaddaf307946b6b2bea

SHA512
56cb6b7091f1a6147c9ee7aef89b4b3a39d51b778556ecbbc8adc7d254a46e95a318c5de079ab30c328077df0af51a05dcb1cfedb21dcfb86410bc326574f453

Download Submit
memory/2896-13-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2896-12-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2896-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2896-18-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3264-14-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3264-16-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3264-17-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/4368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4368-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4368-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4368-9-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/4368-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4368-2-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads