tofsee | 4fe6a0bb0f44d47d3c4b6c0414a113587cb8ab0a9496a4075092b6e953149cfa

Analysis

max time kernel
146s
max time network
123s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 11:10

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General

Target

eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe
Size

11.3MB
MD5

eaee135dc12100d26a1cf65da750abec
SHA1

1ce584e03acda77cf06973c33d9df4822676830b
SHA256

4fe6a0bb0f44d47d3c4b6c0414a113587cb8ab0a9496a4075092b6e953149cfa
SHA512

0f105513744b777633bafa163be8954352a7913ba18e22e7808318633dc18e84a4a6e40107e68e7b0d14f28d28d5117bb5c11a9a5814f657616182747f5b17c4
SSDEEP

49152:0jrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrD:y

Score

10^/10

tofsee evasion persistence 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\mtnvjde = "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
2616	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\mtnvjde\ImagePath = "C:\\Windows\\SysWOW64\\mtnvjde\\utfbgqan.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2484	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	utfbgqan.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 2484	2464	utfbgqan.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2656	sc.exe
2924	sc.exe
2716	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 1260 wrote to memory of 2896	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	28
PID 1260 wrote to memory of 2896	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	28
PID 1260 wrote to memory of 2896	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	28
PID 1260 wrote to memory of 2896	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	28
PID 1260 wrote to memory of 2576	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	30
PID 1260 wrote to memory of 2576	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	30
PID 1260 wrote to memory of 2576	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	30
PID 1260 wrote to memory of 2576	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	30
PID 1260 wrote to memory of 2656	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	32
PID 1260 wrote to memory of 2656	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	32
PID 1260 wrote to memory of 2656	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	32
PID 1260 wrote to memory of 2656	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	32
PID 1260 wrote to memory of 2924	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	34
PID 1260 wrote to memory of 2924	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	34
PID 1260 wrote to memory of 2924	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	34
PID 1260 wrote to memory of 2924	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	34
PID 1260 wrote to memory of 2716	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	36
PID 1260 wrote to memory of 2716	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	36
PID 1260 wrote to memory of 2716	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	36
PID 1260 wrote to memory of 2716	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	36
PID 1260 wrote to memory of 2616	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	38
PID 1260 wrote to memory of 2616	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	38
PID 1260 wrote to memory of 2616	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	38
PID 1260 wrote to memory of 2616	1260	eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe	38
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41
PID 2464 wrote to memory of 2484	2464	utfbgqan.exe	41

C:\Users\Admin\AppData\Local\Temp\eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mtnvjde\
  2⤵
  PID:2896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\utfbgqan.exe" C:\Windows\SysWOW64\mtnvjde\
  2⤵
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mtnvjde binPath= "C:\Windows\SysWOW64\mtnvjde\utfbgqan.exe /d\"C:\Users\Admin\AppData\Local\Temp\eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mtnvjde "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mtnvjde
  2⤵
  - Launches sc.exe
  PID:2716
- 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\mtnvjde\utfbgqan.exe
C:\Windows\SysWOW64\mtnvjde\utfbgqan.exe /d"C:\Users\Admin\AppData\Local\Temp\eaee135dc12100d26a1cf65da750abec_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2484

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\utfbgqan.exe

Filesize
10.1MB

MD5
d7bb22c214c8ef5efc84b0d303e275ad

SHA1
d3f5339206f48eae0707e0932d5d7508af5c6f81

SHA256
4e9bac0e07e0275ec0421917c9acf6ab659dff15e0dfb416103b50c49e5875be

SHA512
2c0ac34629a082d574bd2c57b98cf185bd568f503609c1e74472a1c616d7d41253010dd6a0077cb7bbc24d4f3c0d15fedc0beeb36ac76ef0ab216b5796a72bbd

Download Submit
memory/1260-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1260-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1260-2-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1260-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1260-6-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2464-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2464-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2464-15-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2484-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2484-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2484-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2484-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2484-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2484-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads