tofsee | 3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 02:21

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General

Target

JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe
Size

237KB
MD5

42b410532b41241c0ea3bab2a448ba26
SHA1

2b7258ab8a0decda5cbf7d92d7506089df88c739
SHA256

3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9
SHA512

a211e69bc11dfff8e9f226eeba322c6719e76533adfc3274902b7d14cf3589b7b2074c697fecabb66e803a2d7b2f2d88a5f5e49c1d857abbacec888afe3f4231
SSDEEP

3072:i7Ms8zFqBRFmDU/YxGdypOiOCW7Qse0XkMT39UYpWrxpzbgqru2sxkgaBChApZaf:V1JqBRFmDU/cNEzHpuzbgwujigaLwVf

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\wzppejsu = "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
2840	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\wzppejsu\ImagePath = "C:\\Windows\\SysWOW64\\wzppejsu\\ibmcnkdw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	ibmcnkdw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 1916	2848	ibmcnkdw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2428	sc.exe
2248	sc.exe
2732	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.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	ibmcnkdw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 592 wrote to memory of 2544	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	30
PID 592 wrote to memory of 2544	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	30
PID 592 wrote to memory of 2544	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	30
PID 592 wrote to memory of 2544	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	30
PID 592 wrote to memory of 532	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	32
PID 592 wrote to memory of 532	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	32
PID 592 wrote to memory of 532	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	32
PID 592 wrote to memory of 532	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	32
PID 592 wrote to memory of 2428	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	34
PID 592 wrote to memory of 2428	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	34
PID 592 wrote to memory of 2428	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	34
PID 592 wrote to memory of 2428	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	34
PID 592 wrote to memory of 2248	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	36
PID 592 wrote to memory of 2248	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	36
PID 592 wrote to memory of 2248	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	36
PID 592 wrote to memory of 2248	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	36
PID 592 wrote to memory of 2732	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	38
PID 592 wrote to memory of 2732	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	38
PID 592 wrote to memory of 2732	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	38
PID 592 wrote to memory of 2732	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	38
PID 592 wrote to memory of 2840	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	41
PID 592 wrote to memory of 2840	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	41
PID 592 wrote to memory of 2840	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	41
PID 592 wrote to memory of 2840	592	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	41
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43
PID 2848 wrote to memory of 1916	2848	ibmcnkdw.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzppejsu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ibmcnkdw.exe" C:\Windows\SysWOW64\wzppejsu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wzppejsu binPath= "C:\Windows\SysWOW64\wzppejsu\ibmcnkdw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wzppejsu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wzppejsu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- 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:2840

C:\Windows\SysWOW64\wzppejsu\ibmcnkdw.exe
C:\Windows\SysWOW64\wzppejsu\ibmcnkdw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- 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:1916

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\ibmcnkdw.exe

Filesize
14.0MB

MD5
1d14bcc1364476f35ec63380ae091499

SHA1
d6494fa3115edd11924e674c80e5873ebc9c575f

SHA256
e76c8504765d411b9b72ad9646322a5d543f773a7cd7482a3b1cc1ff9072a639

SHA512
1f0b0faaf12e70cdeda67f1e31ca06552a89d1721e9ea42083c2cf8c2c60222e023c96c13c7ae11e4e63265d8dcf35ee469be7272d7af925ec33216cd8f84285

Download Submit
memory/592-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/592-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/592-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/592-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/592-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/592-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/592-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1916-15-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1916-13-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1916-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1916-10-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1916-17-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/2848-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads