umbral | 829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222

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
22/01/2025, 04:15

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General

Target

829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe
Size

230KB
MD5

c1f2ad8d6163d06adab04c985b8d5e2c
SHA1

2ff7f7a1feb743fccb19cd64611322a4facb1a8a
SHA256

829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222
SHA512

ffb31ff8fba0668aaec44cd0c64519265cb7be7a758268dae067927a92e7f1589b1b3a0d3147264f699684c04a71236daa80e5ade2caf7e4ac5affe334870cfb
SSDEEP

6144:VloZM+rIkd8g+EtXHkv/iD4l3RLJX8Qf0+nJUg1zjb8e1mC1Ni:3oZtL+EP8l3RLJX8Qf0+nJUg1zZE

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4556-1-0x00000226EFE20000-0x00000226EFE60000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
744	powershell.exe
952	powershell.exe
3020	powershell.exe
372	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.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
19	discord.com
20	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
5036	cmd.exe
2092	PING.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
2092	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe
372	powershell.exe
372	powershell.exe
744	powershell.exe
744	powershell.exe
952	powershell.exe
952	powershell.exe
536	powershell.exe
536	powershell.exe
3020	powershell.exe
3020	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe
Token: SeIncreaseQuotaPrivilege	3400	wmic.exe
Token: SeSecurityPrivilege	3400	wmic.exe
Token: SeTakeOwnershipPrivilege	3400	wmic.exe
Token: SeLoadDriverPrivilege	3400	wmic.exe
Token: SeSystemProfilePrivilege	3400	wmic.exe
Token: SeSystemtimePrivilege	3400	wmic.exe
Token: SeProfSingleProcessPrivilege	3400	wmic.exe
Token: SeIncBasePriorityPrivilege	3400	wmic.exe
Token: SeCreatePagefilePrivilege	3400	wmic.exe
Token: SeBackupPrivilege	3400	wmic.exe
Token: SeRestorePrivilege	3400	wmic.exe
Token: SeShutdownPrivilege	3400	wmic.exe
Token: SeDebugPrivilege	3400	wmic.exe
Token: SeSystemEnvironmentPrivilege	3400	wmic.exe
Token: SeRemoteShutdownPrivilege	3400	wmic.exe
Token: SeUndockPrivilege	3400	wmic.exe
Token: SeManageVolumePrivilege	3400	wmic.exe
Token: 33	3400	wmic.exe
Token: 34	3400	wmic.exe
Token: 35	3400	wmic.exe
Token: 36	3400	wmic.exe
Token: SeIncreaseQuotaPrivilege	3400	wmic.exe
Token: SeSecurityPrivilege	3400	wmic.exe
Token: SeTakeOwnershipPrivilege	3400	wmic.exe
Token: SeLoadDriverPrivilege	3400	wmic.exe
Token: SeSystemProfilePrivilege	3400	wmic.exe
Token: SeSystemtimePrivilege	3400	wmic.exe
Token: SeProfSingleProcessPrivilege	3400	wmic.exe
Token: SeIncBasePriorityPrivilege	3400	wmic.exe
Token: SeCreatePagefilePrivilege	3400	wmic.exe
Token: SeBackupPrivilege	3400	wmic.exe
Token: SeRestorePrivilege	3400	wmic.exe
Token: SeShutdownPrivilege	3400	wmic.exe
Token: SeDebugPrivilege	3400	wmic.exe
Token: SeSystemEnvironmentPrivilege	3400	wmic.exe
Token: SeRemoteShutdownPrivilege	3400	wmic.exe
Token: SeUndockPrivilege	3400	wmic.exe
Token: SeManageVolumePrivilege	3400	wmic.exe
Token: 33	3400	wmic.exe
Token: 34	3400	wmic.exe
Token: 35	3400	wmic.exe
Token: 36	3400	wmic.exe
Token: SeDebugPrivilege	372	powershell.exe
Token: SeDebugPrivilege	744	powershell.exe
Token: SeDebugPrivilege	952	powershell.exe
Token: SeDebugPrivilege	536	powershell.exe
Token: SeIncreaseQuotaPrivilege	2504	wmic.exe
Token: SeSecurityPrivilege	2504	wmic.exe
Token: SeTakeOwnershipPrivilege	2504	wmic.exe
Token: SeLoadDriverPrivilege	2504	wmic.exe
Token: SeSystemProfilePrivilege	2504	wmic.exe
Token: SeSystemtimePrivilege	2504	wmic.exe
Token: SeProfSingleProcessPrivilege	2504	wmic.exe
Token: SeIncBasePriorityPrivilege	2504	wmic.exe
Token: SeCreatePagefilePrivilege	2504	wmic.exe
Token: SeBackupPrivilege	2504	wmic.exe
Token: SeRestorePrivilege	2504	wmic.exe
Token: SeShutdownPrivilege	2504	wmic.exe
Token: SeDebugPrivilege	2504	wmic.exe
Token: SeSystemEnvironmentPrivilege	2504	wmic.exe
Token: SeRemoteShutdownPrivilege	2504	wmic.exe
Token: SeUndockPrivilege	2504	wmic.exe
Token: SeManageVolumePrivilege	2504	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 3400	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	84
PID 4556 wrote to memory of 3400	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	84
PID 4556 wrote to memory of 4100	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	87
PID 4556 wrote to memory of 4100	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	87
PID 4556 wrote to memory of 372	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	89
PID 4556 wrote to memory of 372	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	89
PID 4556 wrote to memory of 744	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	91
PID 4556 wrote to memory of 744	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	91
PID 4556 wrote to memory of 952	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	93
PID 4556 wrote to memory of 952	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	93
PID 4556 wrote to memory of 536	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	95
PID 4556 wrote to memory of 536	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	95
PID 4556 wrote to memory of 2504	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	97
PID 4556 wrote to memory of 2504	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	97
PID 4556 wrote to memory of 4524	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	99
PID 4556 wrote to memory of 4524	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	99
PID 4556 wrote to memory of 3592	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	101
PID 4556 wrote to memory of 3592	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	101
PID 4556 wrote to memory of 3020	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	103
PID 4556 wrote to memory of 3020	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	103
PID 4556 wrote to memory of 3308	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	105
PID 4556 wrote to memory of 3308	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	105
PID 4556 wrote to memory of 5036	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	107
PID 4556 wrote to memory of 5036	4556	829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe	107
PID 5036 wrote to memory of 2092	5036	cmd.exe	109
PID 5036 wrote to memory of 2092	5036	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4100	attrib.exe

C:\Users\Admin\AppData\Local\Temp\829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe
"C:\Users\Admin\AppData\Local\Temp\829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3400
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe"
  2⤵
  - Views/modifies file attributes
  PID:4100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:372
- 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:744
- 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:952
- 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:536
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4524
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3592
- 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:3020
- 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\829fb38be0b18e34559c55621008881b6a1b351f48fcdbc04624cc653e7c7222.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2092

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

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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
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
985b3105d8889886d6fd953575c54e08

SHA1
0f9a041240a344d82bac0a180520e7982c15f3cd

SHA256
5178fdd457eb3eb25c8f72ed4c22c582a83de0d324db66d0446d660f226e944d

SHA512
0fd59bc4886b70aa3b7eeeaa23229b7fdc93410ca7f8452860e4a1bbda2559eaa5e4b05c3ec2d85f7d648daf3c16741f4c2c18f2dd3bae4cc4a4e57ae4f665b0

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
45ad40f012b09e141955482368549640

SHA1
3f9cd15875c1e397c3b2b5592805577ae88a96cb

SHA256
ea3b59172f1a33677f9cb3843fb4d6093b806d3a7cf2f3c6d4692f5421f656ce

SHA512
3de08f8affca1c1450088f560776cf3d65146cadac43c06eb922c7b3cea436e519966cf38458303ffeb1a58c53f8952cffda6c34216fda7594e014b516e83b33

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f0r3hehr.flh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/372-12-0x000001876F090000-0x000001876F0B2000-memory.dmp

Filesize
136KB

Download
memory/372-13-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/372-14-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/372-15-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/372-18-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/4556-34-0x00000226F2700000-0x00000226F2750000-memory.dmp

Filesize
320KB

Download
memory/4556-33-0x00000226F2680000-0x00000226F26F6000-memory.dmp

Filesize
472KB

Download
memory/4556-35-0x00000226F2620000-0x00000226F263E000-memory.dmp

Filesize
120KB

Download
memory/4556-1-0x00000226EFE20000-0x00000226EFE60000-memory.dmp

Filesize
256KB

Download
memory/4556-0-0x00007FF9F5A73000-0x00007FF9F5A75000-memory.dmp

Filesize
8KB

Download
memory/4556-72-0x00000226F3500000-0x00000226F350A000-memory.dmp

Filesize
40KB

Download
memory/4556-73-0x00000226F3530000-0x00000226F3542000-memory.dmp

Filesize
72KB

Download
memory/4556-2-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/4556-89-0x00007FF9F5A73000-0x00007FF9F5A75000-memory.dmp

Filesize
8KB

Download
memory/4556-90-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download
memory/4556-95-0x00000226F21F0000-0x00000226F22F2000-memory.dmp

Filesize
1.0MB

Download
memory/4556-96-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

Filesize
10.8MB

Download