tofsee | 12a920c32a2bf8d2dcd2e7539ca614e6535563acd22dea2a49feb10f8b430e40

General

Target

eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
Size

10.6MB
MD5

eea0d82d85f2010a0d24f75acb725238
SHA1

ddb1710404535d2f139a3edc90c1816034bc78f8
SHA256

12a920c32a2bf8d2dcd2e7539ca614e6535563acd22dea2a49feb10f8b430e40
SHA512

54aa21bec6e22558a51c061ef0c0bf4c10c80008d009701a18fe6e733d8b278d7af8e7c489ce95dc36de04ee5c1dc8366a9217ade58ec51a73cf358074cdbaf5
SSDEEP

24576:Em1111111111111111111111111111111111111111111111111111111111111f:

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
2864	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\wispyiyp\ImagePath = "C:\\Windows\\SysWOW64\\wispyiyp\\ajrpiknn.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2532	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1248	ajrpiknn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1248 set thread context of 2532	1248	ajrpiknn.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4936	sc.exe
3644	sc.exe
2432	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
556	1524	WerFault.exe	82
4396	1248	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	ajrpiknn.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
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	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 3620	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	83
PID 1524 wrote to memory of 3620	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	83
PID 1524 wrote to memory of 3620	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	83
PID 1524 wrote to memory of 1888	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	86
PID 1524 wrote to memory of 1888	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	86
PID 1524 wrote to memory of 1888	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	86
PID 1524 wrote to memory of 2432	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	88
PID 1524 wrote to memory of 2432	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	88
PID 1524 wrote to memory of 2432	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	88
PID 1524 wrote to memory of 4936	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	90
PID 1524 wrote to memory of 4936	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	90
PID 1524 wrote to memory of 4936	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	90
PID 1524 wrote to memory of 3644	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	92
PID 1524 wrote to memory of 3644	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	92
PID 1524 wrote to memory of 3644	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	92
PID 1524 wrote to memory of 2864	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	95
PID 1524 wrote to memory of 2864	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	95
PID 1524 wrote to memory of 2864	1524	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	95
PID 1248 wrote to memory of 2532	1248	ajrpiknn.exe	101
PID 1248 wrote to memory of 2532	1248	ajrpiknn.exe	101
PID 1248 wrote to memory of 2532	1248	ajrpiknn.exe	101
PID 1248 wrote to memory of 2532	1248	ajrpiknn.exe	101
PID 1248 wrote to memory of 2532	1248	ajrpiknn.exe	101

C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wispyiyp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ajrpiknn.exe" C:\Windows\SysWOW64\wispyiyp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wispyiyp binPath= "C:\Windows\SysWOW64\wispyiyp\ajrpiknn.exe /d\"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wispyiyp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wispyiyp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3644
- 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:2864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 580
  2⤵
  - Program crash
  PID:556

C:\Windows\SysWOW64\wispyiyp\ajrpiknn.exe
C:\Windows\SysWOW64\wispyiyp\ajrpiknn.exe /d"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1248 -s 540
  2⤵
  - Program crash
  PID:4396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1524 -ip 1524
1⤵
PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1248 -ip 1248
1⤵
PID:2192

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\ajrpiknn.exe

Filesize
14.3MB

MD5
9120cba4bee0547cf74ca130452af1a6

SHA1
35545928284e78502dc2a41f6691223c2b27d25e

SHA256
68bd29510e1eb6e0f31623787a195c2080b037722909634515f9c702bf91b804

SHA512
fa0c972688aafc588a828abe2521f2b7c1e5df4ab14517a7bb0c11084db3e9e5b1e2e917123d13c81c5aaa0a56068eda0c34d57e7d2bb6f61abf3e2339383de4

Download Submit
memory/1248-15-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/1524-1-0x0000000002D90000-0x0000000002E90000-memory.dmp

Filesize
1024KB

Download
memory/1524-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1524-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1524-9-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1524-8-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/2532-11-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2532-13-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2532-14-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads