Malware Analysis Report

2024-09-11 14:48

Sample ID 240611-zxcrcs1gpg
Target AkrienPremiumLoader.exe
SHA256 4a6df15417ae2e2bfe6b0e79253e2761990c8ffed763f43dbad9e73ecd1ed8e6
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4a6df15417ae2e2bfe6b0e79253e2761990c8ffed763f43dbad9e73ecd1ed8e6

Threat Level: Known bad

The file AkrienPremiumLoader.exe was found to be: Known bad.

Malicious Activity Summary

xworm execution rat trojan

Detect Xworm Payload

Xworm

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Executes dropped EXE

Drops startup file

Looks up external IP address via web service

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Enumerates physical storage devices

Detected Akrien Game Cheat

Modifies data under HKEY_USERS

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-11 21:05

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 21:05

Reported

2024-06-11 21:06

Platform

win10v2004-20240426-en

Max time kernel

48s

Max time network

48s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Enumerates physical storage devices

Detected Akrien Game Cheat

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "156" C:\Windows\system32\LogonUI.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A
N/A N/A C:\Windows\system32\LogonUI.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2216 wrote to memory of 3956 N/A C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe C:\Users\Admin\AppData\Local\Temp\svchost.exe
PID 2216 wrote to memory of 3956 N/A C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe C:\Users\Admin\AppData\Local\Temp\svchost.exe
PID 2216 wrote to memory of 4532 N/A C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe
PID 2216 wrote to memory of 4532 N/A C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe
PID 3956 wrote to memory of 3384 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 3384 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 404 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 404 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3956 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\svchost.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe

"C:\Users\Admin\AppData\Local\Temp\AkrienPremiumLoader.exe"

C:\Users\Admin\AppData\Local\Temp\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\svchost.exe"

C:\Users\Admin\AppData\Local\Temp\Loader.exe

"C:\Users\Admin\AppData\Local\Temp\Loader.exe"

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\svchost.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'

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\Roaming\svchost.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa394c055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 akrien.wtf udp
US 172.67.187.188:80 akrien.wtf tcp
US 172.67.187.188:443 akrien.wtf tcp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 188.187.67.172.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 x2.c.lencr.org udp
BE 104.90.25.32:80 x2.c.lencr.org tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 32.25.90.104.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 19.ip.gl.ply.gg udp
US 147.185.221.19:26909 19.ip.gl.ply.gg tcp
US 8.8.8.8:53 19.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 104.208.16.89:443 tcp
US 8.8.8.8:53 udp

Files

C:\Users\Admin\AppData\Local\Temp\svchost.exe

MD5 c7828304c1c6d941e4c02c1112fc11e8
SHA1 0b1b9d4dba6df2c0a4d5d6dc2d26f96c71eab203
SHA256 7be67a91c4c835bc3aa8eb83b56bc01237c8422c74cba584c74ec312af844da4
SHA512 8dbfb6fdcce553146d6e7b834cbdc8417b064b2b046fd67f624d38de5cf9b627e65870fe584ca84e30bc5c9134a9389c0501f8f3dc590093f8c39aef6ee61fb5

memory/3956-16-0x00007FF8829A3000-0x00007FF8829A5000-memory.dmp

memory/3956-17-0x0000000000AF0000-0x0000000000B00000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Loader.exe

MD5 830511d481d3b0d9e73f8475159ebee3
SHA1 b1e8c1ff729bee0b8b25030ad93c8076ae455912
SHA256 11ff80946d298ed531925658f63fd09dfb3a9d6c4a36cee57bbe569b9e378be4
SHA512 36286bebd361d66dc7213dad9d09b218a98a3cf756d22962c5992ed67b86099c9865a3f7c2b5b240ffee87ec9c273454314f08df51410f0f916c38209ab4d199

memory/4532-23-0x00007FF8A1A30000-0x00007FF8A1A32000-memory.dmp

memory/4532-24-0x00007FF8A1A40000-0x00007FF8A1A42000-memory.dmp

memory/4532-26-0x0000000140000000-0x0000000141131000-memory.dmp

memory/3384-43-0x0000029BC2A30000-0x0000029BC2A52000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_domwfgp0.wyf.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

MD5 22310ad6749d8cc38284aa616efcd100
SHA1 440ef4a0a53bfa7c83fe84326a1dff4326dcb515
SHA256 55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf
SHA512 2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

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

MD5 d8cb3e9459807e35f02130fad3f9860d
SHA1 5af7f32cb8a30e850892b15e9164030a041f4bd6
SHA256 2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68
SHA512 045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

memory/3956-88-0x00007FF8829A3000-0x00007FF8829A5000-memory.dmp