tofsee | 1f6a39c4520debfe0f31de642611dfe844c67eb5fc7b4af138df9c6b191a14a1

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 06:28

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General

Target

JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
Size

112KB
MD5

633916351d1724c5dee57d31ee60adb6
SHA1

fddbffaf67742208cad9036564acdae7520d3390
SHA256

1f6a39c4520debfe0f31de642611dfe844c67eb5fc7b4af138df9c6b191a14a1
SHA512

32364dd7dcda32dc3148bc724282fea427494eaa3045096749f68479cd7eb3c2842290cb72b9de0c33965d453cb4792ee17874d6b27f9238cecc2e968afb1977
SSDEEP

3072:gjgRyvXEFiKfQ15q4Qe4FVwtwwgs4XBcO4:HRGX4kC1eZ6w

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

111.121.193.238

188.190.114.19

103.244.1.233

188.165.132.183

213.155.0.208

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

Deletes itself 1 IoCs

pid	Process
2752	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2336	yhovalpq.exe
2612	yhovalpq.exe

Loads dropped DLL 2 IoCs

pid	Process
3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\yhovalpq.exe\""	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 2336 set thread context of 2612	2336	yhovalpq.exe	34
PID 2612 set thread context of 2768	2612	yhovalpq.exe	35

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

System Information Discovery
T1082

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	yhovalpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yhovalpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
2336	yhovalpq.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 1680 wrote to memory of 3020	1680	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	30
PID 3020 wrote to memory of 2336	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	31
PID 3020 wrote to memory of 2336	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	31
PID 3020 wrote to memory of 2336	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	31
PID 3020 wrote to memory of 2336	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	31
PID 3020 wrote to memory of 2752	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	32
PID 3020 wrote to memory of 2752	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	32
PID 3020 wrote to memory of 2752	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	32
PID 3020 wrote to memory of 2752	3020	JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe	32
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2336 wrote to memory of 2612	2336	yhovalpq.exe	34
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35
PID 2612 wrote to memory of 2768	2612	yhovalpq.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633916351d1724c5dee57d31ee60adb6.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Users\Admin\yhovalpq.exe
    "C:\Users\Admin\yhovalpq.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Users\Admin\yhovalpq.exe
      "C:\Users\Admin\yhovalpq.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2612
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2768
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\3844.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2752

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

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\3844.bat

Filesize
266B

MD5
1ab340cf432c9a87d50563a83c868c00

SHA1
883c4e47b5995189d054a224efeb571173b5fc3e

SHA256
e8d30c20e1a69b016413c8c34248c7021f803f11bc0a4dc014a72613d784dc3c

SHA512
e7289614b333bd64cdc736f9e7b8e2f19e3f62bd00cacda5e5341e53e4959cc76e6cd33a2e00c096d8c50e00a5e9e5d3b58b8fba5f6643bda758949c09e1a0a4

Download Submit
\Users\Admin\yhovalpq.exe

Filesize
33.2MB

MD5
20324640d54f11607855fad7a90ec646

SHA1
407a39601a9052e38551d76b52b1ec493bcbb6e9

SHA256
0c1cf6a84219f3500be8a89860446009955a64fbb6fde443939bcf08ac28a3a2

SHA512
d49bd3937863ef9788e990a85e7d78ef15c6a1079b25e47892628ab5430ff5684f05071b9380d01d8dbb8174e4ca58c4b82fc27aeb76060a97a52285a5bf753f

Download Submit
memory/1680-3-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2336-29-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2612-34-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2612-39-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-35-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2768-43-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2768-42-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2768-41-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2768-38-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2768-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-47-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/3020-27-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3020-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3020-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads