tofsee | 4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 06:05

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General

Target

JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe
Size

244KB
MD5

ed6e8ed7d52dd0197e76260ad64d15a8
SHA1

90410de20da95b495a3dc0ca2f9c081171e8d1b3
SHA256

4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980
SHA512

aac419b880bc4e2864e8fcc0806ca37587cf697781db0378d9b3ea688c5d40e53a5dfc3fab3d698dc6aa843eb7c2a99005d5511137ef0021320e85362dd96edf
SSDEEP

6144:Z2ZQ64l6/zVv1L11dwFB3uZUGcDQDWT7snfu/c8:kZj/zVtLo3uWXQDWT7CfuU

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
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\vdjidncs = "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
2212	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\vdjidncs\ImagePath = "C:\\Windows\\SysWOW64\\vdjidncs\\sxtljmy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2152	sxtljmy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2152 set thread context of 2704	2152	sxtljmy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2660	sc.exe
2220	sc.exe
1792	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.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	sxtljmy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 1076	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	30
PID 2500 wrote to memory of 1076	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	30
PID 2500 wrote to memory of 1076	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	30
PID 2500 wrote to memory of 1076	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	30
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	32
PID 2500 wrote to memory of 1792	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	34
PID 2500 wrote to memory of 1792	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	34
PID 2500 wrote to memory of 1792	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	34
PID 2500 wrote to memory of 1792	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	34
PID 2500 wrote to memory of 2660	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	36
PID 2500 wrote to memory of 2660	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	36
PID 2500 wrote to memory of 2660	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	36
PID 2500 wrote to memory of 2660	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	36
PID 2500 wrote to memory of 2220	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	38
PID 2500 wrote to memory of 2220	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	38
PID 2500 wrote to memory of 2220	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	38
PID 2500 wrote to memory of 2220	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	38
PID 2500 wrote to memory of 2212	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	41
PID 2500 wrote to memory of 2212	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	41
PID 2500 wrote to memory of 2212	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	41
PID 2500 wrote to memory of 2212	2500	JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe	41
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43
PID 2152 wrote to memory of 2704	2152	sxtljmy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vdjidncs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxtljmy.exe" C:\Windows\SysWOW64\vdjidncs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vdjidncs binPath= "C:\Windows\SysWOW64\vdjidncs\sxtljmy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vdjidncs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vdjidncs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2220
- 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:2212

C:\Windows\SysWOW64\vdjidncs\sxtljmy.exe
C:\Windows\SysWOW64\vdjidncs\sxtljmy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012e55d1495bcc3440ccc5dc5bd17b021f0724a3c947eed7b3c9bb0a9195980.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- 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:2704

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\sxtljmy.exe

Filesize
14.9MB

MD5
08f26ee44292e507324d0d066ae90297

SHA1
da7983c093acfab2ef910b8da15edc8b676d78d1

SHA256
551777ec2428c421603268391fa0f6bab0d333905864457cc35de27f2f3a0f49

SHA512
dbfe843d73888667b9d451f74219ba9d0f3367d6f66b909bdb38c3e437f5b72bcdeb51a2a5eec82f2651326d54196ff7d7f5f0df39a53d145a38e2042ee895e7

Download Submit
memory/2152-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2500-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2500-3-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2500-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-9-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2704-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2704-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2704-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2704-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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