silverrat | 54deb76201d828c205a61f0b4e792ffa6c46aa617a4ae5802266d23da67e3799

Analysis

max time kernel
134s
max time network
140s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
13/02/2025, 13:42

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General

Target

config (3).exe
Size

41KB
MD5

82c63ff71723c1d7fd6d72ad6c38ca6f
SHA1

cebffc0a5145003e2d4ea9eeccf4911037505a36
SHA256

54deb76201d828c205a61f0b4e792ffa6c46aa617a4ae5802266d23da67e3799
SHA512

b780b1702b45d5f5c95f2c78e184ee9348ed667d686f1bdffd73c383d432ae44b6d228c3be0cb4e9c988940b1941fc342d063e826a53d757c98346f03e118c8d
SSDEEP

768:XE4YWnNFKnW36fEasNWZ1RWSktRRUEJ9PTCaECz1QB6STYQvMtZ+kU:XELFZsz3GU9rz1QowYQ0tZ+kU

Score

10^/10

silverrat discovery execution trojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

Mutex

lAxDBRhAFu

Attributes

certificate
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
decrypted_key
-|S.S.S|-
discord
https://discord.com/api/webhooks/1339510080353075250/uUezbpNaOpJBQxHG-wMK1O8oQ6C6KtHYoLNlAjVkTBgnTjAEFe2w9fCtkZw_RAo2vGIk
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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
35	944	Process not Found

Checks computer location settings 2 TTPs 1 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-1-5-21-2285147292-3350188650-383222722-1000\Control Panel\International\Geo\Nation	$77discord.exe.exe

Executes dropped EXE 1 IoCs

pid	Process
2432	$77discord.exe.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2064	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 64 IoCs

Web Service

T1102

flow	ioc
79	pastebin.com
118	pastebin.com
121	pastebin.com
34	pastebin.com
55	pastebin.com
59	pastebin.com
65	pastebin.com
70	pastebin.com
67	pastebin.com
74	pastebin.com
112	pastebin.com
115	pastebin.com
97	pastebin.com
103	pastebin.com
105	pastebin.com
19	pastebin.com
27	pastebin.com
84	pastebin.com
89	pastebin.com
94	pastebin.com
111	pastebin.com
50	pastebin.com
53	pastebin.com
85	pastebin.com
108	pastebin.com
109	pastebin.com
110	pastebin.com
113	pastebin.com
122	pastebin.com
23	pastebin.com
54	pastebin.com
66	pastebin.com
73	pastebin.com
92	pastebin.com
125	pastebin.com
72	pastebin.com
87	pastebin.com
99	pastebin.com
5	discord.com
8	pastebin.com
47	pastebin.com
56	pastebin.com
68	pastebin.com
104	pastebin.com
116	pastebin.com
127	pastebin.com
130	pastebin.com
131	pastebin.com
60	pastebin.com
107	pastebin.com
7	pastebin.com
24	pastebin.com
30	pastebin.com
51	pastebin.com
58	pastebin.com
117	pastebin.com
33	pastebin.com
80	pastebin.com
83	pastebin.com
100	pastebin.com
106	pastebin.com
98	pastebin.com
119	pastebin.com
46	pastebin.com

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 1 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	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
668	MicrosoftEdgeUpdate.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2032	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
4264	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
4236	config (3).exe
2064	powershell.exe
2064	powershell.exe
2432	$77discord.exe.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	4236	config (3).exe
Token: SeDebugPrivilege	2432	$77discord.exe.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeIncreaseQuotaPrivilege	2064	powershell.exe
Token: SeSecurityPrivilege	2064	powershell.exe
Token: SeTakeOwnershipPrivilege	2064	powershell.exe
Token: SeLoadDriverPrivilege	2064	powershell.exe
Token: SeSystemProfilePrivilege	2064	powershell.exe
Token: SeSystemtimePrivilege	2064	powershell.exe
Token: SeProfSingleProcessPrivilege	2064	powershell.exe
Token: SeIncBasePriorityPrivilege	2064	powershell.exe
Token: SeCreatePagefilePrivilege	2064	powershell.exe
Token: SeBackupPrivilege	2064	powershell.exe
Token: SeRestorePrivilege	2064	powershell.exe
Token: SeShutdownPrivilege	2064	powershell.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeSystemEnvironmentPrivilege	2064	powershell.exe
Token: SeRemoteShutdownPrivilege	2064	powershell.exe
Token: SeUndockPrivilege	2064	powershell.exe
Token: SeManageVolumePrivilege	2064	powershell.exe
Token: 33	2064	powershell.exe
Token: 34	2064	powershell.exe
Token: 35	2064	powershell.exe
Token: 36	2064	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2432	$77discord.exe.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 2396	4236	config (3).exe	86
PID 4236 wrote to memory of 2396	4236	config (3).exe	86
PID 2396 wrote to memory of 2032	2396	cmd.exe	88
PID 2396 wrote to memory of 2032	2396	cmd.exe	88
PID 2396 wrote to memory of 2432	2396	cmd.exe	89
PID 2396 wrote to memory of 2432	2396	cmd.exe	89
PID 2432 wrote to memory of 2064	2432	$77discord.exe.exe	90
PID 2432 wrote to memory of 2064	2432	$77discord.exe.exe	90
PID 2432 wrote to memory of 4264	2432	$77discord.exe.exe	91
PID 2432 wrote to memory of 4264	2432	$77discord.exe.exe	91

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

C:\Users\Admin\AppData\Local\Temp\config (3).exe
"C:\Users\Admin\AppData\Local\Temp\config (3).exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD801.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2032
- - C:\Users\Admin\discord\$77discord.exe.exe
    "C:\Users\Admin\discord\$77discord.exe.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:2432
  - - 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:2064
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc daily /tn "discord.exe_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:4264

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-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
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:668

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lnrij542.fdu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD801.tmp.bat

Filesize
150B

MD5
076de8ae6221a99b38b5d3e3dbe3167d

SHA1
8758cb9166cbb4c2b384757f56f4ac9f2df81cae

SHA256
1f8556fb45f3516f3d24c3c2ee17e07ef6d353997988ed1bbae47b39fbd7f2f7

SHA512
191e4f4c13e4df9376356d263ef1d09f92ccec3db9186094176b7c190220d8c269a6a8132cbb020ec7b198c22c447d3723fc9b3ed42226a36d042b10a8d354be

Download Submit
C:\Users\Admin\discord\$77discord.exe.exe

Filesize
41KB

MD5
82c63ff71723c1d7fd6d72ad6c38ca6f

SHA1
cebffc0a5145003e2d4ea9eeccf4911037505a36

SHA256
54deb76201d828c205a61f0b4e792ffa6c46aa617a4ae5802266d23da67e3799

SHA512
b780b1702b45d5f5c95f2c78e184ee9348ed667d686f1bdffd73c383d432ae44b6d228c3be0cb4e9c988940b1941fc342d063e826a53d757c98346f03e118c8d

Download Submit
memory/2064-19-0x0000022871410000-0x0000022871432000-memory.dmp

Filesize
136KB

Download
memory/2432-12-0x00007FFB7CC50000-0x00007FFB7D712000-memory.dmp

Filesize
10.8MB

Download
memory/2432-13-0x00007FFB7CC50000-0x00007FFB7D712000-memory.dmp

Filesize
10.8MB

Download
memory/2432-27-0x00007FFB7CC50000-0x00007FFB7D712000-memory.dmp

Filesize
10.8MB

Download
memory/4236-0-0x00007FFB7CC53000-0x00007FFB7CC55000-memory.dmp

Filesize
8KB

Download
memory/4236-1-0x0000000000590000-0x000000000059E000-memory.dmp

Filesize
56KB

Download
memory/4236-2-0x00007FFB7CC50000-0x00007FFB7D712000-memory.dmp

Filesize
10.8MB

Download
memory/4236-8-0x00007FFB7CC50000-0x00007FFB7D712000-memory.dmp

Filesize
10.8MB

Download