tofsee | babdbb236a46ff8da0ad397d0ce4657ce9f36179b4a32d47824099245c0d32cc

Analysis

max time kernel
148s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 19:48

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General

Target

592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe
Size

14.6MB
MD5

592365bb3ca24f3aae7c675640de3b38
SHA1

0d0042360b1ea1ac5d4868e370220264b84393b3
SHA256

babdbb236a46ff8da0ad397d0ce4657ce9f36179b4a32d47824099245c0d32cc
SHA512

23e016c84537a039e8fd1388ab25933169e2a18c9728460379d2fe2f74ea3a6b7f714a5f65bc049ed1b8af638a66fd0dc9df3f42e01660e8416707282da9a975
SSDEEP

6144:6tSUszifRNkttttttttttttttttttttttttttttttttttttttttttttttttttttL:oS0f7

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\unjvcdml = "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
2692	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\unjvcdml\ImagePath = "C:\\Windows\\SysWOW64\\unjvcdml\\udvudptk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2152	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1912	udvudptk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1912 set thread context of 2152	1912	udvudptk.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
560	sc.exe
3032	sc.exe
1492	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	592365bb3ca24f3aae7c675640de3b38_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	udvudptk.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2940	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	30
PID 2804 wrote to memory of 2940	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	30
PID 2804 wrote to memory of 2940	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	30
PID 2804 wrote to memory of 2940	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	30
PID 2804 wrote to memory of 2668	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	32
PID 2804 wrote to memory of 2668	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	32
PID 2804 wrote to memory of 2668	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	32
PID 2804 wrote to memory of 2668	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	32
PID 2804 wrote to memory of 3032	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	34
PID 2804 wrote to memory of 3032	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	34
PID 2804 wrote to memory of 3032	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	34
PID 2804 wrote to memory of 3032	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	34
PID 2804 wrote to memory of 1492	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	36
PID 2804 wrote to memory of 1492	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	36
PID 2804 wrote to memory of 1492	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	36
PID 2804 wrote to memory of 1492	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	36
PID 2804 wrote to memory of 560	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	38
PID 2804 wrote to memory of 560	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	38
PID 2804 wrote to memory of 560	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	38
PID 2804 wrote to memory of 560	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	38
PID 2804 wrote to memory of 2692	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	40
PID 2804 wrote to memory of 2692	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	40
PID 2804 wrote to memory of 2692	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	40
PID 2804 wrote to memory of 2692	2804	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	40
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43
PID 1912 wrote to memory of 2152	1912	udvudptk.exe	43

C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\unjvcdml\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\udvudptk.exe" C:\Windows\SysWOW64\unjvcdml\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create unjvcdml binPath= "C:\Windows\SysWOW64\unjvcdml\udvudptk.exe /d\"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description unjvcdml "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start unjvcdml
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:560
- 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:2692

C:\Windows\SysWOW64\unjvcdml\udvudptk.exe
C:\Windows\SysWOW64\unjvcdml\udvudptk.exe /d"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1912
- 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\udvudptk.exe

Filesize
14.4MB

MD5
3606a59afab04828616aabadf6695fb0

SHA1
cdd3ac0bd11ade32727025efdc31342b4dbee570

SHA256
27da01c16abc4495537d6844aa228edacbf981bf55128f13fb7ad4147b27d428

SHA512
9f179c32590a8bfd36731f57a62d214bbd2fa9b99631b5af9e37cafbd7d229452d08f3edc19739aa166c9df2b4022ae1398dc7bbf3029841fa0c6e2c56bf1d20

Download Submit
memory/1912-7-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1912-12-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2152-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2152-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2152-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2152-8-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2152-15-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2804-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2804-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2804-2-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2804-5-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads