tofsee | 2e9099120e555ba687583302ed136d06338c611be9c4519e90d7b3e90a38f3a6

Analysis

max time kernel
146s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2024, 02:16

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General

Target
3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe
Size 12.1MB
Sample240712-cqa8maxbkf
SHA256 2e9099120e555ba687583302ed136d06338c611be9c4519e90d7b3e90a38f3a6
MD5 3ba29520a9369d1978155deb7aff8d9c
SHA1 2fda4e028ef4d910aaed2743461b514e4acb91e2
SHA512 036dd906e408e663801f9954565398f11943b3d00564b8bf0e60d63ee74e202ccd481b71df5b13645f83e85375e0e20545d74d9591af4b073a81db6cc6872342
SSDEEP 393216:wmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm7:
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee 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
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
3104	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\djpubjtt\ImagePath = "C:\\Windows\\SysWOW64\\djpubjtt\\zxmysozp.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4804	zxmysozp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 2880	4804	zxmysozp.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4736	sc.exe
4288	sc.exe
1336	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2348	1052	WerFault.exe	82
4808	4804	WerFault.exe	96

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 2932	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	86
PID 1052 wrote to memory of 2932	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	86
PID 1052 wrote to memory of 2932	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	86
PID 1052 wrote to memory of 624	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	88
PID 1052 wrote to memory of 624	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	88
PID 1052 wrote to memory of 624	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	88
PID 1052 wrote to memory of 4736	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	90
PID 1052 wrote to memory of 4736	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	90
PID 1052 wrote to memory of 4736	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	90
PID 1052 wrote to memory of 4288	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	92
PID 1052 wrote to memory of 4288	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	92
PID 1052 wrote to memory of 4288	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	92
PID 1052 wrote to memory of 1336	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	94
PID 1052 wrote to memory of 1336	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	94
PID 1052 wrote to memory of 1336	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	94
PID 1052 wrote to memory of 3104	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	97
PID 1052 wrote to memory of 3104	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	97
PID 1052 wrote to memory of 3104	1052	3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe	97
PID 4804 wrote to memory of 2880	4804	zxmysozp.exe	102
PID 4804 wrote to memory of 2880	4804	zxmysozp.exe	102
PID 4804 wrote to memory of 2880	4804	zxmysozp.exe	102
PID 4804 wrote to memory of 2880	4804	zxmysozp.exe	102
PID 4804 wrote to memory of 2880	4804	zxmysozp.exe	102

C:\Users\Admin\AppData\Local\Temp\3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\djpubjtt\
  2⤵
  PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zxmysozp.exe" C:\Windows\SysWOW64\djpubjtt\
  2⤵
  PID:624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create djpubjtt binPath= "C:\Windows\SysWOW64\djpubjtt\zxmysozp.exe /d\"C:\Users\Admin\AppData\Local\Temp\3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description djpubjtt "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:4288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start djpubjtt
  2⤵
  - Launches sc.exe
  PID:1336
- 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
  PID:3104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1216
  2⤵
  - Program crash
  PID:2348

C:\Windows\SysWOW64\djpubjtt\zxmysozp.exe
C:\Windows\SysWOW64\djpubjtt\zxmysozp.exe /d"C:\Users\Admin\AppData\Local\Temp\3ba29520a9369d1978155deb7aff8d9c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:2880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 520
  2⤵
  - Program crash
  PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1052 -ip 1052
1⤵
PID:1740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4804 -ip 4804
1⤵
PID:3888

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

zxmysozp.exe

Path C:\Users\Admin\AppData\Local\Temp\zxmysozp.exe
Size 14.8MB
SHA256 a2847bf4882dc937570b3fb9dffa758dfdc00420cb46ef0441fd1c7236c1454a
MD5 e3f64a4af1adb2b105b89897c5642a86
SHA1 b00f3fbb891639566f7e138ab0103dce54733774
SHA512 776b163a252da04ff0dd22608a9e4fef30882864d9ad263e945a18f66a110b424d5c8955e34fe27faedd02242aca52844abcc5e5998565fc5f66582af367d96a
SSDEEP 393216:vmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmW:
MD5 SHA1 SHA512 SSDEEP

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memory/1052-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/1052-4-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1052-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/1052-8-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/1052-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1052-1-0x0000000000660000-0x0000000000760000-memory.dmp

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memory/2880-13-0x0000000000A40000-0x0000000000A55000-memory.dmp

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memory/2880-16-0x0000000000A40000-0x0000000000A55000-memory.dmp

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memory/2880-17-0x0000000000A40000-0x0000000000A55000-memory.dmp

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memory/4804-12-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4804-11-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4804-14-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4804-19-0x0000000000400000-0x0000000000455000-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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