tofsee | 2b526e3d6299bab06aa1ddf22f546aa5a1972d39019ea98ccda44e75f0a74065

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 02:10

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General

Target

9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe
Size

11.8MB
MD5

9f3c94a238a6c4f521f1e7269ee03ea2
SHA1

4bace04fc096803ad06afd0bb1480fafb475ff2c
SHA256

2b526e3d6299bab06aa1ddf22f546aa5a1972d39019ea98ccda44e75f0a74065
SHA512

1ba61535510ac498649852f3e548e71d5dd0ad0ed455c2c5367d937bb994a68c8b5cac2aff0d45759c0203a3f5124f7463f2797413411eaeabc2899bb12c3a11
SSDEEP

98304:euuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuO:

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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\axjrwfqz = "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

Processes:

netsh.exe

pid	Process
2480	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\axjrwfqz\ImagePath = "C:\\Windows\\SysWOW64\\axjrwfqz\\gnlwbwky.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

gnlwbwky.exe

pid	Process
2924	gnlwbwky.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

gnlwbwky.exe

description	pid	Process	procid_target
PID 2924 set thread context of 2828	2924	gnlwbwky.exe	43

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2020	sc.exe
2964	sc.exe
3064	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

Processes:

netsh.exe

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

Processes:

sc.exegnlwbwky.exesvchost.exe9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.execmd.exesc.execmd.exesc.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gnlwbwky.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exegnlwbwky.exe

description	pid	Process	procid_target
PID 1736 wrote to memory of 3000	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	30
PID 1736 wrote to memory of 3000	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	30
PID 1736 wrote to memory of 3000	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	30
PID 1736 wrote to memory of 3000	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	30
PID 1736 wrote to memory of 2212	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	32
PID 1736 wrote to memory of 2212	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	32
PID 1736 wrote to memory of 2212	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	32
PID 1736 wrote to memory of 2212	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	32
PID 1736 wrote to memory of 2020	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	34
PID 1736 wrote to memory of 2020	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	34
PID 1736 wrote to memory of 2020	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	34
PID 1736 wrote to memory of 2020	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	34
PID 1736 wrote to memory of 2964	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	36
PID 1736 wrote to memory of 2964	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	36
PID 1736 wrote to memory of 2964	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	36
PID 1736 wrote to memory of 2964	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	36
PID 1736 wrote to memory of 3064	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	38
PID 1736 wrote to memory of 3064	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	38
PID 1736 wrote to memory of 3064	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	38
PID 1736 wrote to memory of 3064	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	38
PID 1736 wrote to memory of 2480	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	41
PID 1736 wrote to memory of 2480	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	41
PID 1736 wrote to memory of 2480	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	41
PID 1736 wrote to memory of 2480	1736	9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe	41
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43
PID 2924 wrote to memory of 2828	2924	gnlwbwky.exe	43

C:\Users\Admin\AppData\Local\Temp\9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\axjrwfqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gnlwbwky.exe" C:\Windows\SysWOW64\axjrwfqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create axjrwfqz binPath= "C:\Windows\SysWOW64\axjrwfqz\gnlwbwky.exe /d\"C:\Users\Admin\AppData\Local\Temp\9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description axjrwfqz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start axjrwfqz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- 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:2480

C:\Windows\SysWOW64\axjrwfqz\gnlwbwky.exe
C:\Windows\SysWOW64\axjrwfqz\gnlwbwky.exe /d"C:\Users\Admin\AppData\Local\Temp\9f3c94a238a6c4f521f1e7269ee03ea2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924
- 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:2828

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gnlwbwky.exe

Filesize
15.0MB

MD5
24b0cbfc52aa5f74fcc3caae146b0816

SHA1
42ebaa86d1b477eb9f0df19d0d9a2a6b10afaf13

SHA256
c185182922610b193b2a6c74cd68b8a64f8a903e81cc6e71a99b7c823a4f82a7

SHA512
52839a0b589d1c78606e142606d1c7f9b515b2ebea3ab130eb7be3e16471019f74ed3057c6cd801babb027de20fb583421e35aff902af8bb398361989b909093

Download Submit
memory/1736-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1736-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1736-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/1736-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1736-9-0x00000000002A0000-0x00000000002B3000-memory.dmp

Filesize
76KB

Download
memory/1736-2-0x00000000002A0000-0x00000000002B3000-memory.dmp

Filesize
76KB

Download
memory/2828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download