umbral | 9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 20:24

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General

Target

9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
Size

234KB
MD5

18a5e3fd22133b48de0ac3ae4e41c997
SHA1

6664c80cf7567077385cc5f82aba04d525a7a8a9
SHA256

9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53
SHA512

c359ef3b9b5736b63e8906f6d35e6fb9b6f286f4fd382f5f445f2a5c9e38673a04f90215349c417c19e67cd9e123925521084167ac2dce0af842d18eb3c070b9
SSDEEP

6144:zloZM+rIkd8g+EtXHkv/iD4VsEnYe5xysXKYZd85Wn+l78e1mUDiM:xoZtL+EP8mEnYe5xysXKYZd85zJiM

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1540-1-0x000001B99DE20000-0x000001B99DE60000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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
1756	powershell.exe
3232	powershell.exe
5096	powershell.exe
3556	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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
29	discord.com
30	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
11	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
436	cmd.exe
4692	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1588	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4692	PING.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
1756	powershell.exe
1756	powershell.exe
1756	powershell.exe
5096	powershell.exe
5096	powershell.exe
5096	powershell.exe
3556	powershell.exe
3556	powershell.exe
3556	powershell.exe
3324	powershell.exe
3324	powershell.exe
3324	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
Token: SeIncreaseQuotaPrivilege	436	wmic.exe
Token: SeSecurityPrivilege	436	wmic.exe
Token: SeTakeOwnershipPrivilege	436	wmic.exe
Token: SeLoadDriverPrivilege	436	wmic.exe
Token: SeSystemProfilePrivilege	436	wmic.exe
Token: SeSystemtimePrivilege	436	wmic.exe
Token: SeProfSingleProcessPrivilege	436	wmic.exe
Token: SeIncBasePriorityPrivilege	436	wmic.exe
Token: SeCreatePagefilePrivilege	436	wmic.exe
Token: SeBackupPrivilege	436	wmic.exe
Token: SeRestorePrivilege	436	wmic.exe
Token: SeShutdownPrivilege	436	wmic.exe
Token: SeDebugPrivilege	436	wmic.exe
Token: SeSystemEnvironmentPrivilege	436	wmic.exe
Token: SeRemoteShutdownPrivilege	436	wmic.exe
Token: SeUndockPrivilege	436	wmic.exe
Token: SeManageVolumePrivilege	436	wmic.exe
Token: 33	436	wmic.exe
Token: 34	436	wmic.exe
Token: 35	436	wmic.exe
Token: 36	436	wmic.exe
Token: SeIncreaseQuotaPrivilege	436	wmic.exe
Token: SeSecurityPrivilege	436	wmic.exe
Token: SeTakeOwnershipPrivilege	436	wmic.exe
Token: SeLoadDriverPrivilege	436	wmic.exe
Token: SeSystemProfilePrivilege	436	wmic.exe
Token: SeSystemtimePrivilege	436	wmic.exe
Token: SeProfSingleProcessPrivilege	436	wmic.exe
Token: SeIncBasePriorityPrivilege	436	wmic.exe
Token: SeCreatePagefilePrivilege	436	wmic.exe
Token: SeBackupPrivilege	436	wmic.exe
Token: SeRestorePrivilege	436	wmic.exe
Token: SeShutdownPrivilege	436	wmic.exe
Token: SeDebugPrivilege	436	wmic.exe
Token: SeSystemEnvironmentPrivilege	436	wmic.exe
Token: SeRemoteShutdownPrivilege	436	wmic.exe
Token: SeUndockPrivilege	436	wmic.exe
Token: SeManageVolumePrivilege	436	wmic.exe
Token: 33	436	wmic.exe
Token: 34	436	wmic.exe
Token: 35	436	wmic.exe
Token: 36	436	wmic.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	5096	powershell.exe
Token: SeDebugPrivilege	3556	powershell.exe
Token: SeDebugPrivilege	3324	powershell.exe
Token: SeIncreaseQuotaPrivilege	3240	wmic.exe
Token: SeSecurityPrivilege	3240	wmic.exe
Token: SeTakeOwnershipPrivilege	3240	wmic.exe
Token: SeLoadDriverPrivilege	3240	wmic.exe
Token: SeSystemProfilePrivilege	3240	wmic.exe
Token: SeSystemtimePrivilege	3240	wmic.exe
Token: SeProfSingleProcessPrivilege	3240	wmic.exe
Token: SeIncBasePriorityPrivilege	3240	wmic.exe
Token: SeCreatePagefilePrivilege	3240	wmic.exe
Token: SeBackupPrivilege	3240	wmic.exe
Token: SeRestorePrivilege	3240	wmic.exe
Token: SeShutdownPrivilege	3240	wmic.exe
Token: SeDebugPrivilege	3240	wmic.exe
Token: SeSystemEnvironmentPrivilege	3240	wmic.exe
Token: SeRemoteShutdownPrivilege	3240	wmic.exe
Token: SeUndockPrivilege	3240	wmic.exe
Token: SeManageVolumePrivilege	3240	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 436	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	92
PID 1540 wrote to memory of 436	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	92
PID 1540 wrote to memory of 2476	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	97
PID 1540 wrote to memory of 2476	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	97
PID 1540 wrote to memory of 1756	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	99
PID 1540 wrote to memory of 1756	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	99
PID 1540 wrote to memory of 5096	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	101
PID 1540 wrote to memory of 5096	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	101
PID 1540 wrote to memory of 3556	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	105
PID 1540 wrote to memory of 3556	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	105
PID 1540 wrote to memory of 3324	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	108
PID 1540 wrote to memory of 3324	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	108
PID 1540 wrote to memory of 3240	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	110
PID 1540 wrote to memory of 3240	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	110
PID 1540 wrote to memory of 772	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	113
PID 1540 wrote to memory of 772	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	113
PID 1540 wrote to memory of 3088	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	115
PID 1540 wrote to memory of 3088	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	115
PID 1540 wrote to memory of 3232	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	117
PID 1540 wrote to memory of 3232	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	117
PID 1540 wrote to memory of 1588	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	119
PID 1540 wrote to memory of 1588	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	119
PID 1540 wrote to memory of 436	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	122
PID 1540 wrote to memory of 436	1540	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	122
PID 436 wrote to memory of 4692	436	cmd.exe	124
PID 436 wrote to memory of 4692	436	cmd.exe	124

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2476	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
"C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:436
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe"
  2⤵
  - Views/modifies file attributes
  PID:2476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- 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:5096
- 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:3556
- 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:3324
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3240
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:772
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3088
- 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:3232
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1588
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:436
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4692

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4396,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4392 /prefetch:8
1⤵
PID:1052

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
948B

MD5
1a58f982c18490e622e00d4eb75ace5a

SHA1
60c30527b74659ecf09089a5a7c02a1df9a71b65

SHA256
4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d

SHA512
ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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

Filesize
1KB

MD5
cd07d41354884d70dfa78bbb56fbc830

SHA1
fdbf13029c34cd471ea502455cea9102cecd4e6d

SHA256
b3a76ae9e5270debc38cd8ecf711683df3772ac8c04a8e4c551f97dc5e52ec79

SHA512
c2b1975fe2cfe042aea3261f8293a5f9b6b401b68cf42c323c7ca32645bb06cc7bf6bb31d37bb37ef7bff0686017ae9e814e8e8370ea3d70a0091e0e1c0eafa7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jhjenjpc.a2n.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1540-68-0x000001B99FBF0000-0x000001B99FBFA000-memory.dmp

Filesize
40KB

Download
memory/1540-35-0x000001B99FB90000-0x000001B99FBAE000-memory.dmp

Filesize
120KB

Download
memory/1540-87-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download
memory/1540-69-0x000001B9B8660000-0x000001B9B8672000-memory.dmp

Filesize
72KB

Download
memory/1540-2-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download
memory/1540-33-0x000001B9B85A0000-0x000001B9B8616000-memory.dmp

Filesize
472KB

Download
memory/1540-34-0x000001B9B8520000-0x000001B9B8570000-memory.dmp

Filesize
320KB

Download
memory/1540-0-0x00007FF9652F3000-0x00007FF9652F5000-memory.dmp

Filesize
8KB

Download
memory/1540-1-0x000001B99DE20000-0x000001B99DE60000-memory.dmp

Filesize
256KB

Download
memory/1756-15-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download
memory/1756-4-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download
memory/1756-3-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download
memory/1756-10-0x000001CEA27A0000-0x000001CEA27C2000-memory.dmp

Filesize
136KB

Download
memory/1756-18-0x00007FF9652F0000-0x00007FF965DB1000-memory.dmp

Filesize
10.8MB

Download