tofsee | ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a

General

Target

JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe
Size

153KB
MD5

b1206e4d87af6babdbe3b4ca43a9bcad
SHA1

8be00ab261754a95589aa67ed147ff169ef124d0
SHA256

ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a
SHA512

6a4ae0319e3a83b679e81e9496ec365d14fe0c4dd91eefb6dcea3e5fec8151ea67761e32ee24bc5710121f021f73062bab3a7dd2806c789ad2d7724c9fb34b08
SSDEEP

3072:I1R6lAXozVklu0SzKei5pgE+BHMZu0Oyz:I762XCVKSHV8Oc

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
2576	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\wkjlpeln\ImagePath = "C:\\Windows\\SysWOW64\\wkjlpeln\\xjqkpviq.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	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe

Deletes itself 1 IoCs

pid	Process
1220	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3992	xjqkpviq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3992 set thread context of 1220	3992	xjqkpviq.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4244	sc.exe
2376	sc.exe
1112	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
4036	2844	WerFault.exe	81
4912	3992	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	xjqkpviq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 1040	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	82
PID 2844 wrote to memory of 1040	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	82
PID 2844 wrote to memory of 1040	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	82
PID 2844 wrote to memory of 2432	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	84
PID 2844 wrote to memory of 2432	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	84
PID 2844 wrote to memory of 2432	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	84
PID 2844 wrote to memory of 4244	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	86
PID 2844 wrote to memory of 4244	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	86
PID 2844 wrote to memory of 4244	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	86
PID 2844 wrote to memory of 2376	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	88
PID 2844 wrote to memory of 2376	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	88
PID 2844 wrote to memory of 2376	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	88
PID 2844 wrote to memory of 1112	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	90
PID 2844 wrote to memory of 1112	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	90
PID 2844 wrote to memory of 1112	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	90
PID 2844 wrote to memory of 2576	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	93
PID 2844 wrote to memory of 2576	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	93
PID 2844 wrote to memory of 2576	2844	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	93
PID 3992 wrote to memory of 1220	3992	xjqkpviq.exe	98
PID 3992 wrote to memory of 1220	3992	xjqkpviq.exe	98
PID 3992 wrote to memory of 1220	3992	xjqkpviq.exe	98
PID 3992 wrote to memory of 1220	3992	xjqkpviq.exe	98
PID 3992 wrote to memory of 1220	3992	xjqkpviq.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wkjlpeln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjqkpviq.exe" C:\Windows\SysWOW64\wkjlpeln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wkjlpeln binPath= "C:\Windows\SysWOW64\wkjlpeln\xjqkpviq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wkjlpeln "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wkjlpeln
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1112
- 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:2576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 1184
  2⤵
  - Program crash
  PID:4036

C:\Windows\SysWOW64\wkjlpeln\xjqkpviq.exe
C:\Windows\SysWOW64\wkjlpeln\xjqkpviq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 508
  2⤵
  - Program crash
  PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2844 -ip 2844
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3992 -ip 3992
1⤵
PID:2972

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\xjqkpviq.exe

Filesize
13.4MB

MD5
e0b658f501b20b5d845493558ae86b6b

SHA1
9e8d7efbb038ec188517668d015504cb5cd83f9f

SHA256
e3fe6f603dd49c482d06a82d670fb13426448707ac5c6180173859deae7b2500

SHA512
7521827815f6af126f68708e4e37356d8751fa1fd82b3f75b7a01c2e3f24467e46fec2b1b909e08f04fe4b8963af45b34e8469d08885cff386727b184cfb3c0c

Download Submit
memory/1220-14-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download
memory/1220-16-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download
memory/1220-17-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download
memory/2844-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-2-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/2844-9-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/2844-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2844-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/3992-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3992-13-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3992-12-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3992-18-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads