umbral | d9b248ce98a243a37d33096fc7b1cad784ee77f5920b0bd6618a6690ca426f18

Analysis

max time kernel
4s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27-04-2024 12:09

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General

Target

Malinovka Install.exe
Size

319KB
MD5

f69924b642ac4b9ef1dfacdfd43759a9
SHA1

95da50564c7cbc3749148419c68a08b0f2869ee1
SHA256

d9b248ce98a243a37d33096fc7b1cad784ee77f5920b0bd6618a6690ca426f18
SHA512

2334511265c507d16b3a323c721a392659feb405a5d9fea588146c4ef320261166312c2fcf8f494c4aa342e0b5a9d5da20576ce2d6ae1e3215ee47dcc19f5e07
SSDEEP

6144:48loZMCrIkd8g+EtXHkv/iD4DDUgoOJBiLHaIJtM34b8e1mmiW2brXv5P:7oZRL+EP8DDUgoOJBiLHaIJtMQIL/5P

Score

10^/10

umbral xworm rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

phentermine-partial.gl.at.ply.gg:36969

Attributes

Install_directory
%AppData%
install_file
Client.exe
telegram
https://api.telegram.org/bot7080511499:AAGFFOA3S2vvwmEy85SIMhKHrMsAdBoLR2Y

Signatures

Detect Umbral payload 3 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233f9-4.dat	family_umbral
behavioral2/memory/3520-20-0x000001F4EF240000-0x000001F4EF280000-memory.dmp	family_umbral
behavioral2/memory/1868-23-0x0000000000400000-0x0000000000457000-memory.dmp	family_umbral

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233fc-21.dat	family_xworm
behavioral2/memory/1868-23-0x0000000000400000-0x0000000000457000-memory.dmp	family_xworm
behavioral2/memory/848-24-0x0000000000E00000-0x0000000000E1A000-memory.dmp	family_xworm

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Umbral3.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	Malinovka Install.exe
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	XClient.exe

Executes dropped EXE 2 IoCs

pid	Process
3520	Umbral3.exe
848	XClient.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
19	discord.com
20	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
14	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
2736	wmic.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3648	powershell.exe
3648	powershell.exe
4704	powershell.exe
4704	powershell.exe
4988	powershell.exe
4988	powershell.exe
1656	powershell.exe
1656	powershell.exe
5036	powershell.exe
5036	powershell.exe
4504	powershell.exe
4504	powershell.exe
2532	powershell.exe
2532	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	XClient.exe
Token: SeDebugPrivilege	3520	Umbral3.exe
Token: SeDebugPrivilege	3648	powershell.exe
Token: SeDebugPrivilege	4704	powershell.exe
Token: SeDebugPrivilege	4988	powershell.exe
Token: SeDebugPrivilege	1656	powershell.exe
Token: SeIncreaseQuotaPrivilege	1776	wmic.exe
Token: SeSecurityPrivilege	1776	wmic.exe
Token: SeTakeOwnershipPrivilege	1776	wmic.exe
Token: SeLoadDriverPrivilege	1776	wmic.exe
Token: SeSystemProfilePrivilege	1776	wmic.exe
Token: SeSystemtimePrivilege	1776	wmic.exe
Token: SeProfSingleProcessPrivilege	1776	wmic.exe
Token: SeIncBasePriorityPrivilege	1776	wmic.exe
Token: SeCreatePagefilePrivilege	1776	wmic.exe
Token: SeBackupPrivilege	1776	wmic.exe
Token: SeRestorePrivilege	1776	wmic.exe
Token: SeShutdownPrivilege	1776	wmic.exe
Token: SeDebugPrivilege	1776	wmic.exe
Token: SeSystemEnvironmentPrivilege	1776	wmic.exe
Token: SeRemoteShutdownPrivilege	1776	wmic.exe
Token: SeUndockPrivilege	1776	wmic.exe
Token: SeManageVolumePrivilege	1776	wmic.exe
Token: 33	1776	wmic.exe
Token: 34	1776	wmic.exe
Token: 35	1776	wmic.exe
Token: 36	1776	wmic.exe
Token: SeIncreaseQuotaPrivilege	1776	wmic.exe
Token: SeSecurityPrivilege	1776	wmic.exe
Token: SeTakeOwnershipPrivilege	1776	wmic.exe
Token: SeLoadDriverPrivilege	1776	wmic.exe
Token: SeSystemProfilePrivilege	1776	wmic.exe
Token: SeSystemtimePrivilege	1776	wmic.exe
Token: SeProfSingleProcessPrivilege	1776	wmic.exe
Token: SeIncBasePriorityPrivilege	1776	wmic.exe
Token: SeCreatePagefilePrivilege	1776	wmic.exe
Token: SeBackupPrivilege	1776	wmic.exe
Token: SeRestorePrivilege	1776	wmic.exe
Token: SeShutdownPrivilege	1776	wmic.exe
Token: SeDebugPrivilege	1776	wmic.exe
Token: SeSystemEnvironmentPrivilege	1776	wmic.exe
Token: SeRemoteShutdownPrivilege	1776	wmic.exe
Token: SeUndockPrivilege	1776	wmic.exe
Token: SeManageVolumePrivilege	1776	wmic.exe
Token: 33	1776	wmic.exe
Token: 34	1776	wmic.exe
Token: 35	1776	wmic.exe
Token: 36	1776	wmic.exe
Token: SeIncreaseQuotaPrivilege	4900	wmic.exe
Token: SeSecurityPrivilege	4900	wmic.exe
Token: SeTakeOwnershipPrivilege	4900	wmic.exe
Token: SeLoadDriverPrivilege	4900	wmic.exe
Token: SeSystemProfilePrivilege	4900	wmic.exe
Token: SeSystemtimePrivilege	4900	wmic.exe
Token: SeProfSingleProcessPrivilege	4900	wmic.exe
Token: SeIncBasePriorityPrivilege	4900	wmic.exe
Token: SeCreatePagefilePrivilege	4900	wmic.exe
Token: SeBackupPrivilege	4900	wmic.exe
Token: SeRestorePrivilege	4900	wmic.exe
Token: SeShutdownPrivilege	4900	wmic.exe
Token: SeDebugPrivilege	4900	wmic.exe
Token: SeSystemEnvironmentPrivilege	4900	wmic.exe
Token: SeRemoteShutdownPrivilege	4900	wmic.exe
Token: SeUndockPrivilege	4900	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 3520	1868	Malinovka Install.exe	82
PID 1868 wrote to memory of 3520	1868	Malinovka Install.exe	82
PID 1868 wrote to memory of 848	1868	Malinovka Install.exe	83
PID 1868 wrote to memory of 848	1868	Malinovka Install.exe	83
PID 3520 wrote to memory of 4252	3520	Umbral3.exe	85
PID 3520 wrote to memory of 4252	3520	Umbral3.exe	85
PID 3520 wrote to memory of 3648	3520	Umbral3.exe	87
PID 3520 wrote to memory of 3648	3520	Umbral3.exe	87
PID 3520 wrote to memory of 4704	3520	Umbral3.exe	89
PID 3520 wrote to memory of 4704	3520	Umbral3.exe	89
PID 3520 wrote to memory of 4988	3520	Umbral3.exe	91
PID 3520 wrote to memory of 4988	3520	Umbral3.exe	91
PID 3520 wrote to memory of 1656	3520	Umbral3.exe	93
PID 3520 wrote to memory of 1656	3520	Umbral3.exe	93
PID 3520 wrote to memory of 1776	3520	Umbral3.exe	95
PID 3520 wrote to memory of 1776	3520	Umbral3.exe	95
PID 3520 wrote to memory of 4900	3520	Umbral3.exe	98
PID 3520 wrote to memory of 4900	3520	Umbral3.exe	98
PID 3520 wrote to memory of 4088	3520	Umbral3.exe	100
PID 3520 wrote to memory of 4088	3520	Umbral3.exe	100
PID 3520 wrote to memory of 5036	3520	Umbral3.exe	102
PID 3520 wrote to memory of 5036	3520	Umbral3.exe	102
PID 3520 wrote to memory of 2736	3520	Umbral3.exe	104
PID 3520 wrote to memory of 2736	3520	Umbral3.exe	104
PID 848 wrote to memory of 4504	848	XClient.exe	106
PID 848 wrote to memory of 4504	848	XClient.exe	106
PID 848 wrote to memory of 2532	848	XClient.exe	108
PID 848 wrote to memory of 2532	848	XClient.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4252	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Malinovka Install.exe
"C:\Users\Admin\AppData\Local\Temp\Malinovka Install.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Local\Temp\Umbral3.exe
  "C:\Users\Admin\AppData\Local\Temp\Umbral3.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral3.exe"
    3⤵
    - Views/modifies file attributes
    PID:4252
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral3.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3648
- - 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:4704
- - 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:4988
- - 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:1656
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1776
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4900
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:4088
- - 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:5036
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:2736
- C:\Users\Admin\AppData\Local\Temp\XClient.exe
  "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:848
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4504
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
bb059cd5ec81445db881376f4c2d7eeb

SHA1
d36313ed7b12132106252009b2658a1c70fb1e87

SHA256
987d374beac33bedb33df17b602f2fdf5cdf81fa14f11dbbe606506efb8a74ad

SHA512
ce6f532e13d8353b3ad64be2d55df9600bb700dd8a4e1f8f16b1d52c416f97c7a71927a2165d74771ce7bb81dcdc33a7cf39d7f6b4dee5b9b36af22668262409

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

Filesize
64B

MD5
c6aae9fb57ebd2ae201e8d174d820246

SHA1
58140d968de47bcf9c78938988a99369bbdb1f51

SHA256
bbc39a8da61fd8ec0d64e708e1ab4986f7fdf580581e464629bf040c595f7c08

SHA512
5959f7dab47bc4bad03635f497ca48f2e0740375528afddfc50964e54983e56df5970b25b8d8b28f1aa73cd6233fac83c634a311e759c58a365570e4862c3e3c

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

Filesize
944B

MD5
96ff1ee586a153b4e7ce8661cabc0442

SHA1
140d4ff1840cb40601489f3826954386af612136

SHA256
0673399a2f37c89d455e8658c4d30b9248bff1ea47ba40957588e2bc862976e8

SHA512
3404370d0edb4ead4874ce68525dc9bcbc6008003682646e331bf43a06a24a467ace7eff5be701a822d74c7e065d0f6a0ba0e3d6bc505d34d0189373dcacb569

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
1a58f982c18490e622e00d4eb75ace5a

SHA1
60c30527b74659ecf09089a5a7c02a1df9a71b65

SHA256
4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d

SHA512
ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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\Temp\Umbral3.exe

Filesize
229KB

MD5
7a902c87a60986f18a6b097712299256

SHA1
2c01906a39faa9d27a41e0d3cd84e92410b9c483

SHA256
e4e4f9045dc3683a2a69b9c7625f2ff46ed241ff64b47660a039dbc9d34cb0d5

SHA512
c8b75b3f0a77d1f84167af3c431e186802ccd5271fc4a361142e0209541de37f5d584d487bf5ea4b4d921e6e3846267fdea9f65cbd71001331bfea08de5425b6

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

Filesize
80KB

MD5
3fc932775533f1bcea180de679a902dd

SHA1
3f393d02af4653e34bf5526ec5b6f8d6e4df65e8

SHA256
09a15daeebc228706f36a7659284ef673ea72e7a71700a2f73f4f1409486dd6a

SHA512
f59d35a6fe5517a5b9a1ec9a07899eef9f48745710196f1824cc79823994d6fba7975da457ee06ec6215f56860680dc0c07412268c2b1c725c4c66611a75a764

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_txeuagp0.vol.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/848-24-0x0000000000E00000-0x0000000000E1A000-memory.dmp

Filesize
104KB

Download
memory/848-27-0x00007FFD8D7C0000-0x00007FFD8E281000-memory.dmp

Filesize
10.8MB

Download
memory/848-104-0x000000001BA10000-0x000000001BA20000-memory.dmp

Filesize
64KB

Download
memory/1868-23-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3520-54-0x000001F4F1000000-0x000001F4F101E000-memory.dmp

Filesize
120KB

Download
memory/3520-53-0x000001F4F1020000-0x000001F4F1070000-memory.dmp

Filesize
320KB

Download
memory/3520-52-0x000001F4F1980000-0x000001F4F19F6000-memory.dmp

Filesize
472KB

Download
memory/3520-90-0x000001F4F1A00000-0x000001F4F1A0A000-memory.dmp

Filesize
40KB

Download
memory/3520-91-0x000001F4F1A30000-0x000001F4F1A42000-memory.dmp

Filesize
72KB

Download
memory/3520-26-0x000001F4F0E90000-0x000001F4F0EA0000-memory.dmp

Filesize
64KB

Download
memory/3520-25-0x00007FFD8D7C0000-0x00007FFD8E281000-memory.dmp

Filesize
10.8MB

Download
memory/3520-20-0x000001F4EF240000-0x000001F4EF280000-memory.dmp

Filesize
256KB

Download
memory/3648-28-0x000001E1B08E0000-0x000001E1B0902000-memory.dmp

Filesize
136KB

Download