tofsee | 8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
27/12/2024, 02:40

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General

Target

JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe
Size

234KB
MD5

5722b3f6ae81d9b1578fcc798063b345
SHA1

f88b48d57a4452b53f0752e7514fdea6072f4b57
SHA256

8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937
SHA512

e33bf3a8d3872eb917a6895ed2f53b22216d558abf561a9cbba6defba7ec4c6e3a9d5798fe4f2e35813f3fad699787598a3b44be19eba3d086ecff75cd95914f
SSDEEP

6144:Poi7E6trwhkr0QGcZHb8S68vy3fMw6S65:Px7E6trwi0QGchG0uMwO

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\vufqqlsk = "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
1192	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\vufqqlsk\ImagePath = "C:\\Windows\\SysWOW64\\vufqqlsk\\vawompb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2052	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2192	vawompb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2192 set thread context of 2052	2192	vawompb.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2456	sc.exe
2768	sc.exe
2936	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vawompb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 1956 wrote to memory of 2552	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	31
PID 1956 wrote to memory of 2552	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	31
PID 1956 wrote to memory of 2552	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	31
PID 1956 wrote to memory of 2552	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	31
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	33
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	33
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	33
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	33
PID 1956 wrote to memory of 2456	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	35
PID 1956 wrote to memory of 2456	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	35
PID 1956 wrote to memory of 2456	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	35
PID 1956 wrote to memory of 2456	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	35
PID 1956 wrote to memory of 2768	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	37
PID 1956 wrote to memory of 2768	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	37
PID 1956 wrote to memory of 2768	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	37
PID 1956 wrote to memory of 2768	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	37
PID 1956 wrote to memory of 2936	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	39
PID 1956 wrote to memory of 2936	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	39
PID 1956 wrote to memory of 2936	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	39
PID 1956 wrote to memory of 2936	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	39
PID 1956 wrote to memory of 1192	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	42
PID 1956 wrote to memory of 1192	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	42
PID 1956 wrote to memory of 1192	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	42
PID 1956 wrote to memory of 1192	1956	JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe	42
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44
PID 2192 wrote to memory of 2052	2192	vawompb.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vufqqlsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vawompb.exe" C:\Windows\SysWOW64\vufqqlsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vufqqlsk binPath= "C:\Windows\SysWOW64\vufqqlsk\vawompb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vufqqlsk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vufqqlsk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- 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:1192

C:\Windows\SysWOW64\vufqqlsk\vawompb.exe
C:\Windows\SysWOW64\vufqqlsk\vawompb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ce1a5b895ecaca526fa22d661a99b5b3fd0c125fb778ce2896946201717e937.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- 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:2052

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\vawompb.exe

Filesize
12.0MB

MD5
6c5c9b02f670116ecdb2c70bac99810e

SHA1
d84e999a225a6f2e2d6c700dc2b2c346f93a0adc

SHA256
5779c87f09ef864cff9570e9336c628cfbf85fddd8d3eebd72e11278529e96ce

SHA512
4d4c88d178e7c6a81168e3fc56fabb07c21ed874edcd20735aad98051842dbe8d97506a5d4085bc5dc070ea130a4e2868bdbe5523c6a1ef5ad71757a9f7ed15c

Download Submit
memory/1956-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1956-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/1956-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1956-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2052-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2052-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2052-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2052-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2052-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2192-16-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads