tofsee | 83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 11:29

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General

Target

JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe
Size

184KB
MD5

3053973d0d187f27f6154532ea00ee17
SHA1

c15d2971bed0e89f52193e09a94971d455d757cf
SHA256

83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef
SHA512

eb5058b97a67b2b2ddd1f36e25d9f3a67e5115dab0ea520ab574261a12feab6541a38ec63ee7e9b0ef38e9f6a68677573fe4e690443ddb7230b8ac039d69d504
SSDEEP

3072:7SmyTMOQe1NOvLqfbsjUivt2QejgkNXSfMtcaJK3jPZPw8XehgC:7UTMHeajUQKBNXSkWaITP7m

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
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\xzifopuo = "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
2756	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\xzifopuo\ImagePath = "C:\\Windows\\SysWOW64\\xzifopuo\\cwfpcfkw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2512	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2392	cwfpcfkw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2392 set thread context of 2512	2392	cwfpcfkw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2368	sc.exe
2344	sc.exe
1900	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	cmd.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	cwfpcfkw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2452	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	30
PID 3052 wrote to memory of 2452	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	30
PID 3052 wrote to memory of 2452	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	30
PID 3052 wrote to memory of 2452	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	30
PID 3052 wrote to memory of 2332	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	32
PID 3052 wrote to memory of 2332	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	32
PID 3052 wrote to memory of 2332	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	32
PID 3052 wrote to memory of 2332	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	32
PID 3052 wrote to memory of 2344	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	34
PID 3052 wrote to memory of 2344	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	34
PID 3052 wrote to memory of 2344	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	34
PID 3052 wrote to memory of 2344	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	34
PID 3052 wrote to memory of 1900	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	36
PID 3052 wrote to memory of 1900	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	36
PID 3052 wrote to memory of 1900	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	36
PID 3052 wrote to memory of 1900	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	36
PID 3052 wrote to memory of 2368	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	38
PID 3052 wrote to memory of 2368	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	38
PID 3052 wrote to memory of 2368	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	38
PID 3052 wrote to memory of 2368	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	38
PID 3052 wrote to memory of 2756	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	41
PID 3052 wrote to memory of 2756	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	41
PID 3052 wrote to memory of 2756	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	41
PID 3052 wrote to memory of 2756	3052	JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe	41
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43
PID 2392 wrote to memory of 2512	2392	cwfpcfkw.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xzifopuo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cwfpcfkw.exe" C:\Windows\SysWOW64\xzifopuo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xzifopuo binPath= "C:\Windows\SysWOW64\xzifopuo\cwfpcfkw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xzifopuo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xzifopuo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2368
- 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:2756

C:\Windows\SysWOW64\xzifopuo\cwfpcfkw.exe
C:\Windows\SysWOW64\xzifopuo\cwfpcfkw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83f38a0bf26c992a4f4afe92229bbb7e77f80748c881d0ba39a3e1648483e6ef.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- 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:2512

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\cwfpcfkw.exe

Filesize
12.0MB

MD5
a17f78d3993dbd8486b68b6fecbe95b4

SHA1
70285d599eaaf192f3b820e69a0d9bf1998cdad6

SHA256
7afc91cbec6b2f42e0d05837f35e02211509da92389d034d38302c2f91a67fac

SHA512
882f865f02d6c50192afade50d480595e1487035e9f92a7a4de1d7ad86a8c86a4951d357480f5b1c3e68e1a688afee16e215728b637cb7cba16fba9389ba9176

Download Submit
memory/2392-15-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2512-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/3052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3052-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3052-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads