tofsee | 8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036

General

Target

JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe
Size

160KB
MD5

ea477d707b195f0b44ccad65d77c5134
SHA1

a941fe2f82ac951a69d86f2214208ae1dd9dcd01
SHA256

8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036
SHA512

65d4e367ceba707dea1d3572862c35a4371035c3f233041561d0111d3e2fb2ba9ac780a178f0b1135fee9fd2089974f6c6f27cd2439f7722d92911bb44b83a91
SSDEEP

1536:ma2VSyQsJgXWheKALv54FZ9YsnVGMk8L7w8ddqOY9jV2cYdOd/5fOJqrtUrfFhl0:xlNGUja6Md5Jle/5mQrtIFs1h/

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
2668	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\afnkdxyq\ImagePath = "C:\\Windows\\SysWOW64\\afnkdxyq\\slzldxzm.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	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe

Deletes itself 1 IoCs

pid	Process
4728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1672	slzldxzm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 4728	1672	slzldxzm.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4168	sc.exe
4204	sc.exe
4764	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
2132	1672	WerFault.exe	94
2708	4544	WerFault.exe	82

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	slzldxzm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.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

description	pid	Process	procid_target
PID 4544 wrote to memory of 2568	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	83
PID 4544 wrote to memory of 2568	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	83
PID 4544 wrote to memory of 2568	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	83
PID 4544 wrote to memory of 4576	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	85
PID 4544 wrote to memory of 4576	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	85
PID 4544 wrote to memory of 4576	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	85
PID 4544 wrote to memory of 4168	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	87
PID 4544 wrote to memory of 4168	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	87
PID 4544 wrote to memory of 4168	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	87
PID 4544 wrote to memory of 4204	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	89
PID 4544 wrote to memory of 4204	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	89
PID 4544 wrote to memory of 4204	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	89
PID 4544 wrote to memory of 4764	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	92
PID 4544 wrote to memory of 4764	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	92
PID 4544 wrote to memory of 4764	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	92
PID 4544 wrote to memory of 2668	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	95
PID 4544 wrote to memory of 2668	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	95
PID 4544 wrote to memory of 2668	4544	JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe	95
PID 1672 wrote to memory of 4728	1672	slzldxzm.exe	97
PID 1672 wrote to memory of 4728	1672	slzldxzm.exe	97
PID 1672 wrote to memory of 4728	1672	slzldxzm.exe	97
PID 1672 wrote to memory of 4728	1672	slzldxzm.exe	97
PID 1672 wrote to memory of 4728	1672	slzldxzm.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\afnkdxyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\slzldxzm.exe" C:\Windows\SysWOW64\afnkdxyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create afnkdxyq binPath= "C:\Windows\SysWOW64\afnkdxyq\slzldxzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description afnkdxyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start afnkdxyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4764
- 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:2668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 1036
  2⤵
  - Program crash
  PID:2708

C:\Windows\SysWOW64\afnkdxyq\slzldxzm.exe
C:\Windows\SysWOW64\afnkdxyq\slzldxzm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d929bdd859421d37d3432ef6efb36981c07ccd591a61633e58ec4b4df58e036.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 508
  2⤵
  - Program crash
  PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4544 -ip 4544
1⤵
PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1672 -ip 1672
1⤵
PID:1452

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\slzldxzm.exe

Filesize
12.1MB

MD5
3d1fb2215f4e04040613d4523ea0433d

SHA1
d1269235dd84ef7f703c31bc9cdddb9fd0f27146

SHA256
832d91ce00543897220b3f21dd31ab3d93dccad94c13efaaa74f3a6a6238d6d9

SHA512
6372b041433ecfd118d41de73c286220fc9007c3d7989bd6489428b4fbd76c0eee7876e2f69b4cc0196a1f7e735889ea1df8ad353b8230a617bde12946b7fd98

Download Submit
memory/1672-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1672-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1672-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4544-16-0x0000000002050000-0x0000000002063000-memory.dmp

Filesize
76KB

Download
memory/4544-1-0x0000000002050000-0x0000000002063000-memory.dmp

Filesize
76KB

Download
memory/4544-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4544-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4544-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4544-0-0x0000000002040000-0x000000000204D000-memory.dmp

Filesize
52KB

Download
memory/4544-15-0x0000000002040000-0x000000000204D000-memory.dmp

Filesize
52KB

Download
memory/4728-8-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4728-11-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4728-18-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4728-19-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4728-20-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads