tofsee | 61dbcf0adaa64a67b42678fbdfffac4035ef4eb947f455d6bda7dc807e4a589c

Analysis

max time kernel
154s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22/06/2024, 16:28

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General

Target
02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe
Size 10.6MB
Sample240622-tyzpmaydpl
SHA256 61dbcf0adaa64a67b42678fbdfffac4035ef4eb947f455d6bda7dc807e4a589c
MD5 02efa58022f21dab1d400e8ddc3620c4
SHA1 e805af3f400abe91974ad3a2b544a6e3b5f77b1a
SHA512 16ec166259460e33a60482212ce9cff12967add5a4fa0a5cb1ed3c0658e3627f6f9fe1990d509e48653920cd383e3d3e4ecd4d0c55778579beb626c9e8250a9e
SSDEEP 196608:d3qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqP:d
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee 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
2020	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\rajrzovl\ImagePath = "C:\\Windows\\SysWOW64\\rajrzovl\\gjhcwdnx.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4484	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	gjhcwdnx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 4484	2848	gjhcwdnx.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4924	sc.exe
4496	sc.exe
2304	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
224	2848	WerFault.exe	103
3300	2148	WerFault.exe	89

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 4780	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	90
PID 2148 wrote to memory of 4780	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	90
PID 2148 wrote to memory of 4780	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	90
PID 2148 wrote to memory of 1352	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	92
PID 2148 wrote to memory of 1352	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	92
PID 2148 wrote to memory of 1352	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	92
PID 2148 wrote to memory of 4924	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	94
PID 2148 wrote to memory of 4924	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	94
PID 2148 wrote to memory of 4924	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	94
PID 2148 wrote to memory of 4496	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	96
PID 2148 wrote to memory of 4496	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	96
PID 2148 wrote to memory of 4496	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	96
PID 2148 wrote to memory of 2304	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	98
PID 2148 wrote to memory of 2304	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	98
PID 2148 wrote to memory of 2304	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	98
PID 2148 wrote to memory of 2020	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	100
PID 2148 wrote to memory of 2020	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	100
PID 2148 wrote to memory of 2020	2148	02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe	100
PID 2848 wrote to memory of 4484	2848	gjhcwdnx.exe	105
PID 2848 wrote to memory of 4484	2848	gjhcwdnx.exe	105
PID 2848 wrote to memory of 4484	2848	gjhcwdnx.exe	105
PID 2848 wrote to memory of 4484	2848	gjhcwdnx.exe	105
PID 2848 wrote to memory of 4484	2848	gjhcwdnx.exe	105

C:\Users\Admin\AppData\Local\Temp\02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rajrzovl\
  2⤵
  PID:4780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gjhcwdnx.exe" C:\Windows\SysWOW64\rajrzovl\
  2⤵
  PID:1352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rajrzovl binPath= "C:\Windows\SysWOW64\rajrzovl\gjhcwdnx.exe /d\"C:\Users\Admin\AppData\Local\Temp\02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rajrzovl "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:4496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rajrzovl
  2⤵
  - Launches sc.exe
  PID:2304
- 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
  PID:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 1268
  2⤵
  - Program crash
  PID:3300

C:\Windows\SysWOW64\rajrzovl\gjhcwdnx.exe
C:\Windows\SysWOW64\rajrzovl\gjhcwdnx.exe /d"C:\Users\Admin\AppData\Local\Temp\02efa58022f21dab1d400e8ddc3620c4_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:4484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 516
  2⤵
  - Program crash
  PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2148 -ip 2148
1⤵
PID:860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2848 -ip 2848
1⤵
PID:4476

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 --no-appcompat-clear --mojo-platform-channel-handle=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
1⤵
PID:4868

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

gjhcwdnx.exe

Path C:\Users\Admin\AppData\Local\Temp\gjhcwdnx.exe
Size 10.5MB
SHA256 c457b2ab1465a316b6471b2946257964c27ff0619135c2f171ee0894d7567fa4
MD5 681bee07423513cbf660d3047b540cc2
SHA1 fc1847fc9bf47bbe47fa4206652d1452937e0936
SHA512 b5ce173f418246078b38a9eb484af632120777b9bdf60bc6b73ea832579a421adf31615f3f59bae359476dea7eadf56fbac10ff96b5e9471330a24752aa3a7f0
SSDEEP 196608:I3qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqy:I
MD5 SHA1 SHA512 SSDEEP

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memory/2148-20-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/2148-15-0x0000000000A00000-0x0000000000B00000-memory.dmp

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memory/2148-5-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/2148-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

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memory/2148-9-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/2148-19-0x00000000001D0000-0x00000000001E3000-memory.dmp

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memory/2148-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/2148-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

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memory/2848-17-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/2848-11-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/2848-10-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/4484-12-0x0000000001030000-0x0000000001045000-memory.dmp

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memory/4484-16-0x0000000001030000-0x0000000001045000-memory.dmp

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memory/4484-21-0x0000000001030000-0x0000000001045000-memory.dmp

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memory/4484-22-0x0000000001030000-0x0000000001045000-memory.dmp

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memory/4484-23-0x0000000001030000-0x0000000001045000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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