tofsee | 206a74714825078a3db469a5df6a5c80f4ea5d0ad4f3f351a6ee61646afc88f1

Analysis

max time kernel
144s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 02:04

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General

Target

28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe
Size

11.7MB
MD5

28e64d4ff58f5f4320c74400b9a9029c
SHA1

7ccfbaa87d883b583221343afa9a42bc158739dd
SHA256

206a74714825078a3db469a5df6a5c80f4ea5d0ad4f3f351a6ee61646afc88f1
SHA512

43e1c0ff53f69295c2cba2551e1fc92be573728166d45182af4e8fee3b0c0d82490cc82c837113062452742847813b0321508465d31c9b2cc48f67688949963d
SSDEEP

98304:3QKRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRL:3

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

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\gsdoxwvd = "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
2588	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\gsdoxwvd\ImagePath = "C:\\Windows\\SysWOW64\\gsdoxwvd\\icyepzrx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	icyepzrx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2772	2568	icyepzrx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
2592	sc.exe
2736	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icyepzrx.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2952	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2952	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2952	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2952	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2672	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2672	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2672	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2672	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2604	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2604	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2604	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2604	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2592	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2592	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2592	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2592	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2736	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	38
PID 2676 wrote to memory of 2736	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	38
PID 2676 wrote to memory of 2736	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	38
PID 2676 wrote to memory of 2736	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	38
PID 2676 wrote to memory of 2588	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	41
PID 2676 wrote to memory of 2588	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	41
PID 2676 wrote to memory of 2588	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	41
PID 2676 wrote to memory of 2588	2676	28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe	41
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43
PID 2568 wrote to memory of 2772	2568	icyepzrx.exe	43

C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gsdoxwvd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\icyepzrx.exe" C:\Windows\SysWOW64\gsdoxwvd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gsdoxwvd binPath= "C:\Windows\SysWOW64\gsdoxwvd\icyepzrx.exe /d\"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gsdoxwvd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gsdoxwvd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- 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:2588

C:\Windows\SysWOW64\gsdoxwvd\icyepzrx.exe
C:\Windows\SysWOW64\gsdoxwvd\icyepzrx.exe /d"C:\Users\Admin\AppData\Local\Temp\28e64d4ff58f5f4320c74400b9a9029c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:2772

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\icyepzrx.exe

Filesize
10.6MB

MD5
5b4a2635d4d7241539a954ab38b115c6

SHA1
1009c443b5835b3a340a4972219c0e8f2244072d

SHA256
5160ad669f2b810bd203022ab194b146e12e92d2796667daaf282e2afb1d2d74

SHA512
5145aaa2e276862265cd61276035fe4746a8a998d9c933fcc7f6b347baac3ad533092ef73e861eb28228889db428023be447813ddc6ace2d7c6df896af097276

Download Submit
memory/2568-16-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/2676-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2676-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2676-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2676-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2676-8-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/2772-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads