tofsee | 31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 00:20

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General

Target

JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
Size

187KB
MD5

e51f2c8d6cf01eb1334b595012f4458a
SHA1

29750148c250ac59edd7015d8136c01cc030ea96
SHA256

31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62
SHA512

76a801b9a9630c89e5e869787f83f1a8c6e2e897b72cb20469eefd0900a16426a67316e44da01fa60d50d360ed03d34d22884f3570f178dc8e302227d6526805
SSDEEP

3072:57ojA4DTPi9x53DbgRCm/m2+XhcrJ2l3c3LZIpZa9uD6Vdyhk9:YA4DTPil3Dq/d+Rc8c36wVf

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\ufdqqhgt = "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
2732	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\ufdqqhgt\ImagePath = "C:\\Windows\\SysWOW64\\ufdqqhgt\\vklrepji.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	vklrepji.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2852	2820	vklrepji.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2980	sc.exe
2752	sc.exe
2836	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	sc.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	vklrepji.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	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 3036	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	30
PID 632 wrote to memory of 2328	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	32
PID 632 wrote to memory of 2980	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	34
PID 632 wrote to memory of 2980	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	34
PID 632 wrote to memory of 2980	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	34
PID 632 wrote to memory of 2980	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	34
PID 632 wrote to memory of 2752	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	36
PID 632 wrote to memory of 2752	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	36
PID 632 wrote to memory of 2752	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	36
PID 632 wrote to memory of 2752	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	36
PID 632 wrote to memory of 2836	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	38
PID 632 wrote to memory of 2836	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	38
PID 632 wrote to memory of 2836	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	38
PID 632 wrote to memory of 2836	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	38
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 2820 wrote to memory of 2852	2820	vklrepji.exe	41
PID 632 wrote to memory of 2732	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	42
PID 632 wrote to memory of 2732	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	42
PID 632 wrote to memory of 2732	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	42
PID 632 wrote to memory of 2732	632	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ufdqqhgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vklrepji.exe" C:\Windows\SysWOW64\ufdqqhgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ufdqqhgt binPath= "C:\Windows\SysWOW64\ufdqqhgt\vklrepji.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ufdqqhgt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ufdqqhgt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2732

C:\Windows\SysWOW64\ufdqqhgt\vklrepji.exe
C:\Windows\SysWOW64\ufdqqhgt\vklrepji.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2852

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\vklrepji.exe

Filesize
12.4MB

MD5
6d52126b5306c3560ccb19c744318e77

SHA1
e5989e30e79ec0ef9a921cf193ef03c3a7cbfc95

SHA256
9e1b6ea4de6ddb49edc60e19b6e4d7db3355628e3c3f52c519c7fb4fc702d38f

SHA512
d3b9603bcda38508ae3de9fff45e68bfc5215fe5ff51bbb28764a8b784baf4f08cbf151adf74f67a170ad8b9e65db0ad83d46454d896b0c85f1d68a5efe4736a

Download Submit
memory/632-14-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/632-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/632-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/632-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/632-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-13-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2820-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-6-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads