tofsee | 14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2

General

Target

JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe
Size

294KB
MD5

f762df0ed1bb2b3fcfcf31127038780c
SHA1

92508e1b8e3de24fb705cecb9ec15c8200a71ac4
SHA256

14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2
SHA512

9cbc2d7c59fddb141f1f858c7ef2e0e720bf974e947e3bfcaaf7e63d4064005b2eedaab29cfe5385a32f905e307c4d536d34fcdf7dfe410d082c053dc4aa3dea
SSDEEP

6144:vuSscn6byernqIeA+ZyCVZWmZGSXuZet0yy8YobdBSpKjE/:WL0eGVZJGSXuZet0yy8YSSp9

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
3836	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\wfpdwywr\ImagePath = "C:\\Windows\\SysWOW64\\wfpdwywr\\cpyvwbna.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe

Deletes itself 1 IoCs

pid	Process
1596	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1604	cpyvwbna.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1604 set thread context of 1596	1604	cpyvwbna.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2528	sc.exe
1356	sc.exe
4192	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1488	692	WerFault.exe	81
2096	1604	WerFault.exe	96

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	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.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	cpyvwbna.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 692 wrote to memory of 1164	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	82
PID 692 wrote to memory of 1164	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	82
PID 692 wrote to memory of 1164	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	82
PID 692 wrote to memory of 1136	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	84
PID 692 wrote to memory of 1136	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	84
PID 692 wrote to memory of 1136	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	84
PID 692 wrote to memory of 2528	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	88
PID 692 wrote to memory of 2528	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	88
PID 692 wrote to memory of 2528	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	88
PID 692 wrote to memory of 1356	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	90
PID 692 wrote to memory of 1356	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	90
PID 692 wrote to memory of 1356	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	90
PID 692 wrote to memory of 4192	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	94
PID 692 wrote to memory of 4192	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	94
PID 692 wrote to memory of 4192	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	94
PID 692 wrote to memory of 3836	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	97
PID 692 wrote to memory of 3836	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	97
PID 692 wrote to memory of 3836	692	JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe	97
PID 1604 wrote to memory of 1596	1604	cpyvwbna.exe	102
PID 1604 wrote to memory of 1596	1604	cpyvwbna.exe	102
PID 1604 wrote to memory of 1596	1604	cpyvwbna.exe	102
PID 1604 wrote to memory of 1596	1604	cpyvwbna.exe	102
PID 1604 wrote to memory of 1596	1604	cpyvwbna.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wfpdwywr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cpyvwbna.exe" C:\Windows\SysWOW64\wfpdwywr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wfpdwywr binPath= "C:\Windows\SysWOW64\wfpdwywr\cpyvwbna.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wfpdwywr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wfpdwywr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4192
- 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:3836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 692 -s 784
  2⤵
  - Program crash
  PID:1488

C:\Windows\SysWOW64\wfpdwywr\cpyvwbna.exe
C:\Windows\SysWOW64\wfpdwywr\cpyvwbna.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14849372bfd7471f0684c9953a212f3374b7ab1fe9c374aaae7e08d37437a9a2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 560
  2⤵
  - Program crash
  PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 692 -ip 692
1⤵
PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1604 -ip 1604
1⤵
PID:3944

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\cpyvwbna.exe

Filesize
14.2MB

MD5
0cbabac75441cfd735fdb04e97c57948

SHA1
fe85ee9d8acc908cb25a3b728a18d7599d5fa2f0

SHA256
9575b29edf7d7da4bdb3ef0feea39d792051394cf2580ee1db8b56b1965ac3bc

SHA512
2628f75470310920e89c0acd052db8ac1cab317f80566f58af4dde889e31601c9343e2b3307eb348aba85ff31bde5e87557d1ee8c1a77cce22b675d2056e3d5f

Download Submit
memory/692-1-0x0000000001E90000-0x0000000001F90000-memory.dmp

Filesize
1024KB

Download
memory/692-2-0x0000000003940000-0x0000000003953000-memory.dmp

Filesize
76KB

Download
memory/692-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/692-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/692-8-0x0000000003940000-0x0000000003953000-memory.dmp

Filesize
76KB

Download
memory/692-7-0x0000000000400000-0x0000000001BFF000-memory.dmp

Filesize
24.0MB

Download
memory/1596-11-0x00000000008A0000-0x00000000008B5000-memory.dmp

Filesize
84KB

Download
memory/1596-13-0x00000000008A0000-0x00000000008B5000-memory.dmp

Filesize
84KB

Download
memory/1596-14-0x00000000008A0000-0x00000000008B5000-memory.dmp

Filesize
84KB

Download
memory/1604-15-0x0000000000400000-0x0000000001BFF000-memory.dmp

Filesize
24.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads