umbral | 419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5

Analysis

max time kernel
147s
max time network
196s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
05-02-2024 10:57

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General

Target

2222.exe
Size

227KB
MD5

2d609a4bb5b23b1811bf7f18c8d86504
SHA1

b3c21506848edd61dcc21e71ecbba740a9929f5b
SHA256

419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5
SHA512

a73c96bba173c30e64a6d49a9da26b49fca44828f7d3aaa14d4070d1b55b0d0a891e3ba42565c6e94d4ebf085cbb6742b7f5c6956d1019d8fd4cdf07d13953e0
SSDEEP

6144:+loZMorIkd8g+EtXHkv/iD44Z44KInDAvZMK7bCpHb8e1mp8i:ooZHL+EP84Z44KInDAvZMK7bC9qV

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral4/memory/2272-0-0x0000018F19BB0000-0x0000018F19BF0000-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
1	discord.com
5	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
1	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
956	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1612	powershell.exe
1612	powershell.exe
2960	powershell.exe
2960	powershell.exe
4596	powershell.exe
4596	powershell.exe
2460	powershell.exe
2460	powershell.exe
3136	powershell.exe
3136	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	2222.exe
Token: SeDebugPrivilege	1612	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	4596	powershell.exe
Token: SeDebugPrivilege	2460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4132	wmic.exe
Token: SeSecurityPrivilege	4132	wmic.exe
Token: SeTakeOwnershipPrivilege	4132	wmic.exe
Token: SeLoadDriverPrivilege	4132	wmic.exe
Token: SeSystemProfilePrivilege	4132	wmic.exe
Token: SeSystemtimePrivilege	4132	wmic.exe
Token: SeProfSingleProcessPrivilege	4132	wmic.exe
Token: SeIncBasePriorityPrivilege	4132	wmic.exe
Token: SeCreatePagefilePrivilege	4132	wmic.exe
Token: SeBackupPrivilege	4132	wmic.exe
Token: SeRestorePrivilege	4132	wmic.exe
Token: SeShutdownPrivilege	4132	wmic.exe
Token: SeDebugPrivilege	4132	wmic.exe
Token: SeSystemEnvironmentPrivilege	4132	wmic.exe
Token: SeRemoteShutdownPrivilege	4132	wmic.exe
Token: SeUndockPrivilege	4132	wmic.exe
Token: SeManageVolumePrivilege	4132	wmic.exe
Token: 33	4132	wmic.exe
Token: 34	4132	wmic.exe
Token: 35	4132	wmic.exe
Token: 36	4132	wmic.exe
Token: SeIncreaseQuotaPrivilege	4132	wmic.exe
Token: SeSecurityPrivilege	4132	wmic.exe
Token: SeTakeOwnershipPrivilege	4132	wmic.exe
Token: SeLoadDriverPrivilege	4132	wmic.exe
Token: SeSystemProfilePrivilege	4132	wmic.exe
Token: SeSystemtimePrivilege	4132	wmic.exe
Token: SeProfSingleProcessPrivilege	4132	wmic.exe
Token: SeIncBasePriorityPrivilege	4132	wmic.exe
Token: SeCreatePagefilePrivilege	4132	wmic.exe
Token: SeBackupPrivilege	4132	wmic.exe
Token: SeRestorePrivilege	4132	wmic.exe
Token: SeShutdownPrivilege	4132	wmic.exe
Token: SeDebugPrivilege	4132	wmic.exe
Token: SeSystemEnvironmentPrivilege	4132	wmic.exe
Token: SeRemoteShutdownPrivilege	4132	wmic.exe
Token: SeUndockPrivilege	4132	wmic.exe
Token: SeManageVolumePrivilege	4132	wmic.exe
Token: 33	4132	wmic.exe
Token: 34	4132	wmic.exe
Token: 35	4132	wmic.exe
Token: 36	4132	wmic.exe
Token: SeIncreaseQuotaPrivilege	1128	wmic.exe
Token: SeSecurityPrivilege	1128	wmic.exe
Token: SeTakeOwnershipPrivilege	1128	wmic.exe
Token: SeLoadDriverPrivilege	1128	wmic.exe
Token: SeSystemProfilePrivilege	1128	wmic.exe
Token: SeSystemtimePrivilege	1128	wmic.exe
Token: SeProfSingleProcessPrivilege	1128	wmic.exe
Token: SeIncBasePriorityPrivilege	1128	wmic.exe
Token: SeCreatePagefilePrivilege	1128	wmic.exe
Token: SeBackupPrivilege	1128	wmic.exe
Token: SeRestorePrivilege	1128	wmic.exe
Token: SeShutdownPrivilege	1128	wmic.exe
Token: SeDebugPrivilege	1128	wmic.exe
Token: SeSystemEnvironmentPrivilege	1128	wmic.exe
Token: SeRemoteShutdownPrivilege	1128	wmic.exe
Token: SeUndockPrivilege	1128	wmic.exe
Token: SeManageVolumePrivilege	1128	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1612	2272	2222.exe	76
PID 2272 wrote to memory of 1612	2272	2222.exe	76
PID 2272 wrote to memory of 2960	2272	2222.exe	79
PID 2272 wrote to memory of 2960	2272	2222.exe	79
PID 2272 wrote to memory of 4596	2272	2222.exe	81
PID 2272 wrote to memory of 4596	2272	2222.exe	81
PID 2272 wrote to memory of 2460	2272	2222.exe	82
PID 2272 wrote to memory of 2460	2272	2222.exe	82
PID 2272 wrote to memory of 4132	2272	2222.exe	88
PID 2272 wrote to memory of 4132	2272	2222.exe	88
PID 2272 wrote to memory of 1128	2272	2222.exe	87
PID 2272 wrote to memory of 1128	2272	2222.exe	87
PID 2272 wrote to memory of 4060	2272	2222.exe	94
PID 2272 wrote to memory of 4060	2272	2222.exe	94
PID 2272 wrote to memory of 3136	2272	2222.exe	91
PID 2272 wrote to memory of 3136	2272	2222.exe	91
PID 2272 wrote to memory of 956	2272	2222.exe	93
PID 2272 wrote to memory of 956	2272	2222.exe	93

C:\Users\Admin\AppData\Local\Temp\2222.exe
"C:\Users\Admin\AppData\Local\Temp\2222.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2222.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1612
- 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:2960
- 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:4596
- 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:2460
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1128
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4132
- 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:3136
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4060

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
948B

MD5
45741c307af2576c6437c5fdb24ef9ce

SHA1
a6ba7a7705db14ac29a18a98dd7deb4cc759c3bf

SHA256
7887859f7179e194ff9b78f8d8fa3830790110a01597f21ff48c84cd935e49d2

SHA512
39fdc5931563cbf826e8b643b5f0dcdf45bb6f95a8eeb460499257ca41b3dbee4c692eaacc3fd33bddf4b6ff0c828981ed7e9cd080007bbb9f0b28e7d0d66941

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
00b5dac0faabd946e46411c68c4e4b54

SHA1
ebffe4f7312c6a3ea1a5bfb8e36e3716b73a71de

SHA256
ba0bccd5b683d96eda6d4000424147e0dddaa1e6c87dd65566721f4552397133

SHA512
25a291425f8ac169440d5a6250b2eae67261d599bd35aa3e02c742deed5aedea7d4e88910947116068759e3b8cb5fd82c29b6360d86b663fc536b09bd69ac9c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mhm0szho.vsg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1612-9-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/1612-8-0x000001AF3FD00000-0x000001AF3FD22000-memory.dmp

Filesize
136KB

Download
memory/1612-10-0x000001AF3FBF0000-0x000001AF3FC00000-memory.dmp

Filesize
64KB

Download
memory/1612-14-0x000001AF3FBF0000-0x000001AF3FC00000-memory.dmp

Filesize
64KB

Download
memory/1612-17-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2272-104-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2272-37-0x0000018F34450000-0x0000018F344A0000-memory.dmp

Filesize
320KB

Download
memory/2272-0-0x0000018F19BB0000-0x0000018F19BF0000-memory.dmp

Filesize
256KB

Download
memory/2272-82-0x0000018F1B8D0000-0x0000018F1B8DA000-memory.dmp

Filesize
40KB

Download
memory/2272-83-0x0000018F34350000-0x0000018F34362000-memory.dmp

Filesize
72KB

Download
memory/2272-63-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2272-36-0x0000018F343D0000-0x0000018F34446000-memory.dmp

Filesize
472KB

Download
memory/2272-1-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2272-38-0x0000018F34370000-0x0000018F3438E000-memory.dmp

Filesize
120KB

Download
memory/2272-2-0x0000018F1B8B0000-0x0000018F1B8C0000-memory.dmp

Filesize
64KB

Download
memory/2272-78-0x0000018F1B8B0000-0x0000018F1B8C0000-memory.dmp

Filesize
64KB

Download
memory/2460-77-0x0000019C14F80000-0x0000019C14F90000-memory.dmp

Filesize
64KB

Download
memory/2460-76-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2460-80-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2960-28-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2960-34-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/2960-30-0x0000025529D30000-0x0000025529D40000-memory.dmp

Filesize
64KB

Download
memory/2960-31-0x0000025529D30000-0x0000025529D40000-memory.dmp

Filesize
64KB

Download
memory/2960-29-0x0000025529D30000-0x0000025529D40000-memory.dmp

Filesize
64KB

Download
memory/2960-32-0x0000025529D30000-0x0000025529D40000-memory.dmp

Filesize
64KB

Download
memory/3136-99-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/3136-97-0x000001EB752E0000-0x000001EB752F0000-memory.dmp

Filesize
64KB

Download
memory/3136-96-0x000001EB752E0000-0x000001EB752F0000-memory.dmp

Filesize
64KB

Download
memory/3136-95-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/4596-39-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/4596-40-0x00000248ECFF0000-0x00000248ED000000-memory.dmp

Filesize
64KB

Download
memory/4596-66-0x00007FFF19E50000-0x00007FFF1A912000-memory.dmp

Filesize
10.8MB

Download
memory/4596-41-0x00000248ECFF0000-0x00000248ED000000-memory.dmp

Filesize
64KB

Download
memory/4596-64-0x00000248ECFF0000-0x00000248ED000000-memory.dmp

Filesize
64KB

Download