umbral | a583bb77e2e129162e8bb14f1f840ee0491527f5d9fe0b2ccb663bb4c6980087

Analysis

max time kernel
1386s
max time network
1171s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17-03-2024 18:54

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General

Target

Drag To REH.exe
Size

234KB
MD5

a2a0c327823f83116e727fd7b3d664ea
SHA1

46116a07cc0e6d3bdd17bf63af02e36dd851ed30
SHA256

a583bb77e2e129162e8bb14f1f840ee0491527f5d9fe0b2ccb663bb4c6980087
SHA512

307300f9c5965bff22dab41f13dc2198b23b41bc7725143d6f23c4b95a801573f1158321884ae2f57c86cc6cc348fc48cd2889029163aef87a81abe75c228dec
SSDEEP

6144:jloZMCrIkd8g+EtXHkv/iD4mQHXXN2eRwENfKK/7Xb8e1mSi:BoZZL+EP8mQHXXN2eRwENfKK/3I

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2472-0-0x0000012D91820000-0x0000012D91860000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
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
43	discord.com
44	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
31	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
316	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2504	powershell.exe
2504	powershell.exe
1248	powershell.exe
1248	powershell.exe
2044	powershell.exe
2044	powershell.exe
4836	powershell.exe
4836	powershell.exe
384	powershell.exe
384	powershell.exe
384	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	Drag To REH.exe
Token: SeDebugPrivilege	2504	powershell.exe
Token: SeDebugPrivilege	1248	powershell.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeIncreaseQuotaPrivilege	3784	wmic.exe
Token: SeSecurityPrivilege	3784	wmic.exe
Token: SeTakeOwnershipPrivilege	3784	wmic.exe
Token: SeLoadDriverPrivilege	3784	wmic.exe
Token: SeSystemProfilePrivilege	3784	wmic.exe
Token: SeSystemtimePrivilege	3784	wmic.exe
Token: SeProfSingleProcessPrivilege	3784	wmic.exe
Token: SeIncBasePriorityPrivilege	3784	wmic.exe
Token: SeCreatePagefilePrivilege	3784	wmic.exe
Token: SeBackupPrivilege	3784	wmic.exe
Token: SeRestorePrivilege	3784	wmic.exe
Token: SeShutdownPrivilege	3784	wmic.exe
Token: SeDebugPrivilege	3784	wmic.exe
Token: SeSystemEnvironmentPrivilege	3784	wmic.exe
Token: SeRemoteShutdownPrivilege	3784	wmic.exe
Token: SeUndockPrivilege	3784	wmic.exe
Token: SeManageVolumePrivilege	3784	wmic.exe
Token: 33	3784	wmic.exe
Token: 34	3784	wmic.exe
Token: 35	3784	wmic.exe
Token: 36	3784	wmic.exe
Token: SeIncreaseQuotaPrivilege	3784	wmic.exe
Token: SeSecurityPrivilege	3784	wmic.exe
Token: SeTakeOwnershipPrivilege	3784	wmic.exe
Token: SeLoadDriverPrivilege	3784	wmic.exe
Token: SeSystemProfilePrivilege	3784	wmic.exe
Token: SeSystemtimePrivilege	3784	wmic.exe
Token: SeProfSingleProcessPrivilege	3784	wmic.exe
Token: SeIncBasePriorityPrivilege	3784	wmic.exe
Token: SeCreatePagefilePrivilege	3784	wmic.exe
Token: SeBackupPrivilege	3784	wmic.exe
Token: SeRestorePrivilege	3784	wmic.exe
Token: SeShutdownPrivilege	3784	wmic.exe
Token: SeDebugPrivilege	3784	wmic.exe
Token: SeSystemEnvironmentPrivilege	3784	wmic.exe
Token: SeRemoteShutdownPrivilege	3784	wmic.exe
Token: SeUndockPrivilege	3784	wmic.exe
Token: SeManageVolumePrivilege	3784	wmic.exe
Token: 33	3784	wmic.exe
Token: 34	3784	wmic.exe
Token: 35	3784	wmic.exe
Token: 36	3784	wmic.exe
Token: SeIncreaseQuotaPrivilege	2332	wmic.exe
Token: SeSecurityPrivilege	2332	wmic.exe
Token: SeTakeOwnershipPrivilege	2332	wmic.exe
Token: SeLoadDriverPrivilege	2332	wmic.exe
Token: SeSystemProfilePrivilege	2332	wmic.exe
Token: SeSystemtimePrivilege	2332	wmic.exe
Token: SeProfSingleProcessPrivilege	2332	wmic.exe
Token: SeIncBasePriorityPrivilege	2332	wmic.exe
Token: SeCreatePagefilePrivilege	2332	wmic.exe
Token: SeBackupPrivilege	2332	wmic.exe
Token: SeRestorePrivilege	2332	wmic.exe
Token: SeShutdownPrivilege	2332	wmic.exe
Token: SeDebugPrivilege	2332	wmic.exe
Token: SeSystemEnvironmentPrivilege	2332	wmic.exe
Token: SeRemoteShutdownPrivilege	2332	wmic.exe
Token: SeUndockPrivilege	2332	wmic.exe
Token: SeManageVolumePrivilege	2332	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2504	2472	Drag To REH.exe	92
PID 2472 wrote to memory of 2504	2472	Drag To REH.exe	92
PID 2472 wrote to memory of 1248	2472	Drag To REH.exe	94
PID 2472 wrote to memory of 1248	2472	Drag To REH.exe	94
PID 2472 wrote to memory of 2044	2472	Drag To REH.exe	96
PID 2472 wrote to memory of 2044	2472	Drag To REH.exe	96
PID 2472 wrote to memory of 4836	2472	Drag To REH.exe	98
PID 2472 wrote to memory of 4836	2472	Drag To REH.exe	98
PID 2472 wrote to memory of 3784	2472	Drag To REH.exe	103
PID 2472 wrote to memory of 3784	2472	Drag To REH.exe	103
PID 2472 wrote to memory of 2332	2472	Drag To REH.exe	106
PID 2472 wrote to memory of 2332	2472	Drag To REH.exe	106
PID 2472 wrote to memory of 3220	2472	Drag To REH.exe	108
PID 2472 wrote to memory of 3220	2472	Drag To REH.exe	108
PID 2472 wrote to memory of 384	2472	Drag To REH.exe	110
PID 2472 wrote to memory of 384	2472	Drag To REH.exe	110
PID 2472 wrote to memory of 316	2472	Drag To REH.exe	112
PID 2472 wrote to memory of 316	2472	Drag To REH.exe	112

C:\Users\Admin\AppData\Local\Temp\Drag To REH.exe
"C:\Users\Admin\AppData\Local\Temp\Drag To REH.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Drag To REH.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2504
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1248
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- 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:4836
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3784
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3220
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:384
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

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

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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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
985b3105d8889886d6fd953575c54e08

SHA1
0f9a041240a344d82bac0a180520e7982c15f3cd

SHA256
5178fdd457eb3eb25c8f72ed4c22c582a83de0d324db66d0446d660f226e944d

SHA512
0fd59bc4886b70aa3b7eeeaa23229b7fdc93410ca7f8452860e4a1bbda2559eaa5e4b05c3ec2d85f7d648daf3c16741f4c2c18f2dd3bae4cc4a4e57ae4f665b0

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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_f4ca3t0a.k23.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/384-96-0x00000155D2150000-0x00000155D2160000-memory.dmp

Filesize
64KB

Download
memory/384-99-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/384-97-0x00000155D2150000-0x00000155D2160000-memory.dmp

Filesize
64KB

Download
memory/384-95-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/1248-30-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/1248-31-0x000001FB6C410000-0x000001FB6C420000-memory.dmp

Filesize
64KB

Download
memory/1248-32-0x000001FB6C410000-0x000001FB6C420000-memory.dmp

Filesize
64KB

Download
memory/1248-34-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2044-40-0x000001CCEA8A0000-0x000001CCEA8B0000-memory.dmp

Filesize
64KB

Download
memory/2044-60-0x000001CCEA8A0000-0x000001CCEA8B0000-memory.dmp

Filesize
64KB

Download
memory/2044-39-0x000001CCEA8A0000-0x000001CCEA8B0000-memory.dmp

Filesize
64KB

Download
memory/2044-62-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2044-38-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2472-76-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2472-84-0x0000012DABD90000-0x0000012DABDA0000-memory.dmp

Filesize
64KB

Download
memory/2472-104-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2472-2-0x0000012DABD90000-0x0000012DABDA0000-memory.dmp

Filesize
64KB

Download
memory/2472-37-0x0000012DAC030000-0x0000012DAC04E000-memory.dmp

Filesize
120KB

Download
memory/2472-35-0x0000012DABF60000-0x0000012DABFD6000-memory.dmp

Filesize
472KB

Download
memory/2472-36-0x0000012DABFE0000-0x0000012DAC030000-memory.dmp

Filesize
320KB

Download
memory/2472-80-0x0000012DABEF0000-0x0000012DABEFA000-memory.dmp

Filesize
40KB

Download
memory/2472-0-0x0000012D91820000-0x0000012D91860000-memory.dmp

Filesize
256KB

Download
memory/2472-1-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2472-81-0x0000012DABF20000-0x0000012DABF32000-memory.dmp

Filesize
72KB

Download
memory/2504-11-0x000001E455E60000-0x000001E455E70000-memory.dmp

Filesize
64KB

Download
memory/2504-10-0x000001E455E60000-0x000001E455E70000-memory.dmp

Filesize
64KB

Download
memory/2504-3-0x000001E455E10000-0x000001E455E32000-memory.dmp

Filesize
136KB

Download
memory/2504-18-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/2504-4-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/4836-78-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/4836-74-0x0000017F4AA00000-0x0000017F4AA10000-memory.dmp

Filesize
64KB

Download
memory/4836-64-0x00007FFE03880000-0x00007FFE04341000-memory.dmp

Filesize
10.8MB

Download
memory/4836-69-0x0000017F4AA00000-0x0000017F4AA10000-memory.dmp

Filesize
64KB

Download