tofsee | 85f52025f20d7c908a33db506d5618087b3c73d13bf461a90401df0e6e561af4

General

Target

de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe
Size

14.8MB
MD5

de1304cd9a3df49bed31e2e30455228a
SHA1

a313f8c3ff1fc8af63c97e1fccb1665734937aa8
SHA256

85f52025f20d7c908a33db506d5618087b3c73d13bf461a90401df0e6e561af4
SHA512

dff870d3dd794aea9b1a5258d9e354d7ad8f3c1c5e38e5559af968c7adde4584f0a83fb84c566a25287371c02dce72b27bde7193b7ce3031e01bc91a64f4a78f
SSDEEP

196608:p3qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqX:p

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
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

3692 netsh.exe

pid	process
3692	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\rdcdsdmi\ImagePath = "C:\\Windows\\SysWOW64\\rdcdsdmi\\ahtgpcdx.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:

de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2568 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ahtgpcdx.exe

pid process

492 ahtgpcdx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ahtgpcdx.exe

description pid process target process

PID 492 set thread context of 2568 492 ahtgpcdx.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

828 sc.exe
3252 sc.exe
2444 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2568	svchost.exe

pid	process
492	ahtgpcdx.exe

description	pid	process	target process
PID 492 set thread context of 2568	492	ahtgpcdx.exe	svchost.exe

pid	process
828	sc.exe
3252	sc.exe
2444	sc.exe

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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1612 3748 WerFault.exe de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe
2200 492 WerFault.exe ahtgpcdx.exe

pid	pid_target	process	target process
1612	3748	WerFault.exe	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe
2200	492	WerFault.exe	ahtgpcdx.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:

cmd.exesc.exenetsh.exesc.exeahtgpcdx.exesvchost.exede1304cd9a3df49bed31e2e30455228a_JaffaCakes118.execmd.exesc.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ahtgpcdx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exeahtgpcdx.exe

description	pid	process	target process
PID 3748 wrote to memory of 3904	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 3904	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 3904	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 680	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 680	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 680	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	cmd.exe
PID 3748 wrote to memory of 2444	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 2444	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 2444	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 828	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 828	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 828	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 3252	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 3252	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 3252	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	sc.exe
PID 3748 wrote to memory of 3692	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	netsh.exe
PID 3748 wrote to memory of 3692	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	netsh.exe
PID 3748 wrote to memory of 3692	3748	de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe	netsh.exe
PID 492 wrote to memory of 2568	492	ahtgpcdx.exe	svchost.exe
PID 492 wrote to memory of 2568	492	ahtgpcdx.exe	svchost.exe
PID 492 wrote to memory of 2568	492	ahtgpcdx.exe	svchost.exe
PID 492 wrote to memory of 2568	492	ahtgpcdx.exe	svchost.exe
PID 492 wrote to memory of 2568	492	ahtgpcdx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rdcdsdmi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahtgpcdx.exe" C:\Windows\SysWOW64\rdcdsdmi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rdcdsdmi binPath= "C:\Windows\SysWOW64\rdcdsdmi\ahtgpcdx.exe /d\"C:\Users\Admin\AppData\Local\Temp\de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rdcdsdmi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rdcdsdmi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3252
- 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:3692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 1044
  2⤵
  - Program crash
  PID:1612

C:\Windows\SysWOW64\rdcdsdmi\ahtgpcdx.exe
C:\Windows\SysWOW64\rdcdsdmi\ahtgpcdx.exe /d"C:\Users\Admin\AppData\Local\Temp\de1304cd9a3df49bed31e2e30455228a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:492
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 492 -s 244
  2⤵
  - Program crash
  PID:2200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3748 -ip 3748
1⤵
PID:380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 492 -ip 492
1⤵
PID:1388

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8
1⤵
PID:3588

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\ahtgpcdx.exe

Filesize
10.2MB

MD5
b8b8b4ed686d89b5aa68f329c880142e

SHA1
d465dd272b047491cd7e727e399615616b1616f8

SHA256
1013f8e04f61bec2cd8c7780e66ddf724cde0124371b78e3c222065a8690dcf0

SHA512
fcdd1c1d24d398388872f6327a6ddd3ae511d2000df3fc3834314cbd1053a60552f9c217e725a77a2df1026b0cf6fefef0be37c214ba16c969eaa8e956c987df

Download Submit
memory/492-11-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/492-18-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/492-12-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2568-15-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/2568-13-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/2568-16-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/3748-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3748-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/3748-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3748-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3748-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/3748-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads