umbral | 43927b3cb128dd846d6dfee02f7ca6781315a201740720c8f16b4d12161280b0

Analysis

max time kernel
433s
max time network
436s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 16:29

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General

Target

GalaxySwapper.exe
Size

230KB
MD5

a559050bd6be1e2a2f6e980db70d89b6
SHA1

fa02028065c65f9961f99a6766a8493f7fc1c279
SHA256

43927b3cb128dd846d6dfee02f7ca6781315a201740720c8f16b4d12161280b0
SHA512

0d6f9d2c1d5fd748f0f202299a8484ade4796a491b047a739cf9c2e4a9c9f9460f524ed4602e6fea3f25537d4908642ffdec3747e2ecd8cd79f3bd8ca645f3c8
SSDEEP

6144:TloZMcrIkd8g+EtXHkv/iD4QKUb/1+mpXsl3ySXq82b8e1mWVpi:RoZzL+EP8QKUb/1+mpXsl3ySXANw

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2736-0-0x0000027E257D0000-0x0000027E25810000-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
4552	powershell.exe
4728	powershell.exe
2716	powershell.exe
2648	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	GalaxySwapper.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
23	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
3	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3964	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2736	GalaxySwapper.exe
4552	powershell.exe
4552	powershell.exe
4728	powershell.exe
4728	powershell.exe
2716	powershell.exe
2716	powershell.exe
3864	powershell.exe
3864	powershell.exe
2648	powershell.exe
2648	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	GalaxySwapper.exe
Token: SeIncreaseQuotaPrivilege	3800	wmic.exe
Token: SeSecurityPrivilege	3800	wmic.exe
Token: SeTakeOwnershipPrivilege	3800	wmic.exe
Token: SeLoadDriverPrivilege	3800	wmic.exe
Token: SeSystemProfilePrivilege	3800	wmic.exe
Token: SeSystemtimePrivilege	3800	wmic.exe
Token: SeProfSingleProcessPrivilege	3800	wmic.exe
Token: SeIncBasePriorityPrivilege	3800	wmic.exe
Token: SeCreatePagefilePrivilege	3800	wmic.exe
Token: SeBackupPrivilege	3800	wmic.exe
Token: SeRestorePrivilege	3800	wmic.exe
Token: SeShutdownPrivilege	3800	wmic.exe
Token: SeDebugPrivilege	3800	wmic.exe
Token: SeSystemEnvironmentPrivilege	3800	wmic.exe
Token: SeRemoteShutdownPrivilege	3800	wmic.exe
Token: SeUndockPrivilege	3800	wmic.exe
Token: SeManageVolumePrivilege	3800	wmic.exe
Token: 33	3800	wmic.exe
Token: 34	3800	wmic.exe
Token: 35	3800	wmic.exe
Token: 36	3800	wmic.exe
Token: SeIncreaseQuotaPrivilege	3800	wmic.exe
Token: SeSecurityPrivilege	3800	wmic.exe
Token: SeTakeOwnershipPrivilege	3800	wmic.exe
Token: SeLoadDriverPrivilege	3800	wmic.exe
Token: SeSystemProfilePrivilege	3800	wmic.exe
Token: SeSystemtimePrivilege	3800	wmic.exe
Token: SeProfSingleProcessPrivilege	3800	wmic.exe
Token: SeIncBasePriorityPrivilege	3800	wmic.exe
Token: SeCreatePagefilePrivilege	3800	wmic.exe
Token: SeBackupPrivilege	3800	wmic.exe
Token: SeRestorePrivilege	3800	wmic.exe
Token: SeShutdownPrivilege	3800	wmic.exe
Token: SeDebugPrivilege	3800	wmic.exe
Token: SeSystemEnvironmentPrivilege	3800	wmic.exe
Token: SeRemoteShutdownPrivilege	3800	wmic.exe
Token: SeUndockPrivilege	3800	wmic.exe
Token: SeManageVolumePrivilege	3800	wmic.exe
Token: 33	3800	wmic.exe
Token: 34	3800	wmic.exe
Token: 35	3800	wmic.exe
Token: 36	3800	wmic.exe
Token: SeDebugPrivilege	4552	powershell.exe
Token: SeDebugPrivilege	4728	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	3864	powershell.exe
Token: SeIncreaseQuotaPrivilege	1340	wmic.exe
Token: SeSecurityPrivilege	1340	wmic.exe
Token: SeTakeOwnershipPrivilege	1340	wmic.exe
Token: SeLoadDriverPrivilege	1340	wmic.exe
Token: SeSystemProfilePrivilege	1340	wmic.exe
Token: SeSystemtimePrivilege	1340	wmic.exe
Token: SeProfSingleProcessPrivilege	1340	wmic.exe
Token: SeIncBasePriorityPrivilege	1340	wmic.exe
Token: SeCreatePagefilePrivilege	1340	wmic.exe
Token: SeBackupPrivilege	1340	wmic.exe
Token: SeRestorePrivilege	1340	wmic.exe
Token: SeShutdownPrivilege	1340	wmic.exe
Token: SeDebugPrivilege	1340	wmic.exe
Token: SeSystemEnvironmentPrivilege	1340	wmic.exe
Token: SeRemoteShutdownPrivilege	1340	wmic.exe
Token: SeUndockPrivilege	1340	wmic.exe
Token: SeManageVolumePrivilege	1340	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 3800	2736	GalaxySwapper.exe	84
PID 2736 wrote to memory of 3800	2736	GalaxySwapper.exe	84
PID 2736 wrote to memory of 4552	2736	GalaxySwapper.exe	89
PID 2736 wrote to memory of 4552	2736	GalaxySwapper.exe	89
PID 2736 wrote to memory of 4728	2736	GalaxySwapper.exe	91
PID 2736 wrote to memory of 4728	2736	GalaxySwapper.exe	91
PID 2736 wrote to memory of 2716	2736	GalaxySwapper.exe	93
PID 2736 wrote to memory of 2716	2736	GalaxySwapper.exe	93
PID 2736 wrote to memory of 3864	2736	GalaxySwapper.exe	95
PID 2736 wrote to memory of 3864	2736	GalaxySwapper.exe	95
PID 2736 wrote to memory of 1340	2736	GalaxySwapper.exe	97
PID 2736 wrote to memory of 1340	2736	GalaxySwapper.exe	97
PID 2736 wrote to memory of 1864	2736	GalaxySwapper.exe	99
PID 2736 wrote to memory of 1864	2736	GalaxySwapper.exe	99
PID 2736 wrote to memory of 4980	2736	GalaxySwapper.exe	101
PID 2736 wrote to memory of 4980	2736	GalaxySwapper.exe	101
PID 2736 wrote to memory of 2648	2736	GalaxySwapper.exe	103
PID 2736 wrote to memory of 2648	2736	GalaxySwapper.exe	103
PID 2736 wrote to memory of 3964	2736	GalaxySwapper.exe	105
PID 2736 wrote to memory of 3964	2736	GalaxySwapper.exe	105

C:\Users\Admin\AppData\Local\Temp\GalaxySwapper.exe
"C:\Users\Admin\AppData\Local\Temp\GalaxySwapper.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3800
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\GalaxySwapper.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4552
- 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:4728
- 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:2716
- 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:3864
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1340
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1864
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4980
- 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:2648
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3964

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
58b80fe8da7d23cd3c9707f4ce93457e

SHA1
7d1c58b992631d82cabd38d738ccca072c91c124

SHA256
4479db3e2faf952801a1506140f3612e267e9bb4f5d509b0d63204429de8eef3

SHA512
82ef5d29aaf46b5fef467185193f03612058c4bbd7b9926293a79c18deefe137811f95dc59feaa649376c8711ca3253177177b538d2d953147db1ed719cba5e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nwrvhly1.5ce.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2736-71-0x0000027E3FC60000-0x0000027E3FC6A000-memory.dmp

Filesize
40KB

Download
memory/2736-35-0x0000027E3FC40000-0x0000027E3FC5E000-memory.dmp

Filesize
120KB

Download
memory/2736-92-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/2736-88-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/2736-2-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/2736-33-0x0000027E3FF30000-0x0000027E3FFA6000-memory.dmp

Filesize
472KB

Download
memory/2736-34-0x0000027E3FC90000-0x0000027E3FCE0000-memory.dmp

Filesize
320KB

Download
memory/2736-87-0x00007FF9CBF63000-0x00007FF9CBF65000-memory.dmp

Filesize
8KB

Download
memory/2736-1-0x00007FF9CBF63000-0x00007FF9CBF65000-memory.dmp

Filesize
8KB

Download
memory/2736-0-0x0000027E257D0000-0x0000027E25810000-memory.dmp

Filesize
256KB

Download
memory/2736-72-0x0000027E3FFB0000-0x0000027E3FFC2000-memory.dmp

Filesize
72KB

Download
memory/4552-13-0x0000029E438B0000-0x0000029E438D2000-memory.dmp

Filesize
136KB

Download
memory/4552-14-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/4552-15-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/4552-3-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download
memory/4552-18-0x00007FF9CBF60000-0x00007FF9CCA21000-memory.dmp

Filesize
10.8MB

Download