umbral | a8e15ff3f763f5f153b46ba983847396c121e055942473863aaf40368e62c198

Analysis

max time kernel
1330s
max time network
1153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2024 22:20

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General

Target

Nursultan.exe
Size

13.3MB
MD5

f6c0feffe54fa282026b99660ee2f36e
SHA1

1df776d7ee9fca88331dd7451704811ffaaeeca9
SHA256

a8e15ff3f763f5f153b46ba983847396c121e055942473863aaf40368e62c198
SHA512

bb14c616b5e0dd6259e24ce8a9c2e6f5fd5e40518c8f13a200b52330c56465620460d24b2f820b34615b9120fbeb8d366bfc80b7d6ab88d8adfcf3e7e19afe23
SSDEEP

196608:nB2xmjsScoe5Q1QmUrctfXJqsg/WAGlBE32no2qouSgiKB0nOgM8pg50d1/Kc6IX:imIFTmUIwsgCm3t2GyKG5jMtIQvA9

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000400000001e792-14.dat	family_umbral
behavioral1/memory/3032-22-0x0000015D8EDC0000-0x0000015D8EE00000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3088	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Лаунчер VIP тарифа.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	Nursultan.exe

Executes dropped EXE 2 IoCs

pid	Process
4700	роблакс.exe
3032	Лаунчер VIP тарифа.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
22	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
16	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3188	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4000	PING.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
3032	Лаунчер VIP тарифа.exe
3088	powershell.exe
3088	powershell.exe
4044	powershell.exe
4700	роблакс.exe
4700	роблакс.exe
4044	powershell.exe
2952	powershell.exe
2952	powershell.exe
764	powershell.exe
764	powershell.exe
1032	powershell.exe
1032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	Лаунчер VIP тарифа.exe
Token: SeIncreaseQuotaPrivilege	4736	wmic.exe
Token: SeSecurityPrivilege	4736	wmic.exe
Token: SeTakeOwnershipPrivilege	4736	wmic.exe
Token: SeLoadDriverPrivilege	4736	wmic.exe
Token: SeSystemProfilePrivilege	4736	wmic.exe
Token: SeSystemtimePrivilege	4736	wmic.exe
Token: SeProfSingleProcessPrivilege	4736	wmic.exe
Token: SeIncBasePriorityPrivilege	4736	wmic.exe
Token: SeCreatePagefilePrivilege	4736	wmic.exe
Token: SeBackupPrivilege	4736	wmic.exe
Token: SeRestorePrivilege	4736	wmic.exe
Token: SeShutdownPrivilege	4736	wmic.exe
Token: SeDebugPrivilege	4736	wmic.exe
Token: SeSystemEnvironmentPrivilege	4736	wmic.exe
Token: SeRemoteShutdownPrivilege	4736	wmic.exe
Token: SeUndockPrivilege	4736	wmic.exe
Token: SeManageVolumePrivilege	4736	wmic.exe
Token: 33	4736	wmic.exe
Token: 34	4736	wmic.exe
Token: 35	4736	wmic.exe
Token: 36	4736	wmic.exe
Token: SeIncreaseQuotaPrivilege	4736	wmic.exe
Token: SeSecurityPrivilege	4736	wmic.exe
Token: SeTakeOwnershipPrivilege	4736	wmic.exe
Token: SeLoadDriverPrivilege	4736	wmic.exe
Token: SeSystemProfilePrivilege	4736	wmic.exe
Token: SeSystemtimePrivilege	4736	wmic.exe
Token: SeProfSingleProcessPrivilege	4736	wmic.exe
Token: SeIncBasePriorityPrivilege	4736	wmic.exe
Token: SeCreatePagefilePrivilege	4736	wmic.exe
Token: SeBackupPrivilege	4736	wmic.exe
Token: SeRestorePrivilege	4736	wmic.exe
Token: SeShutdownPrivilege	4736	wmic.exe
Token: SeDebugPrivilege	4736	wmic.exe
Token: SeSystemEnvironmentPrivilege	4736	wmic.exe
Token: SeRemoteShutdownPrivilege	4736	wmic.exe
Token: SeUndockPrivilege	4736	wmic.exe
Token: SeManageVolumePrivilege	4736	wmic.exe
Token: 33	4736	wmic.exe
Token: 34	4736	wmic.exe
Token: 35	4736	wmic.exe
Token: 36	4736	wmic.exe
Token: SeDebugPrivilege	3088	powershell.exe
Token: SeDebugPrivilege	4044	powershell.exe
Token: SeDebugPrivilege	2952	powershell.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeIncreaseQuotaPrivilege	1768	wmic.exe
Token: SeSecurityPrivilege	1768	wmic.exe
Token: SeTakeOwnershipPrivilege	1768	wmic.exe
Token: SeLoadDriverPrivilege	1768	wmic.exe
Token: SeSystemProfilePrivilege	1768	wmic.exe
Token: SeSystemtimePrivilege	1768	wmic.exe
Token: SeProfSingleProcessPrivilege	1768	wmic.exe
Token: SeIncBasePriorityPrivilege	1768	wmic.exe
Token: SeCreatePagefilePrivilege	1768	wmic.exe
Token: SeBackupPrivilege	1768	wmic.exe
Token: SeRestorePrivilege	1768	wmic.exe
Token: SeShutdownPrivilege	1768	wmic.exe
Token: SeDebugPrivilege	1768	wmic.exe
Token: SeSystemEnvironmentPrivilege	1768	wmic.exe
Token: SeRemoteShutdownPrivilege	1768	wmic.exe
Token: SeUndockPrivilege	1768	wmic.exe
Token: SeManageVolumePrivilege	1768	wmic.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 4700	3832	Nursultan.exe	85
PID 3832 wrote to memory of 4700	3832	Nursultan.exe	85
PID 3832 wrote to memory of 3032	3832	Nursultan.exe	87
PID 3832 wrote to memory of 3032	3832	Nursultan.exe	87
PID 3032 wrote to memory of 4736	3032	Лаунчер VIP тарифа.exe	88
PID 3032 wrote to memory of 4736	3032	Лаунчер VIP тарифа.exe	88
PID 3032 wrote to memory of 2100	3032	Лаунчер VIP тарифа.exe	91
PID 3032 wrote to memory of 2100	3032	Лаунчер VIP тарифа.exe	91
PID 3032 wrote to memory of 3088	3032	Лаунчер VIP тарифа.exe	93
PID 3032 wrote to memory of 3088	3032	Лаунчер VIP тарифа.exe	93
PID 3032 wrote to memory of 4044	3032	Лаунчер VIP тарифа.exe	95
PID 3032 wrote to memory of 4044	3032	Лаунчер VIP тарифа.exe	95
PID 3032 wrote to memory of 2952	3032	Лаунчер VIP тарифа.exe	97
PID 3032 wrote to memory of 2952	3032	Лаунчер VIP тарифа.exe	97
PID 3032 wrote to memory of 764	3032	Лаунчер VIP тарифа.exe	99
PID 3032 wrote to memory of 764	3032	Лаунчер VIP тарифа.exe	99
PID 3032 wrote to memory of 1768	3032	Лаунчер VIP тарифа.exe	101
PID 3032 wrote to memory of 1768	3032	Лаунчер VIP тарифа.exe	101
PID 3032 wrote to memory of 4036	3032	Лаунчер VIP тарифа.exe	103
PID 3032 wrote to memory of 4036	3032	Лаунчер VIP тарифа.exe	103
PID 3032 wrote to memory of 3852	3032	Лаунчер VIP тарифа.exe	105
PID 3032 wrote to memory of 3852	3032	Лаунчер VIP тарифа.exe	105
PID 3032 wrote to memory of 1032	3032	Лаунчер VIP тарифа.exe	107
PID 3032 wrote to memory of 1032	3032	Лаунчер VIP тарифа.exe	107
PID 3032 wrote to memory of 3188	3032	Лаунчер VIP тарифа.exe	109
PID 3032 wrote to memory of 3188	3032	Лаунчер VIP тарифа.exe	109
PID 3032 wrote to memory of 892	3032	Лаунчер VIP тарифа.exe	111
PID 3032 wrote to memory of 892	3032	Лаунчер VIP тарифа.exe	111
PID 892 wrote to memory of 4000	892	cmd.exe	113
PID 892 wrote to memory of 4000	892	cmd.exe	113

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2100	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Nursultan.exe
"C:\Users\Admin\AppData\Local\Temp\Nursultan.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Users\Admin\AppData\Local\Temp\роблакс.exe
  "C:\Users\Admin\AppData\Local\Temp\роблакс.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:4700
- C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe
  "C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4736
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe"
    3⤵
    - Views/modifies file attributes
    PID:2100
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3088
- - 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⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4044
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2952
- - 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:764
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1768
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:4036
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:3852
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1032
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:3188
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe" && pause
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:892
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      Runs ping.exe
      PID:4000

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
e4d5f16dff1c6c4bd78c48253f411da2

SHA1
0fb7366585572b2cf4144d169302ba21d8e71ac3

SHA256
360fe2bf9d46f0e6bb35c1b41ba0d70c5f10a1a9b42e29d9cafea37de5964133

SHA512
27cb84814bf84d0db623e68c06b6391e63d985d5fe77a9d6ca9093329fbe73da490bb9bef67fea667d2d03b1d42ed5b4591f9e72c281c15965d0765c019d4b69

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
efe05055dc30f1da03bd1653594f8b0a

SHA1
8650a67ec9d1b8eed7caa4e4c86ebb8531bc7ba2

SHA256
10b3d946f07601b28c5cd6ee36fd0fffb41f3d96094a478d088ce30ebf9a694d

SHA512
5096856b34336cafbd2ee4dc4709bfa39c8794d8fc42777a460b79d52482b699013f237dfee2ecaf2b21487cc933b807bc5bad9b81f7070ba0dc4f6efcfa2f36

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

Filesize
1KB

MD5
e0ec6bf376a6b15852bce768196c5ed0

SHA1
05fe4e592ebbb7e29f36b8d30a6a90ba29bd4f81

SHA256
2d4a39cbbd597a7cfff477817c3c7c541c14974c8d234b4c0de6d229e3a3ce97

SHA512
dc0c7d3d127c88affea9ae402d7358c079cfa7fc3ecb417085e31dc749da1406e72563bfbe42167fdad57e10aa0c6cca7a8ba06921b3a1212ad7ccee1a0f859b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oaa5ar0u.tgz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\Лаунчер VIP тарифа.exe

Filesize
229KB

MD5
932bb925ba94fb9096eabb74c165d022

SHA1
ab7d3a610df8f692c0274d960b570f35df23b478

SHA256
d71c1bb48698064988136ff5e9284c2ffbc6bffcd7b8c6e39b00d7a9e85c3087

SHA512
a36e76dc82b4efc41b312763c7ede87aa0b02f7a0067e89ac84461675b228ac024ab91d1e61b03a193948ce8904f20de2e14ce965d8db814c8e36c621b24d355

Download Submit
C:\Users\Admin\AppData\Local\Temp\роблакс.exe

Filesize
14.4MB

MD5
888b6182409ced36aaea7f22268bceab

SHA1
b62d12c12f46c739e34241bc3590b6888c31d7f4

SHA256
11ccb1d864900ecb4d5c683d8e83dc6c0f55d8c89bcd7357e310598b7846d0de

SHA512
b6398b5a1cf3ae0b698cc7074d2a59d1415689b50f2e7751164fd22e8fd2024ea0d97590366c30c74a0539e6cc83f8fcac0b53e5f68e62d98d242646b4a9c72e

Download Submit
memory/3032-22-0x0000015D8EDC0000-0x0000015D8EE00000-memory.dmp

Filesize
256KB

Download
memory/3032-112-0x00007FF86A550000-0x00007FF86B011000-memory.dmp

Filesize
10.8MB

Download
memory/3032-24-0x00007FF86A550000-0x00007FF86B011000-memory.dmp

Filesize
10.8MB

Download
memory/3032-94-0x0000015DA92F0000-0x0000015DA9302000-memory.dmp

Filesize
72KB

Download
memory/3032-93-0x0000015DA92C0000-0x0000015DA92CA000-memory.dmp

Filesize
40KB

Download
memory/3032-55-0x0000015DA9570000-0x0000015DA95E6000-memory.dmp

Filesize
472KB

Download
memory/3032-56-0x0000015DA9250000-0x0000015DA92A0000-memory.dmp

Filesize
320KB

Download
memory/3032-57-0x0000015D90A40000-0x0000015D90A5E000-memory.dmp

Filesize
120KB

Download
memory/3088-26-0x000001F14CBB0000-0x000001F14CBD2000-memory.dmp

Filesize
136KB

Download
memory/3832-2-0x00007FF86A550000-0x00007FF86B011000-memory.dmp

Filesize
10.8MB

Download
memory/3832-0-0x00007FF86A553000-0x00007FF86A555000-memory.dmp

Filesize
8KB

Download
memory/3832-1-0x0000000000AC0000-0x0000000001812000-memory.dmp

Filesize
13.3MB

Download
memory/3832-23-0x00007FF86A550000-0x00007FF86B011000-memory.dmp

Filesize
10.8MB

Download
memory/4700-49-0x0000000140000000-0x0000000141C1B000-memory.dmp

Filesize
28.1MB

Download
memory/4700-47-0x00007FF8887D0000-0x00007FF8887D2000-memory.dmp

Filesize
8KB

Download