tofsee | 8cd84dc12851b50d99f1c1d389b3a67dea5879abb6a64c58f89644d6384202ac

Analysis

max time kernel
148s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-10-2024 05:04

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General

Target

69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe
Size

12.3MB
MD5

69071a916163e2ed6f4aae9e3438c917
SHA1

0f944af914e5b4a96ee95b39993c71fd24861ff7
SHA256

8cd84dc12851b50d99f1c1d389b3a67dea5879abb6a64c58f89644d6384202ac
SHA512

6b586a81be7fa9cf39e66a54d7cdb19af1dea34533197f06f52315bfa64cd64c6ebcabfa38381a6a3a098e2c922e7f2fb7c77e8253179a5a77b52928e2a64582
SSDEEP

49152:Q8yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyj:Q

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

lazystax.ru

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\rmptwzlj = "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
2792	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\rmptwzlj\ImagePath = "C:\\Windows\\SysWOW64\\rmptwzlj\\jjksytvh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1272	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	jjksytvh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 1272	2668	jjksytvh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2672	sc.exe
2800	sc.exe
2692	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.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	jjksytvh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2704	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2708	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2708	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2708	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2708	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2672	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2672	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2672	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2672	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2800	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	36
PID 2648 wrote to memory of 2800	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	36
PID 2648 wrote to memory of 2800	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	36
PID 2648 wrote to memory of 2800	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	36
PID 2648 wrote to memory of 2692	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	38
PID 2648 wrote to memory of 2692	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	38
PID 2648 wrote to memory of 2692	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	38
PID 2648 wrote to memory of 2692	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	38
PID 2648 wrote to memory of 2792	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	41
PID 2648 wrote to memory of 2792	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	41
PID 2648 wrote to memory of 2792	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	41
PID 2648 wrote to memory of 2792	2648	69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe	41
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43
PID 2668 wrote to memory of 1272	2668	jjksytvh.exe	43

C:\Users\Admin\AppData\Local\Temp\69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rmptwzlj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jjksytvh.exe" C:\Windows\SysWOW64\rmptwzlj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rmptwzlj binPath= "C:\Windows\SysWOW64\rmptwzlj\jjksytvh.exe /d\"C:\Users\Admin\AppData\Local\Temp\69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rmptwzlj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rmptwzlj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- 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:2792

C:\Windows\SysWOW64\rmptwzlj\jjksytvh.exe
C:\Windows\SysWOW64\rmptwzlj\jjksytvh.exe /d"C:\Users\Admin\AppData\Local\Temp\69071a916163e2ed6f4aae9e3438c917_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- 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:1272

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\jjksytvh.exe

Filesize
14.7MB

MD5
0654500f5be977df46d97762a1e096b2

SHA1
413b4ed8cca857b1a5d14414dd2039d38bed34ef

SHA256
0109b9d05c4c1b0003339ab94ab1ff59fe691d8cceeb0659af34b84d0f128fe6

SHA512
b849e5b5f61559cbc350a7e3b4648b83fc69f0e87b22c6001958c1bbda86a3f8e569e9f0627ac7d8485577ef2e5783f7c3f1622e6c82c811e11612e802c5cf52

Download Submit
memory/1272-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1272-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1272-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1272-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1272-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2648-10-0x0000000000A90000-0x0000000000B90000-memory.dmp

Filesize
1024KB

Download
memory/2648-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2648-7-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2648-1-0x0000000000A90000-0x0000000000B90000-memory.dmp

Filesize
1024KB

Download
memory/2668-17-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads