tofsee | 2ff16c73081301f457fc856f458d129953fbb7294273f31315b35fa6f71f2a0d

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 08:34

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General

Target

78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe
Size

12.9MB
MD5

78acc85d9c1ff8bcd03cf9a15fec8d08
SHA1

92dec1567b3cb8d70ae8397110b8a82c30b5ca06
SHA256

2ff16c73081301f457fc856f458d129953fbb7294273f31315b35fa6f71f2a0d
SHA512

b4241c7aab47766929d0d86c008917be2ccb11b262f16144c0ed865e67b9f1a5b99d666c807cf0e4008443038c276e22c39fd74bd71a4a001878f7db27f7c202
SSDEEP

49152:qcUGb2222222222222222222222222222222222222222222222222222222222G:qcU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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\dfuwixkb = "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
2672	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\dfuwixkb\ImagePath = "C:\\Windows\\SysWOW64\\dfuwixkb\\avzrhsus.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	avzrhsus.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 2768	2836	avzrhsus.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2096	sc.exe
2448	sc.exe
2864	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	avzrhsus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2440	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2440	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2440	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2440	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	30
PID 2076 wrote to memory of 3028	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	32
PID 2076 wrote to memory of 3028	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	32
PID 2076 wrote to memory of 3028	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	32
PID 2076 wrote to memory of 3028	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	32
PID 2076 wrote to memory of 2096	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	34
PID 2076 wrote to memory of 2096	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	34
PID 2076 wrote to memory of 2096	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	34
PID 2076 wrote to memory of 2096	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	34
PID 2076 wrote to memory of 2448	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	37
PID 2076 wrote to memory of 2448	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	37
PID 2076 wrote to memory of 2448	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	37
PID 2076 wrote to memory of 2448	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	37
PID 2076 wrote to memory of 2864	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	39
PID 2076 wrote to memory of 2864	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	39
PID 2076 wrote to memory of 2864	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	39
PID 2076 wrote to memory of 2864	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	39
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2836 wrote to memory of 2768	2836	avzrhsus.exe	42
PID 2076 wrote to memory of 2672	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	43
PID 2076 wrote to memory of 2672	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	43
PID 2076 wrote to memory of 2672	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	43
PID 2076 wrote to memory of 2672	2076	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	43

C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfuwixkb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\avzrhsus.exe" C:\Windows\SysWOW64\dfuwixkb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dfuwixkb binPath= "C:\Windows\SysWOW64\dfuwixkb\avzrhsus.exe /d\"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dfuwixkb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dfuwixkb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:2672

C:\Windows\SysWOW64\dfuwixkb\avzrhsus.exe
C:\Windows\SysWOW64\dfuwixkb\avzrhsus.exe /d"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- 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:2768

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\avzrhsus.exe

Filesize
14.0MB

MD5
98ef6517ee040d5726fa4a8b576013ef

SHA1
868bab10f0a0ca10375862ff048cea6af36b696a

SHA256
64209a375a9055e7588c5f88e7d17a5edc22a34bf461d33aa3a6e8b5993888d2

SHA512
5ca144732037bf2d37ef5482a64057d3450b5fb2170ef337253579a543ae92a24ff685d9f4daf6aeeed0c172874241eeddbfd84722770e35f74489b0aac1de04

Download Submit
memory/2076-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-14-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2076-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2076-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2768-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2836-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads