tofsee | 01ae748b435caebaa1cb01facf9bd72ee0218442abd27ba4f568b1c733b7ff8c

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 18:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe
Size

11.1MB
MD5

a7c01b6159e5aa569cc67d4ad0a361cd
SHA1

38621e164a7a14acc830852ea0fc8a20d2b51d17
SHA256

01ae748b435caebaa1cb01facf9bd72ee0218442abd27ba4f568b1c733b7ff8c
SHA512

542d8eaa20236659432a9b9168a905ed6551bda86e0cd1ef19d7b6e5498437c1bfb1b74d73946f4599373a662d2f3e9c5829b93f986f4acd2e202bfa559a24fc
SSDEEP

196608:vYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYo:vYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYo

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\fcbwdcox = "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
2432	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\fcbwdcox\ImagePath = "C:\\Windows\\SysWOW64\\fcbwdcox\\nlamgcnd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2476	nlamgcnd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 2436	2476	nlamgcnd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2288	sc.exe
2456	sc.exe
2592	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	cmd.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	nlamgcnd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.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 1760 wrote to memory of 2612	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2612	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2612	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2612	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2684	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	32
PID 1760 wrote to memory of 2684	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	32
PID 1760 wrote to memory of 2684	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	32
PID 1760 wrote to memory of 2684	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	32
PID 1760 wrote to memory of 2288	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	34
PID 1760 wrote to memory of 2288	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	34
PID 1760 wrote to memory of 2288	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	34
PID 1760 wrote to memory of 2288	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	34
PID 1760 wrote to memory of 2456	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	36
PID 1760 wrote to memory of 2456	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	36
PID 1760 wrote to memory of 2456	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	36
PID 1760 wrote to memory of 2456	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	36
PID 1760 wrote to memory of 2592	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	38
PID 1760 wrote to memory of 2592	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	38
PID 1760 wrote to memory of 2592	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	38
PID 1760 wrote to memory of 2592	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	38
PID 1760 wrote to memory of 2432	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	41
PID 1760 wrote to memory of 2432	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	41
PID 1760 wrote to memory of 2432	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	41
PID 1760 wrote to memory of 2432	1760	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	41
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43
PID 2476 wrote to memory of 2436	2476	nlamgcnd.exe	43

C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fcbwdcox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nlamgcnd.exe" C:\Windows\SysWOW64\fcbwdcox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fcbwdcox binPath= "C:\Windows\SysWOW64\fcbwdcox\nlamgcnd.exe /d\"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fcbwdcox "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fcbwdcox
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:2432

C:\Windows\SysWOW64\fcbwdcox\nlamgcnd.exe
C:\Windows\SysWOW64\fcbwdcox\nlamgcnd.exe /d"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- 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:2436

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nlamgcnd.exe

Filesize
11.3MB

MD5
fd04c66608a44f4979c17f7aa2b7b6f6

SHA1
903d6c81f2dcf3a4f5ab86389aa5ddd8b809ca20

SHA256
2e18a69132230cd24795c4b2a812cf5b7d8e6051918998777ba558268d9bbb65

SHA512
87e9d678ded130353291d6e8c2910648a53d17905a14856122a402187ee3e8ce9471b7a5c1b7ad59c343a8673c6a14bca75c5f83c5956e981f1e5ddcbda1bf4b

Download Submit
memory/1760-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1760-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1760-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/1760-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1760-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1760-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2436-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2436-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2436-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2436-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2476-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads