umbral | 0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c

Analysis

max time kernel
124s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/08/2024, 20:20

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General

Target

0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe
Size

231KB
MD5

dd37f3db081031f72358bb3b9edf4e21
SHA1

256023f67c0f6e3717d1e9a338187c33d16b6574
SHA256

0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c
SHA512

08f1776d67fbef2d4139031abd5fdbd953e8312d54563883b4c45df3dc4376356e24be7a84b47e20d6c9c20f771ce8b7fce4f8468c046743a77a7f4893dd812c
SSDEEP

6144:xloZMzrIkd8g+EtXHkv/iD4lDkgJX8QfP+nJUg1Nvmb8e1m6Fi:DoZcL+EP8lDkgJX8QfP+nJUg1sQ

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3012-1-0x000001FC7A7C0000-0x000001FC7A800000-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
4652	powershell.exe
5072	powershell.exe
4176	powershell.exe
316	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.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
33	discord.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
6	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
4752	PING.EXE
4012	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5048	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4752	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe
4652	powershell.exe
4652	powershell.exe
5072	powershell.exe
5072	powershell.exe
4176	powershell.exe
4176	powershell.exe
2700	powershell.exe
2700	powershell.exe
316	powershell.exe
316	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe
Token: SeIncreaseQuotaPrivilege	468	wmic.exe
Token: SeSecurityPrivilege	468	wmic.exe
Token: SeTakeOwnershipPrivilege	468	wmic.exe
Token: SeLoadDriverPrivilege	468	wmic.exe
Token: SeSystemProfilePrivilege	468	wmic.exe
Token: SeSystemtimePrivilege	468	wmic.exe
Token: SeProfSingleProcessPrivilege	468	wmic.exe
Token: SeIncBasePriorityPrivilege	468	wmic.exe
Token: SeCreatePagefilePrivilege	468	wmic.exe
Token: SeBackupPrivilege	468	wmic.exe
Token: SeRestorePrivilege	468	wmic.exe
Token: SeShutdownPrivilege	468	wmic.exe
Token: SeDebugPrivilege	468	wmic.exe
Token: SeSystemEnvironmentPrivilege	468	wmic.exe
Token: SeRemoteShutdownPrivilege	468	wmic.exe
Token: SeUndockPrivilege	468	wmic.exe
Token: SeManageVolumePrivilege	468	wmic.exe
Token: 33	468	wmic.exe
Token: 34	468	wmic.exe
Token: 35	468	wmic.exe
Token: 36	468	wmic.exe
Token: SeIncreaseQuotaPrivilege	468	wmic.exe
Token: SeSecurityPrivilege	468	wmic.exe
Token: SeTakeOwnershipPrivilege	468	wmic.exe
Token: SeLoadDriverPrivilege	468	wmic.exe
Token: SeSystemProfilePrivilege	468	wmic.exe
Token: SeSystemtimePrivilege	468	wmic.exe
Token: SeProfSingleProcessPrivilege	468	wmic.exe
Token: SeIncBasePriorityPrivilege	468	wmic.exe
Token: SeCreatePagefilePrivilege	468	wmic.exe
Token: SeBackupPrivilege	468	wmic.exe
Token: SeRestorePrivilege	468	wmic.exe
Token: SeShutdownPrivilege	468	wmic.exe
Token: SeDebugPrivilege	468	wmic.exe
Token: SeSystemEnvironmentPrivilege	468	wmic.exe
Token: SeRemoteShutdownPrivilege	468	wmic.exe
Token: SeUndockPrivilege	468	wmic.exe
Token: SeManageVolumePrivilege	468	wmic.exe
Token: 33	468	wmic.exe
Token: 34	468	wmic.exe
Token: 35	468	wmic.exe
Token: 36	468	wmic.exe
Token: SeDebugPrivilege	4652	powershell.exe
Token: SeDebugPrivilege	5072	powershell.exe
Token: SeDebugPrivilege	4176	powershell.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeIncreaseQuotaPrivilege	2480	wmic.exe
Token: SeSecurityPrivilege	2480	wmic.exe
Token: SeTakeOwnershipPrivilege	2480	wmic.exe
Token: SeLoadDriverPrivilege	2480	wmic.exe
Token: SeSystemProfilePrivilege	2480	wmic.exe
Token: SeSystemtimePrivilege	2480	wmic.exe
Token: SeProfSingleProcessPrivilege	2480	wmic.exe
Token: SeIncBasePriorityPrivilege	2480	wmic.exe
Token: SeCreatePagefilePrivilege	2480	wmic.exe
Token: SeBackupPrivilege	2480	wmic.exe
Token: SeRestorePrivilege	2480	wmic.exe
Token: SeShutdownPrivilege	2480	wmic.exe
Token: SeDebugPrivilege	2480	wmic.exe
Token: SeSystemEnvironmentPrivilege	2480	wmic.exe
Token: SeRemoteShutdownPrivilege	2480	wmic.exe
Token: SeUndockPrivilege	2480	wmic.exe
Token: SeManageVolumePrivilege	2480	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 468	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	86
PID 3012 wrote to memory of 468	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	86
PID 3012 wrote to memory of 692	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	93
PID 3012 wrote to memory of 692	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	93
PID 3012 wrote to memory of 4652	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	95
PID 3012 wrote to memory of 4652	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	95
PID 3012 wrote to memory of 5072	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	97
PID 3012 wrote to memory of 5072	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	97
PID 3012 wrote to memory of 4176	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	99
PID 3012 wrote to memory of 4176	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	99
PID 3012 wrote to memory of 2700	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	101
PID 3012 wrote to memory of 2700	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	101
PID 3012 wrote to memory of 2480	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	104
PID 3012 wrote to memory of 2480	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	104
PID 3012 wrote to memory of 4304	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	106
PID 3012 wrote to memory of 4304	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	106
PID 3012 wrote to memory of 4732	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	108
PID 3012 wrote to memory of 4732	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	108
PID 3012 wrote to memory of 316	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	110
PID 3012 wrote to memory of 316	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	110
PID 3012 wrote to memory of 5048	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	114
PID 3012 wrote to memory of 5048	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	114
PID 3012 wrote to memory of 4012	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	121
PID 3012 wrote to memory of 4012	3012	0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe	121
PID 4012 wrote to memory of 4752	4012	cmd.exe	123
PID 4012 wrote to memory of 4752	4012	cmd.exe	123

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
692	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe
"C:\Users\Admin\AppData\Local\Temp\0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:468
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe"
  2⤵
  - Views/modifies file attributes
  PID:692
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4652
- 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:5072
- 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:4176
- 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:2700
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2480
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4304
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4732
- 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:316
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5048
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0a138d71d9cdd9c772628844181e087bc8f2f650e37702f131a32bf8d790867c.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4752

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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
985b3105d8889886d6fd953575c54e08

SHA1
0f9a041240a344d82bac0a180520e7982c15f3cd

SHA256
5178fdd457eb3eb25c8f72ed4c22c582a83de0d324db66d0446d660f226e944d

SHA512
0fd59bc4886b70aa3b7eeeaa23229b7fdc93410ca7f8452860e4a1bbda2559eaa5e4b05c3ec2d85f7d648daf3c16741f4c2c18f2dd3bae4cc4a4e57ae4f665b0

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
ac057a92f4b62d8880169af0693ef5b2

SHA1
66e7c7834c5dae5cec863ccd69403150d05841f4

SHA256
7cef55990e8e6cfe07e1965b303e79ac562cdc128ab82edf480d9873f72bb3ed

SHA512
d525f47da9e61fc87e55aca6b34e776be3ed081b719bbbb5256705a6afe5fdd4c16d5ee595af13994e2718f789f5fd32830331347d97b029c031c9dfe30c7f49

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k5ehwusk.ppe.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3012-70-0x000001FC7CE80000-0x000001FC7CE8A000-memory.dmp

Filesize
40KB

Download
memory/3012-33-0x000001FC7CE90000-0x000001FC7CEE0000-memory.dmp

Filesize
320KB

Download
memory/3012-91-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/3012-87-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/3012-2-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/3012-32-0x000001FC7CEE0000-0x000001FC7CF56000-memory.dmp

Filesize
472KB

Download
memory/3012-34-0x000001FC7D000000-0x000001FC7D01E000-memory.dmp

Filesize
120KB

Download
memory/3012-86-0x00007FFBC6D03000-0x00007FFBC6D05000-memory.dmp

Filesize
8KB

Download
memory/3012-1-0x000001FC7A7C0000-0x000001FC7A800000-memory.dmp

Filesize
256KB

Download
memory/3012-0-0x00007FFBC6D03000-0x00007FFBC6D05000-memory.dmp

Filesize
8KB

Download
memory/3012-71-0x000001FC7CF80000-0x000001FC7CF92000-memory.dmp

Filesize
72KB

Download
memory/4652-13-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/4652-12-0x000001A3383E0000-0x000001A338402000-memory.dmp

Filesize
136KB

Download
memory/4652-15-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/4652-14-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download
memory/4652-18-0x00007FFBC6D00000-0x00007FFBC77C1000-memory.dmp

Filesize
10.8MB

Download