umbral | 261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc

Analysis

max time kernel
150s
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
20-01-2025 02:09

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General

Target

261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe
Size

1.4MB
MD5

2290a5c6cfd6f8bd2e3ad188e7eafa05
SHA1

1b863031e8556e48fa63d233b768148d87dda7c4
SHA256

261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc
SHA512

13310057c8f3e54a5c5c06b5976e6b97d2930191ee6c432e59faaf561968e6e6fa261021ffd2a08b040340f05ae878d7e46fdea4127032fb51fb0b0b2bdd82d7
SSDEEP

24576:PAOmi5Vm+lBnehvY2iPr93CeF1LH1Xt5QezP9tHtR9JSWmsMrlA18VnZAWQvKsoe:E4FdetMVCK1LVXXQezP3+Wgm18VeWouS

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023c68-17.dat	family_umbral
behavioral2/memory/2464-26-0x0000019B7FF90000-0x0000019B7FFD0000-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
4156	powershell.exe
2036	powershell.exe
4940	powershell.exe
2412	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Extreme Injector.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe

Executes dropped EXE 2 IoCs

pid	Process
424	Extreme Injector v3.exe
2464	Extreme Injector.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 4 IoCs

Web Service

T1102

flow	ioc
18	raw.githubusercontent.com
25	discord.com
26	discord.com
17	raw.githubusercontent.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
20	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
4792	cmd.exe
1064	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
228	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1064	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4156	powershell.exe
4156	powershell.exe
2412	powershell.exe
2412	powershell.exe
2036	powershell.exe
2036	powershell.exe
2072	powershell.exe
2072	powershell.exe
4940	powershell.exe
4940	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	Extreme Injector.exe
Token: SeDebugPrivilege	424	Extreme Injector v3.exe
Token: 33	424	Extreme Injector v3.exe
Token: SeIncBasePriorityPrivilege	424	Extreme Injector v3.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	424	Extreme Injector v3.exe
Token: 33	424	Extreme Injector v3.exe
Token: SeIncBasePriorityPrivilege	424	Extreme Injector v3.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2072	powershell.exe
Token: 33	424	Extreme Injector v3.exe
Token: SeIncBasePriorityPrivilege	424	Extreme Injector v3.exe
Token: 33	424	Extreme Injector v3.exe
Token: SeIncBasePriorityPrivilege	424	Extreme Injector v3.exe
Token: SeIncreaseQuotaPrivilege	4800	wmic.exe
Token: SeSecurityPrivilege	4800	wmic.exe
Token: SeTakeOwnershipPrivilege	4800	wmic.exe
Token: SeLoadDriverPrivilege	4800	wmic.exe
Token: SeSystemProfilePrivilege	4800	wmic.exe
Token: SeSystemtimePrivilege	4800	wmic.exe
Token: SeProfSingleProcessPrivilege	4800	wmic.exe
Token: SeIncBasePriorityPrivilege	4800	wmic.exe
Token: SeCreatePagefilePrivilege	4800	wmic.exe
Token: SeBackupPrivilege	4800	wmic.exe
Token: SeRestorePrivilege	4800	wmic.exe
Token: SeShutdownPrivilege	4800	wmic.exe
Token: SeDebugPrivilege	4800	wmic.exe
Token: SeSystemEnvironmentPrivilege	4800	wmic.exe
Token: SeRemoteShutdownPrivilege	4800	wmic.exe
Token: SeUndockPrivilege	4800	wmic.exe
Token: SeManageVolumePrivilege	4800	wmic.exe
Token: 33	4800	wmic.exe
Token: 34	4800	wmic.exe
Token: 35	4800	wmic.exe
Token: 36	4800	wmic.exe
Token: SeIncreaseQuotaPrivilege	4800	wmic.exe
Token: SeSecurityPrivilege	4800	wmic.exe
Token: SeTakeOwnershipPrivilege	4800	wmic.exe
Token: SeLoadDriverPrivilege	4800	wmic.exe
Token: SeSystemProfilePrivilege	4800	wmic.exe
Token: SeSystemtimePrivilege	4800	wmic.exe
Token: SeProfSingleProcessPrivilege	4800	wmic.exe
Token: SeIncBasePriorityPrivilege	4800	wmic.exe
Token: SeCreatePagefilePrivilege	4800	wmic.exe
Token: SeBackupPrivilege	4800	wmic.exe
Token: SeRestorePrivilege	4800	wmic.exe
Token: SeShutdownPrivilege	4800	wmic.exe
Token: SeDebugPrivilege	4800	wmic.exe
Token: SeSystemEnvironmentPrivilege	4800	wmic.exe
Token: SeRemoteShutdownPrivilege	4800	wmic.exe
Token: SeUndockPrivilege	4800	wmic.exe
Token: SeManageVolumePrivilege	4800	wmic.exe
Token: 33	4800	wmic.exe
Token: 34	4800	wmic.exe
Token: 35	4800	wmic.exe
Token: 36	4800	wmic.exe
Token: SeIncreaseQuotaPrivilege	1748	wmic.exe
Token: SeSecurityPrivilege	1748	wmic.exe
Token: SeTakeOwnershipPrivilege	1748	wmic.exe
Token: SeLoadDriverPrivilege	1748	wmic.exe
Token: SeSystemProfilePrivilege	1748	wmic.exe
Token: SeSystemtimePrivilege	1748	wmic.exe
Token: SeProfSingleProcessPrivilege	1748	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3660 wrote to memory of 424	3660	261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe	83
PID 3660 wrote to memory of 424	3660	261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe	83
PID 3660 wrote to memory of 2464	3660	261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe	84
PID 3660 wrote to memory of 2464	3660	261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe	84
PID 2464 wrote to memory of 1652	2464	Extreme Injector.exe	85
PID 2464 wrote to memory of 1652	2464	Extreme Injector.exe	85
PID 2464 wrote to memory of 4156	2464	Extreme Injector.exe	87
PID 2464 wrote to memory of 4156	2464	Extreme Injector.exe	87
PID 2464 wrote to memory of 2412	2464	Extreme Injector.exe	89
PID 2464 wrote to memory of 2412	2464	Extreme Injector.exe	89
PID 2464 wrote to memory of 2036	2464	Extreme Injector.exe	91
PID 2464 wrote to memory of 2036	2464	Extreme Injector.exe	91
PID 2464 wrote to memory of 2072	2464	Extreme Injector.exe	93
PID 2464 wrote to memory of 2072	2464	Extreme Injector.exe	93
PID 2464 wrote to memory of 4800	2464	Extreme Injector.exe	95
PID 2464 wrote to memory of 4800	2464	Extreme Injector.exe	95
PID 2464 wrote to memory of 1748	2464	Extreme Injector.exe	99
PID 2464 wrote to memory of 1748	2464	Extreme Injector.exe	99
PID 2464 wrote to memory of 4216	2464	Extreme Injector.exe	101
PID 2464 wrote to memory of 4216	2464	Extreme Injector.exe	101
PID 2464 wrote to memory of 4940	2464	Extreme Injector.exe	103
PID 2464 wrote to memory of 4940	2464	Extreme Injector.exe	103
PID 2464 wrote to memory of 228	2464	Extreme Injector.exe	105
PID 2464 wrote to memory of 228	2464	Extreme Injector.exe	105
PID 2464 wrote to memory of 4792	2464	Extreme Injector.exe	109
PID 2464 wrote to memory of 4792	2464	Extreme Injector.exe	109
PID 4792 wrote to memory of 1064	4792	cmd.exe	111
PID 4792 wrote to memory of 1064	4792	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1652	attrib.exe

C:\Users\Admin\AppData\Local\Temp\261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe
"C:\Users\Admin\AppData\Local\Temp\261d6fc361222284586e133e152797651ecde629ac3243cf47dba5af1fa4c3cc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3660
- C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe
  "C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:424
- C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe
  "C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe"
    3⤵
    - Views/modifies file attributes
    PID:1652
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4156
- - 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:2412
- - 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:2036
- - 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:2072
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4800
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1748
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:4216
- - 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:4940
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:228
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe" && pause
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4792
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1064

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

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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
1KB

MD5
cd9e196f4f1d3baaf132b5217cf1b183

SHA1
e1d482887e6ffe40b14785f054c4678b64553212

SHA256
d8f03ebe9e6248ad5019cdc675666bb69aef7495f87231a6da0df7a42359fb7a

SHA512
200beef3e0768550f22149a633177903dffb58ac29000aed407fd989b12d593ebb680843205a43508f75057d0cc4f69fdaab3a1201ffa7c7e6800d90f5b72a02

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
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\Temp\Extreme Injector v3.exe

Filesize
1.9MB

MD5
ec801a7d4b72a288ec6c207bb9ff0131

SHA1
32eec2ae1f9e201516fa7fcdc16c4928f7997561

SHA256
b65f40618f584303ca0bcf9b5f88c233cc4237699c0c4bf40ba8facbe8195a46

SHA512
a07dd5e8241de73ce65ff8d74acef4942b85fc45cf6a7baafd3c0f9d330b08e7412f2023ba667e99b40e732a65e8fb4389f7fe73c7b6256ca71e63afe46cdcac

Download Submit
C:\Users\Admin\AppData\Local\Temp\Extreme Injector.exe

Filesize
231KB

MD5
7d4400842d0ded3544bc7892c765816d

SHA1
c5a12688240f8db93e7482d16d145802445bfd71

SHA256
8b30696e9259851325272d57b9452ac2f6037231f1c6895658efb57e0445d064

SHA512
c6ba7dca5825784b680550d2cbc6528bcb0a5c1b6fbf2a65b2c54112a3c39858e01abb58915ff89c9c0011aa4200257659d516de6abd1f1d71e2eca0cadb065a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_14shxlrh.le0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/424-29-0x00000000005C0000-0x00000000007A6000-memory.dmp

Filesize
1.9MB

Download
memory/424-42-0x000000001B720000-0x000000001B75C000-memory.dmp

Filesize
240KB

Download
memory/424-28-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/424-121-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/424-41-0x000000001B5C0000-0x000000001B5D2000-memory.dmp

Filesize
72KB

Download
memory/2464-62-0x0000019B80000000-0x0000019B8001E000-memory.dmp

Filesize
120KB

Download
memory/2464-30-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/2464-60-0x0000019B80080000-0x0000019B800F6000-memory.dmp

Filesize
472KB

Download
memory/2464-61-0x0000019B80100000-0x0000019B80150000-memory.dmp

Filesize
320KB

Download
memory/2464-26-0x0000019B7FF90000-0x0000019B7FFD0000-memory.dmp

Filesize
256KB

Download
memory/2464-99-0x0000019B7FFE0000-0x0000019B7FFEA000-memory.dmp

Filesize
40KB

Download
memory/2464-100-0x0000019B80040000-0x0000019B80052000-memory.dmp

Filesize
72KB

Download
memory/2464-120-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/3660-0-0x00007FFAC2653000-0x00007FFAC2655000-memory.dmp

Filesize
8KB

Download
memory/3660-27-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/3660-3-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/3660-1-0x0000000000540000-0x00000000006AC000-memory.dmp

Filesize
1.4MB

Download
memory/4156-31-0x0000025268A60000-0x0000025268A82000-memory.dmp

Filesize
136KB

Download