umbral | 10fc7787e75df4375d177ade5d874691e815204bba4034b54a2b053ad26a1f0d

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 02:22

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General

Target

mapleC2.exe
Size

229KB
MD5

8fdc5324c6283723749bec8199a6078e
SHA1

d9480e0b5d4dffbc82f542c66d3f0efc0f18c95c
SHA256

10fc7787e75df4375d177ade5d874691e815204bba4034b54a2b053ad26a1f0d
SHA512

f375bec52dfd7f6f86db525a734c9331152975ad43633b77fc2fb0df31c4e3e408410ab14262fc9f6af650f8ae6c1fa15583c7828cdf0b1ade1c9be6548ae3f4
SSDEEP

6144:tloZM0rIkd8g+EtXHkv/iD4JRBJoOJBidHaIJtMVtb8e1mj5i:voZDL+EP8JRBJoOJBidHaIJtMfkg

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1840-1-0x000001AFD8FB0000-0x000001AFD8FF0000-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
3676	powershell.exe
2580	powershell.exe
4680	powershell.exe
3320	powershell.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 2 IoCs

Web Service

T1102

flow	ioc
20	discord.com
21	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
8	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4216	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1840	mapleC2.exe
3676	powershell.exe
3676	powershell.exe
2580	powershell.exe
2580	powershell.exe
4680	powershell.exe
4680	powershell.exe
3256	powershell.exe
3256	powershell.exe
3320	powershell.exe
3320	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1840	mapleC2.exe
Token: SeIncreaseQuotaPrivilege	4588	wmic.exe
Token: SeSecurityPrivilege	4588	wmic.exe
Token: SeTakeOwnershipPrivilege	4588	wmic.exe
Token: SeLoadDriverPrivilege	4588	wmic.exe
Token: SeSystemProfilePrivilege	4588	wmic.exe
Token: SeSystemtimePrivilege	4588	wmic.exe
Token: SeProfSingleProcessPrivilege	4588	wmic.exe
Token: SeIncBasePriorityPrivilege	4588	wmic.exe
Token: SeCreatePagefilePrivilege	4588	wmic.exe
Token: SeBackupPrivilege	4588	wmic.exe
Token: SeRestorePrivilege	4588	wmic.exe
Token: SeShutdownPrivilege	4588	wmic.exe
Token: SeDebugPrivilege	4588	wmic.exe
Token: SeSystemEnvironmentPrivilege	4588	wmic.exe
Token: SeRemoteShutdownPrivilege	4588	wmic.exe
Token: SeUndockPrivilege	4588	wmic.exe
Token: SeManageVolumePrivilege	4588	wmic.exe
Token: 33	4588	wmic.exe
Token: 34	4588	wmic.exe
Token: 35	4588	wmic.exe
Token: 36	4588	wmic.exe
Token: SeIncreaseQuotaPrivilege	4588	wmic.exe
Token: SeSecurityPrivilege	4588	wmic.exe
Token: SeTakeOwnershipPrivilege	4588	wmic.exe
Token: SeLoadDriverPrivilege	4588	wmic.exe
Token: SeSystemProfilePrivilege	4588	wmic.exe
Token: SeSystemtimePrivilege	4588	wmic.exe
Token: SeProfSingleProcessPrivilege	4588	wmic.exe
Token: SeIncBasePriorityPrivilege	4588	wmic.exe
Token: SeCreatePagefilePrivilege	4588	wmic.exe
Token: SeBackupPrivilege	4588	wmic.exe
Token: SeRestorePrivilege	4588	wmic.exe
Token: SeShutdownPrivilege	4588	wmic.exe
Token: SeDebugPrivilege	4588	wmic.exe
Token: SeSystemEnvironmentPrivilege	4588	wmic.exe
Token: SeRemoteShutdownPrivilege	4588	wmic.exe
Token: SeUndockPrivilege	4588	wmic.exe
Token: SeManageVolumePrivilege	4588	wmic.exe
Token: 33	4588	wmic.exe
Token: 34	4588	wmic.exe
Token: 35	4588	wmic.exe
Token: 36	4588	wmic.exe
Token: SeDebugPrivilege	3676	powershell.exe
Token: SeDebugPrivilege	2580	powershell.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	3256	powershell.exe
Token: SeIncreaseQuotaPrivilege	2460	wmic.exe
Token: SeSecurityPrivilege	2460	wmic.exe
Token: SeTakeOwnershipPrivilege	2460	wmic.exe
Token: SeLoadDriverPrivilege	2460	wmic.exe
Token: SeSystemProfilePrivilege	2460	wmic.exe
Token: SeSystemtimePrivilege	2460	wmic.exe
Token: SeProfSingleProcessPrivilege	2460	wmic.exe
Token: SeIncBasePriorityPrivilege	2460	wmic.exe
Token: SeCreatePagefilePrivilege	2460	wmic.exe
Token: SeBackupPrivilege	2460	wmic.exe
Token: SeRestorePrivilege	2460	wmic.exe
Token: SeShutdownPrivilege	2460	wmic.exe
Token: SeDebugPrivilege	2460	wmic.exe
Token: SeSystemEnvironmentPrivilege	2460	wmic.exe
Token: SeRemoteShutdownPrivilege	2460	wmic.exe
Token: SeUndockPrivilege	2460	wmic.exe
Token: SeManageVolumePrivilege	2460	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 4588	1840	mapleC2.exe	82
PID 1840 wrote to memory of 4588	1840	mapleC2.exe	82
PID 1840 wrote to memory of 3676	1840	mapleC2.exe	85
PID 1840 wrote to memory of 3676	1840	mapleC2.exe	85
PID 1840 wrote to memory of 2580	1840	mapleC2.exe	87
PID 1840 wrote to memory of 2580	1840	mapleC2.exe	87
PID 1840 wrote to memory of 4680	1840	mapleC2.exe	89
PID 1840 wrote to memory of 4680	1840	mapleC2.exe	89
PID 1840 wrote to memory of 3256	1840	mapleC2.exe	91
PID 1840 wrote to memory of 3256	1840	mapleC2.exe	91
PID 1840 wrote to memory of 2460	1840	mapleC2.exe	93
PID 1840 wrote to memory of 2460	1840	mapleC2.exe	93
PID 1840 wrote to memory of 4864	1840	mapleC2.exe	95
PID 1840 wrote to memory of 4864	1840	mapleC2.exe	95
PID 1840 wrote to memory of 5020	1840	mapleC2.exe	97
PID 1840 wrote to memory of 5020	1840	mapleC2.exe	97
PID 1840 wrote to memory of 3320	1840	mapleC2.exe	99
PID 1840 wrote to memory of 3320	1840	mapleC2.exe	99
PID 1840 wrote to memory of 4216	1840	mapleC2.exe	101
PID 1840 wrote to memory of 4216	1840	mapleC2.exe	101

C:\Users\Admin\AppData\Local\Temp\mapleC2.exe
"C:\Users\Admin\AppData\Local\Temp\mapleC2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4588
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\mapleC2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3676
- 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:2580
- 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:4680
- 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:3256
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2460
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4864
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5020
- 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:3320
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4216

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
bc051b3c05d1eb94762dce48e30f69d2

SHA1
014ec7fdc6303d58ead35afc65e186f9c66de9e2

SHA256
4849d78ba5085ee3c5fef729f8a6e1c6415333d4a3926370c681946a326c999b

SHA512
3d072c51513c71cd28897702dc380e2600a4c60f1d5b4ed59f6340c1f13270043e0a5c14b7aae0fa55a6fcd628456f69248aeb152027c9f6ee15179beb99992b

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
92e6ed9cdc78757aa577516122629886

SHA1
24eedb3f4ed4556ae0196951655e6805916d6be8

SHA256
ab40b81b07c4c344706089447c1ff4db1f9ea0354e4f7052c821416fc67f9f66

SHA512
7c6ceb4714d4a7e91f81d2128cb23bc7398d6b79a7dc75d78d460dd530d5caa2e11ebadcbf1e842b1cfcaabcf4839c442bf92ccae2906db917722b7321f4fef9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s4iamz0r.m4e.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1840-71-0x000001AFF3770000-0x000001AFF377A000-memory.dmp

Filesize
40KB

Download
memory/1840-34-0x000001AFF3660000-0x000001AFF367E000-memory.dmp

Filesize
120KB

Download
memory/1840-92-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/1840-72-0x000001AFF37A0000-0x000001AFF37B2000-memory.dmp

Filesize
72KB

Download
memory/1840-2-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/1840-32-0x000001AFF36E0000-0x000001AFF3756000-memory.dmp

Filesize
472KB

Download
memory/1840-33-0x000001AFF3690000-0x000001AFF36E0000-memory.dmp

Filesize
320KB

Download
memory/1840-0-0x00007FFB39E23000-0x00007FFB39E25000-memory.dmp

Filesize
8KB

Download
memory/1840-1-0x000001AFD8FB0000-0x000001AFD8FF0000-memory.dmp

Filesize
256KB

Download
memory/3676-11-0x000001AA35B30000-0x000001AA35B52000-memory.dmp

Filesize
136KB

Download
memory/3676-4-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/3676-3-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/3676-5-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/3676-18-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download