umbral | 10a0c83bc6522b597850d3871616715533031cba948807d3831b5a239d5d7f9b

Analysis

max time kernel
149s
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
30-11-2024 07:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

osintbeta.exe
Size

631KB
MD5

651f9b8d2e6d57a5ad192c4f9e6bc5fe
SHA1

351d05c661abc76b335cb99b620a8a81367e41de
SHA256

10a0c83bc6522b597850d3871616715533031cba948807d3831b5a239d5d7f9b
SHA512

9573a78740c3ada200d282c34ffb07bc4f5549a7ddd5dcdf5f0070aba5be5cc0bdc0ab1bc54bd0283a43bc34febc5e0c7fb1ade6bb5173e598890be76445256b
SSDEEP

12288:hoZtL+EP8l1xMw2xpamPyAxVkghNiMdRC:fI8rxMw2xpamPyAxVkgriMdA

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1508-0-0x000001BB4D6B0000-0x000001BB4D754000-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
1092	powershell.exe
5004	powershell.exe
2408	powershell.exe
4852	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	osintbeta.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
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
7	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
1236	PING.EXE
624	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3308	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1236	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1508	osintbeta.exe
1092	powershell.exe
1092	powershell.exe
5004	powershell.exe
5004	powershell.exe
2408	powershell.exe
2408	powershell.exe
2244	powershell.exe
2244	powershell.exe
4852	powershell.exe
4852	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	osintbeta.exe
Token: SeIncreaseQuotaPrivilege	3256	wmic.exe
Token: SeSecurityPrivilege	3256	wmic.exe
Token: SeTakeOwnershipPrivilege	3256	wmic.exe
Token: SeLoadDriverPrivilege	3256	wmic.exe
Token: SeSystemProfilePrivilege	3256	wmic.exe
Token: SeSystemtimePrivilege	3256	wmic.exe
Token: SeProfSingleProcessPrivilege	3256	wmic.exe
Token: SeIncBasePriorityPrivilege	3256	wmic.exe
Token: SeCreatePagefilePrivilege	3256	wmic.exe
Token: SeBackupPrivilege	3256	wmic.exe
Token: SeRestorePrivilege	3256	wmic.exe
Token: SeShutdownPrivilege	3256	wmic.exe
Token: SeDebugPrivilege	3256	wmic.exe
Token: SeSystemEnvironmentPrivilege	3256	wmic.exe
Token: SeRemoteShutdownPrivilege	3256	wmic.exe
Token: SeUndockPrivilege	3256	wmic.exe
Token: SeManageVolumePrivilege	3256	wmic.exe
Token: 33	3256	wmic.exe
Token: 34	3256	wmic.exe
Token: 35	3256	wmic.exe
Token: 36	3256	wmic.exe
Token: SeIncreaseQuotaPrivilege	3256	wmic.exe
Token: SeSecurityPrivilege	3256	wmic.exe
Token: SeTakeOwnershipPrivilege	3256	wmic.exe
Token: SeLoadDriverPrivilege	3256	wmic.exe
Token: SeSystemProfilePrivilege	3256	wmic.exe
Token: SeSystemtimePrivilege	3256	wmic.exe
Token: SeProfSingleProcessPrivilege	3256	wmic.exe
Token: SeIncBasePriorityPrivilege	3256	wmic.exe
Token: SeCreatePagefilePrivilege	3256	wmic.exe
Token: SeBackupPrivilege	3256	wmic.exe
Token: SeRestorePrivilege	3256	wmic.exe
Token: SeShutdownPrivilege	3256	wmic.exe
Token: SeDebugPrivilege	3256	wmic.exe
Token: SeSystemEnvironmentPrivilege	3256	wmic.exe
Token: SeRemoteShutdownPrivilege	3256	wmic.exe
Token: SeUndockPrivilege	3256	wmic.exe
Token: SeManageVolumePrivilege	3256	wmic.exe
Token: 33	3256	wmic.exe
Token: 34	3256	wmic.exe
Token: 35	3256	wmic.exe
Token: 36	3256	wmic.exe
Token: SeDebugPrivilege	1092	powershell.exe
Token: SeDebugPrivilege	5004	powershell.exe
Token: SeDebugPrivilege	2408	powershell.exe
Token: SeDebugPrivilege	2244	powershell.exe
Token: SeIncreaseQuotaPrivilege	3332	wmic.exe
Token: SeSecurityPrivilege	3332	wmic.exe
Token: SeTakeOwnershipPrivilege	3332	wmic.exe
Token: SeLoadDriverPrivilege	3332	wmic.exe
Token: SeSystemProfilePrivilege	3332	wmic.exe
Token: SeSystemtimePrivilege	3332	wmic.exe
Token: SeProfSingleProcessPrivilege	3332	wmic.exe
Token: SeIncBasePriorityPrivilege	3332	wmic.exe
Token: SeCreatePagefilePrivilege	3332	wmic.exe
Token: SeBackupPrivilege	3332	wmic.exe
Token: SeRestorePrivilege	3332	wmic.exe
Token: SeShutdownPrivilege	3332	wmic.exe
Token: SeDebugPrivilege	3332	wmic.exe
Token: SeSystemEnvironmentPrivilege	3332	wmic.exe
Token: SeRemoteShutdownPrivilege	3332	wmic.exe
Token: SeUndockPrivilege	3332	wmic.exe
Token: SeManageVolumePrivilege	3332	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 3256	1508	osintbeta.exe	83
PID 1508 wrote to memory of 3256	1508	osintbeta.exe	83
PID 1508 wrote to memory of 884	1508	osintbeta.exe	86
PID 1508 wrote to memory of 884	1508	osintbeta.exe	86
PID 1508 wrote to memory of 1092	1508	osintbeta.exe	88
PID 1508 wrote to memory of 1092	1508	osintbeta.exe	88
PID 1508 wrote to memory of 5004	1508	osintbeta.exe	90
PID 1508 wrote to memory of 5004	1508	osintbeta.exe	90
PID 1508 wrote to memory of 2408	1508	osintbeta.exe	92
PID 1508 wrote to memory of 2408	1508	osintbeta.exe	92
PID 1508 wrote to memory of 2244	1508	osintbeta.exe	94
PID 1508 wrote to memory of 2244	1508	osintbeta.exe	94
PID 1508 wrote to memory of 3332	1508	osintbeta.exe	96
PID 1508 wrote to memory of 3332	1508	osintbeta.exe	96
PID 1508 wrote to memory of 628	1508	osintbeta.exe	98
PID 1508 wrote to memory of 628	1508	osintbeta.exe	98
PID 1508 wrote to memory of 1292	1508	osintbeta.exe	100
PID 1508 wrote to memory of 1292	1508	osintbeta.exe	100
PID 1508 wrote to memory of 4852	1508	osintbeta.exe	102
PID 1508 wrote to memory of 4852	1508	osintbeta.exe	102
PID 1508 wrote to memory of 3308	1508	osintbeta.exe	104
PID 1508 wrote to memory of 3308	1508	osintbeta.exe	104
PID 1508 wrote to memory of 624	1508	osintbeta.exe	108
PID 1508 wrote to memory of 624	1508	osintbeta.exe	108
PID 624 wrote to memory of 1236	624	cmd.exe	110
PID 624 wrote to memory of 1236	624	cmd.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
884	attrib.exe

C:\Users\Admin\AppData\Local\Temp\osintbeta.exe
"C:\Users\Admin\AppData\Local\Temp\osintbeta.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3256
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\osintbeta.exe"
  2⤵
  - Views/modifies file attributes
  PID:884
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\osintbeta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1092
- 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:5004
- 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:2408
- 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:2244
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3332
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:628
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1292
- 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:4852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3308
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\osintbeta.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1236

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

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
17d8127be94d3c1b6fcc9a4ed585003e

SHA1
789874fcc7c778c723f3e89822d8cc8750c6c4c8

SHA256
ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

SHA512
bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

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
2984662ba3f86d7fcf26758b5b76754d

SHA1
bc2a43ffd898222ee84406313f3834f226928379

SHA256
f0815f797b0c1829745dd65985f28d459688f91ceb2f3d76fed2d4309589bcde

SHA512
a06251a7a14559ebf5627a3c6b03fda9ded1d4ee44991283c824ccf5011cdf67665696d2d9b23507cbb3e3b9943b9e9f79ef28d3657eb61fb99920225417ab11

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kfpu1so4.u2c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1092-3-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/1092-4-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/1092-15-0x000001CAC3740000-0x000001CAC3762000-memory.dmp

Filesize
136KB

Download
memory/1092-10-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/1092-18-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/1508-34-0x000001BB4F450000-0x000001BB4F4A0000-memory.dmp

Filesize
320KB

Download
memory/1508-1-0x00007FFD857F3000-0x00007FFD857F5000-memory.dmp

Filesize
8KB

Download
memory/1508-35-0x000001BB4DBB0000-0x000001BB4DBCE000-memory.dmp

Filesize
120KB

Download
memory/1508-33-0x000001BB67EC0000-0x000001BB67F36000-memory.dmp

Filesize
472KB

Download
memory/1508-2-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/1508-74-0x000001BB4DC40000-0x000001BB4DC4A000-memory.dmp

Filesize
40KB

Download
memory/1508-75-0x000001BB4F420000-0x000001BB4F432000-memory.dmp

Filesize
72KB

Download
memory/1508-0-0x000001BB4D6B0000-0x000001BB4D754000-memory.dmp

Filesize
656KB

Download
memory/1508-91-0x00007FFD857F3000-0x00007FFD857F5000-memory.dmp

Filesize
8KB

Download
memory/1508-96-0x000001BB680A0000-0x000001BB68249000-memory.dmp

Filesize
1.7MB

Download
memory/1508-97-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

Filesize
10.8MB

Download
memory/2244-71-0x000002C16B0B0000-0x000002C16B0F8000-memory.dmp

Filesize
288KB

Download
memory/2408-59-0x00000156BC650000-0x00000156BC698000-memory.dmp

Filesize
288KB

Download