tofsee | 03c3bf89ec80ccc2ebb578d871ecda58b8623d0fcaac4fc95981ea15aeaa7ba9

Analysis

max time kernel
140s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/07/2024, 14:20

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General

Target

26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe
Size

127KB
MD5

26f79e78a4b445e1da768ce79e82c95b
SHA1

3aedd60770c0179990df20eb9bfc81904297c10d
SHA256

03c3bf89ec80ccc2ebb578d871ecda58b8623d0fcaac4fc95981ea15aeaa7ba9
SHA512

ace209673d901058793d806c3d033d5c676d33898fc032b39b23f8c4a241694f0e7dba14968076494b64d4d687bd0391d69ab9689e46ef99d076a41983a94e39
SSDEEP

3072:DR9RULLkf1SfmmzUhJUVWZ3KOcPpKEK6ARbF:DZaLq1SfmmIoi6BPprKbF

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qsbsnikj = "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
2624	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\qsbsnikj\ImagePath = "C:\\Windows\\SysWOW64\\qsbsnikj\\xfuyljss.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2924	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	xfuyljss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2924	2716	xfuyljss.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2564	sc.exe
3044	sc.exe
1964	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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 1972	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1972	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1972	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1972	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	28
PID 2144 wrote to memory of 2552	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	30
PID 2144 wrote to memory of 2552	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	30
PID 2144 wrote to memory of 2552	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	30
PID 2144 wrote to memory of 2552	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	30
PID 2144 wrote to memory of 2564	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	32
PID 2144 wrote to memory of 2564	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	32
PID 2144 wrote to memory of 2564	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	32
PID 2144 wrote to memory of 2564	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	32
PID 2144 wrote to memory of 3044	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	34
PID 2144 wrote to memory of 3044	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	34
PID 2144 wrote to memory of 3044	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	34
PID 2144 wrote to memory of 3044	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	34
PID 2144 wrote to memory of 1964	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	36
PID 2144 wrote to memory of 1964	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	36
PID 2144 wrote to memory of 1964	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	36
PID 2144 wrote to memory of 1964	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	36
PID 2144 wrote to memory of 2624	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	38
PID 2144 wrote to memory of 2624	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	38
PID 2144 wrote to memory of 2624	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	38
PID 2144 wrote to memory of 2624	2144	26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe	38
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41
PID 2716 wrote to memory of 2924	2716	xfuyljss.exe	41

C:\Users\Admin\AppData\Local\Temp\26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qsbsnikj\
  2⤵
  PID:1972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xfuyljss.exe" C:\Windows\SysWOW64\qsbsnikj\
  2⤵
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qsbsnikj binPath= "C:\Windows\SysWOW64\qsbsnikj\xfuyljss.exe /d\"C:\Users\Admin\AppData\Local\Temp\26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qsbsnikj "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:3044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qsbsnikj
  2⤵
  - Launches sc.exe
  PID:1964
- 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
  PID:2624

C:\Windows\SysWOW64\qsbsnikj\xfuyljss.exe
C:\Windows\SysWOW64\qsbsnikj\xfuyljss.exe /d"C:\Users\Admin\AppData\Local\Temp\26f79e78a4b445e1da768ce79e82c95b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2924

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.4MB

MD5
186afd0440f0d6ec1e319f4410c86ac3

SHA1
8ea98cf594325ae0f29aa6c9ebe5b175d7a6e777

SHA256
537ddc9e65e32004609963474ab9df40f120f771289407dd9cbbf27e3e7db121

SHA512
537afc781eb76366584e27ba34cf0e19c84f55f66529b20e8dbfdf2f494c17661daad7121f4d51ff0d07fd86dce26a5b5b1726b2eefc971d11dab93e1c49f334

Download Submit
memory/2144-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2144-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2144-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2144-6-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2144-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2144-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2716-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2924-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2924-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads