tofsee | 48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 06:28

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General

Target

bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
Size

78KB
MD5

bc1883b07b47423bd30645e54db4775c
SHA1

2b96b8027083c5c44189ac03bafcc71df82a8ee1
SHA256

48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8
SHA512

6185931b4a06cd38dfaaecd4a60160bf7b07fa9bec3a1a2da0a1bbcda5ad7cf7f78b1a55810e065a1c6f29c7b5bbd64d584172e3d7386f6195ba1c8b4b28a85e
SSDEEP

1536:Kgzoa0BgdObHOjEb+96omECPxuXfDZEEkU3rHt81Hqf:Lzoa0yQnOhmEHCEkgry1H

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

185.4.227.76

188.165.132.183

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
892	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2284	ffonzlya.exe
1580	ffonzlya.exe

Loads dropped DLL 3 IoCs

pid	Process
2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
2284	ffonzlya.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\ffonzlya.exe\""	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2284 set thread context of 1580	2284	ffonzlya.exe	32
PID 1580 set thread context of 2724	1580	ffonzlya.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	ffonzlya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffonzlya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2392	2068	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	30
PID 2392 wrote to memory of 2284	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	31
PID 2392 wrote to memory of 2284	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	31
PID 2392 wrote to memory of 2284	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	31
PID 2392 wrote to memory of 2284	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	31
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 2284 wrote to memory of 1580	2284	ffonzlya.exe	32
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 1580 wrote to memory of 2724	1580	ffonzlya.exe	33
PID 2392 wrote to memory of 892	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	34
PID 2392 wrote to memory of 892	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	34
PID 2392 wrote to memory of 892	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	34
PID 2392 wrote to memory of 892	2392	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	34

C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Users\Admin\ffonzlya.exe
    "C:\Users\Admin\ffonzlya.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2284
  - - C:\Users\Admin\ffonzlya.exe
      "C:\Users\Admin\ffonzlya.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1580
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2724
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\8268.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:892

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\8268.bat

Filesize
266B

MD5
3555ddebfaae7d4d5c8ce271a43a75bb

SHA1
2a2312b075f2b2b9e78d2b562b03684c46d48270

SHA256
bee61b88de6eaca4faee2d02d8a53c9686283a3c078b7a1c8c58148a498dae69

SHA512
f8ddb058cb3b4bd98dee168185ec5683e6c80f277ecfed10314f4f53609511b5571c1d9eddf57355bdae59fc5d2b03408d05d38c402e5796302cc6596093a549

Download Submit
\Users\Admin\ffonzlya.exe

Filesize
78KB

MD5
bc1883b07b47423bd30645e54db4775c

SHA1
2b96b8027083c5c44189ac03bafcc71df82a8ee1

SHA256
48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8

SHA512
6185931b4a06cd38dfaaecd4a60160bf7b07fa9bec3a1a2da0a1bbcda5ad7cf7f78b1a55810e065a1c6f29c7b5bbd64d584172e3d7386f6195ba1c8b4b28a85e

Download Submit
memory/1580-51-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2068-79-0x0000000000330000-0x000000000034A000-memory.dmp

Filesize
104KB

Download
memory/2068-16-0x0000000000330000-0x000000000034A000-memory.dmp

Filesize
104KB

Download
memory/2068-15-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2068-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2284-45-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2392-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2392-18-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-3-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-20-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-7-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-9-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-49-0x00000000003B0000-0x00000000003CA000-memory.dmp

Filesize
104KB

Download
memory/2392-47-0x00000000003B0000-0x00000000003CA000-memory.dmp

Filesize
104KB

Download
memory/2392-13-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-1-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-76-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2724-55-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2724-66-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2724-65-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2724-64-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2724-78-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2724-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads