tofsee | 704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2

Analysis

max time kernel
144s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 10:44

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General

Target

JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe
Size

299KB
MD5

a31d942ddc979a8c1d46608d5aa428ef
SHA1

ddf40346d87a918d13bfe5f378a389c100538c59
SHA256

704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2
SHA512

3ca502da4715b3bb6dc2e3191a87e6d5f89cd4d64fcd4d4c25650b2f554724f60549aab01e3ec15fda6e86b797322077e9663e90bbe0367c91d5238db568ceb0
SSDEEP

6144:rcjMScmcUfbnJRoc904tsKZ4g+8IvhGDNGxty:rcjXf3V04tsKW78ShKGe

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

parubey.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\huclfhwz = "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
2864	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\huclfhwz\ImagePath = "C:\\Windows\\SysWOW64\\huclfhwz\\exmrkmjs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	exmrkmjs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2788	2876	exmrkmjs.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2976	sc.exe
2684	sc.exe
2760	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	exmrkmjs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.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 2204 wrote to memory of 536	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	31
PID 2204 wrote to memory of 536	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	31
PID 2204 wrote to memory of 536	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	31
PID 2204 wrote to memory of 536	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	31
PID 2204 wrote to memory of 932	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	33
PID 2204 wrote to memory of 932	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	33
PID 2204 wrote to memory of 932	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	33
PID 2204 wrote to memory of 932	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	33
PID 2204 wrote to memory of 2976	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	35
PID 2204 wrote to memory of 2976	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	35
PID 2204 wrote to memory of 2976	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	35
PID 2204 wrote to memory of 2976	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	35
PID 2204 wrote to memory of 2684	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	37
PID 2204 wrote to memory of 2684	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	37
PID 2204 wrote to memory of 2684	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	37
PID 2204 wrote to memory of 2684	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	37
PID 2204 wrote to memory of 2760	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	39
PID 2204 wrote to memory of 2760	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	39
PID 2204 wrote to memory of 2760	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	39
PID 2204 wrote to memory of 2760	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	39
PID 2204 wrote to memory of 2864	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	42
PID 2204 wrote to memory of 2864	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	42
PID 2204 wrote to memory of 2864	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	42
PID 2204 wrote to memory of 2864	2204	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	42
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44
PID 2876 wrote to memory of 2788	2876	exmrkmjs.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\huclfhwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\exmrkmjs.exe" C:\Windows\SysWOW64\huclfhwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create huclfhwz binPath= "C:\Windows\SysWOW64\huclfhwz\exmrkmjs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description huclfhwz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start huclfhwz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2864

C:\Windows\SysWOW64\huclfhwz\exmrkmjs.exe
C:\Windows\SysWOW64\huclfhwz\exmrkmjs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2788

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\exmrkmjs.exe

Filesize
13.0MB

MD5
db0e95cba57f08fa204dbcda14deb514

SHA1
55b53ee4899bb5f2462d87f7622e81a6cf958106

SHA256
ab83985262e89b368569072c239dfe50e71cf686e93fa9530e63620931d1bbbc

SHA512
ae91e15dfeba44233b75ca7176af807a86a02b5c3f860a41e0b95d8696d6548d79ae2e9334a265b8fabc127eb7001b4da77ae48eb2dc6e207e2e2167cb957e5e

Download Submit
memory/2204-7-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2204-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2204-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2204-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2204-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2204-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2788-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-17-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads