tofsee | 46ae28c9e478a566cf6b803f2abc498eeaeb6b579e81067a8a26d8669e930dd0

General

Target

f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe
Size

10.4MB
MD5

f9c439a23d0f75c7943a026ea48d0847
SHA1

ce770c46965b40fb20baf9d505460cd32dd9a039
SHA256

46ae28c9e478a566cf6b803f2abc498eeaeb6b579e81067a8a26d8669e930dd0
SHA512

db1f56477c9a1a13922a8de7255003f8ef25be035cf24b28f98b1c4bf287d05f6b6ded2fb1f7167dd46c539deaa3d8ef3177a1d7d7da74cfce8fe931de137aa5
SSDEEP

196608:3vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvm:3vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvm

Score

10^/10

tofsee evasion persistence trojan upx

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\nwhdkeqd = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2616 netsh.exe

pid	process
2616	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\nwhdkeqd\ImagePath = "C:\\Windows\\SysWOW64\\nwhdkeqd\\zlkyjtbv.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2356 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

zlkyjtbv.exe

pid process

2660 zlkyjtbv.exe

pid	process
2356	svchost.exe

pid	process
2660	zlkyjtbv.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\zlkyjtbv.exe	upx

Suspicious use of SetThreadContext 1 IoCs

Processes:

zlkyjtbv.exe

description pid process target process

PID 2660 set thread context of 2356 2660 zlkyjtbv.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2888 sc.exe
2588 sc.exe
2512 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2660 set thread context of 2356	2660	zlkyjtbv.exe	svchost.exe

pid	process
2888	sc.exe
2588	sc.exe
2512	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exezlkyjtbv.exe

description	pid	process	target process
PID 640 wrote to memory of 2088	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2088	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2088	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2088	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2448	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2448	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2448	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2448	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	cmd.exe
PID 640 wrote to memory of 2588	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2588	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2588	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2588	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2512	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2512	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2512	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2512	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2888	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2888	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2888	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2888	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	sc.exe
PID 640 wrote to memory of 2616	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	netsh.exe
PID 640 wrote to memory of 2616	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	netsh.exe
PID 640 wrote to memory of 2616	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	netsh.exe
PID 640 wrote to memory of 2616	640	f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe	netsh.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe
PID 2660 wrote to memory of 2356	2660	zlkyjtbv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwhdkeqd\
  2⤵
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zlkyjtbv.exe" C:\Windows\SysWOW64\nwhdkeqd\
  2⤵
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwhdkeqd binPath= "C:\Windows\SysWOW64\nwhdkeqd\zlkyjtbv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwhdkeqd "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwhdkeqd
  2⤵
  - Launches sc.exe
  PID:2888
- 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
  PID:2616

C:\Windows\SysWOW64\nwhdkeqd\zlkyjtbv.exe
C:\Windows\SysWOW64\nwhdkeqd\zlkyjtbv.exe /d"C:\Users\Admin\AppData\Local\Temp\f9c439a23d0f75c7943a026ea48d0847_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\zlkyjtbv.exe

Filesize
13.9MB

MD5
48805a981cf6efa274fa1794b571263a

SHA1
12d0fe026f5680212bfd6f1c81377bf0f7de0bfe

SHA256
e607ad68814fe4bd580c8da9f8279329f07f7930bbdbd4caf346f000162e454d

SHA512
bf545d385618a18e7a536e03ce040b2880e3b95ff7fb6aacc6021a66e469a73c423aa9cca8e7abfa894a6dd3c949f0018f0b694f48798f0994c736795de15da0

Download Submit
memory/640-1-0x0000000005330000-0x0000000005430000-memory.dmp

Filesize
1024KB

Download
memory/640-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/640-5-0x0000000000400000-0x0000000005166000-memory.dmp

Filesize
77.4MB

Download
memory/640-6-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2356-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2356-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-9-0x00000000052F0000-0x00000000053F0000-memory.dmp

Filesize
1024KB

Download
memory/2660-16-0x0000000000400000-0x0000000005166000-memory.dmp

Filesize
77.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads