tofsee | 40b07ee803edaa7b70b06ac159aa94770c3490d7b5838074eb04fbbe8062ab29

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 01:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
Size

188KB
MD5

12a217a7761bdafc7064f38fe7951c69
SHA1

2944bc0be74f3e4773d07c06a278f927aa3bec0d
SHA256

40b07ee803edaa7b70b06ac159aa94770c3490d7b5838074eb04fbbe8062ab29
SHA512

606551b9cdeb075da710f96f6887329d0ec826640706c6b97997723c50b6aeb68fba87b78cebbb238c43fd5166879ea11890937772a2b7c6b7b0b3b279270629
SSDEEP

3072:io+8CNt9mSGzkXoDTYjoJ4nQuCs7BOGlW8M/gt3stSMm8:i1z+TYjCevCsd3M8M/Q3sFm8

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

91.121.4.118

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
2644	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2524	ksebyx.exe
1716	ksebyx.exe

Loads dropped DLL 3 IoCs

pid	Process
2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
2524	ksebyx.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\ksebyx.exe\" /r"	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2092 set thread context of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2524 set thread context of 1716	2524	ksebyx.exe	32
PID 1716 set thread context of 2892	1716	ksebyx.exe	33

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	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ksebyx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ksebyx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2092 wrote to memory of 2400	2092	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	30
PID 2400 wrote to memory of 2524	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	31
PID 2400 wrote to memory of 2524	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	31
PID 2400 wrote to memory of 2524	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	31
PID 2400 wrote to memory of 2524	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	31
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 2524 wrote to memory of 1716	2524	ksebyx.exe	32
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 1716 wrote to memory of 2892	1716	ksebyx.exe	33
PID 2400 wrote to memory of 2644	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	34
PID 2400 wrote to memory of 2644	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	34
PID 2400 wrote to memory of 2644	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	34
PID 2400 wrote to memory of 2644	2400	JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12a217a7761bdafc7064f38fe7951c69.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Users\Admin\ksebyx.exe
    "C:\Users\Admin\ksebyx.exe" /r
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2524
  - - C:\Users\Admin\ksebyx.exe
      "C:\Users\Admin\ksebyx.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1716
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\7721.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2644

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\7721.bat

Filesize
117B

MD5
dbe8f4e51df8776502e347a9dbaff4e7

SHA1
48cb46db5b67bc80e5428672bdcf05c40b44918b

SHA256
4af7eabcacfca3f644642cbd7446f1867dce570a13271546b9bf1a88761078f2

SHA512
e58ff84fb9e0d2cc3f480fa6d9fb113bcaecf1015888455fcd32fc9820c1c6f70e6d5f191aa58bd4dc7244b2e29d1b3779dc47895e122b7713227b32b3da7ebf

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

Filesize
188KB

MD5
12a217a7761bdafc7064f38fe7951c69

SHA1
2944bc0be74f3e4773d07c06a278f927aa3bec0d

SHA256
40b07ee803edaa7b70b06ac159aa94770c3490d7b5838074eb04fbbe8062ab29

SHA512
606551b9cdeb075da710f96f6887329d0ec826640706c6b97997723c50b6aeb68fba87b78cebbb238c43fd5166879ea11890937772a2b7c6b7b0b3b279270629

Download Submit
memory/1716-43-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-68-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-2-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2892-45-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-56-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2892-57-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2892-58-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2892-52-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2892-47-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2892-70-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads