asyncrat | 2bd89e81853bbc112cfeb62b676beb0cfc741262bf9e226e15768062e6a14d6a

Analysis

max time kernel
21s
max time network
25s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 08:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Stealer.exe
Size

10.2MB
MD5

41d910d583bb0000139e4ba501b85ed3
SHA1

3f6385ebe1cfb5a9498b5a24eb18e356b4e89731
SHA256

2bd89e81853bbc112cfeb62b676beb0cfc741262bf9e226e15768062e6a14d6a
SHA512

1580ba5c349e73e38fe899e7498a644bba4c62e95e6c740d330308692916d2f9375af43d560d9041d1b38a5b22e105f687a9f811b7310e396d3590abd1b00fad
SSDEEP

196608:HB7XMxQfsWshAvneXaRxoWpVvjQeuRzTB1WcWrRfVuKcFOrRV5/oRKG9zh:h78xQkWshmNoWTvHQTBatoOrJA0GZh

Score

10^/10

asyncrat xworm fucked up by codex17 execution persistence pyinstaller rat trojan

Malware Config

Extracted

Family

asyncrat

Botnet

FUCKED UP BY CODEX17

105.101.179.171:38672

Attributes

delay
1
install
true
install_file
Anti Spyware core service.exe
install_folder
%AppData%

aes.plain

Extracted

Family

xworm

hall-shine.gl.at.ply.gg:37734

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7581317328:AAHSOYBRXtxAC4eNoBHxtvJwUlAqgnnRcoc/sendMessage?chat_id=6229207397

Signatures

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

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000019d61-127.dat	family_xworm
behavioral1/memory/2296-129-0x0000000000FD0000-0x0000000000FEA000-memory.dmp	family_xworm

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000500000001a499-114.dat	family_asyncrat

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2908	powershell.exe
1672	powershell.exe

Executes dropped EXE 4 IoCs

pid	Process
2852	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1464	Anti Spyware core service.exe
2296	Microsoft update.exe

Loads dropped DLL 10 IoCs

pid	Process
1668	Stealer.exe
2884	Process not Found
2852	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe
1100	CODEX17-NUKER.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft update = "C:\\Windows\\System32\\Microsoft update.exe"	Stealer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Anti Spyware core service = "C:\\Windows\\System32\\Anti Spyware core service.exe"	Stealer.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
4	ip-api.com

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\System32\Anti Spyware core service.exe	Stealer.exe
File opened for modification	C:\Windows\System32\Anti Spyware core service.exe	Stealer.exe
File created	C:\Windows\System32\Microsoft update.exe	Stealer.exe
File opened for modification	C:\Windows\System32\Microsoft update.exe	Stealer.exe

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x00090000000167e3-7.dat	pyinstaller

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1912	timeout.exe

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
2236	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1668	Stealer.exe
1668	Stealer.exe
1668	Stealer.exe
2908	powershell.exe
1672	powershell.exe
1464	Anti Spyware core service.exe
1464	Anti Spyware core service.exe
1464	Anti Spyware core service.exe
1464	Anti Spyware core service.exe
1464	Anti Spyware core service.exe
1464	Anti Spyware core service.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	Stealer.exe
Token: SeDebugPrivilege	2908	powershell.exe
Token: SeDebugPrivilege	1672	powershell.exe
Token: SeDebugPrivilege	2296	Microsoft update.exe
Token: SeDebugPrivilege	1464	Anti Spyware core service.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2852	1668	Stealer.exe	32
PID 1668 wrote to memory of 2852	1668	Stealer.exe	32
PID 1668 wrote to memory of 2852	1668	Stealer.exe	32
PID 1668 wrote to memory of 2908	1668	Stealer.exe	34
PID 1668 wrote to memory of 2908	1668	Stealer.exe	34
PID 1668 wrote to memory of 2908	1668	Stealer.exe	34
PID 2852 wrote to memory of 1100	2852	CODEX17-NUKER.exe	36
PID 2852 wrote to memory of 1100	2852	CODEX17-NUKER.exe	36
PID 2852 wrote to memory of 1100	2852	CODEX17-NUKER.exe	36
PID 1668 wrote to memory of 1464	1668	Stealer.exe	37
PID 1668 wrote to memory of 1464	1668	Stealer.exe	37
PID 1668 wrote to memory of 1464	1668	Stealer.exe	37
PID 1668 wrote to memory of 1672	1668	Stealer.exe	38
PID 1668 wrote to memory of 1672	1668	Stealer.exe	38
PID 1668 wrote to memory of 1672	1668	Stealer.exe	38
PID 1668 wrote to memory of 2296	1668	Stealer.exe	40
PID 1668 wrote to memory of 2296	1668	Stealer.exe	40
PID 1668 wrote to memory of 2296	1668	Stealer.exe	40

C:\Users\Admin\AppData\Local\Temp\Stealer.exe
"C:\Users\Admin\AppData\Local\Temp\Stealer.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\CODEX17-NUKER.exe
  "C:\Users\Admin\AppData\Local\Temp\CODEX17-NUKER.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Users\Admin\AppData\Local\Temp\CODEX17-NUKER.exe
    "C:\Users\Admin\AppData\Local\Temp\CODEX17-NUKER.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\Anti Spyware core service.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2908
- C:\Windows\System32\Anti Spyware core service.exe
  "C:\Windows\System32\Anti Spyware core service.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1464
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Anti Spyware core service" /tr '"C:\Users\Admin\AppData\Roaming\Anti Spyware core service.exe"' & exit
    3⤵
    PID:3068
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "Anti Spyware core service" /tr '"C:\Users\Admin\AppData\Roaming\Anti Spyware core service.exe"'
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2236
- - C:\Windows\System32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp388E.tmp.bat""
    3⤵
    PID:2000
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:1912
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\Microsoft update.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1672
- C:\Windows\System32\Microsoft update.exe
  "C:\Windows\System32\Microsoft update.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2296

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CODEX17-NUKER.exe

Filesize
10.3MB

MD5
5dac10034e3063e8bab9e3b24b109fcf

SHA1
9f8a6bdcc784078c3fc78dc8adda294a03f17aaa

SHA256
da6066f78de8a5eb976f62abdf2f0080514a187868ddda11354ea98e058fb6de

SHA512
79d75de884c5e7bdeaab8ca830551a4eaabc8f7587c60caf4c2ff9f1a49dd74de0b4546f212aaf9eb92c890981151c2d5c0bba5e278a3899d19066d28dfa2ba7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\api-ms-win-core-file-l1-2-0.dll

Filesize
21KB

MD5
1c58526d681efe507deb8f1935c75487

SHA1
0e6d328faf3563f2aae029bc5f2272fb7a742672

SHA256
ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

SHA512
8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\api-ms-win-core-file-l2-1-0.dll

Filesize
18KB

MD5
bfffa7117fd9b1622c66d949bac3f1d7

SHA1
402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

SHA256
1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

SHA512
b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\api-ms-win-core-localization-l1-2-0.dll

Filesize
21KB

MD5
724223109e49cb01d61d63a8be926b8f

SHA1
072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

SHA256
4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

SHA512
19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
21KB

MD5
517eb9e2cb671ae49f99173d7f7ce43f

SHA1
4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

SHA256
57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

SHA512
492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\api-ms-win-core-timezone-l1-1-0.dll

Filesize
21KB

MD5
d12403ee11359259ba2b0706e5e5111c

SHA1
03cc7827a30fd1dee38665c0cc993b4b533ac138

SHA256
f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

SHA512
9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\python312.dll

Filesize
6.6MB

MD5
166cc2f997cba5fc011820e6b46e8ea7

SHA1
d6179213afea084f02566ea190202c752286ca1f

SHA256
c045b57348c21f5f810bae60654ae39490846b487378e917595f1f95438f9546

SHA512
49d9d4df3d7ef5737e947a56e48505a2212e05fdbcd7b83d689639728639b7fd3be39506d7cfcb7563576ebee879fd305370fdb203909ed9b522b894dd87aacb

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI28522\ucrtbase.dll

Filesize
992KB

MD5
0e0bac3d1dcc1833eae4e3e4cf83c4ef

SHA1
4189f4459c54e69c6d3155a82524bda7549a75a6

SHA256
8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

SHA512
a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp388E.tmp.bat

Filesize
169B

MD5
4ce664b14ab41762316158df57603c6b

SHA1
98c92736dd4262b53f66eb8aa80a4deb40cb123c

SHA256
006d5889724b523847f566b260c140bbfbf0673b9805f4692ca2266bf9133c1a

SHA512
5dd7f22c6e052a19367264ceef58e4c3785baf2221b1956fe8e1aff019179495650b2b6db2c6ca510bbfdc4b9de7edb237aaf9fd02fa2fe9a65096256dce8a4d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
405061b5a6b64fbd61e513c700bffc34

SHA1
3b45af98361275b55fb0c8f35b5bb3c41d35f9ce

SHA256
770bd43a1185a69700fa61ec1041926569c6a8be2e7d00ea3914642033a6c7ee

SHA512
c91efd37604812e5d217647a8e21286f994998959a881eb1ffe6a5b5ad9134ef93797b686d0241dee2bed2f132418f882e7d6be5a506c3a622a317e04e484b93

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HGX5PPMZ30P6UBFCE9U7.temp

Filesize
7KB

MD5
e430b26ddabd2726363f313f7181184a

SHA1
10c2451b1419b08c671178ba5b889f29fb58cbae

SHA256
40761e8c053a3c19d2889c68ce31a54c3b974aae00f843ff35eed5cf497bb154

SHA512
c52319ff6ca13d634be7d0f68aa183d441fb9189549ece7468c4a8d0c5bda552a2e19b241b2e9fa34cea12551e77fe700cbc53029d4fa48ada4e30748f102805

Download Submit
C:\Windows\System32\Anti Spyware core service.exe

Filesize
63KB

MD5
f5e9921f069554980e87a5654378cbd0

SHA1
021624ca621c42e17e8f66eba350a3f2ed7a9825

SHA256
04e6bf407e90b0b89caf860456cbfe10aedbc608e7e2f56648e96af98c034750

SHA512
2454aa98187bdb5c0078aa3d0e505e2f1cfbc88d88c1335585a58d6f3b0a8a909edb3a2b394201e39fce1ce0899fd1c95c91a80926bd799e90dae3517f7f1d14

Download Submit
C:\Windows\System32\Microsoft update.exe

Filesize
76KB

MD5
6d92420f3a9227f3fc2d8040c15712c2

SHA1
650fa88e357d0f4602134f1c9b884eaf60f82b98

SHA256
08e4a086bf5a4f773638a2bbc5da8963c5b6bf650a94a1ebd7a36513508b41bb

SHA512
0bff5ac7920848a3eb5b0cf6d66a0ba1393aa48be96b1d76dda99cd45724880835ae6dc4e44fc257a0101fc0ded308925aaf9c697d34d74e10bf98f334714341

Download Submit
memory/1464-115-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/1668-2-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-108-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-1-0x0000000001100000-0x0000000001B3C000-memory.dmp

Filesize
10.2MB

Download
memory/1668-9-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

Filesize
4KB

Download
memory/1668-198-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-0-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

Filesize
4KB

Download
memory/1672-121-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/1672-122-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

Filesize
32KB

Download
memory/2296-129-0x0000000000FD0000-0x0000000000FEA000-memory.dmp

Filesize
104KB

Download
memory/2908-94-0x0000000002360000-0x0000000002368000-memory.dmp

Filesize
32KB

Download
memory/2908-93-0x000000001B390000-0x000000001B672000-memory.dmp

Filesize
2.9MB

Download