tofsee | 753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 00:03

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General

Target

JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe
Size

279KB
MD5

295cc2519a6559471017d7cfa7963906
SHA1

48d5984d57e5efa254fe2557488274f3845874bf
SHA256

753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7
SHA512

eeffc54acd8c1a38b8401b111829259de886fcf42da365612453a1b2a14943712a73298663e9d864df2260e805c22bdbcaf05082c1deaec917ea22b1f3d7970d
SSDEEP

6144:2ExHiDcpQKTyzmBosTPI3K3XROhxxpeTr/ekIw:ZHiIpQFmi2Yzxp6L

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\nibwuknh = "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
2752	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\nibwuknh\ImagePath = "C:\\Windows\\SysWOW64\\nibwuknh\\rusnhoyi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2380	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	rusnhoyi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2380	2776	rusnhoyi.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2748	sc.exe
2900	sc.exe
2448	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_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.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	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	rusnhoyi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2532	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	31
PID 2328 wrote to memory of 2532	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	31
PID 2328 wrote to memory of 2532	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	31
PID 2328 wrote to memory of 2532	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	31
PID 2328 wrote to memory of 2208	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	33
PID 2328 wrote to memory of 2208	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	33
PID 2328 wrote to memory of 2208	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	33
PID 2328 wrote to memory of 2208	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	33
PID 2328 wrote to memory of 2448	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	35
PID 2328 wrote to memory of 2448	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	35
PID 2328 wrote to memory of 2448	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	35
PID 2328 wrote to memory of 2448	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	35
PID 2328 wrote to memory of 2748	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	37
PID 2328 wrote to memory of 2748	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	37
PID 2328 wrote to memory of 2748	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	37
PID 2328 wrote to memory of 2748	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	37
PID 2328 wrote to memory of 2900	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	39
PID 2328 wrote to memory of 2900	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	39
PID 2328 wrote to memory of 2900	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	39
PID 2328 wrote to memory of 2900	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	39
PID 2328 wrote to memory of 2752	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	42
PID 2328 wrote to memory of 2752	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	42
PID 2328 wrote to memory of 2752	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	42
PID 2328 wrote to memory of 2752	2328	JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe	42
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44
PID 2776 wrote to memory of 2380	2776	rusnhoyi.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nibwuknh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rusnhoyi.exe" C:\Windows\SysWOW64\nibwuknh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nibwuknh binPath= "C:\Windows\SysWOW64\nibwuknh\rusnhoyi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nibwuknh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nibwuknh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2752

C:\Windows\SysWOW64\nibwuknh\rusnhoyi.exe
C:\Windows\SysWOW64\nibwuknh\rusnhoyi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_753ec892deb630e1b540058617837fdfaeabdae4078bc0917c055a805d4752e7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2380

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\rusnhoyi.exe

Filesize
13.1MB

MD5
0c5a9f05a1dd937785603499f1438bdc

SHA1
d6f2bae54970ec701ee0113e1f81e1f8c33c0fce

SHA256
b86569b357593464ebdf8a733a8dd2a26d6b2a4bef25505829a74527f73956ec

SHA512
ad6cac4890f9ea902e267f79c953c558c8fd21bf985d60a38ccfc55c11468106306af2762f35d36cc7e52c92b7b987612919a05de5c057ee4cf7ecf8836bf371

Download Submit
memory/2328-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2328-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2328-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2328-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2380-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2380-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2380-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2380-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads