tofsee | 44096f069d68b101bae728c5c3d9b025245962ace023753b1aaa761aff80b880

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 06:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe
Size

169KB
MD5

dde7cbf86f417af475da245ca768b89b
SHA1

697f90b33dd16a9d349824724d35f2ff56fe3a54
SHA256

44096f069d68b101bae728c5c3d9b025245962ace023753b1aaa761aff80b880
SHA512

99a80b453a9d52f2c69fb4752a451361e9791e8bc615c6327a1d3ccd53c535ee8c6cf281839ba6cf6b736af4a2b93da6d9a54552387d9e3cdd80e36c51cee28e
SSDEEP

3072:UNnz4Uk1hIMY8JCLiwMiCQcLUZtFscyB+uSJJtqbqSy1mRsn:UNXkJY8JGCbZ9B+uGi4mRA

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

64.20.54.234

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3404	msopn.exe
4944	msopn.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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\msopn.exe\" /r"	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3592 set thread context of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3404 set thread context of 4944	3404	msopn.exe	87
PID 4944 set thread context of 396	4944	msopn.exe	88

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
3216	396	WerFault.exe	88

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msopn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msopn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 3592 wrote to memory of 2020	3592	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	85
PID 2020 wrote to memory of 3404	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	86
PID 2020 wrote to memory of 3404	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	86
PID 2020 wrote to memory of 3404	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	86
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 3404 wrote to memory of 4944	3404	msopn.exe	87
PID 4944 wrote to memory of 396	4944	msopn.exe	88
PID 4944 wrote to memory of 396	4944	msopn.exe	88
PID 4944 wrote to memory of 396	4944	msopn.exe	88
PID 4944 wrote to memory of 396	4944	msopn.exe	88
PID 4944 wrote to memory of 396	4944	msopn.exe	88
PID 2020 wrote to memory of 4780	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	93
PID 2020 wrote to memory of 4780	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	93
PID 2020 wrote to memory of 4780	2020	dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Users\Admin\AppData\Local\Temp\dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\dde7cbf86f417af475da245ca768b89b_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Users\Admin\msopn.exe
    "C:\Users\Admin\msopn.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3404
  - - C:\Users\Admin\msopn.exe
      "C:\Users\Admin\msopn.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4944
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:396
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 320
        6⤵
        Program crash
        
        PID:3216
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8314.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 396 -ip 396
1⤵
PID:3940

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\8314.bat

Filesize
117B

MD5
d8a1ccde1e5a8a2f0bc8c55f0f92a32f

SHA1
7f642679644190656a140576cfd4d01f3ad22c76

SHA256
3a94ea1090534686c399a5f7676bc0d8cd5856c9a98625cfb2932c8e88d44d9c

SHA512
78044bc9e5ad5c8b1f8eec58c797c2d5dbb7ea22b7e8182fd8fd913180b66bc4006443307dfc7e7933fb8f33c73a51e186e77e92eaad10ee89db00205c6dc697

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

Filesize
169KB

MD5
dde7cbf86f417af475da245ca768b89b

SHA1
697f90b33dd16a9d349824724d35f2ff56fe3a54

SHA256
44096f069d68b101bae728c5c3d9b025245962ace023753b1aaa761aff80b880

SHA512
99a80b453a9d52f2c69fb4752a451361e9791e8bc615c6327a1d3ccd53c535ee8c6cf281839ba6cf6b736af4a2b93da6d9a54552387d9e3cdd80e36c51cee28e

Download Submit
memory/396-35-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/396-34-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/396-33-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

Filesize
4KB

Download
memory/396-32-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/396-22-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/396-15-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/2020-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2020-3-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2020-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3404-18-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3592-0-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3592-4-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4944-14-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads