tofsee | 5893b223a7a45ece6853b1f9770b8acad72c8dcd01bdc04320aaa1d0fe2de41c

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 08:48

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General

Target

2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe
Size

254KB
MD5

2e2aada4b6ae1c5393c753b9f9b6fba0
SHA1

4493842c4e76d00bd16c68d656fd205cdc031cff
SHA256

5893b223a7a45ece6853b1f9770b8acad72c8dcd01bdc04320aaa1d0fe2de41c
SHA512

fac139a178aa1e1edd3f347b3d149731daa0f0d5dd02f82004777d6a235f6a88be1c9da300f4903d7ce6a97ebec2c008ac9562c46e65b14adec20d7f272de752
SSDEEP

6144:8vmmRGQcKp2eBXCMdOG7a4hBbUNmNLGJD0fr0Fk4qU:8ekPcKp2YXZ9a4bUNmb0F3q

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

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\dcpuqwsx = "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
2824	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\dcpuqwsx\ImagePath = "C:\\Windows\\SysWOW64\\dcpuqwsx\\pfffulrj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	pfffulrj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 1664	2748	pfffulrj.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2008	sc.exe
2372	sc.exe
2812	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	pfffulrj.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e2aada4b6ae1c5393c753b9f9b6fba0_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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 344	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	29
PID 2364 wrote to memory of 344	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	29
PID 2364 wrote to memory of 344	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	29
PID 2364 wrote to memory of 344	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	29
PID 2364 wrote to memory of 1528	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	31
PID 2364 wrote to memory of 1528	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	31
PID 2364 wrote to memory of 1528	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	31
PID 2364 wrote to memory of 1528	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2008	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2008	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2008	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2008	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2372	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	35
PID 2364 wrote to memory of 2372	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	35
PID 2364 wrote to memory of 2372	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	35
PID 2364 wrote to memory of 2372	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	35
PID 2364 wrote to memory of 2812	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2812	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2812	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2812	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2824	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	40
PID 2364 wrote to memory of 2824	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	40
PID 2364 wrote to memory of 2824	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	40
PID 2364 wrote to memory of 2824	2364	2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe	40
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42
PID 2748 wrote to memory of 1664	2748	pfffulrj.exe	42

C:\Users\Admin\AppData\Local\Temp\2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dcpuqwsx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pfffulrj.exe" C:\Windows\SysWOW64\dcpuqwsx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dcpuqwsx binPath= "C:\Windows\SysWOW64\dcpuqwsx\pfffulrj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dcpuqwsx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dcpuqwsx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2824

C:\Windows\SysWOW64\dcpuqwsx\pfffulrj.exe
C:\Windows\SysWOW64\dcpuqwsx\pfffulrj.exe /d"C:\Users\Admin\AppData\Local\Temp\2e2aada4b6ae1c5393c753b9f9b6fba0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:1664

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\pfffulrj.exe

Filesize
13.4MB

MD5
7cfeb35fd2ea5ec38938194922a30c94

SHA1
923f9d409e659593dc9f75a7ae8074163d4369f7

SHA256
aed2a2b424aa31b5d256dc184638b7c9876376cf30388f1d8448870fd7607dd1

SHA512
b4197eee8a9ef118b3bc27a97c8fb26335b5dd467388bde840b1def4d9da3635b0b31197ba96730ef5ecd3a264cad3e957b845d1eec0e1bcf144c66b28aed8ac

Download Submit
memory/1664-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1664-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1664-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1664-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2364-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2364-8-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2364-1-0x0000000000970000-0x0000000000A70000-memory.dmp

Filesize
1024KB

Download
memory/2748-17-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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