tofsee | ad6bf90c838886a6d506e64d12cbe7682a160e6fadc0761b32a4e0de447fdd78

Analysis

max time kernel
92s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 01:32

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General

Target

11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe
Size

163KB
MD5

11481ac300ba2491a2d47f1afc95baca
SHA1

8521eea3efe6476bd4c8a6019caf09a8da211192
SHA256

ad6bf90c838886a6d506e64d12cbe7682a160e6fadc0761b32a4e0de447fdd78
SHA512

ca94362303dd3b1ee905bc62681b88d5d6ef9fe76e41c55473a7423a7b42ddf6bb8c4a028ea70777ea79868b58f0648ec01d61d16df2692f665b20aa6e08e0c0
SSDEEP

1536:IJLacfLKE+gA1PPqW/Pi4x4t1mMOPLgj5l0QD5aXBK+cMUtoh5z1PHVSk5WZHN7Y:/2Kqx4x4t11gMtlYXsfMUS1lUyHl

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

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1828	wffft.exe
3896	wffft.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\wffft.exe\" /r"	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1220 set thread context of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1828 set thread context of 3896	1828	wffft.exe	90
PID 3896 set thread context of 4476	3896	wffft.exe	91

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
5024	4476	WerFault.exe	91

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	wffft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wffft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 1220 wrote to memory of 3960	1220	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	82
PID 3960 wrote to memory of 1828	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	83
PID 3960 wrote to memory of 1828	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	83
PID 3960 wrote to memory of 1828	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	83
PID 3960 wrote to memory of 3412	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	84
PID 3960 wrote to memory of 3412	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	84
PID 3960 wrote to memory of 3412	3960	11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe	84
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 1828 wrote to memory of 3896	1828	wffft.exe	90
PID 3896 wrote to memory of 4476	3896	wffft.exe	91
PID 3896 wrote to memory of 4476	3896	wffft.exe	91
PID 3896 wrote to memory of 4476	3896	wffft.exe	91
PID 3896 wrote to memory of 4476	3896	wffft.exe	91
PID 3896 wrote to memory of 4476	3896	wffft.exe	91

C:\Users\Admin\AppData\Local\Temp\11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\11481ac300ba2491a2d47f1afc95baca_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3960
- - C:\Users\Admin\wffft.exe
    "C:\Users\Admin\wffft.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - C:\Users\Admin\wffft.exe
      "C:\Users\Admin\wffft.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3896
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4476
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 324
        6⤵
        Program crash
        
        PID:5024
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5631.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4476 -ip 4476
1⤵
PID:4164

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\5631.bat

Filesize
117B

MD5
a5908e836958bb9b14506d16e819b5ff

SHA1
c79afed7ad8c8bf3450a1209ec08f0c65c073902

SHA256
a6185fa819fbe64b234c1a1d9be8eb083904f967d5df545432108683a1e5a8fc

SHA512
c7018b99e1db89e417bcbb070cce656f23cc93e36438df9e89adbb5465f3fb4cd9a8741bc7f56f7aa4459325eb1d181825790d7c543d70e53b16c5244378fddb

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

Filesize
163KB

MD5
11481ac300ba2491a2d47f1afc95baca

SHA1
8521eea3efe6476bd4c8a6019caf09a8da211192

SHA256
ad6bf90c838886a6d506e64d12cbe7682a160e6fadc0761b32a4e0de447fdd78

SHA512
ca94362303dd3b1ee905bc62681b88d5d6ef9fe76e41c55473a7423a7b42ddf6bb8c4a028ea70777ea79868b58f0648ec01d61d16df2692f665b20aa6e08e0c0

Download Submit
memory/3896-17-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3960-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3960-2-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3960-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4476-18-0x0000000000A00000-0x0000000000A1D000-memory.dmp

Filesize
116KB

Download
memory/4476-25-0x0000000000A00000-0x0000000000A1D000-memory.dmp

Filesize
116KB

Download
memory/4476-28-0x0000000000A00000-0x0000000000A1D000-memory.dmp

Filesize
116KB

Download
memory/4476-29-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download
memory/4476-30-0x0000000000A00000-0x0000000000A1D000-memory.dmp

Filesize
116KB

Download
memory/4476-31-0x0000000000A00000-0x0000000000A1D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads