tofsee | c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/12/2024, 19:21

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General

Target

JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe
Size

153KB
MD5

e66556350a01070b7cdcf02158068c09
SHA1

06f2936fd94679429f0c06e8d68afe35b7657a4d
SHA256

c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff
SHA512

4fc759451f985d12205061bf7722ac4591a4c06465eaeca80a495697cde062010384e073654396d941402f812e3319fd7b67138cab0a3af1965012d8f88f92b6
SSDEEP

3072:oFamdpelo9jsA3JEE5On95MKwYY7M40O:oFldqa/3aEjKVMM3O

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\zsjwamht = "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
2248	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\zsjwamht\ImagePath = "C:\\Windows\\SysWOW64\\zsjwamht\\krpafaoc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1296	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2628	krpafaoc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 1296	2628	krpafaoc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2652	sc.exe
2760	sc.exe
2568	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	krpafaoc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2764	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	30
PID 2756 wrote to memory of 2764	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	30
PID 2756 wrote to memory of 2764	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	30
PID 2756 wrote to memory of 2764	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	30
PID 2756 wrote to memory of 2808	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	32
PID 2756 wrote to memory of 2808	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	32
PID 2756 wrote to memory of 2808	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	32
PID 2756 wrote to memory of 2808	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	32
PID 2756 wrote to memory of 2652	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	34
PID 2756 wrote to memory of 2652	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	34
PID 2756 wrote to memory of 2652	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	34
PID 2756 wrote to memory of 2652	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	34
PID 2756 wrote to memory of 2760	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	36
PID 2756 wrote to memory of 2760	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	36
PID 2756 wrote to memory of 2760	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	36
PID 2756 wrote to memory of 2760	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	36
PID 2756 wrote to memory of 2568	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	38
PID 2756 wrote to memory of 2568	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	38
PID 2756 wrote to memory of 2568	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	38
PID 2756 wrote to memory of 2568	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	38
PID 2756 wrote to memory of 2248	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	41
PID 2756 wrote to memory of 2248	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	41
PID 2756 wrote to memory of 2248	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	41
PID 2756 wrote to memory of 2248	2756	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	41
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43
PID 2628 wrote to memory of 1296	2628	krpafaoc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zsjwamht\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\krpafaoc.exe" C:\Windows\SysWOW64\zsjwamht\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zsjwamht binPath= "C:\Windows\SysWOW64\zsjwamht\krpafaoc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zsjwamht "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zsjwamht
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2568
- 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:2248

C:\Windows\SysWOW64\zsjwamht\krpafaoc.exe
C:\Windows\SysWOW64\zsjwamht\krpafaoc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- 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:1296

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\krpafaoc.exe

Filesize
13.5MB

MD5
4b9ebd202c63946b5297f82703ceaee5

SHA1
48737b58cc695ba021026642072c5bc6b2821562

SHA256
2b26afb053e86d28d759535ed08702b29970d6cb94a6f04ae6e688c2223bf9a8

SHA512
8ee2a1a9a5a625a91c75f3859ca4065051236596a49b6443c128064c0a2b8f630b1841eae4fc89c4a7290ad5a13ea93a037c675fcd1d320cbc2bbfd3613c574b

Download Submit
memory/1296-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1296-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1296-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1296-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1296-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2628-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2756-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2756-3-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2756-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-9-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2756-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads