tofsee | b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/12/2024, 03:11

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General

Target

JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe
Size

271KB
MD5

9ae78f053aae1b5679c107ed4f82d88f
SHA1

d72d9f05b16847980c9f1eee05b921d8a426ff5b
SHA256

b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1
SHA512

fe10c528f9c03203540a5c605da73c833a20e4315320dc4448e73d782b19ea3efcc9f545325268df4aac3ff7dff433bb0321bb2351be528bfaa2bb946dfcb0d5
SSDEEP

6144:RnhFX60LF+3XXouScjVkARRROhxxpeTr/ekI:ljXFc3XY5M6Aczxp6L

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\sfjfucwf = "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
380	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\sfjfucwf\ImagePath = "C:\\Windows\\SysWOW64\\sfjfucwf\\rhhhwntl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2324	rhhhwntl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2324 set thread context of 1088	2324	rhhhwntl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2620	sc.exe
2204	sc.exe
1808	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	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.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	rhhhwntl.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2832	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	30
PID 2888 wrote to memory of 2832	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	30
PID 2888 wrote to memory of 2832	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	30
PID 2888 wrote to memory of 2832	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	30
PID 2888 wrote to memory of 2780	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	32
PID 2888 wrote to memory of 2780	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	32
PID 2888 wrote to memory of 2780	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	32
PID 2888 wrote to memory of 2780	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	32
PID 2888 wrote to memory of 1808	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	34
PID 2888 wrote to memory of 1808	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	34
PID 2888 wrote to memory of 1808	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	34
PID 2888 wrote to memory of 1808	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	34
PID 2888 wrote to memory of 2620	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	36
PID 2888 wrote to memory of 2620	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	36
PID 2888 wrote to memory of 2620	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	36
PID 2888 wrote to memory of 2620	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	36
PID 2888 wrote to memory of 2204	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	38
PID 2888 wrote to memory of 2204	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	38
PID 2888 wrote to memory of 2204	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	38
PID 2888 wrote to memory of 2204	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	38
PID 2888 wrote to memory of 380	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	41
PID 2888 wrote to memory of 380	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	41
PID 2888 wrote to memory of 380	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	41
PID 2888 wrote to memory of 380	2888	JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe	41
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43
PID 2324 wrote to memory of 1088	2324	rhhhwntl.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sfjfucwf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rhhhwntl.exe" C:\Windows\SysWOW64\sfjfucwf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sfjfucwf binPath= "C:\Windows\SysWOW64\sfjfucwf\rhhhwntl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sfjfucwf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sfjfucwf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- 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:380

C:\Windows\SysWOW64\sfjfucwf\rhhhwntl.exe
C:\Windows\SysWOW64\sfjfucwf\rhhhwntl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b96c44175c196165d390f714e2f47bf188a355293dcb8c6b6b3b09e3a457d4e1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- 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:1088

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\rhhhwntl.exe

Filesize
14.0MB

MD5
a149bc414405c96610692589df4953fe

SHA1
5eb677e18ab209d88863b72f6b1c8065d61c7f3a

SHA256
1085c701a46d11a5d294391ea9ef3250a29e5e633e53429cb9ccf71e9d946375

SHA512
ee8025c1b22d85fb0a7fd7ec9cf3fde761e6cdd9e32fe889fe7b5e5df6662d098759fc987dfafbc00f991bfbd8dd944a0157e5bc2c54dcbb53fef08eccb6ccc6

Download Submit
memory/1088-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1088-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2324-15-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2888-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2888-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2888-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2888-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2888-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2888-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads