tofsee | b88007fbe1d0fb4751db6954ae6990a0c4c3cb52c1f896ce0ad7b8776cdc3c53

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
08-09-2024 07:45

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General

Target

d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
Size

106KB
MD5

d3df5dd279badd783ccc9755d131bf8b
SHA1

adb71b13c9c6780a1aad45ddf8f427564e2ed329
SHA256

b88007fbe1d0fb4751db6954ae6990a0c4c3cb52c1f896ce0ad7b8776cdc3c53
SHA512

85823c21ed224f3c1f7ec795cf70b7829a63864cbd8205f8703036f20ae6929b8b12e8017ffd01b17d8d1aaecd75e9082433e826d5bcce392c55ce052b6e7f34
SSDEEP

1536:KwGVxjjSw7LhpTkVC2JH5ppXSdv1oyotxGcC8HVXSC/jPQfLy2nlJX2jfVTQGTg:XeVpmC2JH5p01KjbHhjj2nTX27VsKg

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

94.75.255.140

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

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

Deletes itself 1 IoCs

pid	Process
2636	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
3036	renavi.exe
3052	renavi.exe

Loads dropped DLL 3 IoCs

pid	Process
2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
3036	renavi.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\renavi.exe\" /r"	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 3036 set thread context of 3052	3036	renavi.exe	34
PID 3052 set thread context of 780	3052	renavi.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	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	renavi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	renavi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3036	renavi.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2968 wrote to memory of 2036	2968	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	30
PID 2036 wrote to memory of 3036	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	31
PID 2036 wrote to memory of 3036	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	31
PID 2036 wrote to memory of 3036	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	31
PID 2036 wrote to memory of 3036	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	31
PID 2036 wrote to memory of 2636	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	32
PID 2036 wrote to memory of 2636	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	32
PID 2036 wrote to memory of 2636	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	32
PID 2036 wrote to memory of 2636	2036	d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe	32
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3036 wrote to memory of 3052	3036	renavi.exe	34
PID 3052 wrote to memory of 780	3052	renavi.exe	35
PID 3052 wrote to memory of 780	3052	renavi.exe	35
PID 3052 wrote to memory of 780	3052	renavi.exe	35
PID 3052 wrote to memory of 780	3052	renavi.exe	35
PID 3052 wrote to memory of 780	3052	renavi.exe	35
PID 3052 wrote to memory of 780	3052	renavi.exe	35

C:\Users\Admin\AppData\Local\Temp\d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d3df5dd279badd783ccc9755d131bf8b_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Users\Admin\renavi.exe
    "C:\Users\Admin\renavi.exe" /r
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:3036
  - - C:\Users\Admin\renavi.exe
      "C:\Users\Admin\renavi.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3052
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:780
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\3136.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2636

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\3136.bat

Filesize
117B

MD5
246977d8632ca5fa4dd5c9373eeebdd5

SHA1
b72ab557c16b71b6c57d47c4df9ee9c06eef31b0

SHA256
87bc41cbaa79dd450a7c8487604e75ec312e7232ce2e4cff693b728f25f56a6f

SHA512
21d610fb2bf1550db2dc778d25ab7315b9f930f58e3a2bce6f258d319295c9e6f265882ebcbeca871c6e57c8d5552f188f1a34673b21c41a1a40fb48dfc261e1

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

Filesize
106KB

MD5
d3df5dd279badd783ccc9755d131bf8b

SHA1
adb71b13c9c6780a1aad45ddf8f427564e2ed329

SHA256
b88007fbe1d0fb4751db6954ae6990a0c4c3cb52c1f896ce0ad7b8776cdc3c53

SHA512
85823c21ed224f3c1f7ec795cf70b7829a63864cbd8205f8703036f20ae6929b8b12e8017ffd01b17d8d1aaecd75e9082433e826d5bcce392c55ce052b6e7f34

Download Submit
memory/780-66-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/780-64-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/780-63-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/780-59-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/780-58-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/780-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/780-53-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2036-2-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-32-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-14-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-12-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-10-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2036-8-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3052-48-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3052-57-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3052-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads