umbral | 5a72cef1aee6243c81a9ec709be05ef1d443f1431ba635392e88fe761708ed42

Analysis

max time kernel
6s
max time network
10s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
12-06-2024 22:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe
Size

229KB
MD5

1adeea63d576dea9add98e01e9fe78b4
SHA1

8f754fd661d9ce2e9e9a7278b4dd7096b13fc585
SHA256

5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84
SHA512

0ba3c5555273a15c5406f0bd1b5f1a3888814bdbb4130f80eae1f973497c4e5d81a92ed0797a55316b358a42a955fe44f476d1e0e90c15211dc30f4dd20c58cb
SSDEEP

6144:lloZMCrIkd8g+EtXHkv/iD4sodaBPUonIWvRsY99ib8e1miLZi:noZZL+EP8sodaBPUonIWvRsY9wfLA

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4384-0-0x000002152CF10000-0x000002152CF50000-memory.dmp	family_umbral

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1084	powershell.exe

Reads user/profile data of web browsers 2 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

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

Web Service

T1102

flow	ioc
25	discord.com
27	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
22	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1644	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1084	powershell.exe
1084	powershell.exe
5048	powershell.exe
5048	powershell.exe
4448	powershell.exe
4448	powershell.exe
3308	powershell.exe
3308	powershell.exe
1056	powershell.exe
1056	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe
Token: SeDebugPrivilege	1084	powershell.exe
Token: SeDebugPrivilege	5048	powershell.exe
Token: SeDebugPrivilege	4448	powershell.exe
Token: SeDebugPrivilege	3308	powershell.exe
Token: SeIncreaseQuotaPrivilege	1900	wmic.exe
Token: SeSecurityPrivilege	1900	wmic.exe
Token: SeTakeOwnershipPrivilege	1900	wmic.exe
Token: SeLoadDriverPrivilege	1900	wmic.exe
Token: SeSystemProfilePrivilege	1900	wmic.exe
Token: SeSystemtimePrivilege	1900	wmic.exe
Token: SeProfSingleProcessPrivilege	1900	wmic.exe
Token: SeIncBasePriorityPrivilege	1900	wmic.exe
Token: SeCreatePagefilePrivilege	1900	wmic.exe
Token: SeBackupPrivilege	1900	wmic.exe
Token: SeRestorePrivilege	1900	wmic.exe
Token: SeShutdownPrivilege	1900	wmic.exe
Token: SeDebugPrivilege	1900	wmic.exe
Token: SeSystemEnvironmentPrivilege	1900	wmic.exe
Token: SeRemoteShutdownPrivilege	1900	wmic.exe
Token: SeUndockPrivilege	1900	wmic.exe
Token: SeManageVolumePrivilege	1900	wmic.exe
Token: 33	1900	wmic.exe
Token: 34	1900	wmic.exe
Token: 35	1900	wmic.exe
Token: 36	1900	wmic.exe
Token: SeIncreaseQuotaPrivilege	1900	wmic.exe
Token: SeSecurityPrivilege	1900	wmic.exe
Token: SeTakeOwnershipPrivilege	1900	wmic.exe
Token: SeLoadDriverPrivilege	1900	wmic.exe
Token: SeSystemProfilePrivilege	1900	wmic.exe
Token: SeSystemtimePrivilege	1900	wmic.exe
Token: SeProfSingleProcessPrivilege	1900	wmic.exe
Token: SeIncBasePriorityPrivilege	1900	wmic.exe
Token: SeCreatePagefilePrivilege	1900	wmic.exe
Token: SeBackupPrivilege	1900	wmic.exe
Token: SeRestorePrivilege	1900	wmic.exe
Token: SeShutdownPrivilege	1900	wmic.exe
Token: SeDebugPrivilege	1900	wmic.exe
Token: SeSystemEnvironmentPrivilege	1900	wmic.exe
Token: SeRemoteShutdownPrivilege	1900	wmic.exe
Token: SeUndockPrivilege	1900	wmic.exe
Token: SeManageVolumePrivilege	1900	wmic.exe
Token: 33	1900	wmic.exe
Token: 34	1900	wmic.exe
Token: 35	1900	wmic.exe
Token: 36	1900	wmic.exe
Token: SeIncreaseQuotaPrivilege	4408	wmic.exe
Token: SeSecurityPrivilege	4408	wmic.exe
Token: SeTakeOwnershipPrivilege	4408	wmic.exe
Token: SeLoadDriverPrivilege	4408	wmic.exe
Token: SeSystemProfilePrivilege	4408	wmic.exe
Token: SeSystemtimePrivilege	4408	wmic.exe
Token: SeProfSingleProcessPrivilege	4408	wmic.exe
Token: SeIncBasePriorityPrivilege	4408	wmic.exe
Token: SeCreatePagefilePrivilege	4408	wmic.exe
Token: SeBackupPrivilege	4408	wmic.exe
Token: SeRestorePrivilege	4408	wmic.exe
Token: SeShutdownPrivilege	4408	wmic.exe
Token: SeDebugPrivilege	4408	wmic.exe
Token: SeSystemEnvironmentPrivilege	4408	wmic.exe
Token: SeRemoteShutdownPrivilege	4408	wmic.exe
Token: SeUndockPrivilege	4408	wmic.exe
Token: SeManageVolumePrivilege	4408	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 1084	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	82
PID 4384 wrote to memory of 1084	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	82
PID 4384 wrote to memory of 5048	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	85
PID 4384 wrote to memory of 5048	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	85
PID 4384 wrote to memory of 4448	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	87
PID 4384 wrote to memory of 4448	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	87
PID 4384 wrote to memory of 3308	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	89
PID 4384 wrote to memory of 3308	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	89
PID 4384 wrote to memory of 1900	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	92
PID 4384 wrote to memory of 1900	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	92
PID 4384 wrote to memory of 4408	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	95
PID 4384 wrote to memory of 4408	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	95
PID 4384 wrote to memory of 2024	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	98
PID 4384 wrote to memory of 2024	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	98
PID 4384 wrote to memory of 1056	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	100
PID 4384 wrote to memory of 1056	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	100
PID 4384 wrote to memory of 1644	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	102
PID 4384 wrote to memory of 1644	4384	5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe	102

C:\Users\Admin\AppData\Local\Temp\5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe
"C:\Users\Admin\AppData\Local\Temp\5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1084
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5048
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4448
- 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:3308
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1900
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4408
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2024
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1056
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1644

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

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

Replay Monitor

Loading Replay Monitor...

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
17d8127be94d3c1b6fcc9a4ed585003e

SHA1
789874fcc7c778c723f3e89822d8cc8750c6c4c8

SHA256
ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

SHA512
bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

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
45ad40f012b09e141955482368549640

SHA1
3f9cd15875c1e397c3b2b5592805577ae88a96cb

SHA256
ea3b59172f1a33677f9cb3843fb4d6093b806d3a7cf2f3c6d4692f5421f656ce

SHA512
3de08f8affca1c1450088f560776cf3d65146cadac43c06eb922c7b3cea436e519966cf38458303ffeb1a58c53f8952cffda6c34216fda7594e014b516e83b33

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zs5dfxeq.vqn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1084-10-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download
memory/1084-14-0x0000016476C80000-0x0000016476CA2000-memory.dmp

Filesize
136KB

Download
memory/1084-15-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download
memory/1084-18-0x0000016476D30000-0x0000016476F4C000-memory.dmp

Filesize
2.1MB

Download
memory/1084-19-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download
memory/1084-3-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download
memory/4384-0-0x000002152CF10000-0x000002152CF50000-memory.dmp

Filesize
256KB

Download
memory/4384-33-0x00000215476D0000-0x0000021547720000-memory.dmp

Filesize
320KB

Download
memory/4384-34-0x0000021547770000-0x000002154778E000-memory.dmp

Filesize
120KB

Download
memory/4384-1-0x00007FF992333000-0x00007FF992335000-memory.dmp

Filesize
8KB

Download
memory/4384-32-0x0000021547650000-0x00000215476C6000-memory.dmp

Filesize
472KB

Download
memory/4384-71-0x0000021547630000-0x000002154763A000-memory.dmp

Filesize
40KB

Download
memory/4384-72-0x0000021547740000-0x0000021547752000-memory.dmp

Filesize
72KB

Download
memory/4384-2-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download
memory/4384-92-0x00007FF992330000-0x00007FF992DF1000-memory.dmp

Filesize
10.8MB

Download