umbral | 370620165c957e452b1216e0a328c8299d02590e5711507d99c37a79f91238fe

Analysis

max time kernel
16s
max time network
18s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 15:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

oxcy shop free.rar
Size

101KB
MD5

a7cf913da3ae706b61d76f571ca41e7a
SHA1

a3d31812772aa1d05d39ddade8f641383670a1ef
SHA256

370620165c957e452b1216e0a328c8299d02590e5711507d99c37a79f91238fe
SHA512

ed3f374d111a42c87eda9a1dee7f321fb5b56580b7043ab38c77ab1b78d874c5d8a2782ed04e99f9e58361748a89c9bfe31cd6e6f9f4121330db5e2def480852
SSDEEP

3072:oSuHQ8v37Vyd8JjEU90bQB/Vt35GXN3v1oh:3uHQ8jVydWd90baVtsHe

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000023b67-4.dat	family_umbral
behavioral1/memory/624-13-0x000001F467150000-0x000001F467196000-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

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1636	powershell.exe
3208	powershell.exe
1872	powershell.exe
2160	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
624	oxcy shop free.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 1 IoCs

Web Service

T1102

flow	ioc
30	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
17	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
2504	PING.EXE
4484	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3016	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2504	PING.EXE

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
624	oxcy shop free.exe
1636	powershell.exe
1636	powershell.exe
3208	powershell.exe
3208	powershell.exe
1872	powershell.exe
1872	powershell.exe
1124	powershell.exe
1124	powershell.exe
2160	powershell.exe
2160	powershell.exe
3388	7zFM.exe
3388	7zFM.exe
3388	7zFM.exe
3388	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3388	7zFM.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeRestorePrivilege	3388	7zFM.exe
Token: 35	3388	7zFM.exe
Token: SeSecurityPrivilege	3388	7zFM.exe
Token: SeDebugPrivilege	624	oxcy shop free.exe
Token: SeIncreaseQuotaPrivilege	4780	wmic.exe
Token: SeSecurityPrivilege	4780	wmic.exe
Token: SeTakeOwnershipPrivilege	4780	wmic.exe
Token: SeLoadDriverPrivilege	4780	wmic.exe
Token: SeSystemProfilePrivilege	4780	wmic.exe
Token: SeSystemtimePrivilege	4780	wmic.exe
Token: SeProfSingleProcessPrivilege	4780	wmic.exe
Token: SeIncBasePriorityPrivilege	4780	wmic.exe
Token: SeCreatePagefilePrivilege	4780	wmic.exe
Token: SeBackupPrivilege	4780	wmic.exe
Token: SeRestorePrivilege	4780	wmic.exe
Token: SeShutdownPrivilege	4780	wmic.exe
Token: SeDebugPrivilege	4780	wmic.exe
Token: SeSystemEnvironmentPrivilege	4780	wmic.exe
Token: SeRemoteShutdownPrivilege	4780	wmic.exe
Token: SeUndockPrivilege	4780	wmic.exe
Token: SeManageVolumePrivilege	4780	wmic.exe
Token: 33	4780	wmic.exe
Token: 34	4780	wmic.exe
Token: 35	4780	wmic.exe
Token: 36	4780	wmic.exe
Token: SeIncreaseQuotaPrivilege	4780	wmic.exe
Token: SeSecurityPrivilege	4780	wmic.exe
Token: SeTakeOwnershipPrivilege	4780	wmic.exe
Token: SeLoadDriverPrivilege	4780	wmic.exe
Token: SeSystemProfilePrivilege	4780	wmic.exe
Token: SeSystemtimePrivilege	4780	wmic.exe
Token: SeProfSingleProcessPrivilege	4780	wmic.exe
Token: SeIncBasePriorityPrivilege	4780	wmic.exe
Token: SeCreatePagefilePrivilege	4780	wmic.exe
Token: SeBackupPrivilege	4780	wmic.exe
Token: SeRestorePrivilege	4780	wmic.exe
Token: SeShutdownPrivilege	4780	wmic.exe
Token: SeDebugPrivilege	4780	wmic.exe
Token: SeSystemEnvironmentPrivilege	4780	wmic.exe
Token: SeRemoteShutdownPrivilege	4780	wmic.exe
Token: SeUndockPrivilege	4780	wmic.exe
Token: SeManageVolumePrivilege	4780	wmic.exe
Token: 33	4780	wmic.exe
Token: 34	4780	wmic.exe
Token: 35	4780	wmic.exe
Token: 36	4780	wmic.exe
Token: SeDebugPrivilege	1636	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeDebugPrivilege	1872	powershell.exe
Token: SeDebugPrivilege	1124	powershell.exe
Token: SeIncreaseQuotaPrivilege	4848	wmic.exe
Token: SeSecurityPrivilege	4848	wmic.exe
Token: SeTakeOwnershipPrivilege	4848	wmic.exe
Token: SeLoadDriverPrivilege	4848	wmic.exe
Token: SeSystemProfilePrivilege	4848	wmic.exe
Token: SeSystemtimePrivilege	4848	wmic.exe
Token: SeProfSingleProcessPrivilege	4848	wmic.exe
Token: SeIncBasePriorityPrivilege	4848	wmic.exe
Token: SeCreatePagefilePrivilege	4848	wmic.exe
Token: SeBackupPrivilege	4848	wmic.exe
Token: SeRestorePrivilege	4848	wmic.exe
Token: SeShutdownPrivilege	4848	wmic.exe
Token: SeDebugPrivilege	4848	wmic.exe
Token: SeSystemEnvironmentPrivilege	4848	wmic.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3388	7zFM.exe
3388	7zFM.exe
3388	7zFM.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3388 wrote to memory of 624	3388	7zFM.exe	85
PID 3388 wrote to memory of 624	3388	7zFM.exe	85
PID 624 wrote to memory of 4780	624	oxcy shop free.exe	88
PID 624 wrote to memory of 4780	624	oxcy shop free.exe	88
PID 624 wrote to memory of 3796	624	oxcy shop free.exe	92
PID 624 wrote to memory of 3796	624	oxcy shop free.exe	92
PID 624 wrote to memory of 1636	624	oxcy shop free.exe	94
PID 624 wrote to memory of 1636	624	oxcy shop free.exe	94
PID 624 wrote to memory of 3208	624	oxcy shop free.exe	96
PID 624 wrote to memory of 3208	624	oxcy shop free.exe	96
PID 624 wrote to memory of 1872	624	oxcy shop free.exe	98
PID 624 wrote to memory of 1872	624	oxcy shop free.exe	98
PID 624 wrote to memory of 1124	624	oxcy shop free.exe	100
PID 624 wrote to memory of 1124	624	oxcy shop free.exe	100
PID 624 wrote to memory of 4848	624	oxcy shop free.exe	105
PID 624 wrote to memory of 4848	624	oxcy shop free.exe	105
PID 624 wrote to memory of 4168	624	oxcy shop free.exe	107
PID 624 wrote to memory of 4168	624	oxcy shop free.exe	107
PID 624 wrote to memory of 3640	624	oxcy shop free.exe	109
PID 624 wrote to memory of 3640	624	oxcy shop free.exe	109
PID 624 wrote to memory of 2160	624	oxcy shop free.exe	113
PID 624 wrote to memory of 2160	624	oxcy shop free.exe	113
PID 624 wrote to memory of 3016	624	oxcy shop free.exe	115
PID 624 wrote to memory of 3016	624	oxcy shop free.exe	115
PID 624 wrote to memory of 4484	624	oxcy shop free.exe	117
PID 624 wrote to memory of 4484	624	oxcy shop free.exe	117
PID 4484 wrote to memory of 2504	4484	cmd.exe	119
PID 4484 wrote to memory of 2504	4484	cmd.exe	119

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3796	attrib.exe

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\oxcy shop free.rar"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4780
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe"
    3⤵
    - Views/modifies file attributes
    PID:3796
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1636
- - 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
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3208
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1872
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1124
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4848
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:4168
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:3640
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:2160
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:3016
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe" && pause
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4484
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2504

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

Replay Monitor

Loading Replay Monitor...

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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

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

Filesize
948B

MD5
4968a733ec5db6a3352d1601a8cad7b3

SHA1
17e2e358e984d7d6154c4ca3295312e40e4f23e3

SHA256
850dde6b7156cfde7a054e17bdeaac9d62b32b72a761874f7ef911d43acdb86a

SHA512
92322550384df2e2a8400bbb4ef9379bf7f8d4deccf4e9fc0dead33d4755227e57ca8b276dcb62c47ae58b938ecabf0419de20eda66d49aca5f3828eed1b124e

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
107102102e02e48f37f5318c7e113c43

SHA1
7fb10fc65c85fb4c050309f0872bc9389dcccc0d

SHA256
3c3f49948c1e832c86b959c32bc288ddedb500534b74df082f8967fc7f9976f7

SHA512
b108a47d7c3dd154cad44362b6cd557b7064096383d100e6cd64bfb19c4e2ad878ed4ee800776322ad3cc4bb721fb675b0ecab8f5661024188fa3aa19561841b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zOC3D144A7\oxcy shop free.exe

Filesize
254KB

MD5
4cec5f90a64f2400b711ca47b403f566

SHA1
3a97fffd48232ae815e98ccd0e123809b94f161c

SHA256
6b086ea488dc752444f4941a08ba27afeda1c0dcae0f727c8c247369e3cc8005

SHA512
4c6d5250b55df718e9c9b08f14da9fe049bb44c35110feaa5f3fac014b4f9cfc455b33b5e8affbf16e5eb7c48d1b6354e1e900d3019ce4de8306058353fc6012

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rpgp4uvz.pzc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/624-41-0x000001F4698F0000-0x000001F469966000-memory.dmp

Filesize
472KB

Download
memory/624-42-0x000001F469870000-0x000001F4698C0000-memory.dmp

Filesize
320KB

Download
memory/624-43-0x000001F469050000-0x000001F46906E000-memory.dmp

Filesize
120KB

Download
memory/624-14-0x00007FFB1A370000-0x00007FFB1AE31000-memory.dmp

Filesize
10.8MB

Download
memory/624-13-0x000001F467150000-0x000001F467196000-memory.dmp

Filesize
280KB

Download
memory/624-80-0x000001F469080000-0x000001F46908A000-memory.dmp

Filesize
40KB

Download
memory/624-81-0x000001F469970000-0x000001F469982000-memory.dmp

Filesize
72KB

Download
memory/624-12-0x00007FFB1A373000-0x00007FFB1A375000-memory.dmp

Filesize
8KB

Download
memory/624-101-0x00007FFB1A370000-0x00007FFB1AE31000-memory.dmp

Filesize
10.8MB

Download
memory/1636-20-0x000002396C110000-0x000002396C132000-memory.dmp

Filesize
136KB

Download