tofsee | 02892e399fd7adc46318f48866a653013e7f70b15da1e174d405617fa6fdd816

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 18:18

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General

Target

f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
Size

13.8MB
MD5

f66228c86c71f368179321b0c382b638
SHA1

80721fc9d9609b198517f81f09ef281e110cd7f7
SHA256

02892e399fd7adc46318f48866a653013e7f70b15da1e174d405617fa6fdd816
SHA512

145d0dcefebdaf7dae83ecffe66d4857ec4cea9e863b8d21f8f28fa114f376d05b7774b3184907805a6039bd0dc05042b972ead4163b3d3b3b4e990544f22998
SSDEEP

98304:Pjhd88888888888888888888888888888888888888888888888888888888888Q:P

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

176.111.174.19

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\wgsxsrnu = "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
2036	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\wgsxsrnu\ImagePath = "C:\\Windows\\SysWOW64\\wgsxsrnu\\xwwduqtu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2476	xwwduqtu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 580	2476	xwwduqtu.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2652	sc.exe
2592	sc.exe
2672	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 3000 wrote to memory of 2136	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	28
PID 3000 wrote to memory of 2136	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	28
PID 3000 wrote to memory of 2136	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	28
PID 3000 wrote to memory of 2136	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	28
PID 3000 wrote to memory of 2540	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2540	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2540	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2540	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2652	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	32
PID 3000 wrote to memory of 2652	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	32
PID 3000 wrote to memory of 2652	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	32
PID 3000 wrote to memory of 2652	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	32
PID 3000 wrote to memory of 2592	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	34
PID 3000 wrote to memory of 2592	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	34
PID 3000 wrote to memory of 2592	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	34
PID 3000 wrote to memory of 2592	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	34
PID 3000 wrote to memory of 2672	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	36
PID 3000 wrote to memory of 2672	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	36
PID 3000 wrote to memory of 2672	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	36
PID 3000 wrote to memory of 2672	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	36
PID 3000 wrote to memory of 2036	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	38
PID 3000 wrote to memory of 2036	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	38
PID 3000 wrote to memory of 2036	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	38
PID 3000 wrote to memory of 2036	3000	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	38
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41
PID 2476 wrote to memory of 580	2476	xwwduqtu.exe	41

C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgsxsrnu\
  2⤵
  PID:2136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xwwduqtu.exe" C:\Windows\SysWOW64\wgsxsrnu\
  2⤵
  PID:2540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wgsxsrnu binPath= "C:\Windows\SysWOW64\wgsxsrnu\xwwduqtu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wgsxsrnu "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wgsxsrnu
  2⤵
  - Launches sc.exe
  PID:2672
- 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:2036

C:\Windows\SysWOW64\wgsxsrnu\xwwduqtu.exe
C:\Windows\SysWOW64\wgsxsrnu\xwwduqtu.exe /d"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:580

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

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

Filesize
10.8MB

MD5
76922f450f9c1fa30505cd3e9efc6549

SHA1
73075009ca0b26fdbc80fd22d065e27df620014e

SHA256
969d58f5d34eab0e2a604111880243470072627745a281cb8829ec218afd7933

SHA512
6a88c9834d9ea545d2347417635a4704b1710383a2fda4d6439bfff453406f8d7e11d8ad269da964073c59eef1b4852975c2936ae93b617c856ab69dd0f0f7d9

Download Submit
memory/580-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/580-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/580-22-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/580-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/580-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/580-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/580-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2476-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2476-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2476-10-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/3000-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3000-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3000-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3000-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3000-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads