tofsee | 93474a8dc670337caf536fd0eac0d70d5d6856fc46db7493f8a982017c9e68c3

Analysis

max time kernel
143s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/04/2024, 16:27

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General

Target
fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe
Size 14.2MB
Sample240420-tybmssda7x
SHA256 93474a8dc670337caf536fd0eac0d70d5d6856fc46db7493f8a982017c9e68c3
MD5 fd25a9c84be208b088379553ff30606c
SHA1 6de24b33594778df7f9c3fb4dc695e0434b4c474
SHA512 360d771d0ff2991dabd265fef1e52d02a7faae42e8cbae3ddf06ade70e5bab01adf9a7d6bf26062bc054fde2c7bad224fa9fa15cd5282b1f68938ce0ece3c566
SSDEEP 98304:lNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllL:jW
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion persistence 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

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\jipoxrqc = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1964	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\jipoxrqc\ImagePath = "C:\\Windows\\SysWOW64\\jipoxrqc\\ytxpfqsq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2000	ytxpfqsq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 704	2000	ytxpfqsq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1124	sc.exe
1320	sc.exe
1260	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2340	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2340	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2340	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2340	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2332	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2332	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2332	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2332	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	32
PID 2220 wrote to memory of 1124	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	34
PID 2220 wrote to memory of 1124	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	34
PID 2220 wrote to memory of 1124	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	34
PID 2220 wrote to memory of 1124	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	34
PID 2220 wrote to memory of 1320	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	36
PID 2220 wrote to memory of 1320	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	36
PID 2220 wrote to memory of 1320	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	36
PID 2220 wrote to memory of 1320	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	36
PID 2220 wrote to memory of 1260	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	38
PID 2220 wrote to memory of 1260	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	38
PID 2220 wrote to memory of 1260	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	38
PID 2220 wrote to memory of 1260	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	38
PID 2220 wrote to memory of 1964	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	40
PID 2220 wrote to memory of 1964	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	40
PID 2220 wrote to memory of 1964	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	40
PID 2220 wrote to memory of 1964	2220	fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe	40
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43
PID 2000 wrote to memory of 704	2000	ytxpfqsq.exe	43

C:\Users\Admin\AppData\Local\Temp\fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jipoxrqc\
  2⤵
  PID:2340
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytxpfqsq.exe" C:\Windows\SysWOW64\jipoxrqc\
  2⤵
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jipoxrqc binPath= "C:\Windows\SysWOW64\jipoxrqc\ytxpfqsq.exe /d\"C:\Users\Admin\AppData\Local\Temp\fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jipoxrqc "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:1320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jipoxrqc
  2⤵
  - Launches sc.exe
  PID:1260
- 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
  PID:1964

C:\Windows\SysWOW64\jipoxrqc\ytxpfqsq.exe
C:\Windows\SysWOW64\jipoxrqc\ytxpfqsq.exe /d"C:\Users\Admin\AppData\Local\Temp\fd25a9c84be208b088379553ff30606c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

ytxpfqsq.exe

Path C:\Users\Admin\AppData\Local\Temp\ytxpfqsq.exe
Size 12.1MB
SHA256 79154d63df124db59dccc7e3ebd3a9ecf58cc0caabf63a1526fa71308d7a2765
MD5 3294281db7f7e431e4b047b45c12705a
SHA1 efbba44357ba621d8eaa4ab2a15bb842afdb588e
SHA512 8e84518480704a1c4413855b2f356da55be39b211b98dda4fbb847a1f725a88ca77f03cfec62787feee90c5980732bfbc3aacba923c0330bbbe5d2215f60c3d8
SSDEEP 98304:sNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllH:aW
MD5 SHA1 SHA512 SSDEEP

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memory/704-20-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-14-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-22-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-21-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-11-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-18-0x0000000000080000-0x0000000000095000-memory.dmp

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memory/704-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2000-19-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2000-10-0x0000000003780000-0x0000000003880000-memory.dmp

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memory/2000-17-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2220-4-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2220-8-0x0000000000220000-0x0000000000233000-memory.dmp

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memory/2220-1-0x0000000003890000-0x0000000003990000-memory.dmp

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memory/2220-6-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2220-2-0x0000000000220000-0x0000000000233000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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