tofsee | 4ec0c88acd4c018454f87a96b5ef6310bb2ae875729aca010726d74603142689

General

Target

86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe
Size

11.4MB
MD5

86c4a6095758513bcb590895ed3ba9e5
SHA1

395ac4a6632eb2a9a55b9cfdc2e04bde0e87681f
SHA256

4ec0c88acd4c018454f87a96b5ef6310bb2ae875729aca010726d74603142689
SHA512

5a820bbbdfb5fc7663757e95b12b2827cbdad3b7fd355b5cf069fdb399531e9a402b4a696d4a0eec798d604e2f97093b041f4d1d53d894abab037fd2dcaf6be3
SSDEEP

196608:S+8888888888888888888888888888888888888888888888888888888888888r:T888888888888888888888888888888c

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
1008	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\emkjuaox\ImagePath = "C:\\Windows\\SysWOW64\\emkjuaox\\dgzhfhpz.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3516	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4904	dgzhfhpz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4904 set thread context of 3516	4904	dgzhfhpz.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
3852	sc.exe
3524	sc.exe
1756	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
2212	648	WerFault.exe	83
3420	4904	WerFault.exe	97

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	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	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	dgzhfhpz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 648 wrote to memory of 4400	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	87
PID 648 wrote to memory of 4400	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	87
PID 648 wrote to memory of 4400	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	87
PID 648 wrote to memory of 2748	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	89
PID 648 wrote to memory of 2748	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	89
PID 648 wrote to memory of 2748	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	89
PID 648 wrote to memory of 3852	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	91
PID 648 wrote to memory of 3852	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	91
PID 648 wrote to memory of 3852	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	91
PID 648 wrote to memory of 3524	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	93
PID 648 wrote to memory of 3524	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	93
PID 648 wrote to memory of 3524	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	93
PID 648 wrote to memory of 1756	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	95
PID 648 wrote to memory of 1756	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	95
PID 648 wrote to memory of 1756	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	95
PID 648 wrote to memory of 1008	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	98
PID 648 wrote to memory of 1008	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	98
PID 648 wrote to memory of 1008	648	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	98
PID 4904 wrote to memory of 3516	4904	dgzhfhpz.exe	103
PID 4904 wrote to memory of 3516	4904	dgzhfhpz.exe	103
PID 4904 wrote to memory of 3516	4904	dgzhfhpz.exe	103
PID 4904 wrote to memory of 3516	4904	dgzhfhpz.exe	103
PID 4904 wrote to memory of 3516	4904	dgzhfhpz.exe	103

C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\emkjuaox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dgzhfhpz.exe" C:\Windows\SysWOW64\emkjuaox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create emkjuaox binPath= "C:\Windows\SysWOW64\emkjuaox\dgzhfhpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description emkjuaox "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start emkjuaox
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1756
- 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:1008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 648 -s 780
  2⤵
  - Program crash
  PID:2212

C:\Windows\SysWOW64\emkjuaox\dgzhfhpz.exe
C:\Windows\SysWOW64\emkjuaox\dgzhfhpz.exe /d"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 512
  2⤵
  - Program crash
  PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 648 -ip 648
1⤵
PID:2204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4904 -ip 4904
1⤵
PID:4108

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\dgzhfhpz.exe

Filesize
12.4MB

MD5
f6920b77443255c092bbf9df3f1d4451

SHA1
670f15293c4a9ad62a043f0506a9cf4cadc67090

SHA256
ab7c17380f2715ab57dc012b1ce4a7e72364cf218623fe7a3075fd6fbffc3666

SHA512
974b99cfde0eec0c71564db6fcd7d3ace305ac90bc1f1b9f9082afcbd848cd58e9f5c62e3246de0951bc2320742a7837fa21d11b9accde357609341f33387aaf

Download Submit
memory/648-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/648-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/648-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/648-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/648-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/3516-14-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/3516-16-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/3516-19-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/4904-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4904-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4904-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4904-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads