tofsee | b186eda75a3fd90163c798cb6b11f457f04175e71e09f86c0ec7037c56db55d9

General

Target

c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe
Size

10.3MB
MD5

c5827bccfff621de9248e02b015d9522
SHA1

e8be59c1d0523f26497bffd90b2c72c4377e9bb6
SHA256

b186eda75a3fd90163c798cb6b11f457f04175e71e09f86c0ec7037c56db55d9
SHA512

4a0caae7f03ce30426395061706c4be51e11f0d53624b0ed115b3861d5264c462ccd1c1e7a6ab30fe4b2140fee898673980f0ab104799c663c1cde9acfc48568
SSDEEP

49152:2cUGb2222222222222222222222222222222222222222222222222222222222P:2cU

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
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
1700	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\lqhedgjf\ImagePath = "C:\\Windows\\SysWOW64\\lqhedgjf\\dfagzmw.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	dfagzmw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 3392	2512	dfagzmw.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3620	sc.exe
664	sc.exe
3608	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
2920	4696	WerFault.exe	81
2988	2512	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	sc.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	dfagzmw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c5827bccfff621de9248e02b015d9522_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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 4996	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	82
PID 4696 wrote to memory of 4996	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	82
PID 4696 wrote to memory of 4996	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	82
PID 4696 wrote to memory of 3740	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	84
PID 4696 wrote to memory of 3740	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	84
PID 4696 wrote to memory of 3740	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	84
PID 4696 wrote to memory of 3620	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	86
PID 4696 wrote to memory of 3620	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	86
PID 4696 wrote to memory of 3620	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	86
PID 4696 wrote to memory of 664	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	88
PID 4696 wrote to memory of 664	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	88
PID 4696 wrote to memory of 664	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	88
PID 4696 wrote to memory of 3608	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	90
PID 4696 wrote to memory of 3608	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	90
PID 4696 wrote to memory of 3608	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	90
PID 4696 wrote to memory of 1700	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	93
PID 4696 wrote to memory of 1700	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	93
PID 4696 wrote to memory of 1700	4696	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	93
PID 2512 wrote to memory of 3392	2512	dfagzmw.exe	95
PID 2512 wrote to memory of 3392	2512	dfagzmw.exe	95
PID 2512 wrote to memory of 3392	2512	dfagzmw.exe	95
PID 2512 wrote to memory of 3392	2512	dfagzmw.exe	95
PID 2512 wrote to memory of 3392	2512	dfagzmw.exe	95

C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lqhedgjf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfagzmw.exe" C:\Windows\SysWOW64\lqhedgjf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lqhedgjf binPath= "C:\Windows\SysWOW64\lqhedgjf\dfagzmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lqhedgjf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lqhedgjf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3608
- 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:1700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 1040
  2⤵
  - Program crash
  PID:2920

C:\Windows\SysWOW64\lqhedgjf\dfagzmw.exe
C:\Windows\SysWOW64\lqhedgjf\dfagzmw.exe /d"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 528
  2⤵
  - Program crash
  PID:2988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2512 -ip 2512
1⤵
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4696 -ip 4696
1⤵
PID:4292

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\dfagzmw.exe

Filesize
10.2MB

MD5
e7ccebf608ee77347c4d5454bf36bb70

SHA1
22326f1682e400f00fd1107354fc6a4957a0edf3

SHA256
9cb85e49a813047f4778b9ad81828655a109a9af72236fde1271378a088f904b

SHA512
84ead31810828bffc0c31760dc3a178dae3bb41a0f8c287ba8344b002165ad6a1567a9b522c4a962063000667922e3e3a195ba50c48c767f607b5903c9a38c78

Download Submit
memory/2512-8-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2512-16-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2512-10-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2512-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/3392-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3392-11-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3392-20-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3392-21-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3392-22-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4696-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4696-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/4696-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4696-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4696-18-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4696-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads