tofsee | 6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 00:34

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General

Target

JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe
Size

300KB
MD5

529139ecfc2c78c6eb3f958a8894b500
SHA1

9fcb7ad0db19b7a3d01919083923024b03c2b60f
SHA256

6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c
SHA512

d7d968013644d0dc15ec2133870da0843aee9c512692fad7151855b9cea6c16ad4b60348abba7ba36c01ecbf3bae233ddc6cdc2cbe8269d8d9bcedf31f5412b8
SSDEEP

6144:PAWM7LTrybl7ZxTqgqJL69XOOhxxdeTr/ekI:I77XWl/TQL69bzxd6L

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\yaqrekep = "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
2792	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\yaqrekep\ImagePath = "C:\\Windows\\SysWOW64\\yaqrekep\\hoanwjke.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	hoanwjke.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 2988	2904	hoanwjke.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
568	sc.exe
2412	sc.exe
2884	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hoanwjke.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 624	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	31
PID 1728 wrote to memory of 624	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	31
PID 1728 wrote to memory of 624	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	31
PID 1728 wrote to memory of 624	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	31
PID 1728 wrote to memory of 2276	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	33
PID 1728 wrote to memory of 2276	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	33
PID 1728 wrote to memory of 2276	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	33
PID 1728 wrote to memory of 2276	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	33
PID 1728 wrote to memory of 568	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	35
PID 1728 wrote to memory of 568	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	35
PID 1728 wrote to memory of 568	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	35
PID 1728 wrote to memory of 568	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	35
PID 1728 wrote to memory of 2412	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	37
PID 1728 wrote to memory of 2412	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	37
PID 1728 wrote to memory of 2412	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	37
PID 1728 wrote to memory of 2412	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	37
PID 1728 wrote to memory of 2884	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	39
PID 1728 wrote to memory of 2884	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	39
PID 1728 wrote to memory of 2884	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	39
PID 1728 wrote to memory of 2884	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	39
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	42
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	42
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	42
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe	42
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44
PID 2904 wrote to memory of 2988	2904	hoanwjke.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yaqrekep\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hoanwjke.exe" C:\Windows\SysWOW64\yaqrekep\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yaqrekep binPath= "C:\Windows\SysWOW64\yaqrekep\hoanwjke.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:568
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yaqrekep "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yaqrekep
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- 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:2792

C:\Windows\SysWOW64\yaqrekep\hoanwjke.exe
C:\Windows\SysWOW64\yaqrekep\hoanwjke.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6656018d3161ad50394e69d4c4d3ebac0d75f7e4bacca2c761d727ffa8d5057c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:2988

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\hoanwjke.exe

Filesize
13.9MB

MD5
4c898e8cd96a64b53d16a970edb1cccf

SHA1
bd4556e4554205b53f6f2670263c1ef0b5e10787

SHA256
af1ad13f0536cc867286791663ff355ea707ba9c4c0be8e39c90adea6840e1b9

SHA512
f734a1f306269f0bb2e5eb111697a18248f130961f86d55d8782dfb129a0d750f06e4ef7ec4d94d2a3812340fdb4e9d39986864e9919d57441f66cd8501d77a8

Download Submit
memory/1728-8-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1728-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1728-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/1728-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1728-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1728-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2904-16-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2988-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads