tofsee | 149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328

General

Target

JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe
Size

245KB
MD5

5d66b3351af42903b27bcb20cb3d0ab4
SHA1

247621e2325573507fdb548943a4533c4a956c4c
SHA256

149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328
SHA512

ec4086c62a5fc68e103ad4b929358240092194bfd6709995724118df0c685a49ecbed4502ae86d65eb5d945f2f097ad3eba446c12247e69aafdffefa254e37b7
SSDEEP

6144:G2xmE8GXkonz4RMSwuzbgwu6QigabwVf:G0mE807nJunn5

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
364	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\cpmlzgdt\ImagePath = "C:\\Windows\\SysWOW64\\cpmlzgdt\\ibmcnkdw.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe

Deletes itself 1 IoCs

pid	Process
3812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3148	ibmcnkdw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3148 set thread context of 3812	3148	ibmcnkdw.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1072	sc.exe
972	sc.exe
4160	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
4128	2444	WerFault.exe	82
228	3148	WerFault.exe	94

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ibmcnkdw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 4800	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	83
PID 2444 wrote to memory of 4800	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	83
PID 2444 wrote to memory of 4800	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	83
PID 2444 wrote to memory of 2592	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	85
PID 2444 wrote to memory of 2592	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	85
PID 2444 wrote to memory of 2592	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	85
PID 2444 wrote to memory of 1072	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	87
PID 2444 wrote to memory of 1072	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	87
PID 2444 wrote to memory of 1072	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	87
PID 2444 wrote to memory of 972	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	89
PID 2444 wrote to memory of 972	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	89
PID 2444 wrote to memory of 972	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	89
PID 2444 wrote to memory of 4160	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	92
PID 2444 wrote to memory of 4160	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	92
PID 2444 wrote to memory of 4160	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	92
PID 2444 wrote to memory of 364	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	95
PID 2444 wrote to memory of 364	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	95
PID 2444 wrote to memory of 364	2444	JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe	95
PID 3148 wrote to memory of 3812	3148	ibmcnkdw.exe	100
PID 3148 wrote to memory of 3812	3148	ibmcnkdw.exe	100
PID 3148 wrote to memory of 3812	3148	ibmcnkdw.exe	100
PID 3148 wrote to memory of 3812	3148	ibmcnkdw.exe	100
PID 3148 wrote to memory of 3812	3148	ibmcnkdw.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cpmlzgdt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ibmcnkdw.exe" C:\Windows\SysWOW64\cpmlzgdt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cpmlzgdt binPath= "C:\Windows\SysWOW64\cpmlzgdt\ibmcnkdw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cpmlzgdt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cpmlzgdt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4160
- 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:364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 1040
  2⤵
  - Program crash
  PID:4128

C:\Windows\SysWOW64\cpmlzgdt\ibmcnkdw.exe
C:\Windows\SysWOW64\cpmlzgdt\ibmcnkdw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_149a9e09d9ae785e2143685d52fe50243e0b981cf5ad5890fb6b80818ca80328.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 508
  2⤵
  - Program crash
  PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2444 -ip 2444
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3148 -ip 3148
1⤵
PID:556

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\ibmcnkdw.exe

Filesize
14.5MB

MD5
1d17b75f777bfe40f1b4dcee7ca09444

SHA1
fe9f232a4824247bef94737d13d94bb10055f648

SHA256
e1933001cd2eb151a37486a527fa3e0394feefb5ad0b77ab155d708f6b754bd0

SHA512
3430953e049d2ec46cafbdedc07c9f1ded8821c0568e81bbc7c743896eccd75dce6d15a49a82b809a828e9a28ad9a217f37af5531746d49363c2d8ef406f9a80

Download Submit
memory/2444-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2444-1-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/2444-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2444-0-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/2444-14-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2444-15-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/2444-16-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/3148-7-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/3148-13-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/3148-6-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/3812-11-0x0000000000AC0000-0x0000000000AD5000-memory.dmp

Filesize
84KB

Download
memory/3812-8-0x0000000000AC0000-0x0000000000AD5000-memory.dmp

Filesize
84KB

Download
memory/3812-18-0x0000000000AC0000-0x0000000000AD5000-memory.dmp

Filesize
84KB

Download
memory/3812-19-0x0000000000AC0000-0x0000000000AD5000-memory.dmp

Filesize
84KB

Download
memory/3812-20-0x0000000000AC0000-0x0000000000AD5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads