tofsee | b156f43683084b18e719dc72bdc0daead155fb3502eaeca19ed39f51bd8d00c4

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 19:38

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General

Target

a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
Size

110KB
MD5

a3c194b99325a6f9c69c4000d6bbd63d
SHA1

06cbdd6ce8b759f5cc2bca41ef8afdf9130c9116
SHA256

b156f43683084b18e719dc72bdc0daead155fb3502eaeca19ed39f51bd8d00c4
SHA512

08612b95baa0eb7ab2e18c071856bd77fa8f93e7b92a72c0097d5d6fbaa39326a4917a663d7d771640ff29b2b247b3512df96fd868223ff87427323da7b89905
SSDEEP

1536:uwGVxjjSw7LhpTkVC7Jw5PfN68Dl6tp8BLFRfcvsNlJc35C:zeVpmC7Jw5w8DM8pFSglJ2C

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
Tofsee family
tofsee

Deletes itself 1 IoCs

pid	Process
2808	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2348	rxrrdhc.exe
2800	rxrrdhc.exe

Loads dropped DLL 3 IoCs

pid	Process
2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
2348	rxrrdhc.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\rxrrdhc.exe\" /r"	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2348 set thread context of 2800	2348	rxrrdhc.exe	34
PID 2800 set thread context of 2700	2800	rxrrdhc.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rxrrdhc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rxrrdhc.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2112	2116	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2348	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	31
PID 2112 wrote to memory of 2348	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	31
PID 2112 wrote to memory of 2348	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	31
PID 2112 wrote to memory of 2348	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	31
PID 2112 wrote to memory of 2808	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	32
PID 2112 wrote to memory of 2808	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	32
PID 2112 wrote to memory of 2808	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	32
PID 2112 wrote to memory of 2808	2112	a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe	32
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2348 wrote to memory of 2800	2348	rxrrdhc.exe	34
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35
PID 2800 wrote to memory of 2700	2800	rxrrdhc.exe	35

C:\Users\Admin\AppData\Local\Temp\a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Users\Admin\AppData\Local\Temp\a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a3c194b99325a6f9c69c4000d6bbd63d_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Users\Admin\rxrrdhc.exe
    "C:\Users\Admin\rxrrdhc.exe" /r
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2348
  - - C:\Users\Admin\rxrrdhc.exe
      "C:\Users\Admin\rxrrdhc.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2800
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2700
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\2458.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2808

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\2458.bat

Filesize
117B

MD5
419bc6e4fc3c4bc8f6f5b8ed6857dfb6

SHA1
f07461fe2a4b843c93245342f5c1e5fcc1aa033a

SHA256
d9842bbd560b0ffdd65f9282b635ab49ee3bbdfd9edbf1c4b0795ba64a28cca8

SHA512
cf980253957ca3dc62f811a3c50728e30bf23b34c8470dba4ba946e69adcac4555ccda1e3b8b8b17dbc852069d38bdda56b2f574682f8c05bd033ac618c83318

Download Submit
\Users\Admin\rxrrdhc.exe

Filesize
110KB

MD5
a3c194b99325a6f9c69c4000d6bbd63d

SHA1
06cbdd6ce8b759f5cc2bca41ef8afdf9130c9116

SHA256
b156f43683084b18e719dc72bdc0daead155fb3502eaeca19ed39f51bd8d00c4

SHA512
08612b95baa0eb7ab2e18c071856bd77fa8f93e7b92a72c0097d5d6fbaa39326a4917a663d7d771640ff29b2b247b3512df96fd868223ff87427323da7b89905

Download Submit
memory/2112-9-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-36-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2112-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-17-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-15-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-25-0x0000000000260000-0x0000000000294000-memory.dmp

Filesize
208KB

Download
memory/2112-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-37-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2112-12-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2116-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2116-13-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2348-53-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2348-44-0x0000000000230000-0x0000000000264000-memory.dmp

Filesize
208KB

Download
memory/2700-68-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2700-64-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2700-71-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2700-58-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-72-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2700-60-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2700-73-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2800-42-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2800-56-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2800-55-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads