tofsee | e63b1e858d946a62434ca19dee046efa0919af7b131dff8b829a59a074542e03

General

Target

aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe
Size

10.5MB
MD5

aa190a9ae1d43ce177ffe782289c18a2
SHA1

96a2d547b179174dbca7db8e8fef8a4fa7656523
SHA256

e63b1e858d946a62434ca19dee046efa0919af7b131dff8b829a59a074542e03
SHA512

d3a8e9bb7d4d6b17cad394699e4b82b159fa724ee2d45f820bf616c61f1d80568bacc71e7c4c26f417ba88492f612d2612f810ca62d3bb2e9d00a12f2a622d3f
SSDEEP

3072:6MlpcoyOUQmjfWVKt+KjLJK5EbaPlWrU0vyUHlJTt/NKCQlpa+1082+ECOhOhOhV:6MncF3QyfvkIVifUJ/Qf3BV

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

Processes:

netsh.exe

pid	Process
1792	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\eukqpnry\ImagePath = "C:\\Windows\\SysWOW64\\eukqpnry\\ilemkmue.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

Processes:

aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2344	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

ilemkmue.exe

pid	Process
904	ilemkmue.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ilemkmue.exe

description	pid	Process	procid_target
PID 904 set thread context of 2344	904	ilemkmue.exe	102

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2364	sc.exe
3488	sc.exe
1280	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

Processes:

netsh.exe

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

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

Processes:

sc.exesc.exesc.exesvchost.exeaa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.execmd.exenetsh.exeilemkmue.execmd.exe

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ilemkmue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exeilemkmue.exe

description	pid	Process	procid_target
PID 4468 wrote to memory of 2848	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	83
PID 4468 wrote to memory of 2848	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	83
PID 4468 wrote to memory of 2848	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	83
PID 4468 wrote to memory of 2624	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	85
PID 4468 wrote to memory of 2624	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	85
PID 4468 wrote to memory of 2624	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	85
PID 4468 wrote to memory of 2364	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	87
PID 4468 wrote to memory of 2364	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	87
PID 4468 wrote to memory of 2364	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	87
PID 4468 wrote to memory of 3488	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	89
PID 4468 wrote to memory of 3488	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	89
PID 4468 wrote to memory of 3488	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	89
PID 4468 wrote to memory of 1280	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	94
PID 4468 wrote to memory of 1280	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	94
PID 4468 wrote to memory of 1280	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	94
PID 4468 wrote to memory of 1792	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	97
PID 4468 wrote to memory of 1792	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	97
PID 4468 wrote to memory of 1792	4468	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	97
PID 904 wrote to memory of 2344	904	ilemkmue.exe	102
PID 904 wrote to memory of 2344	904	ilemkmue.exe	102
PID 904 wrote to memory of 2344	904	ilemkmue.exe	102
PID 904 wrote to memory of 2344	904	ilemkmue.exe	102
PID 904 wrote to memory of 2344	904	ilemkmue.exe	102

C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eukqpnry\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ilemkmue.exe" C:\Windows\SysWOW64\eukqpnry\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eukqpnry binPath= "C:\Windows\SysWOW64\eukqpnry\ilemkmue.exe /d\"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eukqpnry "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eukqpnry
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1280
- 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:1792

C:\Windows\SysWOW64\eukqpnry\ilemkmue.exe
C:\Windows\SysWOW64\eukqpnry\ilemkmue.exe /d"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2344

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\ilemkmue.exe

Filesize
10.2MB

MD5
7d3f474aee121d5d453b98b2bbe0daf2

SHA1
655615ba344a8e69a9fb86bb457d34970df27858

SHA256
c0c78a90b925a2215439e553417532e949873d26998022ade105ca4f7ecd9dab

SHA512
d578a0378c5ba656b43d0c0fb314e0fe06a44564b7fce8902f6c3fe6f2834a002effaa46b9280cabe856576824d500859359050aae18927126ccec205a448a05

Download Submit
memory/904-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/904-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/904-18-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/904-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2344-12-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/2344-14-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/2344-19-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/4468-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4468-1-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

Filesize
1024KB

Download
memory/4468-9-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download
memory/4468-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4468-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4468-2-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads