tofsee | cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2

General

Target

JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe
Size

142KB
MD5

558455c90379aa477528aecf5c9171cd
SHA1

5ab455b2ec8b9005a1bacd4f7e522cbae7c6bebe
SHA256

cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2
SHA512

9db45da59dd7521927d0851b1cc96edab7bf1ba81d50d479ede299a34e2f42ef3fdda972dbe0e7ae29acb1c7475896d9931ba725f56a03d19a11c1385a6d7617
SSDEEP

1536:68EcWv2ZfLIPL09oTPftjqy/3/NousvD19QQ2hCubXj5/ICjNH7wbnFIsyna5Y4M:dT/oTPftjqb1yd7z5QWbwDOsFY2

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
2000	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\iokabpgg\ImagePath = "C:\\Windows\\SysWOW64\\iokabpgg\\zeasqtf.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe

Deletes itself 1 IoCs

pid	Process
4672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1712	zeasqtf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1712 set thread context of 4672	1712	zeasqtf.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1632	sc.exe
1988	sc.exe
3060	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
2756	848	WerFault.exe	81
3720	1712	WerFault.exe	92

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	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.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	zeasqtf.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 848 wrote to memory of 2312	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	82
PID 848 wrote to memory of 2312	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	82
PID 848 wrote to memory of 2312	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	82
PID 848 wrote to memory of 904	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	84
PID 848 wrote to memory of 904	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	84
PID 848 wrote to memory of 904	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	84
PID 848 wrote to memory of 1632	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	86
PID 848 wrote to memory of 1632	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	86
PID 848 wrote to memory of 1632	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	86
PID 848 wrote to memory of 1988	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	88
PID 848 wrote to memory of 1988	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	88
PID 848 wrote to memory of 1988	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	88
PID 848 wrote to memory of 3060	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	90
PID 848 wrote to memory of 3060	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	90
PID 848 wrote to memory of 3060	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	90
PID 848 wrote to memory of 2000	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	93
PID 848 wrote to memory of 2000	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	93
PID 848 wrote to memory of 2000	848	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	93
PID 1712 wrote to memory of 4672	1712	zeasqtf.exe	98
PID 1712 wrote to memory of 4672	1712	zeasqtf.exe	98
PID 1712 wrote to memory of 4672	1712	zeasqtf.exe	98
PID 1712 wrote to memory of 4672	1712	zeasqtf.exe	98
PID 1712 wrote to memory of 4672	1712	zeasqtf.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iokabpgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zeasqtf.exe" C:\Windows\SysWOW64\iokabpgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iokabpgg binPath= "C:\Windows\SysWOW64\iokabpgg\zeasqtf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iokabpgg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iokabpgg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- 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:2000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 848 -s 1044
  2⤵
  - Program crash
  PID:2756

C:\Windows\SysWOW64\iokabpgg\zeasqtf.exe
C:\Windows\SysWOW64\iokabpgg\zeasqtf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 512
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 848 -ip 848
1⤵
PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1712 -ip 1712
1⤵
PID:4140

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\zeasqtf.exe

Filesize
12.4MB

MD5
c7bc2c3e863390618d44bda3e16a8ac8

SHA1
d794293fcc7e1b964ff591996dc42d67f01b90fc

SHA256
b4135d11cf619a0c01ed9098a931e0b1d9763454ad951ba08418a9d10dbe0023

SHA512
6b2fa68f69d968177c3ad54b2f0b0c0ead5a5811e42e6b477383e944f3b05bd6f9e9d59f3a222625a3ea09f4a59be8a6fdb5c8ad0d5a98e6a219c8b3ee49dbf9

Download Submit
memory/848-9-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/848-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-2-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/848-8-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/848-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/1712-12-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1712-13-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1712-11-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1712-18-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4672-14-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4672-16-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4672-17-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads