tofsee | 721e647c410d5b1a11fa7f0cf738fd5ebae93e22a3603ef717534eb127534b77

Analysis

max time kernel
145s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 02:38

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General

Target
15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe
Size 239KB
Sample241005-c4t8navdpg
SHA256 721e647c410d5b1a11fa7f0cf738fd5ebae93e22a3603ef717534eb127534b77
MD5 15d4d4bc8ed67fa74d66fe6916c31b90
SHA1 60822f14ffc83bf592cf8680d7ee76e132288811
SHA512 d66c56e07838c4d87f5bcf728cf4780bcc5d9cc509e40816d7518760f97ebe7394935a9fe7eba5b30e2d3ae201b07cdd26491c75ac798ed5fd74fe72ce0470f7
SSDEEP 6144:fesoFeYHECHsLsx6mihb12P5qpWV0m68jM7LjmpeM:fnu/HECz6S5QWlnqOpe
MD5 SHA1 SHA512 SSDEEP

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
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
4968	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\lsafqrxe\ImagePath = "C:\\Windows\\SysWOW64\\lsafqrxe\\mtfsbopj.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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5084	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1500	mtfsbopj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1500 set thread context of 5084	1500	mtfsbopj.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3516	sc.exe
1228	sc.exe
3192	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3340	5872	WerFault.exe	88
1532	1500	WerFault.exe	99

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtfsbopj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15d4d4bc8ed67fa74d66fe6916c31b90_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5872 wrote to memory of 5636	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	89
PID 5872 wrote to memory of 5636	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	89
PID 5872 wrote to memory of 5636	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	89
PID 5872 wrote to memory of 1520	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	91
PID 5872 wrote to memory of 1520	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	91
PID 5872 wrote to memory of 1520	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	91
PID 5872 wrote to memory of 1228	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	93
PID 5872 wrote to memory of 1228	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	93
PID 5872 wrote to memory of 1228	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	93
PID 5872 wrote to memory of 3192	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	95
PID 5872 wrote to memory of 3192	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	95
PID 5872 wrote to memory of 3192	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	95
PID 5872 wrote to memory of 3516	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	97
PID 5872 wrote to memory of 3516	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	97
PID 5872 wrote to memory of 3516	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	97
PID 5872 wrote to memory of 4968	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	100
PID 5872 wrote to memory of 4968	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	100
PID 5872 wrote to memory of 4968	5872	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	100
PID 1500 wrote to memory of 5084	1500	mtfsbopj.exe	105
PID 1500 wrote to memory of 5084	1500	mtfsbopj.exe	105
PID 1500 wrote to memory of 5084	1500	mtfsbopj.exe	105
PID 1500 wrote to memory of 5084	1500	mtfsbopj.exe	105
PID 1500 wrote to memory of 5084	1500	mtfsbopj.exe	105

C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lsafqrxe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mtfsbopj.exe" C:\Windows\SysWOW64\lsafqrxe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lsafqrxe binPath= "C:\Windows\SysWOW64\lsafqrxe\mtfsbopj.exe /d\"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lsafqrxe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lsafqrxe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3516
- 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:4968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5872 -s 1036
  2⤵
  - Program crash
  PID:3340

C:\Windows\SysWOW64\lsafqrxe\mtfsbopj.exe
C:\Windows\SysWOW64\lsafqrxe\mtfsbopj.exe /d"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 512
  2⤵
  - Program crash
  PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5872 -ip 5872
1⤵
PID:5788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1500 -ip 1500
1⤵
PID:5804

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4768,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
1⤵
PID:5612

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

mtfsbopj.exe

Path C:\Users\Admin\AppData\Local\Temp\mtfsbopj.exe
Size 14.1MB
SHA256 cdf218cdacfed774ef947149fca216072b4ea0a602724daef99513e87ae8433f
MD5 bae377ae71892af78d6a9325421d5a55
SHA1 68f6192c5fb5a0043e3b223a0ae44aaf502e3112
SHA512 d94b7be031e034dd7efbd1c0ccf8e7ebcf975b6c67061e6b834731d987553a273bae2251e537ad49d25abd5b28d26ff34bd719cc61b3b43ddf2a4ce00a4926fe
SSDEEP 6144:VesoFeYHECHsLsx6mihb12P5qpWV0m68jM7LjmpeM:Vnu/HECz6S5QWlnqOpe
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1500-14-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/1500-15-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/5084-11-0x0000000000B70000-0x0000000000B85000-memory.dmp

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memory/5084-13-0x0000000000B70000-0x0000000000B85000-memory.dmp

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memory/5084-16-0x0000000000B70000-0x0000000000B85000-memory.dmp

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memory/5872-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

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memory/5872-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/5872-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/5872-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/5872-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/5872-8-0x0000000000400000-0x000000000086B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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