tofsee | f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9

General

Target

JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe
Size

169KB
MD5

29158e8cb0547c4acb9b1f3943dee654
SHA1

a0e09de29d5b1e40956e98f896283c2b1981c3da
SHA256

f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9
SHA512

e322f101af58092c980387442bf2abb43f7c167d430e94d46d4aaf075c61650b69266b41c99622b794db08a33915de49e2c21e1098060ba694aa20ef4397bec1
SSDEEP

3072:dINEppMfh7N5IC0UfQDCmiTPOKtGtJVA8sxo2:KNEppMfz502jOEAfA8aD

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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
888	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\dyuwasna\ImagePath = "C:\\Windows\\SysWOW64\\dyuwasna\\tldkjals.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_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe

Deletes itself 1 IoCs

pid	Process
4236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3660	tldkjals.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3660 set thread context of 4236	3660	tldkjals.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
4068	sc.exe
876	sc.exe
3700	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
2776	3660	WerFault.exe	92
4268	3432	WerFault.exe	81

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	tldkjals.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 2396	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	82
PID 3432 wrote to memory of 2396	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	82
PID 3432 wrote to memory of 2396	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	82
PID 3432 wrote to memory of 316	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	84
PID 3432 wrote to memory of 316	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	84
PID 3432 wrote to memory of 316	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	84
PID 3432 wrote to memory of 4068	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	86
PID 3432 wrote to memory of 4068	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	86
PID 3432 wrote to memory of 4068	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	86
PID 3432 wrote to memory of 876	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	88
PID 3432 wrote to memory of 876	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	88
PID 3432 wrote to memory of 876	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	88
PID 3432 wrote to memory of 3700	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	90
PID 3432 wrote to memory of 3700	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	90
PID 3432 wrote to memory of 3700	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	90
PID 3660 wrote to memory of 4236	3660	tldkjals.exe	93
PID 3660 wrote to memory of 4236	3660	tldkjals.exe	93
PID 3660 wrote to memory of 4236	3660	tldkjals.exe	93
PID 3660 wrote to memory of 4236	3660	tldkjals.exe	93
PID 3660 wrote to memory of 4236	3660	tldkjals.exe	93
PID 3432 wrote to memory of 888	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	96
PID 3432 wrote to memory of 888	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	96
PID 3432 wrote to memory of 888	3432	JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dyuwasna\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tldkjals.exe" C:\Windows\SysWOW64\dyuwasna\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dyuwasna binPath= "C:\Windows\SysWOW64\dyuwasna\tldkjals.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dyuwasna "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dyuwasna
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3700
- 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:888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1192
  2⤵
  - Program crash
  PID:4268

C:\Windows\SysWOW64\dyuwasna\tldkjals.exe
C:\Windows\SysWOW64\dyuwasna\tldkjals.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f647a6fda0523d4891a6c0805ce3d432e4e73b5b78baf4df701ebafce13899c9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 572
  2⤵
  - Program crash
  PID:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3660 -ip 3660
1⤵
PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3432 -ip 3432
1⤵
PID:3164

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\tldkjals.exe

Filesize
12.2MB

MD5
e9216354e47bf94480456b4364f642e5

SHA1
14251739d6933c6099cb0ef5089aab3e966650d4

SHA256
f3730bfe32129b45cade01d39977321505c4cb1fbbcc55f8df4c382d236266aa

SHA512
9e324bf990d272cea5a2b5646e6ff86ec87a6122890893871e612a5aaa43f75be343c76d9ded34716a4a79cc2ddd80e5d0e8a0203d9396df67c7c6ed895d53f0

Download Submit
memory/3432-17-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/3432-1-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/3432-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3432-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/3432-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3432-16-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/3432-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3660-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3660-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3660-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3660-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4236-12-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4236-9-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4236-19-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4236-20-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4236-21-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads