ab6108a295f7953fa17156929cb5cfd446d0f781e3d12ac9c4ea3a2f47c24f81

Analysis

max time kernel
299s
max time network
307s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/08/2024, 16:41

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General

Target
Silver-Rat-Cracked-main/Fixer.exe
Size 45KB
Sample240813-t7lt5azarm
SHA256 1ef7600f30720e62238a269cb6a8dafe430deb6b79d277b6fe93057a2f6a9d38
MD5 c831d425ab837bd386162dc7cf7a21a8
SHA1 e89dda1a4f8460cb1a0b195dafa6ebfc9aa66821
SHA512 5823dc5bbd87d4bcd95a1b5815b0e39456ee585a906caae540a62d7a1b4d278c8cb2480f2b6f5bf060e93dbe2f965411e70175e29a2c727faaed1315a4b8ed48
SSDEEP 768:00dY/0/zmX2Z7QrgpzRULQeo9hsVz1QB6SPIK6Nrvrc/ME:0sM0ZnpzGs59m1QoO6NrA/ME
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

evasion execution

Malware Config

Signatures

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe
1900	attrib.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	Fixer.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	$77lololololololop.exe

Executes dropped EXE 1 IoCs

pid	Process
4004	$77lololololololop.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4592	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
28	discord.com
29	discord.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1552	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
464	schtasks.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
232	Fixer.exe
4592	powershell.exe
4592	powershell.exe
4592	powershell.exe
4004	$77lololololololop.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeBackupPrivilege	4644	vssvc.exe
Token: SeRestorePrivilege	4644	vssvc.exe
Token: SeAuditPrivilege	4644	vssvc.exe
Token: SeDebugPrivilege	232	Fixer.exe
Token: SeDebugPrivilege	4004	$77lololololololop.exe
Token: SeDebugPrivilege	4592	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4004	$77lololololololop.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 232 wrote to memory of 2556	232	Fixer.exe	90
PID 232 wrote to memory of 2556	232	Fixer.exe	90
PID 232 wrote to memory of 1900	232	Fixer.exe	92
PID 232 wrote to memory of 1900	232	Fixer.exe	92
PID 232 wrote to memory of 1580	232	Fixer.exe	100
PID 232 wrote to memory of 1580	232	Fixer.exe	100
PID 1580 wrote to memory of 1552	1580	cmd.exe	102
PID 1580 wrote to memory of 1552	1580	cmd.exe	102
PID 1580 wrote to memory of 4004	1580	cmd.exe	103
PID 1580 wrote to memory of 4004	1580	cmd.exe	103
PID 4004 wrote to memory of 3068	4004	$77lololololololop.exe	105
PID 4004 wrote to memory of 3068	4004	$77lololololololop.exe	105
PID 4004 wrote to memory of 464	4004	$77lololololololop.exe	107
PID 4004 wrote to memory of 464	4004	$77lololololololop.exe	107
PID 4004 wrote to memory of 32	4004	$77lololololololop.exe	109
PID 4004 wrote to memory of 32	4004	$77lololololololop.exe	109
PID 4004 wrote to memory of 4592	4004	$77lololololololop.exe	111
PID 4004 wrote to memory of 4592	4004	$77lololololololop.exe	111

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe
1900	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Silver-Rat-Cracked-main\Fixer.exe
"C:\Users\Admin\AppData\Local\Temp\Silver-Rat-Cracked-main\Fixer.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:2556
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd\$77lololololololop.exe"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:1900
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1552
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd\$77lololololololop.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd\$77lololololololop.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4004
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /query /TN $77lololololololop.exe
      4⤵
      PID:3068
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /Create /SC ONCE /TN "$77lololololololop.exe" /TR "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd\$77lololololololop.exe \"\$77lololololololop.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:464
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /query /TN $77lololololololop.exe
      4⤵
      PID:32
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionExtension exe,bat,dll,ps1;exit
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4592

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_ssoxcr01.gg3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ssoxcr01.gg3.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

tmpCB10.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp.bat
Size 197B
SHA256 08c88b5003a80d76f15d2889d6a79cc28ac7b22f27b20ef75015c66707021d3a
MD5 5bb16c4b993762b32afe0e4fda914699
SHA1 dd2ee97e208f4472a4a2060dc9a997f18e296019
SHA512 04a2c9de395dd44b6b7d3c2f551f8d5c8027e78e86ae4f5256d6ac4767606a9bb34d8cc971ec01a2ac4c1e3819d1b5e29ecef4d36d4f4285ec28592b01240f7a
MD5 SHA1 SHA512

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$77lololololololop.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\hgfdfd\$77lololololololop.exe
Size 45KB
SHA256 1ef7600f30720e62238a269cb6a8dafe430deb6b79d277b6fe93057a2f6a9d38
MD5 c831d425ab837bd386162dc7cf7a21a8
SHA1 e89dda1a4f8460cb1a0b195dafa6ebfc9aa66821
SHA512 5823dc5bbd87d4bcd95a1b5815b0e39456ee585a906caae540a62d7a1b4d278c8cb2480f2b6f5bf060e93dbe2f965411e70175e29a2c727faaed1315a4b8ed48
SSDEEP 768:00dY/0/zmX2Z7QrgpzRULQeo9hsVz1QB6SPIK6Nrvrc/ME:0sM0ZnpzGs59m1QoO6NrA/ME
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/232-1-0x0000000000520000-0x0000000000530000-memory.dmp

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memory/232-0-0x00007FFCA3DE3000-0x00007FFCA3DE5000-memory.dmp

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memory/232-2-0x00007FFCA3DE0000-0x00007FFCA48A1000-memory.dmp

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memory/232-8-0x00007FFCA3DE0000-0x00007FFCA48A1000-memory.dmp

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memory/4592-21-0x000002C3E07D0000-0x000002C3E07F2000-memory.dmp

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