umbral | f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd

Analysis

max time kernel
22s
max time network
24s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21-08-2024 02:35

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General

Target

f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
Size

227KB
MD5

57725f9d6fe867414481c9174b761df1
SHA1

498f57a097747aa80a83a2927a74d96c007028c6
SHA256

f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd
SHA512

28de892b39cfb8e534c8bec5c2a8f277adb006499930fc6cf00251b5f157033d856dcb41dbc80375a61dc7ffe9eb109e1e00cbc42972b2202f8348daac7b6586
SSDEEP

6144:+loZM9rIkd8g+EtXHkv/iD4UcHZLxCqVUQhTuOLdG2Hb8e1mB1i:ooZOL+EP8UcHZLxCqVUQhTuOLd9Ec

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/560-1-0x0000000000AA0000-0x0000000000AE0000-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
2876	powershell.exe
832	powershell.exe
1308	powershell.exe
1180	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe

Deletes itself 1 IoCs

pid	Process
2116	cmd.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
8	discord.com
9	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
6	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
2116	cmd.exe
2224	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2808	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2224	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2876	powershell.exe
832	powershell.exe
1308	powershell.exe
2376	powershell.exe
1180	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	832	powershell.exe
Token: SeDebugPrivilege	1308	powershell.exe
Token: SeDebugPrivilege	2376	powershell.exe
Token: SeIncreaseQuotaPrivilege	2948	wmic.exe
Token: SeSecurityPrivilege	2948	wmic.exe
Token: SeTakeOwnershipPrivilege	2948	wmic.exe
Token: SeLoadDriverPrivilege	2948	wmic.exe
Token: SeSystemProfilePrivilege	2948	wmic.exe
Token: SeSystemtimePrivilege	2948	wmic.exe
Token: SeProfSingleProcessPrivilege	2948	wmic.exe
Token: SeIncBasePriorityPrivilege	2948	wmic.exe
Token: SeCreatePagefilePrivilege	2948	wmic.exe
Token: SeBackupPrivilege	2948	wmic.exe
Token: SeRestorePrivilege	2948	wmic.exe
Token: SeShutdownPrivilege	2948	wmic.exe
Token: SeDebugPrivilege	2948	wmic.exe
Token: SeSystemEnvironmentPrivilege	2948	wmic.exe
Token: SeRemoteShutdownPrivilege	2948	wmic.exe
Token: SeUndockPrivilege	2948	wmic.exe
Token: SeManageVolumePrivilege	2948	wmic.exe
Token: 33	2948	wmic.exe
Token: 34	2948	wmic.exe
Token: 35	2948	wmic.exe
Token: SeIncreaseQuotaPrivilege	2948	wmic.exe
Token: SeSecurityPrivilege	2948	wmic.exe
Token: SeTakeOwnershipPrivilege	2948	wmic.exe
Token: SeLoadDriverPrivilege	2948	wmic.exe
Token: SeSystemProfilePrivilege	2948	wmic.exe
Token: SeSystemtimePrivilege	2948	wmic.exe
Token: SeProfSingleProcessPrivilege	2948	wmic.exe
Token: SeIncBasePriorityPrivilege	2948	wmic.exe
Token: SeCreatePagefilePrivilege	2948	wmic.exe
Token: SeBackupPrivilege	2948	wmic.exe
Token: SeRestorePrivilege	2948	wmic.exe
Token: SeShutdownPrivilege	2948	wmic.exe
Token: SeDebugPrivilege	2948	wmic.exe
Token: SeSystemEnvironmentPrivilege	2948	wmic.exe
Token: SeRemoteShutdownPrivilege	2948	wmic.exe
Token: SeUndockPrivilege	2948	wmic.exe
Token: SeManageVolumePrivilege	2948	wmic.exe
Token: 33	2948	wmic.exe
Token: 34	2948	wmic.exe
Token: 35	2948	wmic.exe
Token: SeIncreaseQuotaPrivilege	3024	wmic.exe
Token: SeSecurityPrivilege	3024	wmic.exe
Token: SeTakeOwnershipPrivilege	3024	wmic.exe
Token: SeLoadDriverPrivilege	3024	wmic.exe
Token: SeSystemProfilePrivilege	3024	wmic.exe
Token: SeSystemtimePrivilege	3024	wmic.exe
Token: SeProfSingleProcessPrivilege	3024	wmic.exe
Token: SeIncBasePriorityPrivilege	3024	wmic.exe
Token: SeCreatePagefilePrivilege	3024	wmic.exe
Token: SeBackupPrivilege	3024	wmic.exe
Token: SeRestorePrivilege	3024	wmic.exe
Token: SeShutdownPrivilege	3024	wmic.exe
Token: SeDebugPrivilege	3024	wmic.exe
Token: SeSystemEnvironmentPrivilege	3024	wmic.exe
Token: SeRemoteShutdownPrivilege	3024	wmic.exe
Token: SeUndockPrivilege	3024	wmic.exe
Token: SeManageVolumePrivilege	3024	wmic.exe
Token: 33	3024	wmic.exe
Token: 34	3024	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 560 wrote to memory of 2840	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	29
PID 560 wrote to memory of 2840	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	29
PID 560 wrote to memory of 2840	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	29
PID 560 wrote to memory of 2876	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	31
PID 560 wrote to memory of 2876	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	31
PID 560 wrote to memory of 2876	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	31
PID 560 wrote to memory of 832	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	33
PID 560 wrote to memory of 832	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	33
PID 560 wrote to memory of 832	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	33
PID 560 wrote to memory of 1308	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	35
PID 560 wrote to memory of 1308	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	35
PID 560 wrote to memory of 1308	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	35
PID 560 wrote to memory of 2376	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	37
PID 560 wrote to memory of 2376	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	37
PID 560 wrote to memory of 2376	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	37
PID 560 wrote to memory of 2948	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	39
PID 560 wrote to memory of 2948	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	39
PID 560 wrote to memory of 2948	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	39
PID 560 wrote to memory of 3024	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	42
PID 560 wrote to memory of 3024	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	42
PID 560 wrote to memory of 3024	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	42
PID 560 wrote to memory of 1396	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	44
PID 560 wrote to memory of 1396	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	44
PID 560 wrote to memory of 1396	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	44
PID 560 wrote to memory of 1180	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	46
PID 560 wrote to memory of 1180	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	46
PID 560 wrote to memory of 1180	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	46
PID 560 wrote to memory of 2808	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	48
PID 560 wrote to memory of 2808	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	48
PID 560 wrote to memory of 2808	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	48
PID 560 wrote to memory of 2116	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	50
PID 560 wrote to memory of 2116	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	50
PID 560 wrote to memory of 2116	560	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	50
PID 2116 wrote to memory of 2224	2116	cmd.exe	52
PID 2116 wrote to memory of 2224	2116	cmd.exe	52
PID 2116 wrote to memory of 2224	2116	cmd.exe	52

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
"C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe"
  2⤵
  - Views/modifies file attributes
  PID:2840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- 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:832
- 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:1308
- 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:2376
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3024
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1396
- 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:1180
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2808
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2224

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
722cc800ab7c75ba10a293d61aa4deb3

SHA1
75b22d226e3e779e43323567b0c72f096a94a3ff

SHA256
5c84e2705a958b55fc30b83f67dfba6f4ad06c032fa4320a4df59e7ffa122b1e

SHA512
54f7ef95dbc5d90c2945fbd5b3a025e571db4fe9452c896a3c8f495d3012c50792763914c1a6a07ec3ca1813052168878317f6103edfa4f62863b819e13ddd2a

Download Submit
memory/560-1-0x0000000000AA0000-0x0000000000AE0000-memory.dmp

Filesize
256KB

Download
memory/560-2-0x000007FEF5720000-0x000007FEF610C000-memory.dmp

Filesize
9.9MB

Download
memory/560-54-0x000007FEF5720000-0x000007FEF610C000-memory.dmp

Filesize
9.9MB

Download
memory/560-0-0x000007FEF5723000-0x000007FEF5724000-memory.dmp

Filesize
4KB

Download
memory/560-26-0x000007FEF5720000-0x000007FEF610C000-memory.dmp

Filesize
9.9MB

Download
memory/560-25-0x000007FEF5723000-0x000007FEF5724000-memory.dmp

Filesize
4KB

Download
memory/832-22-0x0000000002040000-0x0000000002048000-memory.dmp

Filesize
32KB

Download
memory/832-21-0x000000001B1E0000-0x000000001B4C2000-memory.dmp

Filesize
2.9MB

Download
memory/2876-8-0x000000001B2C0000-0x000000001B5A2000-memory.dmp

Filesize
2.9MB

Download
memory/2876-14-0x00000000025CB000-0x0000000002632000-memory.dmp

Filesize
412KB

Download
memory/2876-15-0x000007FEED300000-0x000007FEEDC9D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-13-0x000007FEED300000-0x000007FEEDC9D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-12-0x000007FEED300000-0x000007FEEDC9D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-11-0x000007FEED300000-0x000007FEEDC9D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-10-0x000007FEED300000-0x000007FEEDC9D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-9-0x0000000002590000-0x0000000002598000-memory.dmp

Filesize
32KB

Download
memory/2876-7-0x000007FEED5BE000-0x000007FEED5BF000-memory.dmp

Filesize
4KB

Download