tofsee | c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c

Analysis

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

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 12:38

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General

Target

JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe
Size

178KB
MD5

57f3a7655c60ebabced5575c5fd57e3c
SHA1

200a560ed809660e113264a43b16608e5d494d2b
SHA256

c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c
SHA512

743815293bc53a22accbdcd5d22e426c594a2325aabd089de4734828e20d6c912ea25301ad7feb26ec9f659e0efd3681131859a260ea3a1cb9f5a272ceb0bd79
SSDEEP

3072:J7PGcGloEehA+H1Hg6X6FmANY/0SvMF84XLlm:DGWEehA+H1AeYY//kFDm

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\uxxgylrq = "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
2796	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\uxxgylrq\ImagePath = "C:\\Windows\\SysWOW64\\uxxgylrq\\jtylsnmb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	jtylsnmb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2448 set thread context of 2684	2448	jtylsnmb.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2720	sc.exe
2916	sc.exe
2932	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.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	jtylsnmb.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2768	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	31
PID 2956 wrote to memory of 2768	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	31
PID 2956 wrote to memory of 2768	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	31
PID 2956 wrote to memory of 2768	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	31
PID 2956 wrote to memory of 2924	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	33
PID 2956 wrote to memory of 2924	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	33
PID 2956 wrote to memory of 2924	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	33
PID 2956 wrote to memory of 2924	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	33
PID 2956 wrote to memory of 2916	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	35
PID 2956 wrote to memory of 2916	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	35
PID 2956 wrote to memory of 2916	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	35
PID 2956 wrote to memory of 2916	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	35
PID 2956 wrote to memory of 2932	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	37
PID 2956 wrote to memory of 2932	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	37
PID 2956 wrote to memory of 2932	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	37
PID 2956 wrote to memory of 2932	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	37
PID 2956 wrote to memory of 2720	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	39
PID 2956 wrote to memory of 2720	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	39
PID 2956 wrote to memory of 2720	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	39
PID 2956 wrote to memory of 2720	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	39
PID 2956 wrote to memory of 2796	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	42
PID 2956 wrote to memory of 2796	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	42
PID 2956 wrote to memory of 2796	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	42
PID 2956 wrote to memory of 2796	2956	JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe	42
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44
PID 2448 wrote to memory of 2684	2448	jtylsnmb.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uxxgylrq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jtylsnmb.exe" C:\Windows\SysWOW64\uxxgylrq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uxxgylrq binPath= "C:\Windows\SysWOW64\uxxgylrq\jtylsnmb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uxxgylrq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uxxgylrq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- 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:2796

C:\Windows\SysWOW64\uxxgylrq\jtylsnmb.exe
C:\Windows\SysWOW64\uxxgylrq\jtylsnmb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3a67604df3acd172fca28b9f83e482bd2c21f217f28a545f3f6bc4ad7f30a8c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- 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:2684

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\jtylsnmb.exe

Filesize
11.6MB

MD5
6bd47afba674b9298624e2732298d345

SHA1
9478e74ed9f064b7bf357cfd15cc71c3e299ec16

SHA256
b4170b6916cbe35c645ccfd248b9221476d70cc0283af68ae3c452a7fe8b6648

SHA512
c636f341b5d0c3fad308632c40b2ea2dbd8c8ea1afbba7680781229df62cce74bf047494735fad47f882ea8e04045c9b9fd96a3a03b2762b851aff3ee89a10a7

Download Submit
memory/2448-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2684-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2956-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2956-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2956-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2956-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2956-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2956-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2956-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads