asyncrat | e8f6dc455cea42a08feb8fcf5a34928864d537ec5ec905576cee58c9fabd6a5f

Analysis

max time kernel
117s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 10:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Payment-Order24560274for8380USD.exe
Size

392KB
MD5

eac2017286abefbd21b28e7f9fcab248
SHA1

02f90ba750bf3801e286ecfbf3467110f8b2ef94
SHA256

e8f6dc455cea42a08feb8fcf5a34928864d537ec5ec905576cee58c9fabd6a5f
SHA512

fa0a14b1bfce0fac1bbb1488f319dd864b9a94e784a6a637907d3bd31dddb80043de71ee582def13e72b9a4c2490c1738fa8d676feb3bc519d26bc75936db48b
SSDEEP

12288:OaoO2yd67Jss86xlfLfC7hgooOK6YQMhUZC9WpVyi:OnV8gooOeQtrl

Score

10^/10

asyncrat xworm default discovery evasion execution rat spyware stealer trojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

91.223.3.156:7707

91.223.3.156:8808

Mutex

TcNC0kSWrpnZ

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Extracted

Family

xworm

Version

3.1

212.23.222.198:7000

Mutex

Ihzd02cPcnJ09l8B

Attributes

install_file
USB.exe

aes.plain

Signatures

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

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2652-98-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2652-96-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2652-95-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2652-92-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2652-90-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order24560274for8380USD.exe

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Start PowerShell.

execution

PowerShell

T1059.001

pid	Process
2984	powershell.exe
2860	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
920	izevsu.exe

Loads dropped DLL 6 IoCs

pid	Process
2984	powershell.exe
1784	WerFault.exe
1784	WerFault.exe
1784	WerFault.exe
1784	WerFault.exe
1784	WerFault.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

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Payment-Order24560274for8380USD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order24560274for8380USD.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 920 set thread context of 2652	920	izevsu.exe	39

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	installutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2860	powershell.exe
2984	powershell.exe
2984	powershell.exe
2984	powershell.exe
2688	regasm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	2688	regasm.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	2652	installutil.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2860	2672	Payment-Order24560274for8380USD.exe	30
PID 2672 wrote to memory of 2860	2672	Payment-Order24560274for8380USD.exe	30
PID 2672 wrote to memory of 2860	2672	Payment-Order24560274for8380USD.exe	30
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2688	2672	Payment-Order24560274for8380USD.exe	32
PID 2672 wrote to memory of 2760	2672	Payment-Order24560274for8380USD.exe	33
PID 2672 wrote to memory of 2760	2672	Payment-Order24560274for8380USD.exe	33
PID 2672 wrote to memory of 2760	2672	Payment-Order24560274for8380USD.exe	33
PID 2688 wrote to memory of 3052	2688	regasm.exe	35
PID 2688 wrote to memory of 3052	2688	regasm.exe	35
PID 2688 wrote to memory of 3052	2688	regasm.exe	35
PID 2688 wrote to memory of 3052	2688	regasm.exe	35
PID 3052 wrote to memory of 2984	3052	cmd.exe	37
PID 3052 wrote to memory of 2984	3052	cmd.exe	37
PID 3052 wrote to memory of 2984	3052	cmd.exe	37
PID 3052 wrote to memory of 2984	3052	cmd.exe	37
PID 2984 wrote to memory of 920	2984	powershell.exe	38
PID 2984 wrote to memory of 920	2984	powershell.exe	38
PID 2984 wrote to memory of 920	2984	powershell.exe	38
PID 2984 wrote to memory of 920	2984	powershell.exe	38
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 2652	920	izevsu.exe	39
PID 920 wrote to memory of 1784	920	izevsu.exe	40
PID 920 wrote to memory of 1784	920	izevsu.exe	40
PID 920 wrote to memory of 1784	920	izevsu.exe	40

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order24560274for8380USD.exe

C:\Users\Admin\AppData\Local\Temp\Payment-Order24560274for8380USD.exe
"C:\Users\Admin\AppData\Local\Temp\Payment-Order24560274for8380USD.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2672
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment-Order24560274for8380USD.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2860
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\izevsu.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3052
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\izevsu.exe"'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2984
    - - C:\Users\Admin\AppData\Local\Temp\izevsu.exe
        
        "C:\Users\Admin\AppData\Local\Temp\izevsu.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:920
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2652
      - C:\Windows\system32\WerFault.exe
        
        C:\Windows\system32\WerFault.exe -u -p 920 -s 624
        6⤵
        Loads dropped DLL
        
        PID:1784
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2672 -s 776
  2⤵
  PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CabE9B5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarF942.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

Filesize
380KB

MD5
dba8a00401ba0799432567652b35d92d

SHA1
1e4ef79e14c88ca0b019e11ca761684271d0ad5d

SHA256
504515e3e813c8c49895773d464e372ad44c052ad626e1f128a3db05f017f051

SHA512
f426d455f07dac29fc6acc03daacf8ffd785bd09907f0964c82bb7f236af3d2f9fe9cef95644f3a91432311a001203b48befc4d2a984fac2584729425b3d3d2f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\MA2YU23M85XVRIA3HVRL.temp

Filesize
7KB

MD5
62efe488e36e7de855f10e0a72cc640e

SHA1
c7e345deb6025a38b15e242dd87eee184b0f813e

SHA256
d5cd3015381aa1c6f6c85918f8dc49d65003f8096e70b66d97600aca33208214

SHA512
b663f935210b1ab493fb0765c9917c4f3a7c581ced64c531e4e3ab7a89cbf9d2cd398819fe91fafe7a0fedfcca3ef3973151b4db42ebccb690f7a6b65771c907

Download Submit
memory/920-84-0x00000000012D0000-0x0000000001332000-memory.dmp

Filesize
392KB

Download
memory/920-85-0x0000000000950000-0x00000000009B0000-memory.dmp

Filesize
384KB

Download
memory/2652-105-0x00000000060E0000-0x000000000616C000-memory.dmp

Filesize
560KB

Download
memory/2652-96-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-90-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-92-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-94-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-95-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-88-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2652-106-0x0000000006290000-0x00000000062F4000-memory.dmp

Filesize
400KB

Download
memory/2652-104-0x00000000056C0000-0x0000000005742000-memory.dmp

Filesize
520KB

Download
memory/2652-98-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2672-20-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

Filesize
9.9MB

Download
memory/2672-0-0x000007FEF56A3000-0x000007FEF56A4000-memory.dmp

Filesize
4KB

Download
memory/2672-3-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

Filesize
9.9MB

Download
memory/2672-2-0x0000000000460000-0x00000000004C4000-memory.dmp

Filesize
400KB

Download
memory/2672-1-0x00000000009F0000-0x0000000000A54000-memory.dmp

Filesize
400KB

Download
memory/2688-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-58-0x0000000000870000-0x000000000087A000-memory.dmp

Filesize
40KB

Download
memory/2688-57-0x0000000000D40000-0x0000000000D80000-memory.dmp

Filesize
256KB

Download
memory/2688-37-0x0000000005C30000-0x0000000005CCC000-memory.dmp

Filesize
624KB

Download
memory/2688-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-59-0x0000000005EC0000-0x0000000005F22000-memory.dmp

Filesize
392KB

Download
memory/2688-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2688-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-18-0x000000001B570000-0x000000001B852000-memory.dmp

Filesize
2.9MB

Download
memory/2860-19-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download