umbral | b9bc80f978004667f7061aca80b41361b8ed3bfc49a1c00845d8d89688625b53

Analysis

max time kernel
14s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
02-06-2024 17:31

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General

Target

xlucheats.exe
Size

231KB
MD5

118714b4be372564292805a6016487cf
SHA1

08e8bf51aa6f2815d8ef050c21912a079d62aaf7
SHA256

b9bc80f978004667f7061aca80b41361b8ed3bfc49a1c00845d8d89688625b53
SHA512

523436e0a966027c1e87f9036025f956b96a9e9ded6cdc1f9da9df77384b2c176e758f219834268e9d37f5a236eef551a2561889fc2db429f6e2e49124ade34e
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4GAOk8il92vDe8NhoFynb8e1mmFMi:DoZtL+EP8GAOk8il92vDe8NhoFInH

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3256-0-0x0000020672060000-0x00000206720A0000-memory.dmp	family_umbral

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4764	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	xlucheats.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
24	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
2192	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4440	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3256	xlucheats.exe
4764	powershell.exe
4764	powershell.exe
3896	powershell.exe
3896	powershell.exe
4116	powershell.exe
4116	powershell.exe
4880	powershell.exe
4880	powershell.exe
3992	powershell.exe
3992	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3256	xlucheats.exe
Token: SeIncreaseQuotaPrivilege	4036	wmic.exe
Token: SeSecurityPrivilege	4036	wmic.exe
Token: SeTakeOwnershipPrivilege	4036	wmic.exe
Token: SeLoadDriverPrivilege	4036	wmic.exe
Token: SeSystemProfilePrivilege	4036	wmic.exe
Token: SeSystemtimePrivilege	4036	wmic.exe
Token: SeProfSingleProcessPrivilege	4036	wmic.exe
Token: SeIncBasePriorityPrivilege	4036	wmic.exe
Token: SeCreatePagefilePrivilege	4036	wmic.exe
Token: SeBackupPrivilege	4036	wmic.exe
Token: SeRestorePrivilege	4036	wmic.exe
Token: SeShutdownPrivilege	4036	wmic.exe
Token: SeDebugPrivilege	4036	wmic.exe
Token: SeSystemEnvironmentPrivilege	4036	wmic.exe
Token: SeRemoteShutdownPrivilege	4036	wmic.exe
Token: SeUndockPrivilege	4036	wmic.exe
Token: SeManageVolumePrivilege	4036	wmic.exe
Token: 33	4036	wmic.exe
Token: 34	4036	wmic.exe
Token: 35	4036	wmic.exe
Token: 36	4036	wmic.exe
Token: SeIncreaseQuotaPrivilege	4036	wmic.exe
Token: SeSecurityPrivilege	4036	wmic.exe
Token: SeTakeOwnershipPrivilege	4036	wmic.exe
Token: SeLoadDriverPrivilege	4036	wmic.exe
Token: SeSystemProfilePrivilege	4036	wmic.exe
Token: SeSystemtimePrivilege	4036	wmic.exe
Token: SeProfSingleProcessPrivilege	4036	wmic.exe
Token: SeIncBasePriorityPrivilege	4036	wmic.exe
Token: SeCreatePagefilePrivilege	4036	wmic.exe
Token: SeBackupPrivilege	4036	wmic.exe
Token: SeRestorePrivilege	4036	wmic.exe
Token: SeShutdownPrivilege	4036	wmic.exe
Token: SeDebugPrivilege	4036	wmic.exe
Token: SeSystemEnvironmentPrivilege	4036	wmic.exe
Token: SeRemoteShutdownPrivilege	4036	wmic.exe
Token: SeUndockPrivilege	4036	wmic.exe
Token: SeManageVolumePrivilege	4036	wmic.exe
Token: 33	4036	wmic.exe
Token: 34	4036	wmic.exe
Token: 35	4036	wmic.exe
Token: 36	4036	wmic.exe
Token: SeDebugPrivilege	4764	powershell.exe
Token: SeDebugPrivilege	3896	powershell.exe
Token: SeDebugPrivilege	4116	powershell.exe
Token: SeDebugPrivilege	4880	powershell.exe
Token: SeIncreaseQuotaPrivilege	1580	wmic.exe
Token: SeSecurityPrivilege	1580	wmic.exe
Token: SeTakeOwnershipPrivilege	1580	wmic.exe
Token: SeLoadDriverPrivilege	1580	wmic.exe
Token: SeSystemProfilePrivilege	1580	wmic.exe
Token: SeSystemtimePrivilege	1580	wmic.exe
Token: SeProfSingleProcessPrivilege	1580	wmic.exe
Token: SeIncBasePriorityPrivilege	1580	wmic.exe
Token: SeCreatePagefilePrivilege	1580	wmic.exe
Token: SeBackupPrivilege	1580	wmic.exe
Token: SeRestorePrivilege	1580	wmic.exe
Token: SeShutdownPrivilege	1580	wmic.exe
Token: SeDebugPrivilege	1580	wmic.exe
Token: SeSystemEnvironmentPrivilege	1580	wmic.exe
Token: SeRemoteShutdownPrivilege	1580	wmic.exe
Token: SeUndockPrivilege	1580	wmic.exe
Token: SeManageVolumePrivilege	1580	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 4036	3256	xlucheats.exe	84
PID 3256 wrote to memory of 4036	3256	xlucheats.exe	84
PID 3256 wrote to memory of 2668	3256	xlucheats.exe	88
PID 3256 wrote to memory of 2668	3256	xlucheats.exe	88
PID 3256 wrote to memory of 4764	3256	xlucheats.exe	90
PID 3256 wrote to memory of 4764	3256	xlucheats.exe	90
PID 3256 wrote to memory of 3896	3256	xlucheats.exe	92
PID 3256 wrote to memory of 3896	3256	xlucheats.exe	92
PID 3256 wrote to memory of 4116	3256	xlucheats.exe	94
PID 3256 wrote to memory of 4116	3256	xlucheats.exe	94
PID 3256 wrote to memory of 4880	3256	xlucheats.exe	96
PID 3256 wrote to memory of 4880	3256	xlucheats.exe	96
PID 3256 wrote to memory of 1580	3256	xlucheats.exe	98
PID 3256 wrote to memory of 1580	3256	xlucheats.exe	98
PID 3256 wrote to memory of 940	3256	xlucheats.exe	100
PID 3256 wrote to memory of 940	3256	xlucheats.exe	100
PID 3256 wrote to memory of 3228	3256	xlucheats.exe	102
PID 3256 wrote to memory of 3228	3256	xlucheats.exe	102
PID 3256 wrote to memory of 3992	3256	xlucheats.exe	104
PID 3256 wrote to memory of 3992	3256	xlucheats.exe	104
PID 3256 wrote to memory of 2192	3256	xlucheats.exe	106
PID 3256 wrote to memory of 2192	3256	xlucheats.exe	106
PID 3256 wrote to memory of 4104	3256	xlucheats.exe	110
PID 3256 wrote to memory of 4104	3256	xlucheats.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2668	attrib.exe

C:\Users\Admin\AppData\Local\Temp\xlucheats.exe
"C:\Users\Admin\AppData\Local\Temp\xlucheats.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4036
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\xlucheats.exe"
  2⤵
  - Views/modifies file attributes
  PID:2668
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\xlucheats.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4764
- 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:3896
- 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:4116
- 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:4880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1580
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:940
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3228
- 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:3992
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2192
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\xlucheats.exe" && pause
  2⤵
  PID:4104
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:4440

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
a43e653ffb5ab07940f4bdd9cc8fade4

SHA1
af43d04e3427f111b22dc891c5c7ee8a10ac4123

SHA256
c4c53abb13e99475aebfbe9fec7a8fead81c14c80d9dcc2b81375304f3a683fe

SHA512
62a97e95e1f19a8d4302847110dae44f469877eed6aa8ea22345c6eb25ee220e7d310fa0b7ec5df42356815421c0af7c46a0f1fee8933cc446641800eda6cd1b

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

Filesize
944B

MD5
76692775e4781f0c9f0092f5804cfdb1

SHA1
6740e4e4110028c62282ee1e7eb8be576a2bc23a

SHA256
0c451ff3823450d544066237cbfb08556b7ca36c4a0ea085055f69ab35795b00

SHA512
6e0731e3736594d9e86da2fc33e08a663f29100074cc8d46e2716123c946b9eb150c804c7cf8428cac631e1cff984663d41ce3b5e1e77965bd8e2ecf0742af34

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
eeb6ad386d143f278077171fc01a81e8

SHA1
43cff1bd7240965bfb2f10e47c0cec0f94332e2d

SHA256
59d62f9472b4c00b7cae0ee702789fa2b0042c468e4de9421d2430f9973eb00d

SHA512
b40f003e6d97adaaf05809f06d12df01984943d9eb6c44eaeffef90df8de0040373150c9714b11a42db5189b7064eeed0609a39f6f1feb91b05dd1835333e8f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sgo2bnzj.zqd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3256-71-0x0000020674820000-0x000002067482A000-memory.dmp

Filesize
40KB

Download
memory/3256-35-0x0000020674710000-0x000002067472E000-memory.dmp

Filesize
120KB

Download
memory/3256-90-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download
memory/3256-72-0x0000020674970000-0x0000020674982000-memory.dmp

Filesize
72KB

Download
memory/3256-2-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download
memory/3256-33-0x0000020674790000-0x0000020674806000-memory.dmp

Filesize
472KB

Download
memory/3256-34-0x0000020674740000-0x0000020674790000-memory.dmp

Filesize
320KB

Download
memory/3256-0-0x0000020672060000-0x00000206720A0000-memory.dmp

Filesize
256KB

Download
memory/3256-1-0x00007FFF45B03000-0x00007FFF45B05000-memory.dmp

Filesize
8KB

Download
memory/4764-15-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-12-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-14-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-13-0x0000021024550000-0x0000021024572000-memory.dmp

Filesize
136KB

Download
memory/4764-18-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmp

Filesize
10.8MB

Download