tofsee | 789e9198d141f39bf030563420328dab4477ac3d60cc87244c6aac684f0aac5e

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/11/2024, 16:01

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General

Target

b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe
Size

13.6MB
MD5

b253f5b8d1f9aad76587136d065831e2
SHA1

1b52e954d04c96a82e24f74ed38ab1136cdec4f6
SHA256

789e9198d141f39bf030563420328dab4477ac3d60cc87244c6aac684f0aac5e
SHA512

1ab9b1c968ab3ff32b9e8e19d1bd7d6cd1d19ae601ea86cf20eab684036c0b7a0464f45e36a46468c4684f84eb61217520ee14be862a72e5c075e4751c12a4c3
SSDEEP

98304:cvjOF//////////////////////////////////////////////////////////H:m

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\kxcybaaj = "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
2616	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\kxcybaaj\ImagePath = "C:\\Windows\\SysWOW64\\kxcybaaj\\irlqihcy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	irlqihcy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 392	2576	irlqihcy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2876	sc.exe
2820	sc.exe
2792	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b253f5b8d1f9aad76587136d065831e2_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	irlqihcy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 3020 wrote to memory of 2860	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	30
PID 3020 wrote to memory of 2860	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	30
PID 3020 wrote to memory of 2860	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	30
PID 3020 wrote to memory of 2860	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	30
PID 3020 wrote to memory of 2716	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	32
PID 3020 wrote to memory of 2716	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	32
PID 3020 wrote to memory of 2716	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	32
PID 3020 wrote to memory of 2716	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	32
PID 3020 wrote to memory of 2876	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	34
PID 3020 wrote to memory of 2876	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	34
PID 3020 wrote to memory of 2876	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	34
PID 3020 wrote to memory of 2876	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	34
PID 3020 wrote to memory of 2820	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	36
PID 3020 wrote to memory of 2820	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	36
PID 3020 wrote to memory of 2820	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	36
PID 3020 wrote to memory of 2820	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	36
PID 3020 wrote to memory of 2792	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	38
PID 3020 wrote to memory of 2792	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	38
PID 3020 wrote to memory of 2792	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	38
PID 3020 wrote to memory of 2792	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	38
PID 3020 wrote to memory of 2616	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	41
PID 3020 wrote to memory of 2616	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	41
PID 3020 wrote to memory of 2616	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	41
PID 3020 wrote to memory of 2616	3020	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	41
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43
PID 2576 wrote to memory of 392	2576	irlqihcy.exe	43

C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kxcybaaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\irlqihcy.exe" C:\Windows\SysWOW64\kxcybaaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kxcybaaj binPath= "C:\Windows\SysWOW64\kxcybaaj\irlqihcy.exe /d\"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kxcybaaj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kxcybaaj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- 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:2616

C:\Windows\SysWOW64\kxcybaaj\irlqihcy.exe
C:\Windows\SysWOW64\kxcybaaj\irlqihcy.exe /d"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- 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:392

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\irlqihcy.exe

Filesize
14.5MB

MD5
5a3714ece43bc2c050084511227f591c

SHA1
dad542ca92e712ba5af4da9aef695d83d3b5fc02

SHA256
62b1db62c43eb403119798ca110b968e7f0c5ea6c46c156c6204a3756598be70

SHA512
a997c61f47052bfef67080a70d103d04e687dd7c0629c58b6bea13b785659d920721bba7ec7dbbfed6bf61ca44767c83d7be2647da65d1f67523d5ba455fee01

Download Submit
memory/392-10-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/392-15-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/392-13-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/392-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/392-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2576-16-0x0000000000400000-0x0000000000C1F000-memory.dmp

Filesize
8.1MB

Download
memory/3020-1-0x0000000000DC0000-0x0000000000EC0000-memory.dmp

Filesize
1024KB

Download
memory/3020-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3020-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3020-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3020-7-0x0000000000400000-0x0000000000C1F000-memory.dmp

Filesize
8.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads