silverrat | 32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d

Analysis

max time kernel
139s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25/03/2025, 19:44

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General

Target

32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
Size

43KB
MD5

f8c2396649f5f0f8218c196fc124c812
SHA1

7260118bbc05571764778bb8d3b822266129e341
SHA256

32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d
SHA512

b0def3aa05b44de8725050d04ff9ca819aabee0208ca3a4b4785f9e516ac8f519cc21a410eb7730e24ff1ad417feac9be7d01945e3b009f74453627da432890f
SSDEEP

768:XC2Aanfbl+pjJioUmdGP3Z56P6RUkq9XpJz1QB6Sd12OvTnI5Gi:Xdnfx+pjYPZgCGkq9n1QousObnI0i

Score

10^/10

silverrat defense_evasion execution persistence trojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

second-trap.gl.at.ply.gg:63877

Mutex

lAxDBRhAFu

Attributes

certificate
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
decrypted_key
-|S.S.S|-
discord
https://discord.com/api/webhooks/1353847374845317130/hhejEfgnzhFzjjLVt0pwxjVIRFLoHM1GhiYovg1u1EG4R-VsMUoWDsxVlNEjKru71Ggz
key
yy6zDjAUmbB09pKvo5Hhug==
key_x509
b0FGeVZNcFRMWVloVHR6Z0VESU5RdlpZUmxZbUFE
payload_url
https://g.top4top.io/p_2522c7w8u1.png
reconnect_delay
4
server_signature
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

Signatures

SilverRat
SilverRat is trojan written in C#.
trojan silverrat
Silverrat family
silverrat

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2904	attrib.exe
2804	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
1992	Service Host.exe

Loads dropped DLL 1 IoCs

pid	Process
2516	cmd.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "\"C:\\Users\\Admin\\service\\Service Host.exe\""	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1752	powershell.exe

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

Web Service

T1102

flow	ioc
4	discord.com
5	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

defense_evasion

pid	Process
2704	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
3008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
1752	powershell.exe
1992	Service Host.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
Token: SeDebugPrivilege	1992	Service Host.exe
Token: SeDebugPrivilege	1752	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	Service Host.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 2904	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	30
PID 1180 wrote to memory of 2904	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	30
PID 1180 wrote to memory of 2904	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	30
PID 1180 wrote to memory of 2804	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	32
PID 1180 wrote to memory of 2804	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	32
PID 1180 wrote to memory of 2804	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	32
PID 1180 wrote to memory of 2516	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	34
PID 1180 wrote to memory of 2516	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	34
PID 1180 wrote to memory of 2516	1180	32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe	34
PID 2516 wrote to memory of 2704	2516	cmd.exe	36
PID 2516 wrote to memory of 2704	2516	cmd.exe	36
PID 2516 wrote to memory of 2704	2516	cmd.exe	36
PID 2516 wrote to memory of 1992	2516	cmd.exe	37
PID 2516 wrote to memory of 1992	2516	cmd.exe	37
PID 2516 wrote to memory of 1992	2516	cmd.exe	37
PID 1992 wrote to memory of 1224	1992	Service Host.exe	38
PID 1992 wrote to memory of 1224	1992	Service Host.exe	38
PID 1992 wrote to memory of 1224	1992	Service Host.exe	38
PID 1992 wrote to memory of 3008	1992	Service Host.exe	40
PID 1992 wrote to memory of 3008	1992	Service Host.exe	40
PID 1992 wrote to memory of 3008	1992	Service Host.exe	40
PID 1992 wrote to memory of 2452	1992	Service Host.exe	42
PID 1992 wrote to memory of 2452	1992	Service Host.exe	42
PID 1992 wrote to memory of 2452	1992	Service Host.exe	42
PID 1992 wrote to memory of 1752	1992	Service Host.exe	44
PID 1992 wrote to memory of 1752	1992	Service Host.exe	44
PID 1992 wrote to memory of 1752	1992	Service Host.exe	44

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

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2904	attrib.exe
2804	attrib.exe

C:\Users\Admin\AppData\Local\Temp\32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe
"C:\Users\Admin\AppData\Local\Temp\32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\service"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:2904
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\service\Service Host.exe"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:2804
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7ACB.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2704
- - C:\Users\Admin\service\Service Host.exe
    "C:\Users\Admin\service\Service Host.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Windows\system32\schtasks.exe
      "schtasks.exe" /query /TN Service Host.exe
      4⤵
      PID:1224
  - - C:\Windows\system32\schtasks.exe
      "schtasks.exe" /Create /SC ONCE /TN "Service Host.exe" /TR "C:\Users\Admin\service\Service Host.exe \"\Service Host.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3008
  - - C:\Windows\system32\schtasks.exe
      "schtasks.exe" /query /TN Service Host.exe
      4⤵
      PID:2452
  - - 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:1752

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7ACB.tmp.bat

Filesize
148B

MD5
742e08bec884e728d29c38132d427016

SHA1
ef635afb812e6919ae632583e2e5d4e7d5f7ecf6

SHA256
0b7f3201bf71271a54f8a199ec4ba1d6904fdd45ed4d6e0ea96c655dc56725b4

SHA512
e031bc0b8e5b22215cba4a70f225a280b42fe7d0d026be475376cecb9c0938b88c1d133484be9670ec2771ac6ef858ea842d135f969a5862f5060d52e22a340a

Download Submit
\Users\Admin\service\Service Host.exe

Filesize
43KB

MD5
f8c2396649f5f0f8218c196fc124c812

SHA1
7260118bbc05571764778bb8d3b822266129e341

SHA256
32abf0a215af4198e9c1bad2c9ec0e095c8b6fc83d4b276b0ce03806ced0e64d

SHA512
b0def3aa05b44de8725050d04ff9ca819aabee0208ca3a4b4785f9e516ac8f519cc21a410eb7730e24ff1ad417feac9be7d01945e3b009f74453627da432890f

Download Submit
memory/1180-0-0x000007FEF5963000-0x000007FEF5964000-memory.dmp

Filesize
4KB

Download
memory/1180-1-0x000000013FF10000-0x000000013FF20000-memory.dmp

Filesize
64KB

Download
memory/1180-2-0x000007FEF5960000-0x000007FEF634C000-memory.dmp

Filesize
9.9MB

Download
memory/1180-3-0x000007FEF5963000-0x000007FEF5964000-memory.dmp

Filesize
4KB

Download
memory/1180-4-0x000007FEF5960000-0x000007FEF634C000-memory.dmp

Filesize
9.9MB

Download
memory/1180-14-0x000007FEF5960000-0x000007FEF634C000-memory.dmp

Filesize
9.9MB

Download
memory/1752-24-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/1752-25-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download
memory/1992-19-0x000000013FEB0000-0x000000013FEC0000-memory.dmp

Filesize
64KB

Download