umbral | 0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 12:57

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General

Target

0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
Size

229KB
MD5

ae3713305401315a3b520e84fb786fe5
SHA1

914bd258c204e4cddab9dc0dbfb9c7134659ad57
SHA256

0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb
SHA512

ae29d0c4c9106dcfbd4a212968d7d8b87236c2f39ce37435d3a658fe1b42875e44cc65c98f818391a8051312811b51da747efef5fa347f3a053b58454bd1e155
SSDEEP

6144:dloZM3fsXtioRkts/cnnK6cMlpGZ7lTwk7tiTlwsJtSb8e1mdi:/oZ1tlRk83MlpGZ7lTwk7tiTlwsJIH

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4776-0-0x000002447A150000-0x000002447A190000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1552	powershell.exe
3188	powershell.exe
3224	powershell.exe
1376	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.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
3	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
5048	cmd.exe
2112	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2940	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2112	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
1376	powershell.exe
1376	powershell.exe
3188	powershell.exe
3188	powershell.exe
3224	powershell.exe
3224	powershell.exe
2744	powershell.exe
2744	powershell.exe
1552	powershell.exe
1552	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
Token: SeIncreaseQuotaPrivilege	4832	wmic.exe
Token: SeSecurityPrivilege	4832	wmic.exe
Token: SeTakeOwnershipPrivilege	4832	wmic.exe
Token: SeLoadDriverPrivilege	4832	wmic.exe
Token: SeSystemProfilePrivilege	4832	wmic.exe
Token: SeSystemtimePrivilege	4832	wmic.exe
Token: SeProfSingleProcessPrivilege	4832	wmic.exe
Token: SeIncBasePriorityPrivilege	4832	wmic.exe
Token: SeCreatePagefilePrivilege	4832	wmic.exe
Token: SeBackupPrivilege	4832	wmic.exe
Token: SeRestorePrivilege	4832	wmic.exe
Token: SeShutdownPrivilege	4832	wmic.exe
Token: SeDebugPrivilege	4832	wmic.exe
Token: SeSystemEnvironmentPrivilege	4832	wmic.exe
Token: SeRemoteShutdownPrivilege	4832	wmic.exe
Token: SeUndockPrivilege	4832	wmic.exe
Token: SeManageVolumePrivilege	4832	wmic.exe
Token: 33	4832	wmic.exe
Token: 34	4832	wmic.exe
Token: 35	4832	wmic.exe
Token: 36	4832	wmic.exe
Token: SeIncreaseQuotaPrivilege	4832	wmic.exe
Token: SeSecurityPrivilege	4832	wmic.exe
Token: SeTakeOwnershipPrivilege	4832	wmic.exe
Token: SeLoadDriverPrivilege	4832	wmic.exe
Token: SeSystemProfilePrivilege	4832	wmic.exe
Token: SeSystemtimePrivilege	4832	wmic.exe
Token: SeProfSingleProcessPrivilege	4832	wmic.exe
Token: SeIncBasePriorityPrivilege	4832	wmic.exe
Token: SeCreatePagefilePrivilege	4832	wmic.exe
Token: SeBackupPrivilege	4832	wmic.exe
Token: SeRestorePrivilege	4832	wmic.exe
Token: SeShutdownPrivilege	4832	wmic.exe
Token: SeDebugPrivilege	4832	wmic.exe
Token: SeSystemEnvironmentPrivilege	4832	wmic.exe
Token: SeRemoteShutdownPrivilege	4832	wmic.exe
Token: SeUndockPrivilege	4832	wmic.exe
Token: SeManageVolumePrivilege	4832	wmic.exe
Token: 33	4832	wmic.exe
Token: 34	4832	wmic.exe
Token: 35	4832	wmic.exe
Token: 36	4832	wmic.exe
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	3188	powershell.exe
Token: SeDebugPrivilege	3224	powershell.exe
Token: SeDebugPrivilege	2744	powershell.exe
Token: SeIncreaseQuotaPrivilege	3564	wmic.exe
Token: SeSecurityPrivilege	3564	wmic.exe
Token: SeTakeOwnershipPrivilege	3564	wmic.exe
Token: SeLoadDriverPrivilege	3564	wmic.exe
Token: SeSystemProfilePrivilege	3564	wmic.exe
Token: SeSystemtimePrivilege	3564	wmic.exe
Token: SeProfSingleProcessPrivilege	3564	wmic.exe
Token: SeIncBasePriorityPrivilege	3564	wmic.exe
Token: SeCreatePagefilePrivilege	3564	wmic.exe
Token: SeBackupPrivilege	3564	wmic.exe
Token: SeRestorePrivilege	3564	wmic.exe
Token: SeShutdownPrivilege	3564	wmic.exe
Token: SeDebugPrivilege	3564	wmic.exe
Token: SeSystemEnvironmentPrivilege	3564	wmic.exe
Token: SeRemoteShutdownPrivilege	3564	wmic.exe
Token: SeUndockPrivilege	3564	wmic.exe
Token: SeManageVolumePrivilege	3564	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 4832	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	83
PID 4776 wrote to memory of 4832	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	83
PID 4776 wrote to memory of 972	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	88
PID 4776 wrote to memory of 972	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	88
PID 4776 wrote to memory of 1376	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	90
PID 4776 wrote to memory of 1376	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	90
PID 4776 wrote to memory of 3188	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	92
PID 4776 wrote to memory of 3188	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	92
PID 4776 wrote to memory of 3224	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	94
PID 4776 wrote to memory of 3224	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	94
PID 4776 wrote to memory of 2744	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	96
PID 4776 wrote to memory of 2744	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	96
PID 4776 wrote to memory of 3564	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	98
PID 4776 wrote to memory of 3564	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	98
PID 4776 wrote to memory of 4076	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	100
PID 4776 wrote to memory of 4076	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	100
PID 4776 wrote to memory of 2284	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	102
PID 4776 wrote to memory of 2284	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	102
PID 4776 wrote to memory of 1552	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	104
PID 4776 wrote to memory of 1552	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	104
PID 4776 wrote to memory of 2940	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	106
PID 4776 wrote to memory of 2940	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	106
PID 4776 wrote to memory of 5048	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	108
PID 4776 wrote to memory of 5048	4776	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	108
PID 5048 wrote to memory of 2112	5048	cmd.exe	110
PID 5048 wrote to memory of 2112	5048	cmd.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
972	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
"C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4832
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe"
  2⤵
  - Views/modifies file attributes
  PID:972
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1376
- 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:3188
- 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:3224
- 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:2744
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3564
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4076
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2284
- 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:1552
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2940
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2112

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

Exfiltration

Impact

Replay Monitor

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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
c9b6705519e1eef08f86c4ba5f4286f3

SHA1
6c6b179e452ecee2673a1d4fe128f1c06f70577f

SHA256
0f9cad44a79126871580e19b01dc3f880c5173b1faaf8b9018d5d1f829714705

SHA512
6d8f85a7a8b0b124530f36a157cd0441b5c1eacdc35e274af9fbf0569d03d1d5e468651a5b2425f0215c282ecfa7b1ffeaeeaf18612822f00bd14306d30640c7

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
ca58d1913d3261f116a299095e04f734

SHA1
941d13d0c8c65adb6513f23991acfa0d62facdea

SHA256
755daf72f2f5e983abb009c3b1eef4c7c660999f5ff581545bbcae7088c17c69

SHA512
87b0d8c9a5348235e9ad6416e09665764db1af408bf763857dc40e39411fa0cf405e3e8b9f0b8540c72aa874059d1dee865aa0cff8dba0fde5779ec9480b5e40

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hihiakyr.yev.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1376-4-0x00007FF82E530000-0x00007FF82EFF1000-memory.dmp

Filesize
10.8MB

Download
memory/1376-17-0x00007FF82E530000-0x00007FF82EFF1000-memory.dmp

Filesize
10.8MB

Download
memory/1376-7-0x0000026074960000-0x0000026074982000-memory.dmp

Filesize
136KB

Download
memory/1376-3-0x00007FF82E530000-0x00007FF82EFF1000-memory.dmp

Filesize
10.8MB

Download
memory/4776-1-0x00007FF82E533000-0x00007FF82E535000-memory.dmp

Filesize
8KB

Download
memory/4776-32-0x000002447C910000-0x000002447C986000-memory.dmp

Filesize
472KB

Download
memory/4776-33-0x000002447C890000-0x000002447C8E0000-memory.dmp

Filesize
320KB

Download
memory/4776-34-0x000002447BEE0000-0x000002447BEFE000-memory.dmp

Filesize
120KB

Download
memory/4776-2-0x00007FF82E530000-0x00007FF82EFF1000-memory.dmp

Filesize
10.8MB

Download
memory/4776-70-0x000002447C730000-0x000002447C73A000-memory.dmp

Filesize
40KB

Download
memory/4776-71-0x000002447C8E0000-0x000002447C8F2000-memory.dmp

Filesize
72KB

Download
memory/4776-0-0x000002447A150000-0x000002447A190000-memory.dmp

Filesize
256KB

Download
memory/4776-89-0x00007FF82E530000-0x00007FF82EFF1000-memory.dmp

Filesize
10.8MB

Download