tofsee | 014c0a8ffe11dee61e5beb740fbc223168e83ed53fae145e25d1bda0861933c2

Analysis

max time kernel
151s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-04-2024 13:44

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General

Target

ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe
Size

10.1MB
MD5

ed8f416c4403957fb730b5d7098a9b38
SHA1

a7c0c32bcb36395543ccd093c5d95bd0e4e93121
SHA256

014c0a8ffe11dee61e5beb740fbc223168e83ed53fae145e25d1bda0861933c2
SHA512

6dc94a0cde76db32fbfb571634ae7084d4333ab99d8ffc2ef7aeed57e8a3c7295417264106856fbd8c6c2714f261ed394a13a5877afabead30c86f5fdcb3a594
SSDEEP

49152:2T81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMc:2T8

Score

10^/10

tofsee evasion persistence 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\pwhdndx = "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

pid	Process
2680	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\pwhdndx\ImagePath = "C:\\Windows\\SysWOW64\\pwhdndx\\yyvqtkbt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2396	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2360	yyvqtkbt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 2396	2360	yyvqtkbt.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2436	sc.exe
2512	sc.exe
2460	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 1936	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	28
PID 1400 wrote to memory of 1936	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	28
PID 1400 wrote to memory of 1936	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	28
PID 1400 wrote to memory of 1936	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	28
PID 1400 wrote to memory of 2104	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	30
PID 1400 wrote to memory of 2104	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	30
PID 1400 wrote to memory of 2104	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	30
PID 1400 wrote to memory of 2104	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	30
PID 1400 wrote to memory of 2460	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	32
PID 1400 wrote to memory of 2460	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	32
PID 1400 wrote to memory of 2460	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	32
PID 1400 wrote to memory of 2460	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	32
PID 1400 wrote to memory of 2436	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	34
PID 1400 wrote to memory of 2436	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	34
PID 1400 wrote to memory of 2436	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	34
PID 1400 wrote to memory of 2436	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	34
PID 1400 wrote to memory of 2512	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	36
PID 1400 wrote to memory of 2512	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	36
PID 1400 wrote to memory of 2512	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	36
PID 1400 wrote to memory of 2512	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	36
PID 1400 wrote to memory of 2680	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	39
PID 1400 wrote to memory of 2680	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	39
PID 1400 wrote to memory of 2680	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	39
PID 1400 wrote to memory of 2680	1400	ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe	39
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41
PID 2360 wrote to memory of 2396	2360	yyvqtkbt.exe	41

C:\Users\Admin\AppData\Local\Temp\ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pwhdndx\
  2⤵
  PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yyvqtkbt.exe" C:\Windows\SysWOW64\pwhdndx\
  2⤵
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pwhdndx binPath= "C:\Windows\SysWOW64\pwhdndx\yyvqtkbt.exe /d\"C:\Users\Admin\AppData\Local\Temp\ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pwhdndx "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pwhdndx
  2⤵
  - Launches sc.exe
  PID:2512
- 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:2680

C:\Windows\SysWOW64\pwhdndx\yyvqtkbt.exe
C:\Windows\SysWOW64\pwhdndx\yyvqtkbt.exe /d"C:\Users\Admin\AppData\Local\Temp\ed8f416c4403957fb730b5d7098a9b38_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.6MB

MD5
2040df2760b1bc424cee32449d74f485

SHA1
626c81daa770c4fabafff59156bcf15d3f0affe5

SHA256
05f7c6baccc06e2adde9e769ebac0016c0db7131fdd3b091e38d6301c55ff4bd

SHA512
3289722afd770544601768c38f140b769a9dd394072802aceab679b205549146235c4269f210d8c706e6092fabcf2d1ea972ab6e002f3ad801cd9e28a30b0fff

Download Submit
memory/1400-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1400-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1400-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1400-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1400-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2360-10-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2360-11-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2360-18-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2396-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2396-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2396-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2396-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2396-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2396-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads