tofsee | e385027bf50361742ca9a6a3d9c179cde61b1f2de98fc59e43574c9775c0dbb6

General

Target

JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe
Size

12.7MB
MD5

dba85cdc0e89cd40923b53f496ae1764
SHA1

375b729f779ddd55457ab70806dfeebc8d4c6099
SHA256

e385027bf50361742ca9a6a3d9c179cde61b1f2de98fc59e43574c9775c0dbb6
SHA512

bd1c24111e28e7956157f9d9a8f52ee431d01aa34bea9e670819e85b8c1e2e73fcc98873235fb799501b63f5eff6c1320ce8319573d1e37f56db26e67c586405
SSDEEP

196608:sT6666666666666666666666666666666666666666666666666666666666666+:s

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
3264	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\ndnsgmxa\ImagePath = "C:\\Windows\\SysWOW64\\ndnsgmxa\\tadbccsg.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3092	tadbccsg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 2720	3092	tadbccsg.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4640	sc.exe
2704	sc.exe
5048	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
1316	4036	WerFault.exe	81
532	3092	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	tadbccsg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.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	cmd.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 4484	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	82
PID 4036 wrote to memory of 4484	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	82
PID 4036 wrote to memory of 4484	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	82
PID 4036 wrote to memory of 3816	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	84
PID 4036 wrote to memory of 3816	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	84
PID 4036 wrote to memory of 3816	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	84
PID 4036 wrote to memory of 4640	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	86
PID 4036 wrote to memory of 4640	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	86
PID 4036 wrote to memory of 4640	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	86
PID 4036 wrote to memory of 2704	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	88
PID 4036 wrote to memory of 2704	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	88
PID 4036 wrote to memory of 2704	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	88
PID 4036 wrote to memory of 5048	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	90
PID 4036 wrote to memory of 5048	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	90
PID 4036 wrote to memory of 5048	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	90
PID 4036 wrote to memory of 3264	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	93
PID 4036 wrote to memory of 3264	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	93
PID 4036 wrote to memory of 3264	4036	JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe	93
PID 3092 wrote to memory of 2720	3092	tadbccsg.exe	98
PID 3092 wrote to memory of 2720	3092	tadbccsg.exe	98
PID 3092 wrote to memory of 2720	3092	tadbccsg.exe	98
PID 3092 wrote to memory of 2720	3092	tadbccsg.exe	98
PID 3092 wrote to memory of 2720	3092	tadbccsg.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ndnsgmxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tadbccsg.exe" C:\Windows\SysWOW64\ndnsgmxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ndnsgmxa binPath= "C:\Windows\SysWOW64\ndnsgmxa\tadbccsg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ndnsgmxa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ndnsgmxa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5048
- 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:3264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 648
  2⤵
  - Program crash
  PID:1316

C:\Windows\SysWOW64\ndnsgmxa\tadbccsg.exe
C:\Windows\SysWOW64\ndnsgmxa\tadbccsg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dba85cdc0e89cd40923b53f496ae1764.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 512
  2⤵
  - Program crash
  PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4036 -ip 4036
1⤵
PID:1768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3092 -ip 3092
1⤵
PID:4756

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\tadbccsg.exe

Filesize
13.5MB

MD5
22ac7d3ac52fd8debdd51a1635e8942e

SHA1
19f48bf8f95d6b3d57d71514bb058b6753c8c6ac

SHA256
41604400e79d938b9fb45b90b8c8ee2c20ba8d1fd675ed4dfe1b82a3df878f6b

SHA512
2b9e0700435ca69ec3f47affd46a9ef9734d97c8589199f9985ff56a2147e5a60d33b5175a775e21227888f613f1d6bc12c4deb88f5de330587dca6527ab5806

Download Submit
memory/2720-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/2720-16-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/2720-17-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3092-11-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3092-12-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3092-13-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3092-18-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4036-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4036-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4036-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4036-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4036-8-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4036-1-0x0000000000B80000-0x0000000000C80000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads