tofsee | a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 00:02

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General

Target

JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe
Size

289KB
MD5

82845a403854a1f7eb1d89706dd6bde1
SHA1

08d17dabc37b3641d6ab803f5b72a82ba5132947
SHA256

a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60
SHA512

dd33440678c7aa7b11126cdf6840033e999c4eb04b7f80d8509fb63e3e1c39df3fde7679ae042367416669649082f33e4cef909d8a21189eee1af01b48053e24
SSDEEP

6144:uJBlewtGLSgZiJqm0kUOE/pAwCdMNfc4FROhxxpeTr/ekI:0lBGPZiMm0kxE/pOzzxp6L

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\eayzjpwb = "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
2404	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\eayzjpwb\ImagePath = "C:\\Windows\\SysWOW64\\eayzjpwb\\ovtejesg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1036	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	ovtejesg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 1036	2744	ovtejesg.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2684	sc.exe
1576	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ovtejesg.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2792	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	30
PID 2912 wrote to memory of 2792	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	30
PID 2912 wrote to memory of 2792	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	30
PID 2912 wrote to memory of 2792	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	30
PID 2912 wrote to memory of 2980	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	32
PID 2912 wrote to memory of 2980	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	32
PID 2912 wrote to memory of 2980	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	32
PID 2912 wrote to memory of 2980	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	32
PID 2912 wrote to memory of 1576	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	34
PID 2912 wrote to memory of 1576	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	34
PID 2912 wrote to memory of 1576	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	34
PID 2912 wrote to memory of 1576	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	34
PID 2912 wrote to memory of 2780	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	36
PID 2912 wrote to memory of 2780	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	36
PID 2912 wrote to memory of 2780	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	36
PID 2912 wrote to memory of 2780	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	36
PID 2912 wrote to memory of 2684	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	38
PID 2912 wrote to memory of 2684	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	38
PID 2912 wrote to memory of 2684	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	38
PID 2912 wrote to memory of 2684	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	38
PID 2912 wrote to memory of 2404	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	41
PID 2912 wrote to memory of 2404	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	41
PID 2912 wrote to memory of 2404	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	41
PID 2912 wrote to memory of 2404	2912	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	41
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43
PID 2744 wrote to memory of 1036	2744	ovtejesg.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eayzjpwb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovtejesg.exe" C:\Windows\SysWOW64\eayzjpwb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eayzjpwb binPath= "C:\Windows\SysWOW64\eayzjpwb\ovtejesg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eayzjpwb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eayzjpwb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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:2404

C:\Windows\SysWOW64\eayzjpwb\ovtejesg.exe
C:\Windows\SysWOW64\eayzjpwb\ovtejesg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:1036

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\ovtejesg.exe

Filesize
11.3MB

MD5
70c71ae76e63afa623e02f3d879eb70e

SHA1
97ea94276df415e96b7ba04409a06b871956b5ef

SHA256
2218d6262cc810d37367dc2b7f1cc57ab8c7f43b0d8fce7fe4a571c252892e13

SHA512
9e66ab32b2f98c59d6051fab58db79957a974e451e53174abf248f7729e6071ca85193711f36eb2f5effee48678387ec1b7c44267a7b409111f2f6d79999f7c4

Download Submit
memory/1036-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1036-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1036-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1036-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1036-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2912-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2912-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2912-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2912-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2912-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2912-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads