tofsee | 206a74714825078a3db469a5df6a5c80f4ea5d0ad4f3f351a6ee61646afc88f1

General

Target

28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe
Size

11.7MB
MD5

28e64d4ff58f5f4320c74400b9a9029c
SHA1

7ccfbaa87d883b583221343afa9a42bc158739dd
SHA256

206a74714825078a3db469a5df6a5c80f4ea5d0ad4f3f351a6ee61646afc88f1
SHA512

43e1c0ff53f69295c2cba2551e1fc92be573728166d45182af4e8fee3b0c0d82490cc82c837113062452742847813b0321508465d31c9b2cc48f67688949963d
SSDEEP

98304:3QKRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRL:3

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

pid	Process
1932	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\jqgtnrzg\ImagePath = "C:\\Windows\\SysWOW64\\jqgtnrzg\\rdyvcbbp.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
464	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4996	rdyvcbbp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4996 set thread context of 464	4996	rdyvcbbp.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
3584	sc.exe
808	sc.exe
1624	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
4304	588	WerFault.exe	82
912	4996	WerFault.exe	96

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	svchost.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	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	rdyvcbbp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28e64d4ff58f5f4320c74400b9a9029c_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 588 wrote to memory of 444	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	86
PID 588 wrote to memory of 444	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	86
PID 588 wrote to memory of 444	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	86
PID 588 wrote to memory of 4744	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	88
PID 588 wrote to memory of 4744	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	88
PID 588 wrote to memory of 4744	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	88
PID 588 wrote to memory of 3584	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	90
PID 588 wrote to memory of 3584	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	90
PID 588 wrote to memory of 3584	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	90
PID 588 wrote to memory of 808	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	92
PID 588 wrote to memory of 808	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	92
PID 588 wrote to memory of 808	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	92
PID 588 wrote to memory of 1624	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	94
PID 588 wrote to memory of 1624	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	94
PID 588 wrote to memory of 1624	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	94
PID 588 wrote to memory of 1932	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	97
PID 588 wrote to memory of 1932	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	97
PID 588 wrote to memory of 1932	588	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	97
PID 4996 wrote to memory of 464	4996	rdyvcbbp.exe	103
PID 4996 wrote to memory of 464	4996	rdyvcbbp.exe	103
PID 4996 wrote to memory of 464	4996	rdyvcbbp.exe	103
PID 4996 wrote to memory of 464	4996	rdyvcbbp.exe	103
PID 4996 wrote to memory of 464	4996	rdyvcbbp.exe	103

C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jqgtnrzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rdyvcbbp.exe" C:\Windows\SysWOW64\jqgtnrzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jqgtnrzg binPath= "C:\Windows\SysWOW64\jqgtnrzg\rdyvcbbp.exe /d\"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jqgtnrzg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jqgtnrzg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1624
- 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:1932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 588 -s 896
  2⤵
  - Program crash
  PID:4304

C:\Windows\SysWOW64\jqgtnrzg\rdyvcbbp.exe
C:\Windows\SysWOW64\jqgtnrzg\rdyvcbbp.exe /d"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 516
  2⤵
  - Program crash
  PID:912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 588 -ip 588
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4996 -ip 4996
1⤵
PID:5088

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\rdyvcbbp.exe

Filesize
10.1MB

MD5
b8fc5da2c804e2dec8f3030317a83484

SHA1
7a5bb82ffe5d582933b8a4e7d111a0969fd422eb

SHA256
3963fd049c2904816bd297263e83190d87fb36c7489ae489f90e0d9e6863ca28

SHA512
ac7febfbe50f11217e88180abad206eb7e484d751f7364b1996c8a8faf1060ab427ea2415be430b96417390d7cbafe07f44f113d614174f2080006253fb29588

Download Submit
memory/464-14-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/464-17-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/464-16-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/588-8-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/588-9-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/588-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/588-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/588-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/588-2-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/4996-13-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/4996-12-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/4996-11-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/4996-18-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads