tofsee | 26a32c9e6d4556f1125710008c3702b6a51b8ce0419af21cd3a405673670f38e

Analysis

max time kernel
148s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 05:53

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General

Target

46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe
Size

14.6MB
MD5

46272a7c3e82453b849b604d502931b6
SHA1

d43ab2e01219f1b6b79b5c9e83a12b093a891e72
SHA256

26a32c9e6d4556f1125710008c3702b6a51b8ce0419af21cd3a405673670f38e
SHA512

91f62a9552002777652249b5454b551aa064b703104b1e4239a7a3713de2b1d8a8ad1e9a2ecf22c0507f74c4f2f11dbeb1da2421456c0e63b4aebf5f83b7b48a
SSDEEP

49152:acUGb2222222222222222222222222222222222222222222222222222222222O:acU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

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\wrhhgktt = "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
2672	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\wrhhgktt\ImagePath = "C:\\Windows\\SysWOW64\\wrhhgktt\\hdvvshgu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2152	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1688	hdvvshgu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1688 set thread context of 2152	1688	hdvvshgu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2868	sc.exe
1896	sc.exe
2832	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	hdvvshgu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2908	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	30
PID 2476 wrote to memory of 2908	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	30
PID 2476 wrote to memory of 2908	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	30
PID 2476 wrote to memory of 2908	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	32
PID 2476 wrote to memory of 1868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	32
PID 2476 wrote to memory of 1868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	32
PID 2476 wrote to memory of 1868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	32
PID 2476 wrote to memory of 2868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	34
PID 2476 wrote to memory of 2868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	34
PID 2476 wrote to memory of 2868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	34
PID 2476 wrote to memory of 2868	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	34
PID 2476 wrote to memory of 1896	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	36
PID 2476 wrote to memory of 1896	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	36
PID 2476 wrote to memory of 1896	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	36
PID 2476 wrote to memory of 1896	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	36
PID 2476 wrote to memory of 2832	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	38
PID 2476 wrote to memory of 2832	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	38
PID 2476 wrote to memory of 2832	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	38
PID 2476 wrote to memory of 2832	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	38
PID 2476 wrote to memory of 2672	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	40
PID 2476 wrote to memory of 2672	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	40
PID 2476 wrote to memory of 2672	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	40
PID 2476 wrote to memory of 2672	2476	46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe	40
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43
PID 1688 wrote to memory of 2152	1688	hdvvshgu.exe	43

C:\Users\Admin\AppData\Local\Temp\46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wrhhgktt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hdvvshgu.exe" C:\Windows\SysWOW64\wrhhgktt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wrhhgktt binPath= "C:\Windows\SysWOW64\wrhhgktt\hdvvshgu.exe /d\"C:\Users\Admin\AppData\Local\Temp\46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wrhhgktt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wrhhgktt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2672

C:\Windows\SysWOW64\wrhhgktt\hdvvshgu.exe
C:\Windows\SysWOW64\wrhhgktt\hdvvshgu.exe /d"C:\Users\Admin\AppData\Local\Temp\46272a7c3e82453b849b604d502931b6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- 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:2152

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\hdvvshgu.exe

Filesize
12.3MB

MD5
a48213a5545d4eb786b88419da247ea2

SHA1
b87a399ecb78b8961d68300cbb36fb42742024dd

SHA256
08e4f2ed9eb1d6f88483fb2271bafb0b46fa9a83af6cb516e4b7689456eeb9a2

SHA512
29411ef43a6b8c48d2a19a3036525e4781ff1fc77dc6f18ad17382873264f3830e4c59da16bee981cf3550e6f834be6216a4be91e843c1b12a1ec03d0c8630d7

Download Submit
memory/1688-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2152-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2152-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2152-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2152-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2152-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2476-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2476-6-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2476-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2476-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads