asyncrat | 9618961af8c6db27588c649679634bec7ece8fabd3e48f02f33ac0b837b56d2e

Analysis

max time kernel
149s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15-07-2024 16:14

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General

Target

zvgfd-main/Empyrean Removal Tool.exe
Size

633KB
MD5

0079fab4268be36298a113b2979d70d7
SHA1

804a7ace22a2785ac517b3c5325aea96d96231cf
SHA256

33b4200a51c4ddd324dcfae8edb0a53a4bce3f1ad32ab882a0160af319f66900
SHA512

cd8b523714a074fbd88fc726302b908c192c06f81ac4d1c46effa7fba162ff3289322d3a6f4764709914e081efde1d95a2358f80ea99817de98eade452462fb4
SSDEEP

12288:2MH/IGvJlRawMnSG6BeogdLcuVipiKgn0leY8GbMyj8bExHwVaAWHjsXf:2MfI60wnG6YRdLbVipc0leY8GbMkj

Score

10^/10

asyncrat quasar xworm default slave execution rat spyware trojan

Malware Config

Extracted

Family

xworm

best-bird.gl.at.ply.gg:27196

super-nearest.gl.at.ply.gg:17835

wiz.bounceme.net:6000

aes.plain

Extracted

Family

asyncrat

Botnet

Default

finally-grande.gl.at.ply.gg:25844

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Extracted

Family

quasar

Version

3.1.5

Botnet

Slave

stop-largely.gl.at.ply.gg:27116

Mutex

$Sxr-kl1r656AGsPQksTmi8

Attributes

encryption_key
ql4fQ8TV9ZFP9vRX2myA
install_name
$sxr~Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
$77STARTUP~MSF
subdirectory
$sxr~SubDir

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral7/files/0x00090000000233ff-6.dat	family_xworm
behavioral7/memory/2360-32-0x0000000000370000-0x0000000000388000-memory.dmp	family_xworm
behavioral7/files/0x00070000000234f0-39.dat	family_xworm
behavioral7/memory/3136-49-0x0000000000490000-0x00000000004AA000-memory.dmp	family_xworm
behavioral7/memory/2360-104-0x000000001BE70000-0x000000001BE7E000-memory.dmp	family_xworm

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral7/files/0x000900000002346b-17.dat	family_quasar
behavioral7/memory/5072-51-0x00000000005C0000-0x000000000062C000-memory.dmp	family_quasar

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral7/files/0x00080000000234bc-28.dat	family_asyncrat

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
3616	powershell.exe
2800	powershell.exe
4388	powershell.exe
4800	powershell.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	Part 1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	Part 4.exe
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	Empyrean Removal Tool.exe

Executes dropped EXE 4 IoCs

pid	Process
2360	Part 1.exe
5072	Part 2.exe
3896	Part 3.exe
3136	Part 4.exe

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
18	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3616	powershell.exe
3616	powershell.exe
2800	powershell.exe
2800	powershell.exe
2800	powershell.exe
4388	powershell.exe
4388	powershell.exe
4800	powershell.exe
4800	powershell.exe
2360	Part 1.exe
3136	Part 4.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	Part 1.exe
Token: SeDebugPrivilege	3896	Part 3.exe
Token: SeDebugPrivilege	3136	Part 4.exe
Token: SeDebugPrivilege	5072	Part 2.exe
Token: SeDebugPrivilege	3616	powershell.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	4388	powershell.exe
Token: SeDebugPrivilege	4800	powershell.exe
Token: SeDebugPrivilege	2360	Part 1.exe
Token: SeDebugPrivilege	3136	Part 4.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2360	Part 1.exe
3136	Part 4.exe
5072	Part 2.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2360	2584	Empyrean Removal Tool.exe	84
PID 2584 wrote to memory of 2360	2584	Empyrean Removal Tool.exe	84
PID 2584 wrote to memory of 5072	2584	Empyrean Removal Tool.exe	85
PID 2584 wrote to memory of 5072	2584	Empyrean Removal Tool.exe	85
PID 2584 wrote to memory of 5072	2584	Empyrean Removal Tool.exe	85
PID 2584 wrote to memory of 3896	2584	Empyrean Removal Tool.exe	86
PID 2584 wrote to memory of 3896	2584	Empyrean Removal Tool.exe	86
PID 2584 wrote to memory of 3136	2584	Empyrean Removal Tool.exe	87
PID 2584 wrote to memory of 3136	2584	Empyrean Removal Tool.exe	87
PID 2360 wrote to memory of 3616	2360	Part 1.exe	89
PID 2360 wrote to memory of 3616	2360	Part 1.exe	89
PID 3136 wrote to memory of 2800	3136	Part 4.exe	91
PID 3136 wrote to memory of 2800	3136	Part 4.exe	91
PID 5072 wrote to memory of 2028	5072	Part 2.exe	93
PID 5072 wrote to memory of 2028	5072	Part 2.exe	93
PID 5072 wrote to memory of 2028	5072	Part 2.exe	93
PID 2360 wrote to memory of 4388	2360	Part 1.exe	95
PID 2360 wrote to memory of 4388	2360	Part 1.exe	95
PID 3136 wrote to memory of 4800	3136	Part 4.exe	97
PID 3136 wrote to memory of 4800	3136	Part 4.exe	97

C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool.exe
"C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2360
- - 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\zvgfd-main\Part 1.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3616
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 1.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4388
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "$77STARTUP~MSF" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2028
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3896
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3136
- - 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\zvgfd-main\Part 4.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2800
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 4.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

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
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1eoxyv5p.msc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe

Filesize
67KB

MD5
092a0c6fe885844fd74947e64e7fc11e

SHA1
bfe46f64f36f2e927d862a1a787f146ed2c01219

SHA256
91431cb73305e0f1fdc698907301b6d312a350f667c50765615672e7f10a68f2

SHA512
022589bd17b46e5486971a59b2517956bb15815266e48dc73a7ae9ac9efd42a348af09df471562eb71ffc94ce1e1845d54ca2994663d1496a385bce50ae595f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe

Filesize
409KB

MD5
e10c7425705b2bd3214fa96247ee21c4

SHA1
7603536b97ab6337fa023bafcf80579c2b4059e6

SHA256
021068ac225e479b124c33d9e7582c17fdea6e625b165b79e2c818479d8094e4

SHA512
47e031992d637fef2a67e4fb08d2d82eaba03eba6b80f3e0e0997153acf0d979d0294276c4a10a97daa50130540230865c56191e6fe8df07dbea11c50fa48a2d

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe

Filesize
63KB

MD5
27fe9341167a34f606b800303ac54b1f

SHA1
86373d218b48361bff1c23ddd08b6ab1803a51d0

SHA256
29e13a91af9b0ac77e9b7f8b0c26e5702f46bd8aea0333ca2d191d1d09c70c5d

SHA512
05b83ad544862d9c0cfc2651b2842624cff59fc4f454e0b1a2b36a705b558fad5a834f9f1af9f2626c57f1e3cd9aa400e290eaafb6efeb680422992bcbbde5b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe

Filesize
79KB

MD5
1f1b23752df3d29e7604ba52aea85862

SHA1
bb582c6cf022098b171c4c9c7318a51de29ebcf4

SHA256
4834d31394f19d42e8d2a035b4c3c9c36441340ea19fe766396848ecfb608960

SHA512
d52722ab73bb15d4a5b0033351f98f168192f382677e6d474f6cf506cf8dc2f5e421e45279b6cac0f074857f41a865d87b5d989450bfcb8eba925b7baa12fbde

Download Submit
memory/2360-104-0x000000001BE70000-0x000000001BE7E000-memory.dmp

Filesize
56KB

Download
memory/2360-50-0x00007FF94BD90000-0x00007FF94C851000-memory.dmp

Filesize
10.8MB

Download
memory/2360-108-0x00007FF94BD90000-0x00007FF94C851000-memory.dmp

Filesize
10.8MB

Download
memory/2360-107-0x00007FF94BD90000-0x00007FF94C851000-memory.dmp

Filesize
10.8MB

Download
memory/2360-32-0x0000000000370000-0x0000000000388000-memory.dmp

Filesize
96KB

Download
memory/2360-54-0x00007FF94BD90000-0x00007FF94C851000-memory.dmp

Filesize
10.8MB

Download
memory/2584-0-0x00007FF94BD93000-0x00007FF94BD95000-memory.dmp

Filesize
8KB

Download
memory/2584-1-0x0000000000DC0000-0x0000000000E64000-memory.dmp

Filesize
656KB

Download
memory/3136-49-0x0000000000490000-0x00000000004AA000-memory.dmp

Filesize
104KB

Download
memory/3616-66-0x00000266B7220000-0x00000266B7242000-memory.dmp

Filesize
136KB

Download
memory/3896-47-0x00000000004B0000-0x00000000004C6000-memory.dmp

Filesize
88KB

Download
memory/5072-53-0x0000000004FB0000-0x0000000005042000-memory.dmp

Filesize
584KB

Download
memory/5072-67-0x0000000006150000-0x000000000618C000-memory.dmp

Filesize
240KB

Download
memory/5072-56-0x0000000005C10000-0x0000000005C22000-memory.dmp

Filesize
72KB

Download
memory/5072-55-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/5072-106-0x0000000006610000-0x000000000661A000-memory.dmp

Filesize
40KB

Download
memory/5072-52-0x0000000005560000-0x0000000005B04000-memory.dmp

Filesize
5.6MB

Download
memory/5072-51-0x00000000005C0000-0x000000000062C000-memory.dmp

Filesize
432KB

Download