umbral | ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d

Analysis

max time kernel
146s
max time network
136s
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 03:20

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General

Target

ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe
Size

229KB
MD5

4a89926d7875b20715aee8b91055288a
SHA1

bc9dd5dd8c03ba61a00284597816da69b26d3124
SHA256

ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d
SHA512

a4fdd5dfd1aeef9335dc1b9cb70c0e38cd548ce0ee58c003ac2d1b6cc7193e4585a7c1283d4030ffb13909089c625e9f99f371d677228fad5f8319f2d8d71bec
SSDEEP

6144:tloZM+rIkd8g+EtXHkv/iD4Zb++zZqSteY5rWWDPtbb8e1mQLi:voZ1L+EP8Zb++zZqSteY5rWWD1xG

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3112-1-0x0000021D06C30000-0x0000021D06C70000-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
3624	powershell.exe
4324	powershell.exe
536	powershell.exe
5096	powershell.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
25	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
18	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
3300	cmd.exe
1568	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2484	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1568	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3624	powershell.exe
3624	powershell.exe
4324	powershell.exe
4324	powershell.exe
536	powershell.exe
536	powershell.exe
4936	powershell.exe
4936	powershell.exe
5096	powershell.exe
5096	powershell.exe
5096	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe
Token: SeDebugPrivilege	3624	powershell.exe
Token: SeDebugPrivilege	4324	powershell.exe
Token: SeDebugPrivilege	536	powershell.exe
Token: SeDebugPrivilege	4936	powershell.exe
Token: SeIncreaseQuotaPrivilege	4448	wmic.exe
Token: SeSecurityPrivilege	4448	wmic.exe
Token: SeTakeOwnershipPrivilege	4448	wmic.exe
Token: SeLoadDriverPrivilege	4448	wmic.exe
Token: SeSystemProfilePrivilege	4448	wmic.exe
Token: SeSystemtimePrivilege	4448	wmic.exe
Token: SeProfSingleProcessPrivilege	4448	wmic.exe
Token: SeIncBasePriorityPrivilege	4448	wmic.exe
Token: SeCreatePagefilePrivilege	4448	wmic.exe
Token: SeBackupPrivilege	4448	wmic.exe
Token: SeRestorePrivilege	4448	wmic.exe
Token: SeShutdownPrivilege	4448	wmic.exe
Token: SeDebugPrivilege	4448	wmic.exe
Token: SeSystemEnvironmentPrivilege	4448	wmic.exe
Token: SeRemoteShutdownPrivilege	4448	wmic.exe
Token: SeUndockPrivilege	4448	wmic.exe
Token: SeManageVolumePrivilege	4448	wmic.exe
Token: 33	4448	wmic.exe
Token: 34	4448	wmic.exe
Token: 35	4448	wmic.exe
Token: 36	4448	wmic.exe
Token: SeIncreaseQuotaPrivilege	4448	wmic.exe
Token: SeSecurityPrivilege	4448	wmic.exe
Token: SeTakeOwnershipPrivilege	4448	wmic.exe
Token: SeLoadDriverPrivilege	4448	wmic.exe
Token: SeSystemProfilePrivilege	4448	wmic.exe
Token: SeSystemtimePrivilege	4448	wmic.exe
Token: SeProfSingleProcessPrivilege	4448	wmic.exe
Token: SeIncBasePriorityPrivilege	4448	wmic.exe
Token: SeCreatePagefilePrivilege	4448	wmic.exe
Token: SeBackupPrivilege	4448	wmic.exe
Token: SeRestorePrivilege	4448	wmic.exe
Token: SeShutdownPrivilege	4448	wmic.exe
Token: SeDebugPrivilege	4448	wmic.exe
Token: SeSystemEnvironmentPrivilege	4448	wmic.exe
Token: SeRemoteShutdownPrivilege	4448	wmic.exe
Token: SeUndockPrivilege	4448	wmic.exe
Token: SeManageVolumePrivilege	4448	wmic.exe
Token: 33	4448	wmic.exe
Token: 34	4448	wmic.exe
Token: 35	4448	wmic.exe
Token: 36	4448	wmic.exe
Token: SeIncreaseQuotaPrivilege	4120	wmic.exe
Token: SeSecurityPrivilege	4120	wmic.exe
Token: SeTakeOwnershipPrivilege	4120	wmic.exe
Token: SeLoadDriverPrivilege	4120	wmic.exe
Token: SeSystemProfilePrivilege	4120	wmic.exe
Token: SeSystemtimePrivilege	4120	wmic.exe
Token: SeProfSingleProcessPrivilege	4120	wmic.exe
Token: SeIncBasePriorityPrivilege	4120	wmic.exe
Token: SeCreatePagefilePrivilege	4120	wmic.exe
Token: SeBackupPrivilege	4120	wmic.exe
Token: SeRestorePrivilege	4120	wmic.exe
Token: SeShutdownPrivilege	4120	wmic.exe
Token: SeDebugPrivilege	4120	wmic.exe
Token: SeSystemEnvironmentPrivilege	4120	wmic.exe
Token: SeRemoteShutdownPrivilege	4120	wmic.exe
Token: SeUndockPrivilege	4120	wmic.exe
Token: SeManageVolumePrivilege	4120	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 3900	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	91
PID 3112 wrote to memory of 3900	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	91
PID 3112 wrote to memory of 3624	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	93
PID 3112 wrote to memory of 3624	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	93
PID 3112 wrote to memory of 4324	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	95
PID 3112 wrote to memory of 4324	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	95
PID 3112 wrote to memory of 536	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	97
PID 3112 wrote to memory of 536	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	97
PID 3112 wrote to memory of 4936	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	99
PID 3112 wrote to memory of 4936	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	99
PID 3112 wrote to memory of 4448	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	104
PID 3112 wrote to memory of 4448	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	104
PID 3112 wrote to memory of 4120	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	109
PID 3112 wrote to memory of 4120	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	109
PID 3112 wrote to memory of 3428	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	111
PID 3112 wrote to memory of 3428	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	111
PID 3112 wrote to memory of 5096	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	113
PID 3112 wrote to memory of 5096	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	113
PID 3112 wrote to memory of 2484	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	116
PID 3112 wrote to memory of 2484	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	116
PID 3112 wrote to memory of 3300	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	118
PID 3112 wrote to memory of 3300	3112	ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe	118
PID 3300 wrote to memory of 1568	3300	cmd.exe	120
PID 3300 wrote to memory of 1568	3300	cmd.exe	120

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3900	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe
"C:\Users\Admin\AppData\Local\Temp\ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe"
  2⤵
  - Views/modifies file attributes
  PID:3900
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3624
- 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:4324
- 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:536
- 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:4936
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4448
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4120
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3428
- 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:5096
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2484
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\ccfdc56d44e882de28409431e7c52addcd5c569e7b96bf02cfbe25415954be3d.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3300
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1568

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4376,i,11708048364682646792,608099842549576907,262144 --variations-seed-version --mojo-platform-channel-handle=4088 /prefetch:8
1⤵
PID:3540

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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
948B

MD5
5824a6037c081fda5d46de274b6e2799

SHA1
526367a09300cbde430e8fb44e41cbe7a0937aac

SHA256
4d610d9cd32a20279c7133a726ff61820d6930e5aa18253ee1422f3a6f54953f

SHA512
a109b150f730cda78d5bee106bd232f9dca7500dfb7899c6919de2bd542e345ca271aa11809a24ea0a27dca158067ab3a2d5688ac0a2325185143245f1665582

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
f676122005d4508c63dda4484d2a8bff

SHA1
669063d89462f73283c52336d46321d2186d40c3

SHA256
f24f6b18da3867013a360bfec28198377489bea64a69daae5c7967d1706d3714

SHA512
1d6cac95d2883c75f6ce979b15bc9466e15951a70f01c2fb6bfc8980e7a5dd0a094ca9aa7d2dcb20d6c222136e06ca2ffee1ff29e0e571aa770b885e40ea7255

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0kvrkejr.34u.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3112-67-0x0000021D21430000-0x0000021D2143A000-memory.dmp

Filesize
40KB

Download
memory/3112-34-0x0000021D21400000-0x0000021D2141E000-memory.dmp

Filesize
120KB

Download
memory/3112-87-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/3112-86-0x0000021D210B0000-0x0000021D211B2000-memory.dmp

Filesize
1.0MB

Download
memory/3112-2-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/3112-32-0x0000021D21480000-0x0000021D214F6000-memory.dmp

Filesize
472KB

Download
memory/3112-33-0x0000021D21500000-0x0000021D21550000-memory.dmp

Filesize
320KB

Download
memory/3112-68-0x0000021D21460000-0x0000021D21472000-memory.dmp

Filesize
72KB

Download
memory/3112-1-0x0000021D06C30000-0x0000021D06C70000-memory.dmp

Filesize
256KB

Download
memory/3112-0-0x00007FF865963000-0x00007FF865965000-memory.dmp

Filesize
8KB

Download
memory/3624-13-0x000002625E840000-0x000002625E862000-memory.dmp

Filesize
136KB

Download
memory/3624-15-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/3624-14-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/3624-3-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/3624-18-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download