tofsee | 1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05

Analysis

max time kernel
148s
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 23:48

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General

Target

JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe
Size

238KB
MD5

8c0b6a48d2729e1b9a48357010f39c82
SHA1

1e91374534766030922b871cbb3bc4471002d90a
SHA256

1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05
SHA512

06ccfe6afac060df7bc1aee64d1674940304da523905566ea4a881b6cc879244e8e033a4941dc5b3177450fd13bf76db09bfa1cac8416b0897d55f58936e03a9
SSDEEP

6144:1NeWb3HTIEEEiq6EOQspL6l7ITsq7igavwVf:1N9b3HTIEmq6FbE79

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\pbpxcyti = "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
2076	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\pbpxcyti\ImagePath = "C:\\Windows\\SysWOW64\\pbpxcyti\\yezcluup.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	yezcluup.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 2816	2656	yezcluup.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1808	sc.exe
2732	sc.exe
2920	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	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yezcluup.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	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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	31
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	33
PID 2016 wrote to memory of 1808	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	35
PID 2016 wrote to memory of 1808	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	35
PID 2016 wrote to memory of 1808	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	35
PID 2016 wrote to memory of 1808	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	35
PID 2016 wrote to memory of 2732	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	37
PID 2016 wrote to memory of 2732	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	37
PID 2016 wrote to memory of 2732	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	37
PID 2016 wrote to memory of 2732	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	37
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	39
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2656 wrote to memory of 2816	2656	yezcluup.exe	42
PID 2016 wrote to memory of 2076	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	43
PID 2016 wrote to memory of 2076	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	43
PID 2016 wrote to memory of 2076	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	43
PID 2016 wrote to memory of 2076	2016	JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pbpxcyti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yezcluup.exe" C:\Windows\SysWOW64\pbpxcyti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pbpxcyti binPath= "C:\Windows\SysWOW64\pbpxcyti\yezcluup.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pbpxcyti "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pbpxcyti
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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:2076

C:\Windows\SysWOW64\pbpxcyti\yezcluup.exe
C:\Windows\SysWOW64\pbpxcyti\yezcluup.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cd1580b03e556fcb57e39fbe0343cfe83bdb8295465b2c8d1fdf9bccb665c05.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- 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:2816

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\yezcluup.exe

Filesize
12.5MB

MD5
ae377013a13fe3c6d35b5d607540ed45

SHA1
560ee1d380046e7269a01ccf5e823ae7b83c7ab8

SHA256
538a7a5c25101a0bd2dcc3b975c1d32c06494f97649a0ffcecaf3bb599b3648e

SHA512
df1fafa365e826d566e8d60e9e54626899074af12d1bfac353069347f5bf9f177a2788c052fb19129c3ec459f5f52569de84469e2ce263aa263d02eadde73a33

Download Submit
memory/2016-13-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2016-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2016-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2016-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2016-12-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2656-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2816-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-6-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads