tofsee | 387aed56da6bf8cc2a2be6be910747e14380408689ef011227b4bec12fb1ecb2

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
10/09/2024, 06:46

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General

Target

d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe
Size

114KB
MD5

d7bce7dc29f9c05fba85e2922583c0cd
SHA1

95a82ccfdad81f093dd63a4e64b6449ec518db23
SHA256

387aed56da6bf8cc2a2be6be910747e14380408689ef011227b4bec12fb1ecb2
SHA512

21a51f566b342fb41a38b8f1aa4ab081159ee51ee7fe6bdea6c4d93ca8c374509e3db35ff2c5d0641d6e5202a70a4dc4c8045585d3f0a4f31a3d497d148bca8a
SSDEEP

3072:oYltF2ixWmZLprvw5EL0WHRVUlvw3ypP5:dltwKDvwEZxilvn

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

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\lfbxeerk = "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
2772	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\lfbxeerk\ImagePath = "C:\\Windows\\SysWOW64\\lfbxeerk\\qcdxsopm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2792	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2960	qcdxsopm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2960 set thread context of 2792	2960	qcdxsopm.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
3064	sc.exe
1096	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	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.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	qcdxsopm.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	qcdxsopm.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 236	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	29
PID 984 wrote to memory of 236	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	29
PID 984 wrote to memory of 236	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	29
PID 984 wrote to memory of 236	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	29
PID 984 wrote to memory of 2268	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	31
PID 984 wrote to memory of 2268	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	31
PID 984 wrote to memory of 2268	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	31
PID 984 wrote to memory of 2268	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	31
PID 984 wrote to memory of 3064	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	33
PID 984 wrote to memory of 3064	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	33
PID 984 wrote to memory of 3064	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	33
PID 984 wrote to memory of 3064	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	33
PID 984 wrote to memory of 1096	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	35
PID 984 wrote to memory of 1096	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	35
PID 984 wrote to memory of 1096	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	35
PID 984 wrote to memory of 1096	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	35
PID 984 wrote to memory of 2740	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	37
PID 984 wrote to memory of 2740	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	37
PID 984 wrote to memory of 2740	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	37
PID 984 wrote to memory of 2740	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	37
PID 984 wrote to memory of 2772	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	39
PID 984 wrote to memory of 2772	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	39
PID 984 wrote to memory of 2772	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	39
PID 984 wrote to memory of 2772	984	d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe	39
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42
PID 2960 wrote to memory of 2792	2960	qcdxsopm.exe	42

C:\Users\Admin\AppData\Local\Temp\d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lfbxeerk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcdxsopm.exe" C:\Windows\SysWOW64\lfbxeerk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lfbxeerk binPath= "C:\Windows\SysWOW64\lfbxeerk\qcdxsopm.exe /d\"C:\Users\Admin\AppData\Local\Temp\d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lfbxeerk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lfbxeerk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- 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:2772

C:\Windows\SysWOW64\lfbxeerk\qcdxsopm.exe
C:\Windows\SysWOW64\lfbxeerk\qcdxsopm.exe /d"C:\Users\Admin\AppData\Local\Temp\d7bce7dc29f9c05fba85e2922583c0cd_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:2960
- 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:2792

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

Query Registry

T1012

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\qcdxsopm.exe

Filesize
11.3MB

MD5
1e5cf0c673bba728bb5a5d89d59ab3a7

SHA1
df012df16da18f09676fad87c6ef392fe944eabc

SHA256
3b2c56bac20cdd74726ed9fe4bdc71e35c02def209dab149061dbb79550b9d06

SHA512
bc3a67b818d66c0bc465829dafca083e61894dce0b79d15d41382c108108f8f935498084bdb505045c4df38d519baef140064961019b06c10aab560770241d3d

Download Submit
memory/984-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/984-2-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/984-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/984-5-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2792-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2960-7-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2960-12-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads