tofsee | cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:29

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General

Target

JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe
Size

165KB
MD5

5bfc66916649ba29afc08d2d65bfea85
SHA1

afebdb26e4ea69ef8764732614c37e290265d6ec
SHA256

cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827
SHA512

b7fc3afff4aec0aed51ade3d204b674d7b4c014e75959ee7f15624c0a96b2bee0317424fd246779f7fa9f2523dd7c8e467509b138a83f83b46c2a55c0271e40d
SSDEEP

3072:oHecR8524ftXuGBT+7q+scZI6tJ4ZE8AqkhaP/bL1x2:9cR024lXu8afsV6teuWkYXbLS

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\eomqsvrv = "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
2228	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\eomqsvrv\ImagePath = "C:\\Windows\\SysWOW64\\eomqsvrv\\bqrxkvpo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2956	bqrxkvpo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 2716	2956	bqrxkvpo.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2408	sc.exe
1372	sc.exe
2796	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	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	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bqrxkvpo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 2116	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	29
PID 108 wrote to memory of 2116	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	29
PID 108 wrote to memory of 2116	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	29
PID 108 wrote to memory of 2116	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	29
PID 108 wrote to memory of 3064	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	31
PID 108 wrote to memory of 3064	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	31
PID 108 wrote to memory of 3064	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	31
PID 108 wrote to memory of 3064	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	31
PID 108 wrote to memory of 2408	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	33
PID 108 wrote to memory of 2408	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	33
PID 108 wrote to memory of 2408	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	33
PID 108 wrote to memory of 2408	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	33
PID 108 wrote to memory of 1372	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	35
PID 108 wrote to memory of 1372	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	35
PID 108 wrote to memory of 1372	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	35
PID 108 wrote to memory of 1372	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	35
PID 108 wrote to memory of 2796	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	37
PID 108 wrote to memory of 2228	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	40
PID 108 wrote to memory of 2228	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	40
PID 108 wrote to memory of 2228	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	40
PID 108 wrote to memory of 2228	108	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	40
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42
PID 2956 wrote to memory of 2716	2956	bqrxkvpo.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eomqsvrv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bqrxkvpo.exe" C:\Windows\SysWOW64\eomqsvrv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eomqsvrv binPath= "C:\Windows\SysWOW64\eomqsvrv\bqrxkvpo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eomqsvrv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eomqsvrv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2228

C:\Windows\SysWOW64\eomqsvrv\bqrxkvpo.exe
C:\Windows\SysWOW64\eomqsvrv\bqrxkvpo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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:2716

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\bqrxkvpo.exe

Filesize
10.4MB

MD5
f1af6404fc6bef8a4ab3a86d197ae68f

SHA1
b0a297b199cda167adf3092138c84151828bb09c

SHA256
96883baaaf1510f255b39bd4464c4ace4b102b21755e895e7852136e580c1fcb

SHA512
bf03619c3ea86b823d7e977ca177f13d217923ff4726c9f4f8addbeda042eb158b1cfdca28cc51c41742b589a1cec53a877461b01081bde11102db41ff768f49

Download Submit
memory/108-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/108-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/108-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/108-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/108-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/108-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/108-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2716-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2716-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2716-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2716-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2956-16-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads