tofsee | f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd

Analysis

max time kernel
143s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 01:35

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General

Target

JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe
Size

209KB
MD5

029139e095eb6c94f87dd5d2b74a8e3b
SHA1

bd944e67580e3519b1c0e7d0978688a8f7a0c6df
SHA256

f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd
SHA512

7de905f79271edc0856e11090901deed59525782df87a8db1af92ddaed58adae3052a3db0185f488543745330adcdf6426552f0051b8cdf8ed9427a26300fdda
SSDEEP

3072:221lByeQXR4HJtywSjmkXRg6kKMdpDbW3KKiBZPwU3fB/tOvZxphgC:221lyyJtywGXRg6RMd5WsB73pOZF

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\bxjyhlcs = "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
2672	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\bxjyhlcs\ImagePath = "C:\\Windows\\SysWOW64\\bxjyhlcs\\jvhppapx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
308	jvhppapx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 308 set thread context of 2820	308	jvhppapx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2324	sc.exe
2944	sc.exe
2784	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	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	jvhppapx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2876	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	30
PID 2244 wrote to memory of 2876	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	30
PID 2244 wrote to memory of 2876	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	30
PID 2244 wrote to memory of 2876	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	30
PID 2244 wrote to memory of 640	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	32
PID 2244 wrote to memory of 640	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	32
PID 2244 wrote to memory of 640	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	32
PID 2244 wrote to memory of 640	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	32
PID 2244 wrote to memory of 2324	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	34
PID 2244 wrote to memory of 2324	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	34
PID 2244 wrote to memory of 2324	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	34
PID 2244 wrote to memory of 2324	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	34
PID 2244 wrote to memory of 2944	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	36
PID 2244 wrote to memory of 2944	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	36
PID 2244 wrote to memory of 2944	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	36
PID 2244 wrote to memory of 2944	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	36
PID 2244 wrote to memory of 2784	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	38
PID 2244 wrote to memory of 2784	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	38
PID 2244 wrote to memory of 2784	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	38
PID 2244 wrote to memory of 2784	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	38
PID 2244 wrote to memory of 2672	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	41
PID 2244 wrote to memory of 2672	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	41
PID 2244 wrote to memory of 2672	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	41
PID 2244 wrote to memory of 2672	2244	JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe	41
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43
PID 308 wrote to memory of 2820	308	jvhppapx.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bxjyhlcs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jvhppapx.exe" C:\Windows\SysWOW64\bxjyhlcs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bxjyhlcs binPath= "C:\Windows\SysWOW64\bxjyhlcs\jvhppapx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bxjyhlcs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bxjyhlcs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- 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:2672

C:\Windows\SysWOW64\bxjyhlcs\jvhppapx.exe
C:\Windows\SysWOW64\bxjyhlcs\jvhppapx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f38548a5d6c54e88538aabdfacbde0ee9948aec13f0550ba3f901c72725df0dd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:308
- 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:2820

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\jvhppapx.exe

Filesize
13.6MB

MD5
2f02380abe5bd4e7601e36327fc57f5e

SHA1
25ad0b0fa5416659e326c73ecec65943ec07f73d

SHA256
4a49fa555fa5f1a7ddaac1953f992a371991cc8fa69c684bbde65e2efd12d50c

SHA512
11263194109426dc636d622ec3b8df499e572bbb501cea3c8776ce1b5c81ab119d5084af547f010e0d40c2d4ce0e7553a877fb5f0fff60f7c10c9c60292c5c94

Download Submit
memory/308-16-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/2244-8-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/2244-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2244-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2244-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2244-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/2244-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2820-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2820-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads