tofsee | acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507

General

Target

JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe
Size

316KB
MD5

fb84a1e83259f25496b4a5eae9ffca35
SHA1

3eeb9d179e6c6a5d9c3b98a894d4afd1111a93a2
SHA256

acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507
SHA512

79af94756301cc4d0067f05cfc64dc19abe84b5f76057edcf210a85dfb4ee23533e243eb34ed9ae9c3353855c44b92a6fe2e0e53a4f149cf9b4a5adcc5b4dac3
SSDEEP

6144:rjho0K+fMn1AFSK2/7u0reiZ0cGBjDTrV+Mlyv:fhIn1AV2/7u0reiZ0cGBjZ+M

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
1952	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\szvvstzf\ImagePath = "C:\\Windows\\SysWOW64\\szvvstzf\\wjspqvhu.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe

Deletes itself 1 IoCs

pid	Process
1948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1432	wjspqvhu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1432 set thread context of 1948	1432	wjspqvhu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3620	sc.exe
3076	sc.exe
1924	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
4080	3164	WerFault.exe	81
408	1432	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wjspqvhu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3164 wrote to memory of 4948	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	82
PID 3164 wrote to memory of 4948	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	82
PID 3164 wrote to memory of 4948	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	82
PID 3164 wrote to memory of 5112	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	84
PID 3164 wrote to memory of 5112	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	84
PID 3164 wrote to memory of 5112	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	84
PID 3164 wrote to memory of 1924	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	86
PID 3164 wrote to memory of 1924	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	86
PID 3164 wrote to memory of 1924	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	86
PID 3164 wrote to memory of 3620	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	88
PID 3164 wrote to memory of 3620	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	88
PID 3164 wrote to memory of 3620	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	88
PID 3164 wrote to memory of 3076	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	90
PID 3164 wrote to memory of 3076	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	90
PID 3164 wrote to memory of 3076	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	90
PID 3164 wrote to memory of 1952	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	93
PID 3164 wrote to memory of 1952	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	93
PID 3164 wrote to memory of 1952	3164	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	93
PID 1432 wrote to memory of 1948	1432	wjspqvhu.exe	98
PID 1432 wrote to memory of 1948	1432	wjspqvhu.exe	98
PID 1432 wrote to memory of 1948	1432	wjspqvhu.exe	98
PID 1432 wrote to memory of 1948	1432	wjspqvhu.exe	98
PID 1432 wrote to memory of 1948	1432	wjspqvhu.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\szvvstzf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wjspqvhu.exe" C:\Windows\SysWOW64\szvvstzf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create szvvstzf binPath= "C:\Windows\SysWOW64\szvvstzf\wjspqvhu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description szvvstzf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start szvvstzf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3076
- 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:1952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 1268
  2⤵
  - Program crash
  PID:4080

C:\Windows\SysWOW64\szvvstzf\wjspqvhu.exe
C:\Windows\SysWOW64\szvvstzf\wjspqvhu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 528
  2⤵
  - Program crash
  PID:408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3164 -ip 3164
1⤵
PID:1660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1432 -ip 1432
1⤵
PID:4548

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\wjspqvhu.exe

Filesize
14.0MB

MD5
63fb89f1067c6356769801d6425d74ac

SHA1
f2c78cfae58f7ea103aadd28d809e9e7756327f2

SHA256
1202aa32fa26c8590eec545563f972c390d3958b3019d485da3c142df807b08e

SHA512
aa6c3873678bd2bb3d4789c83659219f7f2cdf4b8b872c2c762bc71ad9d0547a5617548f8f2920bd28805813d8f07794c80465eae81ef1373c2c75dc8cb8cb5a

Download Submit
memory/1432-15-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/1948-11-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/1948-13-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/1948-14-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/3164-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/3164-2-0x0000000002C10000-0x0000000002C23000-memory.dmp

Filesize
76KB

Download
memory/3164-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3164-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3164-8-0x0000000002C10000-0x0000000002C23000-memory.dmp

Filesize
76KB

Download
memory/3164-7-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads