Overview

overview

10

Static

static

10

09fe7735f7...8a.exe

windows7-x64

10

09fe7735f7...8a.exe

windows10-2004-x64

10

0a08857b3b...19.vbs

windows7-x64

10

0a08857b3b...19.vbs

windows10-2004-x64

10

0a92b6b6c9...d0.exe

windows7-x64

10

0a92b6b6c9...d0.exe

windows10-2004-x64

10

0b1f6297e8...e6.exe

windows7-x64

10

0b1f6297e8...e6.exe

windows10-2004-x64

0b4ffb13a4...aa.exe

windows7-x64

10

0b4ffb13a4...aa.exe

windows10-2004-x64

10

0b9a6ed57e...55.exe

windows7-x64

7

0b9a6ed57e...55.exe

windows10-2004-x64

7

0be395d43c...ca.exe

windows7-x64

10

0be395d43c...ca.exe

windows10-2004-x64

7

0c046f07cd...89.exe

windows7-x64

10

0c046f07cd...89.exe

windows10-2004-x64

10

0c1e5acd77...53.exe

windows7-x64

10

0c1e5acd77...53.exe

windows10-2004-x64

10

0d825ad1df...37.exe

windows7-x64

10

0d825ad1df...37.exe

windows10-2004-x64

10

0db3c21dec...f9.exe

windows7-x64

10

0db3c21dec...f9.exe

windows10-2004-x64

10

0de875f11e...e9.exe

windows7-x64

10

0de875f11e...e9.exe

windows10-2004-x64

0e3bb95b7b...77.exe

windows7-x64

10

0e3bb95b7b...77.exe

windows10-2004-x64

10

0edd5342b1...6d.exe

windows7-x64

3

0edd5342b1...6d.exe

windows10-2004-x64

0f4450a6b2...b6.exe

windows7-x64

10

0f4450a6b2...b6.exe

windows10-2004-x64

10

10758789ca...d1.exe

windows7-x64

10

10758789ca...d1.exe

windows10-2004-x64

10

Resubmissions

10-11-2024 21:28

241110-1bhk6avgrr 10

Analysis

  • max time kernel
    1799s
  • max time network
    1823s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-11-2024 02:47

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89.exe

  • Size

    229KB

  • MD5

    f8c0a565c50b57b8ebc9c280007312ec

  • SHA1

    e0a90e6d88b92002c7b77dc8298cd1b98f89d99e

  • SHA256

    0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89

  • SHA512

    483f609a16c268bfb7626bd6dc7826d8822671342cad1ebdab64115863efe7a75dd13ce6ed31b3c89f691644b2a5d719d43f47994769db2c5753e34bdaedf185

  • SSDEEP

    6144:wf6fRxdLyrc/quEJfylTp45uuo9qcOY7Mnh:wf6fRbGcSuEJfylTp4YuUf

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Signatures

  • Tofsee

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

    trojantofsee
  • Tofsee family
    tofsee
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • Creates new service(s) 2 TTPs
    persistenceexecution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies data under HKEY_USERS 20 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89.exe
    "C:\Users\Admin\AppData\Local\Temp\0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2712
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ikxpzg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3048
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xdqlelyt.exe" C:\Windows\SysWOW64\ikxpzg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2756
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ikxpzg binPath= "C:\Windows\SysWOW64\ikxpzg\xdqlelyt.exe /d\"C:\Users\Admin\AppData\Local\Temp\0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2592
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ikxpzg "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2640
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ikxpzg
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2328
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:1496
  • C:\Windows\SysWOW64\ikxpzg\xdqlelyt.exe
    C:\Windows\SysWOW64\ikxpzg\xdqlelyt.exe /d"C:\Users\Admin\AppData\Local\Temp\0c046f07cd96f008a224dc272c32b52af4611cd1852d38db9737abbe3fcf9e89.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:1492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\xdqlelyt.exe
    Filesize

    12.0MB

    MD5

    142123bfcd0f2e954461c7ab4bd0a84d

    SHA1

    984978fc9071fd8dbc815ad8a2d4cf860fd984ca

    SHA256

    121dbbe32dfd85b8651c3560ee44c840ae0179cc21d32bf408be1d779cda11fa

    SHA512

    ab2423259d1f6952c6ac9424e8ce759be8e23c60485382c5113f6ac06f97ab51aaa80368a20311a1b7a1fe58405be6e85ea8934714e36573ad825aead362d2bc

    Download Submit

  • C:\Windows\SysWOW64\config\systemprofile:.repos
    Filesize

    1.2MB

    MD5

    cde25c4f4f476cf8d3be007190f5f111

    SHA1

    27f45bacc46933f60e332b252e2565188de8759a

    SHA256

    bb3dea419fcc26a309cd563584fbfe2134cd14a8a851c1126fc81779669e9e51

    SHA512

    bb4a04e953f37ac44f509fbc0cbb7b719b964f18311158e20bc3154029cb308613f66ab3640c5fdd2f8cf46e8628f60b3f8026fccb6e99e673d9a87c5ae16e70

    Download Submit

  • memory/1492-44-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-54-0x0000000005760000-0x0000000005B6B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/1492-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1492-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1492-8-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1492-23-0x0000000001C00000-0x0000000001E0F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/1492-55-0x0000000000210000-0x0000000000217000-memory.dmp

    Filesize

    28KB

    Download

  • memory/1492-51-0x0000000005760000-0x0000000005B6B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/1492-24-0x0000000000190000-0x0000000000196000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1492-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1492-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1492-20-0x0000000001C00000-0x0000000001E0F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/1492-27-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-34-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-33-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-32-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-31-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-30-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-46-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-47-0x0000000000200000-0x0000000000205000-memory.dmp

    Filesize

    20KB

    Download

  • memory/1492-41-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-35-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-37-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-39-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-38-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-36-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-40-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-42-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-50-0x0000000000200000-0x0000000000205000-memory.dmp

    Filesize

    20KB

    Download

  • memory/1492-43-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1492-45-0x00000000001F0000-0x0000000000200000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2256-13-0x0000000000400000-0x0000000000597000-memory.dmp

    Filesize

    1.6MB

    Download

  • memory/2712-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2712-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2712-14-0x0000000000400000-0x0000000000597000-memory.dmp

    Filesize

    1.6MB

    Download

  • memory/2712-16-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2712-15-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2712-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

    Download