tofsee | 1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30/12/2024, 05:12

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General

Target

JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe
Size

177KB
MD5

6423f85e4b535c44776aef880d374f69
SHA1

deda6c4c481520b746aadd6a2cd8d2a3b2ab7387
SHA256

1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7
SHA512

67e9aeeb739a022bcdd246802b7c2aafbb68a5b34d2c47b34ba4463e12304a4452447a509ac4408d2e461f9e118f419c664db9004cb0656cb2e1e5eaf818436f
SSDEEP

3072:M76gzl90ytyk8oeETSOZa30H3iVr8vYSfv5fo88STbR:6l90yYxnmgKiVroYSH537TbR

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\sdehbsko = "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
2716	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\sdehbsko\ImagePath = "C:\\Windows\\SysWOW64\\sdehbsko\\disiwb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	disiwb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2616	2724	disiwb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2668	sc.exe
2928	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.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	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	disiwb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2656	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	30
PID 1900 wrote to memory of 2656	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	30
PID 1900 wrote to memory of 2656	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	30
PID 1900 wrote to memory of 2656	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	30
PID 1900 wrote to memory of 2764	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	32
PID 1900 wrote to memory of 2764	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	32
PID 1900 wrote to memory of 2764	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	32
PID 1900 wrote to memory of 2764	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	32
PID 1900 wrote to memory of 2848	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	34
PID 1900 wrote to memory of 2848	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	34
PID 1900 wrote to memory of 2848	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	34
PID 1900 wrote to memory of 2848	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	34
PID 1900 wrote to memory of 2668	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	36
PID 1900 wrote to memory of 2668	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	36
PID 1900 wrote to memory of 2668	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	36
PID 1900 wrote to memory of 2668	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	36
PID 1900 wrote to memory of 2928	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	38
PID 1900 wrote to memory of 2928	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	38
PID 1900 wrote to memory of 2928	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	38
PID 1900 wrote to memory of 2928	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	38
PID 1900 wrote to memory of 2716	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	41
PID 1900 wrote to memory of 2716	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	41
PID 1900 wrote to memory of 2716	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	41
PID 1900 wrote to memory of 2716	1900	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	41
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43
PID 2724 wrote to memory of 2616	2724	disiwb.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sdehbsko\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\disiwb.exe" C:\Windows\SysWOW64\sdehbsko\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sdehbsko binPath= "C:\Windows\SysWOW64\sdehbsko\disiwb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sdehbsko "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sdehbsko
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:2716

C:\Windows\SysWOW64\sdehbsko\disiwb.exe
C:\Windows\SysWOW64\sdehbsko\disiwb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- 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:2616

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\disiwb.exe

Filesize
13.5MB

MD5
f6f8001c3fba3687027113765cffece8

SHA1
17c3bca15266cd1f270f30b62f1999105a0c08a4

SHA256
e4be2e87b2ed756a35977064414a0cca8af456016e82b2e8a033489a266c88f3

SHA512
48f6d5744a75ca14290e2f55e767c17ed7484db87e346f4100b3addcd8267ff394ed42cf738f4014f824fa468996110c343f125edac5bb5705f59aa49201e793

Download Submit
memory/1900-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/1900-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1900-1-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/1900-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1900-8-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/1900-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/1900-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2616-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2616-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2616-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2616-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2724-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads