tofsee | 94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/12/2024, 15:50

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General

Target
JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe
Size 160KB
Sample241224-s97zps1lev
SHA256 94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1
MD5 6ec4ce9ef727b0ce459f8b33a2558946
SHA1 223323ff0bbd014582fe858475493e7786fa75a6
SHA512 a4197009bc6dbeb5fc37dc38feca53d3f444a9a3de98fa9e6c5c640a6cab0454ce05b6d58ce4c666e8530f87c7efff22506528b4f9fa8c4120011374a394926a
SSDEEP 3072:Y27J44gMgmR69KfphQ2j11L0Jbudv5aNlXdUMQ:YggmR6oBhQ2j1oqv5aTG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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
116	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\dyjmoohq\ImagePath = "C:\\Windows\\SysWOW64\\dyjmoohq\\uejwdyxm.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe

Deletes itself 1 IoCs

pid	Process
3048	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
464	uejwdyxm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 464 set thread context of 3048	464	uejwdyxm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1044	sc.exe
2744	sc.exe
1456	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
1996	4184	WerFault.exe	81
220	464	WerFault.exe	92

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	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.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	cmd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uejwdyxm.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 4136	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	82
PID 4184 wrote to memory of 4136	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	82
PID 4184 wrote to memory of 4136	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	82
PID 4184 wrote to memory of 4256	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	84
PID 4184 wrote to memory of 4256	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	84
PID 4184 wrote to memory of 4256	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	84
PID 4184 wrote to memory of 1044	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	86
PID 4184 wrote to memory of 1044	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	86
PID 4184 wrote to memory of 1044	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	86
PID 4184 wrote to memory of 2744	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	88
PID 4184 wrote to memory of 2744	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	88
PID 4184 wrote to memory of 2744	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	88
PID 4184 wrote to memory of 1456	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	90
PID 4184 wrote to memory of 1456	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	90
PID 4184 wrote to memory of 1456	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	90
PID 4184 wrote to memory of 116	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	93
PID 4184 wrote to memory of 116	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	93
PID 4184 wrote to memory of 116	4184	JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe	93
PID 464 wrote to memory of 3048	464	uejwdyxm.exe	98
PID 464 wrote to memory of 3048	464	uejwdyxm.exe	98
PID 464 wrote to memory of 3048	464	uejwdyxm.exe	98
PID 464 wrote to memory of 3048	464	uejwdyxm.exe	98
PID 464 wrote to memory of 3048	464	uejwdyxm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dyjmoohq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uejwdyxm.exe" C:\Windows\SysWOW64\dyjmoohq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dyjmoohq binPath= "C:\Windows\SysWOW64\dyjmoohq\uejwdyxm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dyjmoohq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dyjmoohq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1456
- 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:116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 592
  2⤵
  - Program crash
  PID:1996

C:\Windows\SysWOW64\dyjmoohq\uejwdyxm.exe
C:\Windows\SysWOW64\dyjmoohq\uejwdyxm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94d8164b8e24f05fc9a654c110a8a126816f69554fda6ad4971a6a7a450059b1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 464 -s 512
  2⤵
  - Program crash
  PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4184 -ip 4184
1⤵
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 464 -ip 464
1⤵
PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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uejwdyxm.exe

Path C:\Users\Admin\AppData\Local\Temp\uejwdyxm.exe
Size 11.1MB
SHA256 295212fbb918cddf8651f65c6058a6d0794c7ccad36cabfcf2b610f22f4db058
MD5 0d6017bf380b32059df269f872266984
SHA1 9cfe0365901ff8577c01610a076409be634358a4
SHA512 0285ed957049eb866cb57177e019a77a0f00dd33ed818f9300e7b77f1cb4e2382a5b2a6353047208924ee31f2b858bc375b82b9b524fd6b4f172843a3c6d6980
SSDEEP 12288:NgJR66hQcFv5L66666666666666666666666666666666666666666666666666v:S3DQi
MD5 SHA1 SHA512 SSDEEP

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memory/464-6-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/464-13-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/464-7-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/3048-8-0x0000000000480000-0x0000000000495000-memory.dmp

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memory/3048-14-0x0000000000480000-0x0000000000495000-memory.dmp

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memory/3048-15-0x0000000000480000-0x0000000000495000-memory.dmp

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memory/4184-2-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4184-1-0x0000000002180000-0x0000000002193000-memory.dmp

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memory/4184-12-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4184-11-0x0000000002180000-0x0000000002193000-memory.dmp

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memory/4184-10-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/4184-0-0x0000000002170000-0x000000000217D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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