tofsee | 5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 23:47

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General

Target

JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe
Size

238KB
MD5

b2fa4e2d6fa858be14ff3f823b7f76fb
SHA1

608a467bfe20c69e2878c8df74017b6649a965af
SHA256

5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323
SHA512

44a13f9e38f1f54cb7dd1bb428f6a5ef7584a471ed2cf72f68662dcc1af1b1acf5b6711dd0ae465b11a60024055b20353ccd3f6b3389130726917c0877415999
SSDEEP

3072:67QHNeYxb1NIHOQcm01jxD52D87Cg2G+yP70iVggjcGkNIVqI7sxkgaBChMpZa96:fNeWb3u29xD8XGxPl7ITsq7igavwVf

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\yplrmiet = "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
2644	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\yplrmiet\ImagePath = "C:\\Windows\\SysWOW64\\yplrmiet\\chgeuajy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	chgeuajy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2788	2780	chgeuajy.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2756	sc.exe
1048	sc.exe
2632	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chgeuajy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2932	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	28
PID 2408 wrote to memory of 2932	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	28
PID 2408 wrote to memory of 2932	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	28
PID 2408 wrote to memory of 2932	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	28
PID 2408 wrote to memory of 1644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	30
PID 2408 wrote to memory of 1644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	30
PID 2408 wrote to memory of 1644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	30
PID 2408 wrote to memory of 1644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	30
PID 2408 wrote to memory of 1048	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	32
PID 2408 wrote to memory of 1048	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	32
PID 2408 wrote to memory of 1048	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	32
PID 2408 wrote to memory of 1048	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	32
PID 2408 wrote to memory of 2632	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	34
PID 2408 wrote to memory of 2632	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	34
PID 2408 wrote to memory of 2632	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	34
PID 2408 wrote to memory of 2632	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	34
PID 2408 wrote to memory of 2756	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	36
PID 2408 wrote to memory of 2756	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	36
PID 2408 wrote to memory of 2756	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	36
PID 2408 wrote to memory of 2756	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	36
PID 2408 wrote to memory of 2644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	39
PID 2408 wrote to memory of 2644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	39
PID 2408 wrote to memory of 2644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	39
PID 2408 wrote to memory of 2644	2408	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	39
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41
PID 2780 wrote to memory of 2788	2780	chgeuajy.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yplrmiet\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chgeuajy.exe" C:\Windows\SysWOW64\yplrmiet\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yplrmiet binPath= "C:\Windows\SysWOW64\yplrmiet\chgeuajy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yplrmiet "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yplrmiet
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- 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:2644

C:\Windows\SysWOW64\yplrmiet\chgeuajy.exe
C:\Windows\SysWOW64\yplrmiet\chgeuajy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- 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:2788

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\chgeuajy.exe

Filesize
12.6MB

MD5
61ebd45b28414769d375cb5f3218a3cc

SHA1
3898f7310cc8f21b850c61651a5866e0bec9cd4b

SHA256
64cc76d4b41f51d5a7cd36621fce689cb7b7aa27353f7eb04118a1d351321b65

SHA512
fb16c1cbb97e68ab7067de8034fa1ef5bffedfbc68ae63c5b5209392a8c8159d543ecd97dbd92f6c4ec524d107f029d519c7ed7b7f914df6d8bcaab1e0eaf1c0

Download Submit
memory/2408-7-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2408-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-1-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/2408-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-8-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/2408-0-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2408-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2780-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2788-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads