tofsee | 015f6f0f6fdf5021bea0fff32edb4a157a6fdbc247defea1014db3dba9ac1803

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 18:55

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General

Target

JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe
Size

10.1MB
MD5

eb8a26f7dd1a2aa9cd9d0936ea552c1d
SHA1

919ab5a6753f6ef5610cb84d4aa123874183b0d0
SHA256

015f6f0f6fdf5021bea0fff32edb4a157a6fdbc247defea1014db3dba9ac1803
SHA512

8d3279ee482928a1db7da17f0dbdbbc10c8b9677ae217eff4ca8f9f51bdd21e7749e95c51ac96c8d777f78757987a9fd75f1a5d3f51dbf11248ecbb91adf0340
SSDEEP

49152:pkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

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\ugsauflp = "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
2956	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\ugsauflp\ImagePath = "C:\\Windows\\SysWOW64\\ugsauflp\\chrhva.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2792	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	chrhva.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2792	2856	chrhva.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2292	sc.exe
2776	sc.exe
2784	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chrhva.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.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	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 1972 wrote to memory of 2116	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	30
PID 1972 wrote to memory of 2116	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	30
PID 1972 wrote to memory of 2116	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	30
PID 1972 wrote to memory of 2116	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	30
PID 1972 wrote to memory of 2064	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	32
PID 1972 wrote to memory of 2064	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	32
PID 1972 wrote to memory of 2064	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	32
PID 1972 wrote to memory of 2064	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	32
PID 1972 wrote to memory of 2292	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	34
PID 1972 wrote to memory of 2292	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	34
PID 1972 wrote to memory of 2292	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	34
PID 1972 wrote to memory of 2292	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	34
PID 1972 wrote to memory of 2776	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	36
PID 1972 wrote to memory of 2776	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	36
PID 1972 wrote to memory of 2776	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	36
PID 1972 wrote to memory of 2776	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	36
PID 1972 wrote to memory of 2784	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	38
PID 1972 wrote to memory of 2784	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	38
PID 1972 wrote to memory of 2784	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	38
PID 1972 wrote to memory of 2784	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	38
PID 1972 wrote to memory of 2956	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	41
PID 1972 wrote to memory of 2956	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	41
PID 1972 wrote to memory of 2956	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	41
PID 1972 wrote to memory of 2956	1972	JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe	41
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43
PID 2856 wrote to memory of 2792	2856	chrhva.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ugsauflp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chrhva.exe" C:\Windows\SysWOW64\ugsauflp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ugsauflp binPath= "C:\Windows\SysWOW64\ugsauflp\chrhva.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ugsauflp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ugsauflp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- 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:2956

C:\Windows\SysWOW64\ugsauflp\chrhva.exe
C:\Windows\SysWOW64\ugsauflp\chrhva.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb8a26f7dd1a2aa9cd9d0936ea552c1d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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

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\chrhva.exe

Filesize
12.3MB

MD5
30f23d46b4fc97716aeb1cc1180461d4

SHA1
21d5dc5b4da7472aa8960b6e352fff88ed9bfcc6

SHA256
8afeda7a83b2138263e7cf1a31aa8158f4bfa1fab8c642aa411de5570e561608

SHA512
b989c73ac90dfa4d7414a3199737de60c1c765c78346a609250474b31fdb075ad51049c0d72f1b31fddbad1835ee689cdc33ae287f7826c0d62ed9637033f134

Download Submit
memory/1972-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1972-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/1972-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1972-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2792-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
84KB

Download
memory/2792-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

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

Filesize
84KB

Download
memory/2792-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads