tofsee | 26128830cb8a15abdbc9b22a6a1aaece6bb8c2a13abc1103611fec4d867629b6

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 20:00

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General

Target

JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
Size

152KB
MD5

6f352302073de0e2bfe05dbfb220d074
SHA1

c36f3014baf28b7667612752e025cf138b448f55
SHA256

26128830cb8a15abdbc9b22a6a1aaece6bb8c2a13abc1103611fec4d867629b6
SHA512

5a9af4c6682a681732ec8c603bf146ce86d7cc698dfdde744245156c887399d65bc38d2bd4ac2075ed86088a4539c2f252a337abd04ce7beb71d8913e8208677
SSDEEP

1536:oqJVtDbTMSjRZqsAONjZmZ9wkPGdkD8Vyzt/86My6n27InSJd:okTMNINjZBNkwmt/Ksd

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

103.9.150.244

188.190.120.102

121.127.250.203

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
Tofsee family
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe

Executes dropped EXE 2 IoCs

pid	Process
5064	xyqooian.exe
4820	xyqooian.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\xyqooian.exe\""	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5064 set thread context of 4820	5064	xyqooian.exe	86
PID 4820 set thread context of 3696	4820	xyqooian.exe	87

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
3360	3696	WerFault.exe	87

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	xyqooian.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xyqooian.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
5064	xyqooian.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 5012 wrote to memory of 1524	5012	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	82
PID 1524 wrote to memory of 5064	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	83
PID 1524 wrote to memory of 5064	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	83
PID 1524 wrote to memory of 5064	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	83
PID 1524 wrote to memory of 2348	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	84
PID 1524 wrote to memory of 2348	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	84
PID 1524 wrote to memory of 2348	1524	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	84
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 5064 wrote to memory of 4820	5064	xyqooian.exe	86
PID 4820 wrote to memory of 3696	4820	xyqooian.exe	87
PID 4820 wrote to memory of 3696	4820	xyqooian.exe	87
PID 4820 wrote to memory of 3696	4820	xyqooian.exe	87
PID 4820 wrote to memory of 3696	4820	xyqooian.exe	87
PID 4820 wrote to memory of 3696	4820	xyqooian.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1524
- - C:\Users\Admin\xyqooian.exe
    "C:\Users\Admin\xyqooian.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5064
  - - C:\Users\Admin\xyqooian.exe
      "C:\Users\Admin\xyqooian.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4820
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3696
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 356
        6⤵
        Program crash
        
        PID:3360
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1756.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3696 -ip 3696
1⤵
PID:2780

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\1756.bat

Filesize
266B

MD5
455baee54dba3722030d374b9d8a9112

SHA1
53890ee7936212def2252ef38e4f7e60cf9f44b4

SHA256
ac2cc3c91e4b0e00a5a2dc1a117c1c5003f3ee921b87a6ac59e338c750289bbf

SHA512
d215619489e2e86480ff56d0b70f1078ee991059f2c16196cc6d364971cd10a01c38497914d3020b88683bfb9691a354c99866fd5fbd4dd84e91969913d1fac9

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

Filesize
45.2MB

MD5
b927b55bf94d97fd3f5cc18efdb9de4e

SHA1
6a39351de3710e3a79a1e8bfab67aab821dfd459

SHA256
e7949793b77916d879746eb718f84504942f629d41bb6600cfedfe41f412cca8

SHA512
95bc45c94e0c29a365970947d068a36a3632e786adcf8a726103f697ffcaec63ab0d1d1f186e1c21f82e8c95977bb28a4c475b6bffaf1727632ff2c55dedc1e4

Download Submit
memory/1524-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1524-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1524-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1524-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3696-26-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/3696-40-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/3696-39-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/3696-32-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/3696-36-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/3696-33-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/4820-28-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4820-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5012-3-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/5012-2-0x0000000000406000-0x0000000000407000-memory.dmp

Filesize
4KB

Download
memory/5012-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/5064-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/5064-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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