umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
148s
max time network
150s
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 03:07

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General

Target

e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.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/4412-1-0x000001E899470000-0x000001E8994B0000-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
3716	powershell.exe
1172	powershell.exe
4120	powershell.exe
3680	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.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
13	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
4716	cmd.exe
3760	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2204	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3760	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3716	powershell.exe
3716	powershell.exe
1172	powershell.exe
1172	powershell.exe
4120	powershell.exe
4120	powershell.exe
2624	powershell.exe
2624	powershell.exe
3680	powershell.exe
3680	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe
Token: SeDebugPrivilege	3716	powershell.exe
Token: SeDebugPrivilege	1172	powershell.exe
Token: SeDebugPrivilege	4120	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeIncreaseQuotaPrivilege	2452	wmic.exe
Token: SeSecurityPrivilege	2452	wmic.exe
Token: SeTakeOwnershipPrivilege	2452	wmic.exe
Token: SeLoadDriverPrivilege	2452	wmic.exe
Token: SeSystemProfilePrivilege	2452	wmic.exe
Token: SeSystemtimePrivilege	2452	wmic.exe
Token: SeProfSingleProcessPrivilege	2452	wmic.exe
Token: SeIncBasePriorityPrivilege	2452	wmic.exe
Token: SeCreatePagefilePrivilege	2452	wmic.exe
Token: SeBackupPrivilege	2452	wmic.exe
Token: SeRestorePrivilege	2452	wmic.exe
Token: SeShutdownPrivilege	2452	wmic.exe
Token: SeDebugPrivilege	2452	wmic.exe
Token: SeSystemEnvironmentPrivilege	2452	wmic.exe
Token: SeRemoteShutdownPrivilege	2452	wmic.exe
Token: SeUndockPrivilege	2452	wmic.exe
Token: SeManageVolumePrivilege	2452	wmic.exe
Token: 33	2452	wmic.exe
Token: 34	2452	wmic.exe
Token: 35	2452	wmic.exe
Token: 36	2452	wmic.exe
Token: SeIncreaseQuotaPrivilege	2452	wmic.exe
Token: SeSecurityPrivilege	2452	wmic.exe
Token: SeTakeOwnershipPrivilege	2452	wmic.exe
Token: SeLoadDriverPrivilege	2452	wmic.exe
Token: SeSystemProfilePrivilege	2452	wmic.exe
Token: SeSystemtimePrivilege	2452	wmic.exe
Token: SeProfSingleProcessPrivilege	2452	wmic.exe
Token: SeIncBasePriorityPrivilege	2452	wmic.exe
Token: SeCreatePagefilePrivilege	2452	wmic.exe
Token: SeBackupPrivilege	2452	wmic.exe
Token: SeRestorePrivilege	2452	wmic.exe
Token: SeShutdownPrivilege	2452	wmic.exe
Token: SeDebugPrivilege	2452	wmic.exe
Token: SeSystemEnvironmentPrivilege	2452	wmic.exe
Token: SeRemoteShutdownPrivilege	2452	wmic.exe
Token: SeUndockPrivilege	2452	wmic.exe
Token: SeManageVolumePrivilege	2452	wmic.exe
Token: 33	2452	wmic.exe
Token: 34	2452	wmic.exe
Token: 35	2452	wmic.exe
Token: 36	2452	wmic.exe
Token: SeIncreaseQuotaPrivilege	4844	wmic.exe
Token: SeSecurityPrivilege	4844	wmic.exe
Token: SeTakeOwnershipPrivilege	4844	wmic.exe
Token: SeLoadDriverPrivilege	4844	wmic.exe
Token: SeSystemProfilePrivilege	4844	wmic.exe
Token: SeSystemtimePrivilege	4844	wmic.exe
Token: SeProfSingleProcessPrivilege	4844	wmic.exe
Token: SeIncBasePriorityPrivilege	4844	wmic.exe
Token: SeCreatePagefilePrivilege	4844	wmic.exe
Token: SeBackupPrivilege	4844	wmic.exe
Token: SeRestorePrivilege	4844	wmic.exe
Token: SeShutdownPrivilege	4844	wmic.exe
Token: SeDebugPrivilege	4844	wmic.exe
Token: SeSystemEnvironmentPrivilege	4844	wmic.exe
Token: SeRemoteShutdownPrivilege	4844	wmic.exe
Token: SeUndockPrivilege	4844	wmic.exe
Token: SeManageVolumePrivilege	4844	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 1908	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	108
PID 4412 wrote to memory of 1908	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	108
PID 4412 wrote to memory of 3716	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	85
PID 4412 wrote to memory of 3716	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	85
PID 4412 wrote to memory of 1172	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	87
PID 4412 wrote to memory of 1172	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	87
PID 4412 wrote to memory of 4120	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	89
PID 4412 wrote to memory of 4120	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	89
PID 4412 wrote to memory of 2624	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	91
PID 4412 wrote to memory of 2624	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	91
PID 4412 wrote to memory of 2452	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	93
PID 4412 wrote to memory of 2452	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	93
PID 4412 wrote to memory of 4844	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	96
PID 4412 wrote to memory of 4844	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	96
PID 4412 wrote to memory of 712	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	98
PID 4412 wrote to memory of 712	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	98
PID 4412 wrote to memory of 3680	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	100
PID 4412 wrote to memory of 3680	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	100
PID 4412 wrote to memory of 2204	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	102
PID 4412 wrote to memory of 2204	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	102
PID 4412 wrote to memory of 4716	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	105
PID 4412 wrote to memory of 4716	4412	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe	105
PID 4716 wrote to memory of 3760	4716	cmd.exe	107
PID 4716 wrote to memory of 3760	4716	cmd.exe	107

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1908	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe
"C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe"
  2⤵
  - Views/modifies file attributes
  PID:1908
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3716
- 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:1172
- 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:4120
- 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:2624
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2452
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4844
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:712
- 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:3680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2204
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4716
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3760

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:1908

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
17d8127be94d3c1b6fcc9a4ed585003e

SHA1
789874fcc7c778c723f3e89822d8cc8750c6c4c8

SHA256
ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

SHA512
bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

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
ded10d75f0c158ab3c672f4097f3f414

SHA1
e8eb411226238ee4ec6e8ef69f03171c99d89bc2

SHA256
65523e47057f5b14035e727c71136e7a88f88c8a8956729f9f74be4b7343a5a2

SHA512
ca925e939197b60f954f071bcd1beb98a4f947759b246afa3c50e5525b2cfab3db490bc3ed4cf8e2f2e5452a8b759ecfbc0a4d0ec904b00077b86212888876d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uxqaqy22.g3b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1172-31-0x000001CC68780000-0x000001CC6899C000-memory.dmp

Filesize
2.1MB

Download
memory/3716-15-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download
memory/3716-18-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download
memory/3716-13-0x000001AD1F5B0000-0x000001AD1F5D2000-memory.dmp

Filesize
136KB

Download
memory/3716-14-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download
memory/3716-8-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download
memory/4412-36-0x000001E89B2A0000-0x000001E89B2BE000-memory.dmp

Filesize
120KB

Download
memory/4412-35-0x000001E8B3CA0000-0x000001E8B3CF0000-memory.dmp

Filesize
320KB

Download
memory/4412-34-0x000001E8B3C20000-0x000001E8B3C96000-memory.dmp

Filesize
472KB

Download
memory/4412-1-0x000001E899470000-0x000001E8994B0000-memory.dmp

Filesize
256KB

Download
memory/4412-0-0x00007FF9E2CE3000-0x00007FF9E2CE5000-memory.dmp

Filesize
8KB

Download
memory/4412-74-0x000001E899990000-0x000001E8999A2000-memory.dmp

Filesize
72KB

Download
memory/4412-73-0x000001E899960000-0x000001E89996A000-memory.dmp

Filesize
40KB

Download
memory/4412-2-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download
memory/4412-94-0x00007FF9E2CE0000-0x00007FF9E37A1000-memory.dmp

Filesize
10.8MB

Download