umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
135s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 02:59

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General

Target

b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe
Size

231KB
MD5

2a9d5da0bb69d53e1b68178bc63e9390
SHA1

b1170f7ca36ea613188a272dc8ff8720a586de3a
SHA256

b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902
SHA512

372288f96c8d39cba9529e7c44ce4b083eddf50dc3c3317b7b97c02d07018cdc2e0913da3e8309d548f80d68c95b9dd65e4febd4d7ca3b4d6a8df3360cf6aca3
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4ZvHYe5xypXKYZd8ZC6lY8e1mGi:joZtL+EP8pHYe5xypXKYZd8dk2

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2304-1-0x000001E6F4ED0000-0x000001E6F4F10000-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

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2204	powershell.exe
4492	powershell.exe
1360	powershell.exe
4872	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
26	discord.com
27	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
2692	cmd.exe
2652	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4348	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2652	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe
2204	powershell.exe
2204	powershell.exe
4492	powershell.exe
4492	powershell.exe
1360	powershell.exe
1360	powershell.exe
3384	powershell.exe
3384	powershell.exe
4872	powershell.exe
4872	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: 36	2092	wmic.exe
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: 36	2092	wmic.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	4492	powershell.exe
Token: SeDebugPrivilege	1360	powershell.exe
Token: SeDebugPrivilege	3384	powershell.exe
Token: SeIncreaseQuotaPrivilege	1496	wmic.exe
Token: SeSecurityPrivilege	1496	wmic.exe
Token: SeTakeOwnershipPrivilege	1496	wmic.exe
Token: SeLoadDriverPrivilege	1496	wmic.exe
Token: SeSystemProfilePrivilege	1496	wmic.exe
Token: SeSystemtimePrivilege	1496	wmic.exe
Token: SeProfSingleProcessPrivilege	1496	wmic.exe
Token: SeIncBasePriorityPrivilege	1496	wmic.exe
Token: SeCreatePagefilePrivilege	1496	wmic.exe
Token: SeBackupPrivilege	1496	wmic.exe
Token: SeRestorePrivilege	1496	wmic.exe
Token: SeShutdownPrivilege	1496	wmic.exe
Token: SeDebugPrivilege	1496	wmic.exe
Token: SeSystemEnvironmentPrivilege	1496	wmic.exe
Token: SeRemoteShutdownPrivilege	1496	wmic.exe
Token: SeUndockPrivilege	1496	wmic.exe
Token: SeManageVolumePrivilege	1496	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2092	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	85
PID 2304 wrote to memory of 2092	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	85
PID 2304 wrote to memory of 4772	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	90
PID 2304 wrote to memory of 4772	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	90
PID 2304 wrote to memory of 2204	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	92
PID 2304 wrote to memory of 2204	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	92
PID 2304 wrote to memory of 4492	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	94
PID 2304 wrote to memory of 4492	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	94
PID 2304 wrote to memory of 1360	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	96
PID 2304 wrote to memory of 1360	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	96
PID 2304 wrote to memory of 3384	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	98
PID 2304 wrote to memory of 3384	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	98
PID 2304 wrote to memory of 1496	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	102
PID 2304 wrote to memory of 1496	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	102
PID 2304 wrote to memory of 4448	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	105
PID 2304 wrote to memory of 4448	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	105
PID 2304 wrote to memory of 888	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	107
PID 2304 wrote to memory of 888	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	107
PID 2304 wrote to memory of 4872	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	109
PID 2304 wrote to memory of 4872	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	109
PID 2304 wrote to memory of 4348	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	111
PID 2304 wrote to memory of 4348	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	111
PID 2304 wrote to memory of 2692	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	113
PID 2304 wrote to memory of 2692	2304	b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe	113
PID 2692 wrote to memory of 2652	2692	cmd.exe	115
PID 2692 wrote to memory of 2652	2692	cmd.exe	115

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4772	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe
"C:\Users\Admin\AppData\Local\Temp\b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2092
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe"
  2⤵
  - Views/modifies file attributes
  PID:4772
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- 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:4492
- 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:1360
- 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:3384
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4448
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:888
- 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:4872
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4348
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2652

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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
ac057a92f4b62d8880169af0693ef5b2

SHA1
66e7c7834c5dae5cec863ccd69403150d05841f4

SHA256
7cef55990e8e6cfe07e1965b303e79ac562cdc128ab82edf480d9873f72bb3ed

SHA512
d525f47da9e61fc87e55aca6b34e776be3ed081b719bbbb5256705a6afe5fdd4c16d5ee595af13994e2718f789f5fd32830331347d97b029c031c9dfe30c7f49

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_miqf1wwp.1ys.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2204-4-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download
memory/2204-14-0x000002101C950000-0x000002101C972000-memory.dmp

Filesize
136KB

Download
memory/2204-15-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download
memory/2204-18-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download
memory/2204-3-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download
memory/2304-34-0x000001E6F7690000-0x000001E6F76E0000-memory.dmp

Filesize
320KB

Download
memory/2304-33-0x000001E6F7610000-0x000001E6F7686000-memory.dmp

Filesize
472KB

Download
memory/2304-35-0x000001E6F7590000-0x000001E6F75AE000-memory.dmp

Filesize
120KB

Download
memory/2304-1-0x000001E6F4ED0000-0x000001E6F4F10000-memory.dmp

Filesize
256KB

Download
memory/2304-0-0x00007FFE22273000-0x00007FFE22275000-memory.dmp

Filesize
8KB

Download
memory/2304-71-0x000001E6F75C0000-0x000001E6F75CA000-memory.dmp

Filesize
40KB

Download
memory/2304-72-0x000001E6F75F0000-0x000001E6F7602000-memory.dmp

Filesize
72KB

Download
memory/2304-2-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download
memory/2304-90-0x00007FFE22270000-0x00007FFE22D31000-memory.dmp

Filesize
10.8MB

Download