umbral | 0e4f60dac056f2c2b989e90990ee53c6c22d1dad6f4b5c033ef0213f0e386bcf

Analysis

max time kernel
145s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
02-05-2024 04:44

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General

Target

pulse.exe
Size

229KB
MD5

5edea2e562816e345ef04ef26875c7b0
SHA1

6e3894d1eb6236c238e94efe1cd0f418982a4bd0
SHA256

0e4f60dac056f2c2b989e90990ee53c6c22d1dad6f4b5c033ef0213f0e386bcf
SHA512

366fff12180f37f0e6528ca7c295e615c789c14de6266dd401108133ff20f1db047e590fe1f8a5ed6548e78ce6dbecfc4e84755d5bc5142f55fa16a5981c707d
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4xIyh4+ZRSJ3q459ckNb8e1mxi:noZtL+EP8xIyh4+ZRSJ3q459cUD

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3136-0-0x0000019450550000-0x0000019450590000-memory.dmp	family_umbral

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	pulse.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
22	discord.com
23	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

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2208	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4312	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3136	pulse.exe
3544	powershell.exe
3544	powershell.exe
860	powershell.exe
860	powershell.exe
1412	powershell.exe
1412	powershell.exe
1672	powershell.exe
1672	powershell.exe
624	powershell.exe
624	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3136	pulse.exe
Token: SeIncreaseQuotaPrivilege	1508	wmic.exe
Token: SeSecurityPrivilege	1508	wmic.exe
Token: SeTakeOwnershipPrivilege	1508	wmic.exe
Token: SeLoadDriverPrivilege	1508	wmic.exe
Token: SeSystemProfilePrivilege	1508	wmic.exe
Token: SeSystemtimePrivilege	1508	wmic.exe
Token: SeProfSingleProcessPrivilege	1508	wmic.exe
Token: SeIncBasePriorityPrivilege	1508	wmic.exe
Token: SeCreatePagefilePrivilege	1508	wmic.exe
Token: SeBackupPrivilege	1508	wmic.exe
Token: SeRestorePrivilege	1508	wmic.exe
Token: SeShutdownPrivilege	1508	wmic.exe
Token: SeDebugPrivilege	1508	wmic.exe
Token: SeSystemEnvironmentPrivilege	1508	wmic.exe
Token: SeRemoteShutdownPrivilege	1508	wmic.exe
Token: SeUndockPrivilege	1508	wmic.exe
Token: SeManageVolumePrivilege	1508	wmic.exe
Token: 33	1508	wmic.exe
Token: 34	1508	wmic.exe
Token: 35	1508	wmic.exe
Token: 36	1508	wmic.exe
Token: SeIncreaseQuotaPrivilege	1508	wmic.exe
Token: SeSecurityPrivilege	1508	wmic.exe
Token: SeTakeOwnershipPrivilege	1508	wmic.exe
Token: SeLoadDriverPrivilege	1508	wmic.exe
Token: SeSystemProfilePrivilege	1508	wmic.exe
Token: SeSystemtimePrivilege	1508	wmic.exe
Token: SeProfSingleProcessPrivilege	1508	wmic.exe
Token: SeIncBasePriorityPrivilege	1508	wmic.exe
Token: SeCreatePagefilePrivilege	1508	wmic.exe
Token: SeBackupPrivilege	1508	wmic.exe
Token: SeRestorePrivilege	1508	wmic.exe
Token: SeShutdownPrivilege	1508	wmic.exe
Token: SeDebugPrivilege	1508	wmic.exe
Token: SeSystemEnvironmentPrivilege	1508	wmic.exe
Token: SeRemoteShutdownPrivilege	1508	wmic.exe
Token: SeUndockPrivilege	1508	wmic.exe
Token: SeManageVolumePrivilege	1508	wmic.exe
Token: 33	1508	wmic.exe
Token: 34	1508	wmic.exe
Token: 35	1508	wmic.exe
Token: 36	1508	wmic.exe
Token: SeDebugPrivilege	3544	powershell.exe
Token: SeDebugPrivilege	860	powershell.exe
Token: SeDebugPrivilege	1412	powershell.exe
Token: SeDebugPrivilege	1672	powershell.exe
Token: SeIncreaseQuotaPrivilege	2852	wmic.exe
Token: SeSecurityPrivilege	2852	wmic.exe
Token: SeTakeOwnershipPrivilege	2852	wmic.exe
Token: SeLoadDriverPrivilege	2852	wmic.exe
Token: SeSystemProfilePrivilege	2852	wmic.exe
Token: SeSystemtimePrivilege	2852	wmic.exe
Token: SeProfSingleProcessPrivilege	2852	wmic.exe
Token: SeIncBasePriorityPrivilege	2852	wmic.exe
Token: SeCreatePagefilePrivilege	2852	wmic.exe
Token: SeBackupPrivilege	2852	wmic.exe
Token: SeRestorePrivilege	2852	wmic.exe
Token: SeShutdownPrivilege	2852	wmic.exe
Token: SeDebugPrivilege	2852	wmic.exe
Token: SeSystemEnvironmentPrivilege	2852	wmic.exe
Token: SeRemoteShutdownPrivilege	2852	wmic.exe
Token: SeUndockPrivilege	2852	wmic.exe
Token: SeManageVolumePrivilege	2852	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 1508	3136	pulse.exe	85
PID 3136 wrote to memory of 1508	3136	pulse.exe	85
PID 3136 wrote to memory of 4832	3136	pulse.exe	90
PID 3136 wrote to memory of 4832	3136	pulse.exe	90
PID 3136 wrote to memory of 3544	3136	pulse.exe	92
PID 3136 wrote to memory of 3544	3136	pulse.exe	92
PID 3136 wrote to memory of 860	3136	pulse.exe	95
PID 3136 wrote to memory of 860	3136	pulse.exe	95
PID 3136 wrote to memory of 1412	3136	pulse.exe	97
PID 3136 wrote to memory of 1412	3136	pulse.exe	97
PID 3136 wrote to memory of 1672	3136	pulse.exe	99
PID 3136 wrote to memory of 1672	3136	pulse.exe	99
PID 3136 wrote to memory of 2852	3136	pulse.exe	103
PID 3136 wrote to memory of 2852	3136	pulse.exe	103
PID 3136 wrote to memory of 2656	3136	pulse.exe	105
PID 3136 wrote to memory of 2656	3136	pulse.exe	105
PID 3136 wrote to memory of 1832	3136	pulse.exe	107
PID 3136 wrote to memory of 1832	3136	pulse.exe	107
PID 3136 wrote to memory of 624	3136	pulse.exe	109
PID 3136 wrote to memory of 624	3136	pulse.exe	109
PID 3136 wrote to memory of 2208	3136	pulse.exe	111
PID 3136 wrote to memory of 2208	3136	pulse.exe	111
PID 3136 wrote to memory of 2952	3136	pulse.exe	114
PID 3136 wrote to memory of 2952	3136	pulse.exe	114
PID 2952 wrote to memory of 4312	2952	cmd.exe	116
PID 2952 wrote to memory of 4312	2952	cmd.exe	116

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4832	attrib.exe

C:\Users\Admin\AppData\Local\Temp\pulse.exe
"C:\Users\Admin\AppData\Local\Temp\pulse.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3136
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1508
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\pulse.exe"
  2⤵
  - Views/modifies file attributes
  PID:4832
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\pulse.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3544
- 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:860
- 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:1412
- 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:1672
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2656
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1832
- 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:624
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2208
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\pulse.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:4312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

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
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
2979eabc783eaca50de7be23dd4eafcf

SHA1
d709ce5f3a06b7958a67e20870bfd95b83cad2ea

SHA256
006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

SHA512
92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
f2c36eba56eb920886e708e19011cc5d

SHA1
cdf245a5777270b135c3b89eeeb6df1badf6e16e

SHA256
9dc08df6cd84b6a9c645f81697c455080811a622a699aae94cf177a32339b8ad

SHA512
8409b92630fc6d1b56d2570b20f367ec9c8ddeca38067b26dd72fbe93b85275ccc7e567e652a6a7e70bc188be32095f54ac369073ae3598c29aabed0cf2786de

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ll0qrnl3.j2r.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3136-71-0x0000019452230000-0x000001945223A000-memory.dmp

Filesize
40KB

Download
memory/3136-35-0x0000019452210000-0x000001945222E000-memory.dmp

Filesize
120KB

Download
memory/3136-90-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download
memory/3136-72-0x000001946AD50000-0x000001946AD62000-memory.dmp

Filesize
72KB

Download
memory/3136-2-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download
memory/3136-33-0x000001946AC80000-0x000001946ACF6000-memory.dmp

Filesize
472KB

Download
memory/3136-34-0x000001946AD00000-0x000001946AD50000-memory.dmp

Filesize
320KB

Download
memory/3136-0-0x0000019450550000-0x0000019450590000-memory.dmp

Filesize
256KB

Download
memory/3136-1-0x00007FFF19CC3000-0x00007FFF19CC5000-memory.dmp

Filesize
8KB

Download
memory/3544-15-0x000001E3AF4E0000-0x000001E3AF502000-memory.dmp

Filesize
136KB

Download
memory/3544-4-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download
memory/3544-3-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download
memory/3544-5-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download
memory/3544-18-0x00007FFF19CC0000-0x00007FFF1A781000-memory.dmp

Filesize
10.8MB

Download