tofsee | 70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 06:16

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General

Target

JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe
Size

138KB
MD5

26b7ae3bc5b08c57a8fabd30e42e2d56
SHA1

23821aa60da21917095f294c5315f3ef7c4a3a19
SHA256

70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248
SHA512

9e890c9476feca005bc41fa84c50533a2a7af2ccef3f1a1e394b26cd02c009450a2139db3d829fa1f338f2f882d53ac1a24ff6575c5296fb1611ca3bae4e930d
SSDEEP

1536:oskF/KbaP0eEGzXLRfduoenpLbrtl2fx85W+esR55ZRjlcs9jU+x0n:3kseEGrFQnxb6f7FS55HjGs9j4

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\xbkhzffw = "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
2832	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\xbkhzffw\ImagePath = "C:\\Windows\\SysWOW64\\xbkhzffw\\pbichnai.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2656	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2240	pbichnai.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2240 set thread context of 2656	2240	pbichnai.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2752	sc.exe
2548	sc.exe
3036	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	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.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	pbichnai.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2828	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	31
PID 1940 wrote to memory of 2828	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	31
PID 1940 wrote to memory of 2828	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	31
PID 1940 wrote to memory of 2828	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	31
PID 1940 wrote to memory of 2944	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	33
PID 1940 wrote to memory of 2944	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	33
PID 1940 wrote to memory of 2944	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	33
PID 1940 wrote to memory of 2944	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	33
PID 1940 wrote to memory of 3036	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	35
PID 1940 wrote to memory of 3036	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	35
PID 1940 wrote to memory of 3036	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	35
PID 1940 wrote to memory of 3036	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	35
PID 1940 wrote to memory of 2752	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	37
PID 1940 wrote to memory of 2752	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	37
PID 1940 wrote to memory of 2752	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	37
PID 1940 wrote to memory of 2752	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	37
PID 1940 wrote to memory of 2548	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	39
PID 1940 wrote to memory of 2548	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	39
PID 1940 wrote to memory of 2548	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	39
PID 1940 wrote to memory of 2548	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	39
PID 1940 wrote to memory of 2832	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	42
PID 1940 wrote to memory of 2832	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	42
PID 1940 wrote to memory of 2832	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	42
PID 1940 wrote to memory of 2832	1940	JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe	42
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44
PID 2240 wrote to memory of 2656	2240	pbichnai.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xbkhzffw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pbichnai.exe" C:\Windows\SysWOW64\xbkhzffw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xbkhzffw binPath= "C:\Windows\SysWOW64\xbkhzffw\pbichnai.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xbkhzffw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xbkhzffw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- 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:2832

C:\Windows\SysWOW64\xbkhzffw\pbichnai.exe
C:\Windows\SysWOW64\xbkhzffw\pbichnai.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70c568476aba5ca1e604d7db73d171be61a8df792fd798a76a14c8d9e510a248.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- 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:2656

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\pbichnai.exe

Filesize
10.7MB

MD5
e6b3b8e196e37251379f2b25a8b6f450

SHA1
f6efbd1ff984910158a1515259bf909bea1f2acc

SHA256
0a0d46cb31bc525c598fbfd4a1741654bdd994fb072f36a2e590010ac9c3de03

SHA512
954ac7afdb964f44c50491da77440da97201ac22f7c2b669e6b4262e5ea0c81e89d67f61b5803d6153e7475b51a1b57d215d804fcbb69e9fa6eb7ad52249c47f

Download Submit
memory/1940-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1940-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1940-4-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1940-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1940-9-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2240-17-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2656-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads