umbral | 70575d18c218295c13e10e6d50b48af76d00f4dd46ed0d5010aaf212b0ea61af

Analysis

max time kernel
103s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 12:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7bc86d2e18813d4d06d2d39894762b90N.exe
Size

229KB
MD5

7bc86d2e18813d4d06d2d39894762b90
SHA1

6203740dc4dde0290d4827f479f6d08a91a7c699
SHA256

70575d18c218295c13e10e6d50b48af76d00f4dd46ed0d5010aaf212b0ea61af
SHA512

1918500c3bed431277318d03db3a4d39c0f3a81dcc782aa60d4108e6836593d20aa22d79884e2bb54fd9bc7a63a0dcad8536156437e69f0c020b5e1ad552d685
SSDEEP

6144:9loZMhrIkd8g+EtXHkv/iD4jol1t74sz9Krd4UBwwb8e1m1i:foZiL+EP8jol1t74sz9Krd4UBVP

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3512-1-0x000001A5CE8E0000-0x000001A5CE920000-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
624	powershell.exe
3160	powershell.exe
5088	powershell.exe
1724	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	7bc86d2e18813d4d06d2d39894762b90N.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
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
17	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3976	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
624	powershell.exe
624	powershell.exe
3160	powershell.exe
3160	powershell.exe
5088	powershell.exe
5088	powershell.exe
3548	powershell.exe
3548	powershell.exe
1724	powershell.exe
1724	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3512	7bc86d2e18813d4d06d2d39894762b90N.exe
Token: SeDebugPrivilege	624	powershell.exe
Token: SeDebugPrivilege	3160	powershell.exe
Token: SeDebugPrivilege	5088	powershell.exe
Token: SeDebugPrivilege	3548	powershell.exe
Token: SeIncreaseQuotaPrivilege	3752	wmic.exe
Token: SeSecurityPrivilege	3752	wmic.exe
Token: SeTakeOwnershipPrivilege	3752	wmic.exe
Token: SeLoadDriverPrivilege	3752	wmic.exe
Token: SeSystemProfilePrivilege	3752	wmic.exe
Token: SeSystemtimePrivilege	3752	wmic.exe
Token: SeProfSingleProcessPrivilege	3752	wmic.exe
Token: SeIncBasePriorityPrivilege	3752	wmic.exe
Token: SeCreatePagefilePrivilege	3752	wmic.exe
Token: SeBackupPrivilege	3752	wmic.exe
Token: SeRestorePrivilege	3752	wmic.exe
Token: SeShutdownPrivilege	3752	wmic.exe
Token: SeDebugPrivilege	3752	wmic.exe
Token: SeSystemEnvironmentPrivilege	3752	wmic.exe
Token: SeRemoteShutdownPrivilege	3752	wmic.exe
Token: SeUndockPrivilege	3752	wmic.exe
Token: SeManageVolumePrivilege	3752	wmic.exe
Token: 33	3752	wmic.exe
Token: 34	3752	wmic.exe
Token: 35	3752	wmic.exe
Token: 36	3752	wmic.exe
Token: SeIncreaseQuotaPrivilege	3752	wmic.exe
Token: SeSecurityPrivilege	3752	wmic.exe
Token: SeTakeOwnershipPrivilege	3752	wmic.exe
Token: SeLoadDriverPrivilege	3752	wmic.exe
Token: SeSystemProfilePrivilege	3752	wmic.exe
Token: SeSystemtimePrivilege	3752	wmic.exe
Token: SeProfSingleProcessPrivilege	3752	wmic.exe
Token: SeIncBasePriorityPrivilege	3752	wmic.exe
Token: SeCreatePagefilePrivilege	3752	wmic.exe
Token: SeBackupPrivilege	3752	wmic.exe
Token: SeRestorePrivilege	3752	wmic.exe
Token: SeShutdownPrivilege	3752	wmic.exe
Token: SeDebugPrivilege	3752	wmic.exe
Token: SeSystemEnvironmentPrivilege	3752	wmic.exe
Token: SeRemoteShutdownPrivilege	3752	wmic.exe
Token: SeUndockPrivilege	3752	wmic.exe
Token: SeManageVolumePrivilege	3752	wmic.exe
Token: 33	3752	wmic.exe
Token: 34	3752	wmic.exe
Token: 35	3752	wmic.exe
Token: 36	3752	wmic.exe
Token: SeIncreaseQuotaPrivilege	2436	wmic.exe
Token: SeSecurityPrivilege	2436	wmic.exe
Token: SeTakeOwnershipPrivilege	2436	wmic.exe
Token: SeLoadDriverPrivilege	2436	wmic.exe
Token: SeSystemProfilePrivilege	2436	wmic.exe
Token: SeSystemtimePrivilege	2436	wmic.exe
Token: SeProfSingleProcessPrivilege	2436	wmic.exe
Token: SeIncBasePriorityPrivilege	2436	wmic.exe
Token: SeCreatePagefilePrivilege	2436	wmic.exe
Token: SeBackupPrivilege	2436	wmic.exe
Token: SeRestorePrivilege	2436	wmic.exe
Token: SeShutdownPrivilege	2436	wmic.exe
Token: SeDebugPrivilege	2436	wmic.exe
Token: SeSystemEnvironmentPrivilege	2436	wmic.exe
Token: SeRemoteShutdownPrivilege	2436	wmic.exe
Token: SeUndockPrivilege	2436	wmic.exe
Token: SeManageVolumePrivilege	2436	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 624	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	84
PID 3512 wrote to memory of 624	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	84
PID 3512 wrote to memory of 3160	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	89
PID 3512 wrote to memory of 3160	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	89
PID 3512 wrote to memory of 5088	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	91
PID 3512 wrote to memory of 5088	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	91
PID 3512 wrote to memory of 3548	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	93
PID 3512 wrote to memory of 3548	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	93
PID 3512 wrote to memory of 3752	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	95
PID 3512 wrote to memory of 3752	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	95
PID 3512 wrote to memory of 2436	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	98
PID 3512 wrote to memory of 2436	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	98
PID 3512 wrote to memory of 1892	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	100
PID 3512 wrote to memory of 1892	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	100
PID 3512 wrote to memory of 1724	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	102
PID 3512 wrote to memory of 1724	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	102
PID 3512 wrote to memory of 3976	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	106
PID 3512 wrote to memory of 3976	3512	7bc86d2e18813d4d06d2d39894762b90N.exe	106

C:\Users\Admin\AppData\Local\Temp\7bc86d2e18813d4d06d2d39894762b90N.exe
"C:\Users\Admin\AppData\Local\Temp\7bc86d2e18813d4d06d2d39894762b90N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\7bc86d2e18813d4d06d2d39894762b90N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:624
- 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:3160
- 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:5088
- 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:3548
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3752
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1892
- 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:1724
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3976

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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
36d03a272b43b1c16e5bce541906f649

SHA1
66f0178c3182a09386738d60501411a14b4a3864

SHA256
3fe1814466c786b9b14e3d1b9f9348434db490bc462b9e071f7bcaea5ef9e270

SHA512
d6c34935c1c22bda2ffd3550e54ca77bca92ab46829d3acc58c263fec94f8b6fa578105a80121c78e6d38ee51ec8f1bb8ae74ba7844a207499145308ec982a3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_45e5rpxd.mdp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/624-13-0x00000185CEA00000-0x00000185CEA22000-memory.dmp

Filesize
136KB

Download
memory/624-12-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download
memory/624-14-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download
memory/624-15-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download
memory/624-18-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download
memory/3512-33-0x000001A5E8D60000-0x000001A5E8DB0000-memory.dmp

Filesize
320KB

Download
memory/3512-32-0x000001A5E9040000-0x000001A5E90B6000-memory.dmp

Filesize
472KB

Download
memory/3512-34-0x000001A5D0550000-0x000001A5D056E000-memory.dmp

Filesize
120KB

Download
memory/3512-1-0x000001A5CE8E0000-0x000001A5CE920000-memory.dmp

Filesize
256KB

Download
memory/3512-0-0x00007FFA93763000-0x00007FFA93765000-memory.dmp

Filesize
8KB

Download
memory/3512-70-0x000001A5E8DC0000-0x000001A5E8DCA000-memory.dmp

Filesize
40KB

Download
memory/3512-71-0x000001A5E90C0000-0x000001A5E90D2000-memory.dmp

Filesize
72KB

Download
memory/3512-2-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download
memory/3512-89-0x000001A5E9260000-0x000001A5E9409000-memory.dmp

Filesize
1.7MB

Download
memory/3512-90-0x00007FFA93760000-0x00007FFA94221000-memory.dmp

Filesize
10.8MB

Download