tofsee | e44d53782bd777950f51c933a0d1b576c7804456d3cc87ad63f44b7dc424e817

Analysis

max time kernel
149s
max time network
158s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 23:17

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General

Target

JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe
Size

13.8MB
MD5

010d8301c1f6d3953fde5e115bef1fdd
SHA1

fe225b1ab183a61f2a1cfc2434f5e23769a1ac7a
SHA256

e44d53782bd777950f51c933a0d1b576c7804456d3cc87ad63f44b7dc424e817
SHA512

5a9a48365f219de04aab19769109a7ee4f12f0ece9d8e9e2dbdfef108082d95920db193dd4b73448b233f581c021240267796a7f77fc997c12513a6f8f577464
SSDEEP

196608:kxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx3:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\utxfjlfr = "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
1876	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\utxfjlfr\ImagePath = "C:\\Windows\\SysWOW64\\utxfjlfr\\ejigwcla.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2640	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	ejigwcla.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2640	2784	ejigwcla.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2676	sc.exe
2688	sc.exe
2708	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	ejigwcla.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2788	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	30
PID 2816 wrote to memory of 2788	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	30
PID 2816 wrote to memory of 2788	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	30
PID 2816 wrote to memory of 2788	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	30
PID 2816 wrote to memory of 2872	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	32
PID 2816 wrote to memory of 2872	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	32
PID 2816 wrote to memory of 2872	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	32
PID 2816 wrote to memory of 2872	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	32
PID 2816 wrote to memory of 2688	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	34
PID 2816 wrote to memory of 2688	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	34
PID 2816 wrote to memory of 2688	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	34
PID 2816 wrote to memory of 2688	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	34
PID 2816 wrote to memory of 2708	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	36
PID 2816 wrote to memory of 2708	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	36
PID 2816 wrote to memory of 2708	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	36
PID 2816 wrote to memory of 2708	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	36
PID 2816 wrote to memory of 2676	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	38
PID 2816 wrote to memory of 2676	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	38
PID 2816 wrote to memory of 2676	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	38
PID 2816 wrote to memory of 2676	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	38
PID 2816 wrote to memory of 1876	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	41
PID 2816 wrote to memory of 1876	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	41
PID 2816 wrote to memory of 1876	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	41
PID 2816 wrote to memory of 1876	2816	JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe	41
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43
PID 2784 wrote to memory of 2640	2784	ejigwcla.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\utxfjlfr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejigwcla.exe" C:\Windows\SysWOW64\utxfjlfr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create utxfjlfr binPath= "C:\Windows\SysWOW64\utxfjlfr\ejigwcla.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description utxfjlfr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start utxfjlfr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:1876

C:\Windows\SysWOW64\utxfjlfr\ejigwcla.exe
C:\Windows\SysWOW64\utxfjlfr\ejigwcla.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_010d8301c1f6d3953fde5e115bef1fdd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2640

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\ejigwcla.exe

Filesize
13.7MB

MD5
dcb1774d5480720b8214c7ee17012c6a

SHA1
62cf6568b4d1b550cc8421d72ce85e161bb487cc

SHA256
7c1a75cd3c84b4dc3bc4bcc6e8cfd3a439e979f3a5c853124a12c1551158a8f1

SHA512
ed9184c187247dacdad218705e4288455a093b0e2be3887950cd84a6b6e0d969225195e29da67546e7da6eaae40dd508f060e5d0a81d1d21e8f8700f3109295e

Download Submit
memory/2640-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-16-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2816-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2816-0-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2816-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2816-8-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2816-7-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/2816-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2816-1-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads