umbral | 2592ac7a76bc435a210d3646794abf0a654937d0ce6553ebc14982480a169433

Analysis

max time kernel
95s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2024, 17:52

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General

Target

Pass 8864/Argon/Argon.exe
Size

229KB
MD5

0141daae60d7dd08a86fc4789cfb3689
SHA1

791d4a8f158313d355fad6dafa158407e80581bf
SHA256

d22b7b3b76496cda8bcad31dce4b2b3ab5ed3b91926d744982e492e5b39cf296
SHA512

74255f2cbb6345b4aefd7822587ca9503da2e49d41bb4306eca4e6ef96293b0f1c7e3173c8eb27aac54c1b0abebb8306d0e1d4b9aa824b153a8cd563a6640f9c
SSDEEP

6144:FloZM0rIkd8g+EtXHkv/iD4+2S86YXzQUp8aLLyuOb8e1msi8i:HoZDL+EP8+2S86YXzQUp8aLLylA

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/5068-1-0x000002F339F00000-0x000002F339F40000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2576	powershell.exe
4760	powershell.exe
3208	powershell.exe
1124	powershell.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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

Web Service

T1102

flow	ioc
24	discord.com
25	discord.com

Looks up external IP address via web service 1 IoCs

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

flow	ioc
9	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4596	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5068	Argon.exe
2576	powershell.exe
2576	powershell.exe
4760	powershell.exe
4760	powershell.exe
3208	powershell.exe
3208	powershell.exe
1820	powershell.exe
1820	powershell.exe
1124	powershell.exe
1124	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5068	Argon.exe
Token: SeIncreaseQuotaPrivilege	4808	wmic.exe
Token: SeSecurityPrivilege	4808	wmic.exe
Token: SeTakeOwnershipPrivilege	4808	wmic.exe
Token: SeLoadDriverPrivilege	4808	wmic.exe
Token: SeSystemProfilePrivilege	4808	wmic.exe
Token: SeSystemtimePrivilege	4808	wmic.exe
Token: SeProfSingleProcessPrivilege	4808	wmic.exe
Token: SeIncBasePriorityPrivilege	4808	wmic.exe
Token: SeCreatePagefilePrivilege	4808	wmic.exe
Token: SeBackupPrivilege	4808	wmic.exe
Token: SeRestorePrivilege	4808	wmic.exe
Token: SeShutdownPrivilege	4808	wmic.exe
Token: SeDebugPrivilege	4808	wmic.exe
Token: SeSystemEnvironmentPrivilege	4808	wmic.exe
Token: SeRemoteShutdownPrivilege	4808	wmic.exe
Token: SeUndockPrivilege	4808	wmic.exe
Token: SeManageVolumePrivilege	4808	wmic.exe
Token: 33	4808	wmic.exe
Token: 34	4808	wmic.exe
Token: 35	4808	wmic.exe
Token: 36	4808	wmic.exe
Token: SeIncreaseQuotaPrivilege	4808	wmic.exe
Token: SeSecurityPrivilege	4808	wmic.exe
Token: SeTakeOwnershipPrivilege	4808	wmic.exe
Token: SeLoadDriverPrivilege	4808	wmic.exe
Token: SeSystemProfilePrivilege	4808	wmic.exe
Token: SeSystemtimePrivilege	4808	wmic.exe
Token: SeProfSingleProcessPrivilege	4808	wmic.exe
Token: SeIncBasePriorityPrivilege	4808	wmic.exe
Token: SeCreatePagefilePrivilege	4808	wmic.exe
Token: SeBackupPrivilege	4808	wmic.exe
Token: SeRestorePrivilege	4808	wmic.exe
Token: SeShutdownPrivilege	4808	wmic.exe
Token: SeDebugPrivilege	4808	wmic.exe
Token: SeSystemEnvironmentPrivilege	4808	wmic.exe
Token: SeRemoteShutdownPrivilege	4808	wmic.exe
Token: SeUndockPrivilege	4808	wmic.exe
Token: SeManageVolumePrivilege	4808	wmic.exe
Token: 33	4808	wmic.exe
Token: 34	4808	wmic.exe
Token: 35	4808	wmic.exe
Token: 36	4808	wmic.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	4760	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeDebugPrivilege	1820	powershell.exe
Token: SeIncreaseQuotaPrivilege	4632	wmic.exe
Token: SeSecurityPrivilege	4632	wmic.exe
Token: SeTakeOwnershipPrivilege	4632	wmic.exe
Token: SeLoadDriverPrivilege	4632	wmic.exe
Token: SeSystemProfilePrivilege	4632	wmic.exe
Token: SeSystemtimePrivilege	4632	wmic.exe
Token: SeProfSingleProcessPrivilege	4632	wmic.exe
Token: SeIncBasePriorityPrivilege	4632	wmic.exe
Token: SeCreatePagefilePrivilege	4632	wmic.exe
Token: SeBackupPrivilege	4632	wmic.exe
Token: SeRestorePrivilege	4632	wmic.exe
Token: SeShutdownPrivilege	4632	wmic.exe
Token: SeDebugPrivilege	4632	wmic.exe
Token: SeSystemEnvironmentPrivilege	4632	wmic.exe
Token: SeRemoteShutdownPrivilege	4632	wmic.exe
Token: SeUndockPrivilege	4632	wmic.exe
Token: SeManageVolumePrivilege	4632	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 4808	5068	Argon.exe	83
PID 5068 wrote to memory of 4808	5068	Argon.exe	83
PID 5068 wrote to memory of 2576	5068	Argon.exe	86
PID 5068 wrote to memory of 2576	5068	Argon.exe	86
PID 5068 wrote to memory of 4760	5068	Argon.exe	88
PID 5068 wrote to memory of 4760	5068	Argon.exe	88
PID 5068 wrote to memory of 3208	5068	Argon.exe	90
PID 5068 wrote to memory of 3208	5068	Argon.exe	90
PID 5068 wrote to memory of 1820	5068	Argon.exe	92
PID 5068 wrote to memory of 1820	5068	Argon.exe	92
PID 5068 wrote to memory of 4632	5068	Argon.exe	94
PID 5068 wrote to memory of 4632	5068	Argon.exe	94
PID 5068 wrote to memory of 4388	5068	Argon.exe	97
PID 5068 wrote to memory of 4388	5068	Argon.exe	97
PID 5068 wrote to memory of 4668	5068	Argon.exe	99
PID 5068 wrote to memory of 4668	5068	Argon.exe	99
PID 5068 wrote to memory of 1124	5068	Argon.exe	101
PID 5068 wrote to memory of 1124	5068	Argon.exe	101
PID 5068 wrote to memory of 4596	5068	Argon.exe	103
PID 5068 wrote to memory of 4596	5068	Argon.exe	103

C:\Users\Admin\AppData\Local\Temp\Pass 8864\Argon\Argon.exe
"C:\Users\Admin\AppData\Local\Temp\Pass 8864\Argon\Argon.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5068
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Pass 8864\Argon\Argon.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2576
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4760
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1820
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4632
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4388
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4668
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1124
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
948B

MD5
74a6b79d36b4aae8b027a218bc6e1af7

SHA1
0350e46c1df6934903c4820a00b0bc4721779e5f

SHA256
60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

SHA512
60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
7511c81925750deb7ad1b9b80eea8a8d

SHA1
6ea759b3cbd243ae11435c6d6c5ced185eb01f49

SHA256
5b49723a7773f2fe1f6093236e7b9b2c546f0873635d02346cb39535811234fa

SHA512
5f7e69316d39525d137a7a833f8c746ceef8f1b2295348393fb3244cca8b962fbaad0f7da49da453fe97e2c49b1f41f06138111ac5ff97fdc33c300350ec3a1b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_objdeuey.qvn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2576-4-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download
memory/2576-10-0x000002D7F6CF0000-0x000002D7F6D12000-memory.dmp

Filesize
136KB

Download
memory/2576-15-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download
memory/2576-18-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download
memory/2576-3-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download
memory/5068-33-0x000002F33BCC0000-0x000002F33BD10000-memory.dmp

Filesize
320KB

Download
memory/5068-32-0x000002F3543E0000-0x000002F354456000-memory.dmp

Filesize
472KB

Download
memory/5068-34-0x000002F354460000-0x000002F35447E000-memory.dmp

Filesize
120KB

Download
memory/5068-1-0x000002F339F00000-0x000002F339F40000-memory.dmp

Filesize
256KB

Download
memory/5068-0-0x00007FFABFA63000-0x00007FFABFA65000-memory.dmp

Filesize
8KB

Download
memory/5068-71-0x000002F33BCB0000-0x000002F33BCBA000-memory.dmp

Filesize
40KB

Download
memory/5068-72-0x000002F3544A0000-0x000002F3544B2000-memory.dmp

Filesize
72KB

Download
memory/5068-2-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download
memory/5068-92-0x000002F3544E0000-0x000002F3545E2000-memory.dmp

Filesize
1.0MB

Download
memory/5068-93-0x00007FFABFA60000-0x00007FFAC0521000-memory.dmp

Filesize
10.8MB

Download