umbral | 0c70a683dc7964b4a37b655928d87b172043c8582c3cfce38f69901ec53b3b88

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 18:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Slinky/slink/load.exe
Size

17.8MB
MD5

86d4579d1dbfd7be291f5d198d805398
SHA1

8636bb288af7549f10d50eba8f8a4489ffee4222
SHA256

d0e0881cc1edb247c39628fbcaec00fae6ec3617bde0869538aed888f4e6a63a
SHA512

0ae111f7761778429b6e93ecbd4547a3280c52dfba781c42cf37e046cfe440d69d49a3caa8d3a58f6013b644e80e908fdbd7415340b764f6a4900806aceb877c
SSDEEP

393216:YQsUy4Ln/msXQDkaxfqTJ9h7yXVHM5dzI2UeHqrCMMDcbiK3:nsun/3GTxW9h7G5M7z2eHqeMMDcWK3

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b91-6.dat	family_umbral
behavioral2/memory/4580-15-0x000001A1A2590000-0x000001A1A25D0000-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
996	powershell.exe
3596	powershell.exe
4752	powershell.exe
816	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	load.exe

Executes dropped EXE 2 IoCs

pid	Process
4580	Slinky_Dependences.exe
4192	load.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
21	discord.com
22	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
11	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
4652	cmd.exe
1680	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1936	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1680	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4580	Slinky_Dependences.exe
996	powershell.exe
996	powershell.exe
816	powershell.exe
816	powershell.exe
3596	powershell.exe
3596	powershell.exe
1172	powershell.exe
1172	powershell.exe
4752	powershell.exe
4752	powershell.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe
4192	load.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4580	Slinky_Dependences.exe
Token: SeIncreaseQuotaPrivilege	2644	wmic.exe
Token: SeSecurityPrivilege	2644	wmic.exe
Token: SeTakeOwnershipPrivilege	2644	wmic.exe
Token: SeLoadDriverPrivilege	2644	wmic.exe
Token: SeSystemProfilePrivilege	2644	wmic.exe
Token: SeSystemtimePrivilege	2644	wmic.exe
Token: SeProfSingleProcessPrivilege	2644	wmic.exe
Token: SeIncBasePriorityPrivilege	2644	wmic.exe
Token: SeCreatePagefilePrivilege	2644	wmic.exe
Token: SeBackupPrivilege	2644	wmic.exe
Token: SeRestorePrivilege	2644	wmic.exe
Token: SeShutdownPrivilege	2644	wmic.exe
Token: SeDebugPrivilege	2644	wmic.exe
Token: SeSystemEnvironmentPrivilege	2644	wmic.exe
Token: SeRemoteShutdownPrivilege	2644	wmic.exe
Token: SeUndockPrivilege	2644	wmic.exe
Token: SeManageVolumePrivilege	2644	wmic.exe
Token: 33	2644	wmic.exe
Token: 34	2644	wmic.exe
Token: 35	2644	wmic.exe
Token: 36	2644	wmic.exe
Token: SeIncreaseQuotaPrivilege	2644	wmic.exe
Token: SeSecurityPrivilege	2644	wmic.exe
Token: SeTakeOwnershipPrivilege	2644	wmic.exe
Token: SeLoadDriverPrivilege	2644	wmic.exe
Token: SeSystemProfilePrivilege	2644	wmic.exe
Token: SeSystemtimePrivilege	2644	wmic.exe
Token: SeProfSingleProcessPrivilege	2644	wmic.exe
Token: SeIncBasePriorityPrivilege	2644	wmic.exe
Token: SeCreatePagefilePrivilege	2644	wmic.exe
Token: SeBackupPrivilege	2644	wmic.exe
Token: SeRestorePrivilege	2644	wmic.exe
Token: SeShutdownPrivilege	2644	wmic.exe
Token: SeDebugPrivilege	2644	wmic.exe
Token: SeSystemEnvironmentPrivilege	2644	wmic.exe
Token: SeRemoteShutdownPrivilege	2644	wmic.exe
Token: SeUndockPrivilege	2644	wmic.exe
Token: SeManageVolumePrivilege	2644	wmic.exe
Token: 33	2644	wmic.exe
Token: 34	2644	wmic.exe
Token: 35	2644	wmic.exe
Token: 36	2644	wmic.exe
Token: SeDebugPrivilege	996	powershell.exe
Token: SeDebugPrivilege	816	powershell.exe
Token: SeDebugPrivilege	3596	powershell.exe
Token: SeDebugPrivilege	1172	powershell.exe
Token: SeIncreaseQuotaPrivilege	624	wmic.exe
Token: SeSecurityPrivilege	624	wmic.exe
Token: SeTakeOwnershipPrivilege	624	wmic.exe
Token: SeLoadDriverPrivilege	624	wmic.exe
Token: SeSystemProfilePrivilege	624	wmic.exe
Token: SeSystemtimePrivilege	624	wmic.exe
Token: SeProfSingleProcessPrivilege	624	wmic.exe
Token: SeIncBasePriorityPrivilege	624	wmic.exe
Token: SeCreatePagefilePrivilege	624	wmic.exe
Token: SeBackupPrivilege	624	wmic.exe
Token: SeRestorePrivilege	624	wmic.exe
Token: SeShutdownPrivilege	624	wmic.exe
Token: SeDebugPrivilege	624	wmic.exe
Token: SeSystemEnvironmentPrivilege	624	wmic.exe
Token: SeRemoteShutdownPrivilege	624	wmic.exe
Token: SeUndockPrivilege	624	wmic.exe
Token: SeManageVolumePrivilege	624	wmic.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 4580	3980	load.exe	82
PID 3980 wrote to memory of 4580	3980	load.exe	82
PID 4580 wrote to memory of 2644	4580	Slinky_Dependences.exe	84
PID 4580 wrote to memory of 2644	4580	Slinky_Dependences.exe	84
PID 4580 wrote to memory of 1528	4580	Slinky_Dependences.exe	87
PID 4580 wrote to memory of 1528	4580	Slinky_Dependences.exe	87
PID 4580 wrote to memory of 996	4580	Slinky_Dependences.exe	89
PID 4580 wrote to memory of 996	4580	Slinky_Dependences.exe	89
PID 4580 wrote to memory of 816	4580	Slinky_Dependences.exe	91
PID 4580 wrote to memory of 816	4580	Slinky_Dependences.exe	91
PID 4580 wrote to memory of 3596	4580	Slinky_Dependences.exe	93
PID 4580 wrote to memory of 3596	4580	Slinky_Dependences.exe	93
PID 4580 wrote to memory of 1172	4580	Slinky_Dependences.exe	95
PID 4580 wrote to memory of 1172	4580	Slinky_Dependences.exe	95
PID 4580 wrote to memory of 624	4580	Slinky_Dependences.exe	97
PID 4580 wrote to memory of 624	4580	Slinky_Dependences.exe	97
PID 4580 wrote to memory of 3740	4580	Slinky_Dependences.exe	99
PID 4580 wrote to memory of 3740	4580	Slinky_Dependences.exe	99
PID 4580 wrote to memory of 4456	4580	Slinky_Dependences.exe	101
PID 4580 wrote to memory of 4456	4580	Slinky_Dependences.exe	101
PID 4580 wrote to memory of 4752	4580	Slinky_Dependences.exe	103
PID 4580 wrote to memory of 4752	4580	Slinky_Dependences.exe	103
PID 4580 wrote to memory of 1936	4580	Slinky_Dependences.exe	105
PID 4580 wrote to memory of 1936	4580	Slinky_Dependences.exe	105
PID 4580 wrote to memory of 4652	4580	Slinky_Dependences.exe	107
PID 4580 wrote to memory of 4652	4580	Slinky_Dependences.exe	107
PID 4652 wrote to memory of 1680	4652	cmd.exe	109
PID 4652 wrote to memory of 1680	4652	cmd.exe	109
PID 3980 wrote to memory of 4192	3980	load.exe	110
PID 3980 wrote to memory of 4192	3980	load.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1528	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Slinky\slink\load.exe
"C:\Users\Admin\AppData\Local\Temp\Slinky\slink\load.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4580
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2644
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe"
    3⤵
    - Views/modifies file attributes
    PID:1528
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:996
- - 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
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:816
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3596
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1172
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:624
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:3740
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:4456
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:4752
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:1936
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe" && pause
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4652
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1680
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\load.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\load.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:4192

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

Query Registry

T1012

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

Replay Monitor

Loading Replay Monitor...

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
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
948B

MD5
47aec0ae6e0dfab5f91c35cd65d2c56a

SHA1
0bbe13618bdc0c402539cdfca81471aa501f5cad

SHA256
8f31385012b247db2cc50ecb164208fbbf5f8cdf7bfc951e8c2c8ad5fb04cf0b

SHA512
c4b7184a85c1d594012ba86390e651439d6cae63c76b94432faaaea410e4ef9bc62d88e68adf8f3abbe36e18ef9e4dc46c3e31a0d72089f98a22f04c8b4a8f12

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
cd35903cbe767d99a1ddd5a4a12c47d2

SHA1
68d85fc6311ab1281e93e9185f3b35ac4b079307

SHA256
9b661b53a17fd5d8d1b907266f217c49c15f5626b17bb2048debb8ddc363a742

SHA512
325ed7a6382b9bcc4b94717682fbd17f277a45f408dc6d919e90ac4c2f2590eb3e3eedcd6f04303155cd55675149e8106d58385b94c26fc646fcedee59257b0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Slinky_Dependences.exe

Filesize
229KB

MD5
f8286606b9be55be61dc21f3c8684bce

SHA1
d5768631ef573e5532e39820744ec3948cba0188

SHA256
069ec421fc87771c32dbbda60b242fde015a5a9492da07357edfbef984de1dd7

SHA512
1d14fd7a2435d7be4a12b6cde7eba6d06a388384ed9dd4227988a048912f44d2e932d9ea0c4794414ace615998224cb28d6c299c4dae4b0471381e101ac6c6a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\load.exe

Filesize
18.4MB

MD5
38019371c7cfc54d0c08629da0384a1f

SHA1
87509b8aa5549f22b53362588c624b010cfa5b26

SHA256
d4f6bfde46ea2394570619fa89f8cdc8ac00b297179fe8831558530ec48492f1

SHA512
75f204fa1be253a68678ec7a6637a8db1b02346fb429365500427e493fd0c2b2d2b24a4ae30de3f777c239af507c141f979b6012c8b394f663d073f2850d682d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nokemqbt.rza.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/996-17-0x000002765F140000-0x000002765F162000-memory.dmp

Filesize
136KB

Download
memory/4580-44-0x000001A1BCCC0000-0x000001A1BCD10000-memory.dmp

Filesize
320KB

Download
memory/4580-45-0x000001A1BCB50000-0x000001A1BCB6E000-memory.dmp

Filesize
120KB

Download
memory/4580-43-0x000001A1BCD40000-0x000001A1BCDB6000-memory.dmp

Filesize
472KB

Download
memory/4580-16-0x00007FF92BC00000-0x00007FF92C6C1000-memory.dmp

Filesize
10.8MB

Download
memory/4580-82-0x000001A1BCB80000-0x000001A1BCB8A000-memory.dmp

Filesize
40KB

Download
memory/4580-83-0x000001A1BCD10000-0x000001A1BCD22000-memory.dmp

Filesize
72KB

Download
memory/4580-15-0x000001A1A2590000-0x000001A1A25D0000-memory.dmp

Filesize
256KB

Download
memory/4580-103-0x00007FF92BC00000-0x00007FF92C6C1000-memory.dmp

Filesize
10.8MB

Download
memory/4580-14-0x00007FF92BC03000-0x00007FF92BC05000-memory.dmp

Filesize
8KB

Download