tofsee | bbe7d154232e8e07dd0aeeaadca111e11bd6814ea2c3dc1d6926b7a6f2d58693

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 04:17

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General

Target

aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe
Size

11.1MB
MD5

aaf40981d6a04afce2b036eb98670a9d
SHA1

e202b436f978d78253f0287fc7d1597e4079d5b0
SHA256

bbe7d154232e8e07dd0aeeaadca111e11bd6814ea2c3dc1d6926b7a6f2d58693
SHA512

267c6496d78e0895a0afab297727b588a130493c92c9a578aedbda138562c2b009a56467fe06017f207396b9208c7c90cf6f3fe5d1f373b9e80cdf98bf39acc3
SSDEEP

3072:trLSAaIXFM9X/WWIyOEfEDQMZWecFKmZ:9NWktyH9V

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ubivywxn = "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
1528	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\ubivywxn\ImagePath = "C:\\Windows\\SysWOW64\\ubivywxn\\psaaywaj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

psaaywaj.exe

pid	Process
2764	psaaywaj.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

psaaywaj.exe

description	pid	Process	procid_target
PID 2764 set thread context of 2712	2764	psaaywaj.exe	42

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2116	sc.exe
2072	sc.exe
2284	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:

svchost.exesc.exesc.exenetsh.exepsaaywaj.exeaaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.execmd.execmd.exesc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	psaaywaj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.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

Processes:

aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exepsaaywaj.exe

description	pid	Process	procid_target
PID 2904 wrote to memory of 2460	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	29
PID 2904 wrote to memory of 2460	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	29
PID 2904 wrote to memory of 2460	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	29
PID 2904 wrote to memory of 2460	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	29
PID 2904 wrote to memory of 2992	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	31
PID 2904 wrote to memory of 2992	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	31
PID 2904 wrote to memory of 2992	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	31
PID 2904 wrote to memory of 2992	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	31
PID 2904 wrote to memory of 2116	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	33
PID 2904 wrote to memory of 2116	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	33
PID 2904 wrote to memory of 2116	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	33
PID 2904 wrote to memory of 2116	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	33
PID 2904 wrote to memory of 2072	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	35
PID 2904 wrote to memory of 2072	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	35
PID 2904 wrote to memory of 2072	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	35
PID 2904 wrote to memory of 2072	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	35
PID 2904 wrote to memory of 2284	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	37
PID 2904 wrote to memory of 2284	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	37
PID 2904 wrote to memory of 2284	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	37
PID 2904 wrote to memory of 2284	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	37
PID 2904 wrote to memory of 1528	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	39
PID 2904 wrote to memory of 1528	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	39
PID 2904 wrote to memory of 1528	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	39
PID 2904 wrote to memory of 1528	2904	aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe	39
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42
PID 2764 wrote to memory of 2712	2764	psaaywaj.exe	42

C:\Users\Admin\AppData\Local\Temp\aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ubivywxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\psaaywaj.exe" C:\Windows\SysWOW64\ubivywxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ubivywxn binPath= "C:\Windows\SysWOW64\ubivywxn\psaaywaj.exe /d\"C:\Users\Admin\AppData\Local\Temp\aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ubivywxn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ubivywxn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- 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:1528

C:\Windows\SysWOW64\ubivywxn\psaaywaj.exe
C:\Windows\SysWOW64\ubivywxn\psaaywaj.exe /d"C:\Users\Admin\AppData\Local\Temp\aaf40981d6a04afce2b036eb98670a9d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2712

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\psaaywaj.exe

Filesize
13.2MB

MD5
f5279e06baa9c3b6a9d1976c0a471802

SHA1
5eae7ba43aeff32dbec85e9251cdec33a0a9fa1f

SHA256
ac16c4c5336517ef2ac79568ad4be5451a3e0429153e85c168141d301d10e8d6

SHA512
9f185f30262af6617888a1938227b04fef928fc901fb3c4b6c0e1e7e351efab1834b1c2a36ab447616766865bd3f6f00dffb4d718a2791ae5d1f8741926dc333

Download Submit
memory/2712-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-14-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2764-13-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2904-0-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download
memory/2904-1-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2904-5-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2904-6-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2904-2-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download