tofsee | 6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 00:52

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General

Target

JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe
Size

136KB
MD5

a1746af01bdd96219bdfc0a44b5825b1
SHA1

82fdd3deb8414b3fd0c5c01a16d8a84488e21c2d
SHA256

6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d
SHA512

976ab91a304d4cbe65676b545281758414f0e042ee4fffa124100d11683a0acec6630df81286c1c9578f0dda78af6a96bb782f6c1b5fea79444ad99423e7ddd4
SSDEEP

3072:0aDZxXySmDW/dHWHNHm3aDWD57ulk9mY5:0aFxCRuHWZmNs

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\jrfieovb = "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
2656	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\jrfieovb\ImagePath = "C:\\Windows\\SysWOW64\\jrfieovb\\kavhbnrj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	kavhbnrj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2852	2736	kavhbnrj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2624	sc.exe
2144	sc.exe
2756	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kavhbnrj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1052	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	31
PID 548 wrote to memory of 1052	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	31
PID 548 wrote to memory of 1052	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	31
PID 548 wrote to memory of 1052	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	31
PID 548 wrote to memory of 2004	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	33
PID 548 wrote to memory of 2004	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	33
PID 548 wrote to memory of 2004	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	33
PID 548 wrote to memory of 2004	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	33
PID 548 wrote to memory of 2624	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	35
PID 548 wrote to memory of 2624	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	35
PID 548 wrote to memory of 2624	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	35
PID 548 wrote to memory of 2624	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	35
PID 548 wrote to memory of 2144	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	37
PID 548 wrote to memory of 2144	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	37
PID 548 wrote to memory of 2144	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	37
PID 548 wrote to memory of 2144	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	37
PID 548 wrote to memory of 2756	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	39
PID 548 wrote to memory of 2756	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	39
PID 548 wrote to memory of 2756	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	39
PID 548 wrote to memory of 2756	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	39
PID 548 wrote to memory of 2656	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	42
PID 548 wrote to memory of 2656	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	42
PID 548 wrote to memory of 2656	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	42
PID 548 wrote to memory of 2656	548	JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe	42
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44
PID 2736 wrote to memory of 2852	2736	kavhbnrj.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jrfieovb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kavhbnrj.exe" C:\Windows\SysWOW64\jrfieovb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jrfieovb binPath= "C:\Windows\SysWOW64\jrfieovb\kavhbnrj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jrfieovb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jrfieovb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- 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:2656

C:\Windows\SysWOW64\jrfieovb\kavhbnrj.exe
C:\Windows\SysWOW64\jrfieovb\kavhbnrj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ceb9a72d32552da5885593938dca574bf043d6f39ee5443e2803dfcfae5f18d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2852

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\kavhbnrj.exe

Filesize
11.2MB

MD5
709723b71144d238f4fca340665abcea

SHA1
bfad52d9d153bb4a2b2252af40069bfdcde9e97b

SHA256
2899192afe3c5951ca46bed0223061a85f7c38962fa40763fbd77bc904e0096c

SHA512
af17b7596bd30b7f7c00619393c0b676d33bc1d6dfa2d9b564f26b0959fd1a858bad5e718c4a619d27f30e4ed8ceec69c362e997b6daf9aae7e482851352d972

Download Submit
memory/548-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/548-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/548-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/548-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2736-15-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2852-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads