tofsee | 90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 02:01

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General

Target

JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe
Size

238KB
MD5

6308912dbac2a0b3bb83a38428b05928
SHA1

95ae34a688611808b01c1994cdbced788273325d
SHA256

90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684
SHA512

c013c50c0796576bc6a1b581b88e080ebc63a1089c2937527c56b5edbd5aff9a2f1042e9e275736a51a4df48f13efcfa286cbf13b8f59cb5821cb22e31279114
SSDEEP

6144:LMfeF3QoSEUI692A/Im7sseZfG+ZH2KsItnT:Lu0goSEo9226X3WKF

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\jrcdkhxi = "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
2572	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\jrcdkhxi\ImagePath = "C:\\Windows\\SysWOW64\\jrcdkhxi\\cfygegoy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1488	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2692	cfygegoy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 1488	2692	cfygegoy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2908	sc.exe
2608	sc.exe
3008	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	cfygegoy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2868	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	30
PID 2412 wrote to memory of 2868	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	30
PID 2412 wrote to memory of 2868	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	30
PID 2412 wrote to memory of 2868	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	30
PID 2412 wrote to memory of 2732	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	32
PID 2412 wrote to memory of 2732	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	32
PID 2412 wrote to memory of 2732	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	32
PID 2412 wrote to memory of 2732	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	32
PID 2412 wrote to memory of 3008	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	34
PID 2412 wrote to memory of 3008	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	34
PID 2412 wrote to memory of 3008	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	34
PID 2412 wrote to memory of 3008	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	34
PID 2412 wrote to memory of 2608	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	36
PID 2412 wrote to memory of 2608	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	36
PID 2412 wrote to memory of 2608	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	36
PID 2412 wrote to memory of 2608	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	36
PID 2412 wrote to memory of 2908	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	38
PID 2412 wrote to memory of 2908	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	38
PID 2412 wrote to memory of 2908	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	38
PID 2412 wrote to memory of 2908	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	38
PID 2412 wrote to memory of 2572	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	41
PID 2412 wrote to memory of 2572	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	41
PID 2412 wrote to memory of 2572	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	41
PID 2412 wrote to memory of 2572	2412	JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe	41
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43
PID 2692 wrote to memory of 1488	2692	cfygegoy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jrcdkhxi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cfygegoy.exe" C:\Windows\SysWOW64\jrcdkhxi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jrcdkhxi binPath= "C:\Windows\SysWOW64\jrcdkhxi\cfygegoy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jrcdkhxi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jrcdkhxi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:2572

C:\Windows\SysWOW64\jrcdkhxi\cfygegoy.exe
C:\Windows\SysWOW64\jrcdkhxi\cfygegoy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90601a67e1ff329483cdb59a6e76125533415bad9a395ed3e09d7f00da5c3684.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- 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:1488

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:\Windows\SysWOW64\jrcdkhxi\cfygegoy.exe

Filesize
13.6MB

MD5
39a0fc4a1aeebd495c7198d65a0cf1ac

SHA1
33d818d0c35d6750ed82b6154710d2e04459d669

SHA256
bd1511c13df8e84a672c8c69ab55ddcb122fc5ddfc38388500c23a54cd54517b

SHA512
e247b16e0f6e4c4015a2a70dd41f5d0ca339775e2ef904c993f50ce8b750d9b6f54167d3b16b27a59e2386fdfbdddfe1a874054c69442289ddfc5da1d4fbcff3

Download Submit
memory/1488-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1488-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1488-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1488-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1488-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2412-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2412-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2412-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2412-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2412-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x0000000000400000-0x000000000086B000-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