tofsee | 03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 12:33

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General

Target

JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe
Size

158KB
MD5

e66711396e9e59bd6e7af4fbc5edffc9
SHA1

3b959a56c5e50b57f0dafd949b3acbcbad0fdc63
SHA256

03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498
SHA512

18b7b47268aa87f41403ddcd394fc8ad141b215c7e3ea874ebfc6fc645c877d90221487d371b9c2c58d5ddbe3ef21099d88b0088215c0637115d6f6840b3a6ec
SSDEEP

1536:qaCl+iglHErWOeaAnDt45cNQ6nVGAkzKVuMqYlHHKLoPv+FoU/WlLFD2b31Xls2K:5FqSV7W5D6uMqqHaQv++LFD2bFi2fPq

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\bhkaszcy = "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
2856	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\bhkaszcy\ImagePath = "C:\\Windows\\SysWOW64\\bhkaszcy\\uzjzns.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	uzjzns.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 2636	2620	uzjzns.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2136	sc.exe
2816	sc.exe
2764	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	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.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	netsh.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	uzjzns.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 236 wrote to memory of 1864	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	30
PID 236 wrote to memory of 1864	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	30
PID 236 wrote to memory of 1864	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	30
PID 236 wrote to memory of 1864	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	30
PID 236 wrote to memory of 2536	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	32
PID 236 wrote to memory of 2536	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	32
PID 236 wrote to memory of 2536	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	32
PID 236 wrote to memory of 2536	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	32
PID 236 wrote to memory of 2136	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	34
PID 236 wrote to memory of 2136	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	34
PID 236 wrote to memory of 2136	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	34
PID 236 wrote to memory of 2136	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	34
PID 236 wrote to memory of 2816	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	36
PID 236 wrote to memory of 2816	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	36
PID 236 wrote to memory of 2816	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	36
PID 236 wrote to memory of 2816	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	36
PID 236 wrote to memory of 2764	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	38
PID 236 wrote to memory of 2764	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	38
PID 236 wrote to memory of 2764	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	38
PID 236 wrote to memory of 2764	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	38
PID 236 wrote to memory of 2856	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	41
PID 236 wrote to memory of 2856	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	41
PID 236 wrote to memory of 2856	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	41
PID 236 wrote to memory of 2856	236	JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe	41
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43
PID 2620 wrote to memory of 2636	2620	uzjzns.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bhkaszcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzjzns.exe" C:\Windows\SysWOW64\bhkaszcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bhkaszcy binPath= "C:\Windows\SysWOW64\bhkaszcy\uzjzns.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bhkaszcy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bhkaszcy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- 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:2856

C:\Windows\SysWOW64\bhkaszcy\uzjzns.exe
C:\Windows\SysWOW64\bhkaszcy\uzjzns.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03fd0195f7f5445ad12b2e63c3ad7684e90553c779117da8bb7c9876c38aa498.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- 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:2636

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\uzjzns.exe

Filesize
13.5MB

MD5
d62f5fb4d532036b964496f3b7bfcb60

SHA1
aab023d61e042e14535dc4aa5114384f4afe0a2a

SHA256
296e295317f5e60591e9f33d81481b3486ff14a532ec6d416e59bb0b8d7662bc

SHA512
4292863673122db2611b5f32c146932e94cacad831c92ff49caf567f822e88a7554cb1a34a4d3b15b2e5811e25588a0e4ca8240ed78025e2096b6fae2630e54b

Download Submit
memory/236-7-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/236-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/236-1-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/236-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/236-8-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/236-0-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/236-6-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2620-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2636-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads