tofsee | 92342ec75f66155c2510cda2f0834da03a26f188562dfe6838ba84844e8456b2

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 20:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe
Size

10.6MB
MD5

abae387019fcd635f8ae3ff49ab229e7
SHA1

f094288ddd33aaff716328fff79fc453f2f4180c
SHA256

92342ec75f66155c2510cda2f0834da03a26f188562dfe6838ba84844e8456b2
SHA512

4706a3e0a98f53944a812bd27f9f0d0bb16abcaef670bfced628140dad791825700c6bc3262dba96badc927b264ce7bbce19539f92cfd743b03a2cda546b1456
SSDEEP

3072:S0dYxvqagQYPbb1gFlSLMU+++++++++++++++++++++++++++++++++++++++++L:vdYrYP1gjSI

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

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\rhehrjmk = "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
2520	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\rhehrjmk\ImagePath = "C:\\Windows\\SysWOW64\\rhehrjmk\\wyrcjrfv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2320	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	wyrcjrfv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 2320	2636	wyrcjrfv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2192	sc.exe
2300	sc.exe
2660	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_abae387019fcd635f8ae3ff49ab229e7.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	wyrcjrfv.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2736	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	30
PID 2244 wrote to memory of 2736	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	30
PID 2244 wrote to memory of 2736	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	30
PID 2244 wrote to memory of 2736	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	30
PID 2244 wrote to memory of 2676	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	32
PID 2244 wrote to memory of 2676	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	32
PID 2244 wrote to memory of 2676	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	32
PID 2244 wrote to memory of 2676	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	32
PID 2244 wrote to memory of 2192	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	34
PID 2244 wrote to memory of 2192	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	34
PID 2244 wrote to memory of 2192	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	34
PID 2244 wrote to memory of 2192	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	34
PID 2244 wrote to memory of 2300	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	36
PID 2244 wrote to memory of 2300	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	36
PID 2244 wrote to memory of 2300	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	36
PID 2244 wrote to memory of 2300	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	36
PID 2244 wrote to memory of 2660	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	38
PID 2244 wrote to memory of 2660	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	38
PID 2244 wrote to memory of 2660	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	38
PID 2244 wrote to memory of 2660	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	38
PID 2244 wrote to memory of 2520	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	41
PID 2244 wrote to memory of 2520	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	41
PID 2244 wrote to memory of 2520	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	41
PID 2244 wrote to memory of 2520	2244	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	41
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43
PID 2636 wrote to memory of 2320	2636	wyrcjrfv.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.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\rhehrjmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wyrcjrfv.exe" C:\Windows\SysWOW64\rhehrjmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rhehrjmk binPath= "C:\Windows\SysWOW64\rhehrjmk\wyrcjrfv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rhehrjmk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rhehrjmk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2520

C:\Windows\SysWOW64\rhehrjmk\wyrcjrfv.exe
C:\Windows\SysWOW64\rhehrjmk\wyrcjrfv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2320

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.3MB

MD5
e30cff31006efff010abd5e380a7b699

SHA1
91f544e08f4710ce7842bb23180602763d08504e

SHA256
17559dfcc3dec2606a70a9f38154402e075adcc595afa8f631d80859df01ae30

SHA512
10dc7f6af0e4016dd7419c8f2d26f8428750d99040b4c623de2ac3dd8aa170361c5f801ce88bbc60242842b0d66f76abcf49698646ba29bc9dd53fdd9333f2bf

Download Submit
memory/2244-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

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

Filesize
84KB

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

Filesize
76KB

Download
memory/2244-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2244-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2244-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2320-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2320-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2320-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2320-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2320-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2636-15-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads