umbral | db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69

Analysis

max time kernel
98s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 21:49

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General

Target

db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe
Size

232KB
MD5

e552c6a05617db44fa43f9c71e5f52e0
SHA1

205955082d95aeb78fce636f0bfc227777ccbd47
SHA256

db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69
SHA512

7f58593abc19cbbe316a96c9fa2b55f108c314111cdee6834cad8d60db1c53aef5abe04b29fa1439d58fb61cc98fd9b57dc8b7a4155a93a36025c5163436fbf8
SSDEEP

6144:iloZM+rIkd8g+EtXHkv/iD4GNtExfEY34mfhpNsjLb8e1mPZi:soZtL+EP8GNtExfEY34mfhpNsrT

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4552-1-0x0000020A9FB40000-0x0000020A9FB80000-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
1568	powershell.exe
264	powershell.exe
1008	powershell.exe
4544	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.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
32	discord.com
33	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
10	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
2164	cmd.exe
2624	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3220	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2624	PING.EXE

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe
1568	powershell.exe
1568	powershell.exe
1008	powershell.exe
1008	powershell.exe
4544	powershell.exe
4544	powershell.exe
3248	powershell.exe
3248	powershell.exe
264	powershell.exe
264	powershell.exe
264	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe
Token: SeIncreaseQuotaPrivilege	1256	wmic.exe
Token: SeSecurityPrivilege	1256	wmic.exe
Token: SeTakeOwnershipPrivilege	1256	wmic.exe
Token: SeLoadDriverPrivilege	1256	wmic.exe
Token: SeSystemProfilePrivilege	1256	wmic.exe
Token: SeSystemtimePrivilege	1256	wmic.exe
Token: SeProfSingleProcessPrivilege	1256	wmic.exe
Token: SeIncBasePriorityPrivilege	1256	wmic.exe
Token: SeCreatePagefilePrivilege	1256	wmic.exe
Token: SeBackupPrivilege	1256	wmic.exe
Token: SeRestorePrivilege	1256	wmic.exe
Token: SeShutdownPrivilege	1256	wmic.exe
Token: SeDebugPrivilege	1256	wmic.exe
Token: SeSystemEnvironmentPrivilege	1256	wmic.exe
Token: SeRemoteShutdownPrivilege	1256	wmic.exe
Token: SeUndockPrivilege	1256	wmic.exe
Token: SeManageVolumePrivilege	1256	wmic.exe
Token: 33	1256	wmic.exe
Token: 34	1256	wmic.exe
Token: 35	1256	wmic.exe
Token: 36	1256	wmic.exe
Token: SeIncreaseQuotaPrivilege	1256	wmic.exe
Token: SeSecurityPrivilege	1256	wmic.exe
Token: SeTakeOwnershipPrivilege	1256	wmic.exe
Token: SeLoadDriverPrivilege	1256	wmic.exe
Token: SeSystemProfilePrivilege	1256	wmic.exe
Token: SeSystemtimePrivilege	1256	wmic.exe
Token: SeProfSingleProcessPrivilege	1256	wmic.exe
Token: SeIncBasePriorityPrivilege	1256	wmic.exe
Token: SeCreatePagefilePrivilege	1256	wmic.exe
Token: SeBackupPrivilege	1256	wmic.exe
Token: SeRestorePrivilege	1256	wmic.exe
Token: SeShutdownPrivilege	1256	wmic.exe
Token: SeDebugPrivilege	1256	wmic.exe
Token: SeSystemEnvironmentPrivilege	1256	wmic.exe
Token: SeRemoteShutdownPrivilege	1256	wmic.exe
Token: SeUndockPrivilege	1256	wmic.exe
Token: SeManageVolumePrivilege	1256	wmic.exe
Token: 33	1256	wmic.exe
Token: 34	1256	wmic.exe
Token: 35	1256	wmic.exe
Token: 36	1256	wmic.exe
Token: SeDebugPrivilege	1568	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	4544	powershell.exe
Token: SeDebugPrivilege	3248	powershell.exe
Token: SeIncreaseQuotaPrivilege	3720	wmic.exe
Token: SeSecurityPrivilege	3720	wmic.exe
Token: SeTakeOwnershipPrivilege	3720	wmic.exe
Token: SeLoadDriverPrivilege	3720	wmic.exe
Token: SeSystemProfilePrivilege	3720	wmic.exe
Token: SeSystemtimePrivilege	3720	wmic.exe
Token: SeProfSingleProcessPrivilege	3720	wmic.exe
Token: SeIncBasePriorityPrivilege	3720	wmic.exe
Token: SeCreatePagefilePrivilege	3720	wmic.exe
Token: SeBackupPrivilege	3720	wmic.exe
Token: SeRestorePrivilege	3720	wmic.exe
Token: SeShutdownPrivilege	3720	wmic.exe
Token: SeDebugPrivilege	3720	wmic.exe
Token: SeSystemEnvironmentPrivilege	3720	wmic.exe
Token: SeRemoteShutdownPrivilege	3720	wmic.exe
Token: SeUndockPrivilege	3720	wmic.exe
Token: SeManageVolumePrivilege	3720	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 1256	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	86
PID 4552 wrote to memory of 1256	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	86
PID 4552 wrote to memory of 3776	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	91
PID 4552 wrote to memory of 3776	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	91
PID 4552 wrote to memory of 1568	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	93
PID 4552 wrote to memory of 1568	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	93
PID 4552 wrote to memory of 1008	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	95
PID 4552 wrote to memory of 1008	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	95
PID 4552 wrote to memory of 4544	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	99
PID 4552 wrote to memory of 4544	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	99
PID 4552 wrote to memory of 3248	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	101
PID 4552 wrote to memory of 3248	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	101
PID 4552 wrote to memory of 3720	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	103
PID 4552 wrote to memory of 3720	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	103
PID 4552 wrote to memory of 4440	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	106
PID 4552 wrote to memory of 4440	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	106
PID 4552 wrote to memory of 2176	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	108
PID 4552 wrote to memory of 2176	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	108
PID 4552 wrote to memory of 264	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	110
PID 4552 wrote to memory of 264	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	110
PID 4552 wrote to memory of 3220	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	112
PID 4552 wrote to memory of 3220	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	112
PID 4552 wrote to memory of 2164	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	114
PID 4552 wrote to memory of 2164	4552	db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe	114
PID 2164 wrote to memory of 2624	2164	cmd.exe	117
PID 2164 wrote to memory of 2624	2164	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3776	attrib.exe

C:\Users\Admin\AppData\Local\Temp\db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe
"C:\Users\Admin\AppData\Local\Temp\db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1256
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe"
  2⤵
  - Views/modifies file attributes
  PID:3776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1568
- 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:1008
- 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:4544
- 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:3248
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3720
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4440
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2176
- 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:264
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3220
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\db50a547a9159e1075ff42944ae9c3676e7dee572237f05de0ab0fcf8448ab69N.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2624

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
8ac55231307a0301e6f1d61406bf950c

SHA1
bcd13a5bf9163c3fcc5f0d6842ef4ea4771332ec

SHA256
56470a7bbc331928ada2ab7992cc791c23b2a79a1af7fffa505cefca4144a56d

SHA512
37fcf11af4ebebca50c57de0ae4b3c2fe6fc3e478be3f5725c285b2897c810e26b317fd7b38b6f9dbada80f05c939960d4c4d658a8b561bbb7e9bfc3d0b5a730

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ap3s2tfq.xkd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1568-8-0x000001E1EDDC0000-0x000001E1EDDE2000-memory.dmp

Filesize
136KB

Download
memory/1568-13-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download
memory/1568-14-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download
memory/1568-15-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download
memory/1568-18-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download
memory/4552-34-0x0000020ABA220000-0x0000020ABA270000-memory.dmp

Filesize
320KB

Download
memory/4552-33-0x0000020ABA270000-0x0000020ABA2E6000-memory.dmp

Filesize
472KB

Download
memory/4552-35-0x0000020ABA1F0000-0x0000020ABA20E000-memory.dmp

Filesize
120KB

Download
memory/4552-1-0x0000020A9FB40000-0x0000020A9FB80000-memory.dmp

Filesize
256KB

Download
memory/4552-0-0x00007FFFB8BE3000-0x00007FFFB8BE5000-memory.dmp

Filesize
8KB

Download
memory/4552-72-0x0000020ABA450000-0x0000020ABA462000-memory.dmp

Filesize
72KB

Download
memory/4552-71-0x0000020ABA400000-0x0000020ABA40A000-memory.dmp

Filesize
40KB

Download
memory/4552-2-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download
memory/4552-90-0x00007FFFB8BE0000-0x00007FFFB96A1000-memory.dmp

Filesize
10.8MB

Download