tofsee | 0f5925ce372f42751218138d657177d1af0c08547b62a361a235ca16b82ba586

Analysis

max time kernel
144s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 13:58

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General

Target
cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe
Size 12.7MB
Sample241206-q96erswpgr
SHA256 0f5925ce372f42751218138d657177d1af0c08547b62a361a235ca16b82ba586
MD5 cd5c610b70c17b78c91f0cc625b09f31
SHA1 681324c2ab69d935cf2e6daca83811a4fbc92793
SHA512 dd29fc33436150c30d5c9b1467e300ac3fec1cfcf19874d38b2c873704646232a6b3a354f8eb3c9276930bcca34da385d67b545bf852c65825548b5c770bc18d
SSDEEP 98304:999999999999999999999999999999999999999999999999999999999999999d:
MD5 SHA1 SHA512 SSDEEP

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
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
2468	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\wxumdmt\ImagePath = "C:\\Windows\\SysWOW64\\wxumdmt\\jhokjsqh.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	jhokjsqh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2864 set thread context of 1816	2864	jhokjsqh.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
812	sc.exe
184	sc.exe
3900	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	jhokjsqh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 1624	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	83
PID 4480 wrote to memory of 1624	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	83
PID 4480 wrote to memory of 1624	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	83
PID 4480 wrote to memory of 5096	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	85
PID 4480 wrote to memory of 5096	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	85
PID 4480 wrote to memory of 5096	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	85
PID 4480 wrote to memory of 812	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	87
PID 4480 wrote to memory of 812	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	87
PID 4480 wrote to memory of 812	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	87
PID 4480 wrote to memory of 184	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	89
PID 4480 wrote to memory of 184	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	89
PID 4480 wrote to memory of 184	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	89
PID 4480 wrote to memory of 3900	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	91
PID 4480 wrote to memory of 3900	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	91
PID 4480 wrote to memory of 3900	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	91
PID 4480 wrote to memory of 2468	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	96
PID 4480 wrote to memory of 2468	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	96
PID 4480 wrote to memory of 2468	4480	cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe	96
PID 2864 wrote to memory of 1816	2864	jhokjsqh.exe	95
PID 2864 wrote to memory of 1816	2864	jhokjsqh.exe	95
PID 2864 wrote to memory of 1816	2864	jhokjsqh.exe	95
PID 2864 wrote to memory of 1816	2864	jhokjsqh.exe	95
PID 2864 wrote to memory of 1816	2864	jhokjsqh.exe	95

C:\Users\Admin\AppData\Local\Temp\cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wxumdmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jhokjsqh.exe" C:\Windows\SysWOW64\wxumdmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wxumdmt binPath= "C:\Windows\SysWOW64\wxumdmt\jhokjsqh.exe /d\"C:\Users\Admin\AppData\Local\Temp\cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wxumdmt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wxumdmt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3900
- 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:2468

C:\Windows\SysWOW64\wxumdmt\jhokjsqh.exe
C:\Windows\SysWOW64\wxumdmt\jhokjsqh.exe /d"C:\Users\Admin\AppData\Local\Temp\cd5c610b70c17b78c91f0cc625b09f31_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1816

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

jhokjsqh.exe

Path C:\Users\Admin\AppData\Local\Temp\jhokjsqh.exe
Size 14.8MB
SHA256 5550d1948cc956efd78a6f17ad4e9e548d55c9f27ad23606396c351d87fc772d
MD5 7f1cf43ff5a5b362d964f8882c32382f
SHA1 e83dc8371447e87617d434a698e3da1230207602
SHA512 5b783bed48afbbf71a9cd93c6733d548bd9be562c6748cb8120adc3fabe5ed1d9ddad28c6fe39f9289434c2777bc872b8a7f967382b55922e23e8f0d6157c54d
SSDEEP 98304:f99999999999999999999999999999999999999999999999999999999999999d:
MD5 SHA1 SHA512 SSDEEP

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memory/1816-22-0x0000000000D60000-0x0000000000D75000-memory.dmp

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memory/1816-21-0x0000000000D60000-0x0000000000D75000-memory.dmp

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memory/1816-10-0x0000000000D60000-0x0000000000D75000-memory.dmp

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memory/1816-16-0x0000000000D60000-0x0000000000D75000-memory.dmp

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memory/1816-20-0x0000000000D60000-0x0000000000D75000-memory.dmp

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memory/2864-19-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/2864-9-0x0000000000470000-0x0000000000471000-memory.dmp

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memory/2864-7-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4480-2-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4480-15-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4480-13-0x000000005F000000-0x000000005F011000-memory.dmp

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memory/4480-0-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4480-3-0x00000000004C0000-0x00000000004C1000-memory.dmp

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memory/4480-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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