tofsee | baaf5d81ae65db81c169c4da786d971683a1bafb848662d0202d80b0d0266d0c

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14-08-2024 07:31

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General

Target

9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe
Size

10.9MB
MD5

9529373105174adc561ae1e09488e8a6
SHA1

37d8a3f5cacc07f043212479e5a116010e455b17
SHA256

baaf5d81ae65db81c169c4da786d971683a1bafb848662d0202d80b0d0266d0c
SHA512

5fab1a29fc6f6cdc13c5eba140d0b6b76efe895358aeb550aced11b2609905899ed4926a9ab02b315c5cd1b108b99640782d57a8a5108f021d032fa0128fea2a
SSDEEP

196608:Xsvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv:X

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\mbrjfjzi = "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
2592	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\mbrjfjzi\ImagePath = "C:\\Windows\\SysWOW64\\mbrjfjzi\\jdzfqasy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	jdzfqasy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 3020	2772	jdzfqasy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2612	sc.exe
2600	sc.exe
2748	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jdzfqasy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9529373105174adc561ae1e09488e8a6_JaffaCakes118.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2820	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	30
PID 2312 wrote to memory of 2820	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	30
PID 2312 wrote to memory of 2820	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	30
PID 2312 wrote to memory of 2820	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	30
PID 2312 wrote to memory of 2724	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	32
PID 2312 wrote to memory of 2724	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	32
PID 2312 wrote to memory of 2724	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	32
PID 2312 wrote to memory of 2724	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	32
PID 2312 wrote to memory of 2612	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	34
PID 2312 wrote to memory of 2612	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	34
PID 2312 wrote to memory of 2612	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	34
PID 2312 wrote to memory of 2612	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	34
PID 2312 wrote to memory of 2600	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	36
PID 2312 wrote to memory of 2600	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	36
PID 2312 wrote to memory of 2600	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	36
PID 2312 wrote to memory of 2600	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	36
PID 2312 wrote to memory of 2748	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	38
PID 2312 wrote to memory of 2748	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	38
PID 2312 wrote to memory of 2748	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	38
PID 2312 wrote to memory of 2748	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	38
PID 2312 wrote to memory of 2592	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	41
PID 2312 wrote to memory of 2592	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	41
PID 2312 wrote to memory of 2592	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	41
PID 2312 wrote to memory of 2592	2312	9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe	41
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43
PID 2772 wrote to memory of 3020	2772	jdzfqasy.exe	43

C:\Users\Admin\AppData\Local\Temp\9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mbrjfjzi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jdzfqasy.exe" C:\Windows\SysWOW64\mbrjfjzi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mbrjfjzi binPath= "C:\Windows\SysWOW64\mbrjfjzi\jdzfqasy.exe /d\"C:\Users\Admin\AppData\Local\Temp\9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mbrjfjzi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mbrjfjzi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2592

C:\Windows\SysWOW64\mbrjfjzi\jdzfqasy.exe
C:\Windows\SysWOW64\mbrjfjzi\jdzfqasy.exe /d"C:\Users\Admin\AppData\Local\Temp\9529373105174adc561ae1e09488e8a6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:3020

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\jdzfqasy.exe

Filesize
10.5MB

MD5
2a7f2c6b249b3df488504feac5bfd19c

SHA1
e6915bf25ca429fda722c9752c38b8e72e84e6a1

SHA256
3d8a9cdcb47d21980bb3bf5dc4410b17897ba62b2d6fb2c8ea96fbd6a6668d25

SHA512
91c5123ba62c5acbe43d7ed6bf4c98c8b3c5d69ae1e6b9c8846e41144c8b0c813e50b6cefd385445a87e886998b3dbd4a750cf13e7055f6bc1bced2efd3e3d40

Download Submit
memory/2312-2-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/2312-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-3-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2312-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2312-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2772-16-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/3020-13-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3020-15-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3020-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-10-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3020-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads