tofsee | 53d16ce250b4493be862273542deac2e51ccdfed582296e2cccb8f5ab0a71ded

Analysis

max time kernel
134s
max time network
144s
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 03:22

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General

Target

d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe
Size

255KB
MD5

d36b567510f94d57d1687552eaae6dae
SHA1

643a4eeed3eb21ca7c0f5e719fa6b525d828c988
SHA256

53d16ce250b4493be862273542deac2e51ccdfed582296e2cccb8f5ab0a71ded
SHA512

f7c1e477a8bb954012f2d0a3dbdcb09831e7ef045cf884068558cc1d6b1d2af3c91532303d107f070f389259220bcac33db81ec27d0f53f0099d46e57bda8ef1
SSDEEP

3072:qEm2GULHYJlIwjXgWcdqylAHRWvLhPep457AYDikDbZp457ATCDikDbZp457AYD3:qsGUMMwL5cIyqu5J

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

31.210.119.2

188.165.132.183

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

Processes:

d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

wnya.exewnya.exe

pid	Process
1680	wnya.exe
1664	wnya.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\wnya.exe\" /r"	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exewnya.exewnya.exe

description	pid	Process	procid_target
PID 4420 set thread context of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 1680 set thread context of 1664	1680	wnya.exe	101
PID 1664 set thread context of 3148	1664	wnya.exe	102

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

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
5060	3148	WerFault.exe	102

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

Processes:

wnya.execmd.exewnya.exesvchost.exed36b567510f94d57d1687552eaae6dae_JaffaCakes118.exed36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wnya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wnya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exed36b567510f94d57d1687552eaae6dae_JaffaCakes118.exewnya.exewnya.exe

description	pid	Process	procid_target
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 4420 wrote to memory of 728	4420	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	95
PID 728 wrote to memory of 1680	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	96
PID 728 wrote to memory of 1680	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	96
PID 728 wrote to memory of 1680	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	96
PID 728 wrote to memory of 3408	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	97
PID 728 wrote to memory of 3408	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	97
PID 728 wrote to memory of 3408	728	d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe	97
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1680 wrote to memory of 1664	1680	wnya.exe	101
PID 1664 wrote to memory of 3148	1664	wnya.exe	102
PID 1664 wrote to memory of 3148	1664	wnya.exe	102
PID 1664 wrote to memory of 3148	1664	wnya.exe	102
PID 1664 wrote to memory of 3148	1664	wnya.exe	102
PID 1664 wrote to memory of 3148	1664	wnya.exe	102

C:\Users\Admin\AppData\Local\Temp\d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Local\Temp\d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d36b567510f94d57d1687552eaae6dae_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:728
- - C:\Users\Admin\wnya.exe
    "C:\Users\Admin\wnya.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1680
  - - C:\Users\Admin\wnya.exe
      "C:\Users\Admin\wnya.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1664
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3148
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 332
        6⤵
        Program crash
        
        PID:5060
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8883.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3148 -ip 3148
1⤵
PID:2392

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\8883.bat

Filesize
117B

MD5
77416faa4cf30b563062e2dbd924dfe4

SHA1
ec4b13a48a6f9d145f0684fbccf53d62bde27e5a

SHA256
9cfb682657df1777b7f9a95bb3b0c0f11dd2f8b026d65acc99ecccd86bdcb2d2

SHA512
3a46c206270fabfc721f3c23336cc6e9a00114f6a8faaee102e58859004abfb76f864fd02cb2e39eb7b0809a118fd5bbd8aa20297c54fe2704356961e4755763

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

Filesize
255KB

MD5
d36b567510f94d57d1687552eaae6dae

SHA1
643a4eeed3eb21ca7c0f5e719fa6b525d828c988

SHA256
53d16ce250b4493be862273542deac2e51ccdfed582296e2cccb8f5ab0a71ded

SHA512
f7c1e477a8bb954012f2d0a3dbdcb09831e7ef045cf884068558cc1d6b1d2af3c91532303d107f070f389259220bcac33db81ec27d0f53f0099d46e57bda8ef1

Download Submit
memory/728-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/728-2-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/728-12-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1664-18-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3148-19-0x00000000004E0000-0x0000000000516000-memory.dmp

Filesize
216KB

Download
memory/3148-26-0x00000000004E0000-0x0000000000516000-memory.dmp

Filesize
216KB

Download
memory/3148-30-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/3148-29-0x00000000004E0000-0x0000000000516000-memory.dmp

Filesize
216KB

Download
memory/3148-31-0x00000000004E0000-0x0000000000516000-memory.dmp

Filesize
216KB

Download
memory/3148-32-0x00000000004E0000-0x0000000000516000-memory.dmp

Filesize
216KB

Download