tofsee | 54ae63cbfc8ffd4f1774f3bfa72767838e69ea8fb7462235e8ea2090ecbac6b1

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 01:01

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General

Target

e91f87757b258636c980a9f915163bda_JaffaCakes118.exe
Size

11.0MB
MD5

e91f87757b258636c980a9f915163bda
SHA1

efe9d2e60af6a2a48630f9569700fcbfa2614432
SHA256

54ae63cbfc8ffd4f1774f3bfa72767838e69ea8fb7462235e8ea2090ecbac6b1
SHA512

f0dc167766ff7769884c71ac26a552cf2cc5babcc56608884f11776a41f635a316094bc8f0a2ed50175f45a533bfec27e2b1b593fac0e90848e5f52ca0fb87b8
SSDEEP

24576:doGUbmtvDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDL:N9t

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\odwlydod = "0"	svchost.exe

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
2692	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\odwlydod\ImagePath = "C:\\Windows\\SysWOW64\\odwlydod\\krdqzmnh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2964	krdqzmnh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 2748	2964	krdqzmnh.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2108	sc.exe
2848	sc.exe
2088	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

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	e91f87757b258636c980a9f915163bda_JaffaCakes118.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	krdqzmnh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 1664	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	31
PID 1224 wrote to memory of 1664	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	31
PID 1224 wrote to memory of 1664	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	31
PID 1224 wrote to memory of 1664	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	31
PID 1224 wrote to memory of 2640	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	33
PID 1224 wrote to memory of 2640	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	33
PID 1224 wrote to memory of 2640	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	33
PID 1224 wrote to memory of 2640	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	33
PID 1224 wrote to memory of 2088	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	35
PID 1224 wrote to memory of 2088	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	35
PID 1224 wrote to memory of 2088	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	35
PID 1224 wrote to memory of 2088	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	35
PID 1224 wrote to memory of 2108	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	37
PID 1224 wrote to memory of 2108	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	37
PID 1224 wrote to memory of 2108	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	37
PID 1224 wrote to memory of 2108	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	37
PID 1224 wrote to memory of 2848	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	39
PID 1224 wrote to memory of 2848	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	39
PID 1224 wrote to memory of 2848	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	39
PID 1224 wrote to memory of 2848	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	39
PID 1224 wrote to memory of 2692	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	42
PID 1224 wrote to memory of 2692	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	42
PID 1224 wrote to memory of 2692	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	42
PID 1224 wrote to memory of 2692	1224	e91f87757b258636c980a9f915163bda_JaffaCakes118.exe	42
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44
PID 2964 wrote to memory of 2748	2964	krdqzmnh.exe	44

C:\Users\Admin\AppData\Local\Temp\e91f87757b258636c980a9f915163bda_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e91f87757b258636c980a9f915163bda_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\odwlydod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\krdqzmnh.exe" C:\Windows\SysWOW64\odwlydod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create odwlydod binPath= "C:\Windows\SysWOW64\odwlydod\krdqzmnh.exe /d\"C:\Users\Admin\AppData\Local\Temp\e91f87757b258636c980a9f915163bda_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description odwlydod "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start odwlydod
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:2692

C:\Windows\SysWOW64\odwlydod\krdqzmnh.exe
C:\Windows\SysWOW64\odwlydod\krdqzmnh.exe /d"C:\Users\Admin\AppData\Local\Temp\e91f87757b258636c980a9f915163bda_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2748

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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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Downloads

C:\Users\Admin\AppData\Local\Temp\krdqzmnh.exe

Filesize
13.2MB

MD5
57b9cb72a7a9a90ff9a324a83801fa17

SHA1
358594b0b601ad4dfbead333cd016942fef65cb4

SHA256
3be4076e256af2b48c29f81e18c266be07a677d41a47b3c38755e06b062ad602

SHA512
cfea2baf2ea6953ce35c6e614c642c4adecc3281c9af611890351dc701863860b9dd4ec2e2e54e188af7ad6a7a5b4a2d2b6d0d8dc1da7fccb872fe922aadf139

Download Submit
memory/1224-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1224-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1224-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1224-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/1224-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

Filesize
1024KB

Download
memory/2748-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads