tofsee | c5982c660c33b116a63036a6df243f3093da33639542b76ae9870163e046f0ca

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 01:13

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General

Target

JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe
Size

13.2MB
MD5

05d588b52f6f5afd60121a0dd91860ec
SHA1

2a39717941dd6c7ff0f6ee5a57f3eed0c400e940
SHA256

c5982c660c33b116a63036a6df243f3093da33639542b76ae9870163e046f0ca
SHA512

a1891e5d0b691c280f49dc44ae020a2303edb127c1449c17c8beaa8aa78a7e2334695990618b1de866069e4dba7eab376780427b63a2091673418104979bd69f
SSDEEP

196608:SxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxJ:

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\seubjhsj = "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
2904	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\seubjhsj\ImagePath = "C:\\Windows\\SysWOW64\\seubjhsj\\awllqxdu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2656	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	awllqxdu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2656	2876	awllqxdu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2104	sc.exe
2728	sc.exe
2348	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	awllqxdu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2156	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	30
PID 2516 wrote to memory of 2156	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	30
PID 2516 wrote to memory of 2156	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	30
PID 2516 wrote to memory of 2156	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	30
PID 2516 wrote to memory of 1724	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	32
PID 2516 wrote to memory of 1724	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	32
PID 2516 wrote to memory of 1724	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	32
PID 2516 wrote to memory of 1724	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	32
PID 2516 wrote to memory of 2348	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	34
PID 2516 wrote to memory of 2348	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	34
PID 2516 wrote to memory of 2348	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	34
PID 2516 wrote to memory of 2348	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	34
PID 2516 wrote to memory of 2104	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	36
PID 2516 wrote to memory of 2104	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	36
PID 2516 wrote to memory of 2104	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	36
PID 2516 wrote to memory of 2104	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	36
PID 2516 wrote to memory of 2728	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	38
PID 2516 wrote to memory of 2728	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	38
PID 2516 wrote to memory of 2728	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	38
PID 2516 wrote to memory of 2728	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	38
PID 2516 wrote to memory of 2904	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	41
PID 2516 wrote to memory of 2904	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	41
PID 2516 wrote to memory of 2904	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	41
PID 2516 wrote to memory of 2904	2516	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	41
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43
PID 2876 wrote to memory of 2656	2876	awllqxdu.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\seubjhsj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awllqxdu.exe" C:\Windows\SysWOW64\seubjhsj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create seubjhsj binPath= "C:\Windows\SysWOW64\seubjhsj\awllqxdu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description seubjhsj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start seubjhsj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- 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:2904

C:\Windows\SysWOW64\seubjhsj\awllqxdu.exe
C:\Windows\SysWOW64\seubjhsj\awllqxdu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.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:2656

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\awllqxdu.exe

Filesize
13.1MB

MD5
275aa88446677017546c3f023a059a13

SHA1
de9da3071412f3c6eccd6bc32fa3a79b032344f6

SHA256
61af2e8af3e247473b824fd85959394755785a5a9d970c91c8b830ac4a6a717e

SHA512
783aba73724daa991464e8b4d1f297fe5dbc7efe1f2f9159d87ccecbc24e2acb83917fe6f0a603ea90f1798b4c3339446d3b731e9f5060f8b50c79a0d5333c13

Download Submit
memory/2516-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2516-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-1-0x00000000002C0000-0x00000000002D3000-memory.dmp

Filesize
76KB

Download
memory/2516-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-8-0x00000000002C0000-0x00000000002D3000-memory.dmp

Filesize
76KB

Download
memory/2516-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2516-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2656-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2876-14-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads