tofsee | a047a851b12c88e083bf15eb03bba7dd5dacca762b3f878dc669530af8ab5ffe

Analysis

max time kernel
135s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 20:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe
Size

154KB
MD5

d508c5d69ff1e3b8db949495652a5039
SHA1

610cc4e4f0d3d34ef394fc5fb1c1b4deacf140d0
SHA256

a047a851b12c88e083bf15eb03bba7dd5dacca762b3f878dc669530af8ab5ffe
SHA512

4d8102aa4e82452f5fa03b1ca663b6e2950a6ce7cf55ed81208b262ed79760cc79d4e0d7e379bd2196b5c02cd2ec8b86cbf4357b706501740278b3bbcada3daf
SSDEEP

3072:hICiI/K4N4Q7JA2G/GzOyoUI2aSifW7F3o2u9eXELFVoAq8q537ue:hX64t7Jyti+2EemVoACae

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

64.20.54.234

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3676	tof.exe
3476	tof.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\tof.exe\" /r"	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3120 set thread context of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3676 set thread context of 3476	3676	tof.exe	88
PID 3476 set thread context of 2000	3476	tof.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3780	2000	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 6 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	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tof.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tof.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3120 wrote to memory of 3532	3120	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	85
PID 3532 wrote to memory of 3676	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	86
PID 3532 wrote to memory of 3676	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	86
PID 3532 wrote to memory of 3676	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	86
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3676 wrote to memory of 3476	3676	tof.exe	88
PID 3476 wrote to memory of 2000	3476	tof.exe	89
PID 3476 wrote to memory of 2000	3476	tof.exe	89
PID 3476 wrote to memory of 2000	3476	tof.exe	89
PID 3476 wrote to memory of 2000	3476	tof.exe	89
PID 3476 wrote to memory of 2000	3476	tof.exe	89
PID 3532 wrote to memory of 4644	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	92
PID 3532 wrote to memory of 4644	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	92
PID 3532 wrote to memory of 4644	3532	d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Users\Admin\AppData\Local\Temp\d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d508c5d69ff1e3b8db949495652a5039_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Users\Admin\tof.exe
    "C:\Users\Admin\tof.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3676
  - - C:\Users\Admin\tof.exe
      "C:\Users\Admin\tof.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3476
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2000
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 204
        6⤵
        Program crash
        
        PID:3780
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2516.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2000 -ip 2000
1⤵
PID:3284

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\2516.bat

Filesize
117B

MD5
0da64ce01b66b7a5af760c02de4bceda

SHA1
3d8e8db3b4607180d55da888cd0cd9057493a25a

SHA256
87d2862fb6c589b3c412da46c4ccf9cf592791284f08a9d18293a41eb3048294

SHA512
ab62dbfbeb48b2c71137146082fae8ca95ce3a77442923eab0f281df2e4eadf9e2e49a3971e13e56bf3a5718b2ba028893fba6e4cbfd85d1193f04ac9d54a985

Download Submit
C:\Users\Admin\tof.exe

Filesize
154KB

MD5
d508c5d69ff1e3b8db949495652a5039

SHA1
610cc4e4f0d3d34ef394fc5fb1c1b4deacf140d0

SHA256
a047a851b12c88e083bf15eb03bba7dd5dacca762b3f878dc669530af8ab5ffe

SHA512
4d8102aa4e82452f5fa03b1ca663b6e2950a6ce7cf55ed81208b262ed79760cc79d4e0d7e379bd2196b5c02cd2ec8b86cbf4357b706501740278b3bbcada3daf

Download Submit
memory/2000-13-0x0000000000B80000-0x0000000000B93000-memory.dmp

Filesize
76KB

Download
memory/2000-21-0x0000000000B80000-0x0000000000B93000-memory.dmp

Filesize
76KB

Download
memory/2000-28-0x0000000000B80000-0x0000000000B93000-memory.dmp

Filesize
76KB

Download
memory/2000-29-0x0000000000F20000-0x0000000000F21000-memory.dmp

Filesize
4KB

Download
memory/2000-30-0x0000000000B80000-0x0000000000B93000-memory.dmp

Filesize
76KB

Download
memory/2000-31-0x0000000000B80000-0x0000000000B93000-memory.dmp

Filesize
76KB

Download
memory/3476-12-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3532-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3532-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3532-24-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads