tofsee | dfc50af3bf552bf40978db35241509f89361556235316756c134991a880b8cea

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 17:29

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General

Target

0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
Size

13.8MB
MD5

0fdbeb853aaefb2dbead07ce8458e08d
SHA1

85aba8325e2277ccf1eb6d409f96f756a61b9d3e
SHA256

dfc50af3bf552bf40978db35241509f89361556235316756c134991a880b8cea
SHA512

e1b193cd81d918af7b6772886cd6beb32b9548bc84798b3efa269040f0159d8fee4d172058995a40cf34a0659c9a89ccd4aa39c205cab844e7f2887fa1327fb2
SSDEEP

49152:lIghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhn:q

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\xkiccvcw = "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
2824	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\xkiccvcw\ImagePath = "C:\\Windows\\SysWOW64\\xkiccvcw\\nqjrprzj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2364	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	nqjrprzj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2364	2736	nqjrprzj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2720	sc.exe
2808	sc.exe
2912	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	0fdbeb853aaefb2dbead07ce8458e08d_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	nqjrprzj.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 30 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 2280	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	30
PID 1588 wrote to memory of 2280	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	30
PID 1588 wrote to memory of 2280	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	30
PID 1588 wrote to memory of 2280	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	30
PID 1588 wrote to memory of 2452	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	32
PID 1588 wrote to memory of 2452	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	32
PID 1588 wrote to memory of 2452	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	32
PID 1588 wrote to memory of 2452	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	32
PID 1588 wrote to memory of 2720	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	34
PID 1588 wrote to memory of 2720	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	34
PID 1588 wrote to memory of 2720	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	34
PID 1588 wrote to memory of 2720	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	34
PID 1588 wrote to memory of 2808	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	36
PID 1588 wrote to memory of 2808	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	36
PID 1588 wrote to memory of 2808	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	36
PID 1588 wrote to memory of 2808	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	36
PID 1588 wrote to memory of 2912	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	38
PID 1588 wrote to memory of 2912	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	38
PID 1588 wrote to memory of 2912	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	38
PID 1588 wrote to memory of 2912	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	38
PID 1588 wrote to memory of 2824	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	41
PID 1588 wrote to memory of 2824	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	41
PID 1588 wrote to memory of 2824	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	41
PID 1588 wrote to memory of 2824	1588	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	41
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43
PID 2736 wrote to memory of 2364	2736	nqjrprzj.exe	43

C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xkiccvcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nqjrprzj.exe" C:\Windows\SysWOW64\xkiccvcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xkiccvcw binPath= "C:\Windows\SysWOW64\xkiccvcw\nqjrprzj.exe /d\"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xkiccvcw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xkiccvcw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- 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:2824

C:\Windows\SysWOW64\xkiccvcw\nqjrprzj.exe
C:\Windows\SysWOW64\xkiccvcw\nqjrprzj.exe /d"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2364

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\nqjrprzj.exe

Filesize
14.7MB

MD5
a1910931dafe77ae2c2e2c0ff62e3aaa

SHA1
6d6a929d0037102baf2f45828677b829fedf6e55

SHA256
ee818e0ca8d432d302a203b97ed97d97e0b20c68b6616d9e9ed882e9a46f9d1b

SHA512
df1773d93f69ccc52eb8028d4fefa7008f2846d81f3cb4591ebf9255a48b3ddb0780c2f04f1160bce0550ffc75e6ee058f29f7f7ade3394a1f7c41e28decd8fe

Download Submit
memory/1588-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp

Filesize
1024KB

Download
memory/1588-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1588-4-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1588-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1588-9-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2364-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2364-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads