tofsee | 85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 15:12

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General

Target

JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe
Size

220KB
MD5

472f3c93a3a556b6d411fc8545f499a2
SHA1

0b3c535e3a9eb288cc6d1f288b81b10528e62515
SHA256

85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895
SHA512

7aaf7f56bb3d9f177f01d83662ddc915405c175403466fe854d6cbc81f825f9a26c724d07f308f6ae2f288bd75840024a8065306167c1d178ba8edb3e96809df
SSDEEP

3072:jQ2Bp+bjYIVbAEz26obfSW2HDy5LZUJ98Wrxpzbgqru+sxkgaBChaz1Y:sQ+PYMby7S/Qq6uzbgwu7igaT

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\nuljamsg = "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
2884	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\nuljamsg\ImagePath = "C:\\Windows\\SysWOW64\\nuljamsg\\jfuuzgmd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2800	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	jfuuzgmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2800	2776	jfuuzgmd.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2872	sc.exe
2864	sc.exe
2916	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jfuuzgmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2896	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	29
PID 3000 wrote to memory of 2896	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	29
PID 3000 wrote to memory of 2896	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	29
PID 3000 wrote to memory of 2896	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	29
PID 3000 wrote to memory of 2980	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	31
PID 3000 wrote to memory of 2980	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	31
PID 3000 wrote to memory of 2980	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	31
PID 3000 wrote to memory of 2980	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	31
PID 3000 wrote to memory of 2872	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	33
PID 3000 wrote to memory of 2872	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	33
PID 3000 wrote to memory of 2872	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	33
PID 3000 wrote to memory of 2872	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	33
PID 3000 wrote to memory of 2864	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	35
PID 3000 wrote to memory of 2864	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	35
PID 3000 wrote to memory of 2864	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	35
PID 3000 wrote to memory of 2864	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	35
PID 3000 wrote to memory of 2916	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	37
PID 3000 wrote to memory of 2916	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	37
PID 3000 wrote to memory of 2916	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	37
PID 3000 wrote to memory of 2916	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	37
PID 3000 wrote to memory of 2884	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	40
PID 3000 wrote to memory of 2884	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	40
PID 3000 wrote to memory of 2884	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	40
PID 3000 wrote to memory of 2884	3000	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	40
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42
PID 2776 wrote to memory of 2800	2776	jfuuzgmd.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nuljamsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jfuuzgmd.exe" C:\Windows\SysWOW64\nuljamsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nuljamsg binPath= "C:\Windows\SysWOW64\nuljamsg\jfuuzgmd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nuljamsg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nuljamsg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- 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:2884

C:\Windows\SysWOW64\nuljamsg\jfuuzgmd.exe
C:\Windows\SysWOW64\nuljamsg\jfuuzgmd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2800

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\jfuuzgmd.exe

Filesize
10.7MB

MD5
2d175fd3cf597eb06a67f1f15c3b63b6

SHA1
1c27b91c348cfc318fa307745a3378bf220def67

SHA256
352ba2f23d7610ae7c06a8e2fb69bfeeee46aae034860e222446267a061269eb

SHA512
17081d7c4f1683c7ddce0485ce3bcdd52e955d7e8bcfcf9fed6ad3e6cca238d57f7baa3d2e03d4222db09ad1942b74d9fff2e57cd5ff34598a772029a3b50c76

Download Submit
memory/2776-16-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2800-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-8-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/3000-7-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/3000-6-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/3000-0-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/3000-1-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads