tofsee | 4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 13:54

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General

Target

JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe
Size

306KB
MD5

50fadce28851aab25ceadb4d54453426
SHA1

4f7b3c131c44efc365029007a32bd470fb5348f1
SHA256

4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de
SHA512

d7d287e9bc89675695fcf8bf8e5c50e0261f1612df0d246232df1fb54a54b3e9a4460ba50cdf9ef592d5a84614042480e1efd19503422e3ffc143abf35f5a550
SSDEEP

6144:Uhd3vPPjpZIcFjIavb49lUW6WBVJFGMXBqJ:c3vPPjpZfFw9l2wVDGg

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\gjczro = "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
2964	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\gjczro\ImagePath = "C:\\Windows\\SysWOW64\\gjczro\\iubvagtb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2940	iubvagtb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2940 set thread context of 2880	2940	iubvagtb.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2124	sc.exe
580	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iubvagtb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2396	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	30
PID 1956 wrote to memory of 2396	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	30
PID 1956 wrote to memory of 2396	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	30
PID 1956 wrote to memory of 2396	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	30
PID 1956 wrote to memory of 2356	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	32
PID 1956 wrote to memory of 2356	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	32
PID 1956 wrote to memory of 2356	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	32
PID 1956 wrote to memory of 2356	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	32
PID 1956 wrote to memory of 2124	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	34
PID 1956 wrote to memory of 2124	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	34
PID 1956 wrote to memory of 2124	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	34
PID 1956 wrote to memory of 2124	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	34
PID 1956 wrote to memory of 580	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	36
PID 1956 wrote to memory of 580	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	36
PID 1956 wrote to memory of 580	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	36
PID 1956 wrote to memory of 580	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	36
PID 1956 wrote to memory of 2836	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	38
PID 1956 wrote to memory of 2836	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	38
PID 1956 wrote to memory of 2836	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	38
PID 1956 wrote to memory of 2836	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	38
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	41
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	41
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	41
PID 1956 wrote to memory of 2964	1956	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	41
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44
PID 2940 wrote to memory of 2880	2940	iubvagtb.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gjczro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iubvagtb.exe" C:\Windows\SysWOW64\gjczro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gjczro binPath= "C:\Windows\SysWOW64\gjczro\iubvagtb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gjczro "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gjczro
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2964

C:\Windows\SysWOW64\gjczro\iubvagtb.exe
C:\Windows\SysWOW64\gjczro\iubvagtb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- 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:2880

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\iubvagtb.exe

Filesize
13.2MB

MD5
83f50f63ee76cbf5b434ff22817df8e6

SHA1
d1c711ca07d2a1996d95f254942c552de6376059

SHA256
dde005abcb33a866aab989bbc1314ea071f4561221483e71374d7139b8b61060

SHA512
0de61d881c5aae8909efdcfe014deecd071654927d2f17301994ea0fa14ecae1a0c7715dbed73fd07e1110f00e8fc8014f4e4e116d580b4711c882d50c9be68c

Download Submit
memory/1956-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/1956-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1956-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1956-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/1956-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2880-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-16-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads