asyncrat | 1cc12f5a9abb33e222373fa27b4ef631abfbd9343a168b194ef8c958bee79abc

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20221111-es
resource tags

arch:x64arch:x86image:win10v2004-20221111-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
01/01/2023, 04:29

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General

Target

Steam Checker By abbadon/config/System/FrameWork.bat
Size

520B
MD5

e2bbc4167314dc0fc9acba48f2c94b74
SHA1

a6b4a5502f2078353769d9bd22ce632ff9035067
SHA256

20cf5b36516ca5251a79e6dcd08f6f8e6f3696ef24959829bc5a387950b7d178
SHA512

4cc2946ce8ce192b3e7bf1ea51a3305e7656c229ca1c5795c4f3762df0005d7b3db2a4e676c8b9ecbf9d770b6c379a9c15a9f3fa994ca829faea30dd64fece9d

Score

10^/10

asyncrat c rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

185.81.157.169:2023

Mutex

7G6ZCBCA-NJ11-YS93-65bg-CX918E7238D5

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral32/memory/2664-158-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 3 IoCs

pid	Process
1248	MicrosoftEdgeUpdates.exe
3636	SystemUpdates.exe
2520	SystemUpdates.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3636 set thread context of 2664	3636	SystemUpdates.exe	99
PID 2520 set thread context of 2576	2520	SystemUpdates.exe	101

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4440	schtasks.exe
4452	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1248	MicrosoftEdgeUpdates.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
656	powershell.exe
656	powershell.exe
5108	powershell.exe
5108	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	656	powershell.exe
Token: SeDebugPrivilege	5108	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 4440	992	cmd.exe	82
PID 992 wrote to memory of 4440	992	cmd.exe	82
PID 992 wrote to memory of 4452	992	cmd.exe	83
PID 992 wrote to memory of 4452	992	cmd.exe	83
PID 992 wrote to memory of 3360	992	cmd.exe	84
PID 992 wrote to memory of 3360	992	cmd.exe	84
PID 992 wrote to memory of 4188	992	cmd.exe	85
PID 992 wrote to memory of 4188	992	cmd.exe	85
PID 992 wrote to memory of 656	992	cmd.exe	86
PID 992 wrote to memory of 656	992	cmd.exe	86
PID 992 wrote to memory of 5108	992	cmd.exe	87
PID 992 wrote to memory of 5108	992	cmd.exe	87
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 3636 wrote to memory of 2664	3636	SystemUpdates.exe	99
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101
PID 2520 wrote to memory of 2576	2520	SystemUpdates.exe	101

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3360	attrib.exe
4188	attrib.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Steam Checker By abbadon\config\System\FrameWork.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:992
- C:\Windows\system32\schtasks.exe
  schtasks /create /sc minute /mo 1 /tn "Microsoft\MicrosoftEdgeUpdates\EdgeUpdate" /tr "C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe" /RL HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:4440
- C:\Windows\system32\schtasks.exe
  schtasks /create /sc minute /mo 1 /tn "Microsoft\SystemUpdates\SysUpdate" /tr "C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe" /RL HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:4452
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates
  2⤵
  - Views/modifies file attributes
  PID:3360
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\SystemUpdates
  2⤵
  - Views/modifies file attributes
  PID:4188
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -WindowStyle Hidden -ExecutionPolicy RemoteSigned -File CopyTo.PS1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:656
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -WindowStyle Hidden -ExecutionPolicy RemoteSigned -File C2.PS1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5108

C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
PID:1248

C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2664

C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Hidden Files and Directories

T1158

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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\CLR_v4.0_32\UsageLogs\SystemUpdates.exe.log

Filesize
1KB

MD5
bfff6869253ff041b2b0be465df8bad1

SHA1
d87fbcb54700714919232c4236fa4bb6df589797

SHA256
889e9627d5df84d62c212051b683081e2852a5f6f8de17bf046ccf91b8b2d84d

SHA512
f4bb23a3805b65b825f1a1a954b807fed0c5f8b9f830e045efb3fe86200bccb52a4c41fe954ddf3c653afd5a31c1ead2785e67d39799e0bcad2a52a94b895a29

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

Filesize
944B

MD5
2ad33642f863ae14ee53bc6853ee330e

SHA1
ca81cc7d8c33a46ebe97bc1d3db55e41a813029e

SHA256
17c7b3c895766071a0d87318ec4134a9032ed113b46d3ba75889819a61a9cc19

SHA512
52c59a7bde3751e07da53f3942c15cc3e19a4bf1929fbc28ae568ed96531852747b4f724e01438e159c4c98bf2d846db205c48e32f4b5984e9fddeb936eb8aa9

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe

Filesize
15KB

MD5
492bd942c673806c4dc7d076d44a06de

SHA1
ace44cc6d1f875aa1b58c2c0c51901f9c11b0221

SHA256
30e04b25281b27e83652be61a8a61821730e30be65a95452c3b93a7a17333f00

SHA512
8a328d28055337629823795dcc96adf1fce2dba6079ec29472b81f8b89917d6b312efc0ec566732effcbfa95ddf96848dead444900096ed71da590dd3861477f

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe

Filesize
15KB

MD5
492bd942c673806c4dc7d076d44a06de

SHA1
ace44cc6d1f875aa1b58c2c0c51901f9c11b0221

SHA256
30e04b25281b27e83652be61a8a61821730e30be65a95452c3b93a7a17333f00

SHA512
8a328d28055337629823795dcc96adf1fce2dba6079ec29472b81f8b89917d6b312efc0ec566732effcbfa95ddf96848dead444900096ed71da590dd3861477f

Download Submit
C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe

Filesize
242KB

MD5
640d55589c839016931890b47305d638

SHA1
bf5062f9c16a3966abe3e7dbb083f539f1b38126

SHA256
6dba74aedcdd6b0f36d2b7ea79b9c9f40fe669ac41ec0560bc67d4039279f689

SHA512
da1142c340124a682f88790d06434c42e9df0ce9ebbe21920235db9de76800728f47a96aa489bf6673b426d16172664dcb4af1e1c134623d0a6eebe20fb7baaa

Download Submit
C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe

Filesize
242KB

MD5
640d55589c839016931890b47305d638

SHA1
bf5062f9c16a3966abe3e7dbb083f539f1b38126

SHA256
6dba74aedcdd6b0f36d2b7ea79b9c9f40fe669ac41ec0560bc67d4039279f689

SHA512
da1142c340124a682f88790d06434c42e9df0ce9ebbe21920235db9de76800728f47a96aa489bf6673b426d16172664dcb4af1e1c134623d0a6eebe20fb7baaa

Download Submit
C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe

Filesize
242KB

MD5
640d55589c839016931890b47305d638

SHA1
bf5062f9c16a3966abe3e7dbb083f539f1b38126

SHA256
6dba74aedcdd6b0f36d2b7ea79b9c9f40fe669ac41ec0560bc67d4039279f689

SHA512
da1142c340124a682f88790d06434c42e9df0ce9ebbe21920235db9de76800728f47a96aa489bf6673b426d16172664dcb4af1e1c134623d0a6eebe20fb7baaa

Download Submit
memory/656-139-0x000001BBF4DF0000-0x000001BBF4E12000-memory.dmp

Filesize
136KB

Download
memory/656-141-0x000001BBF6710000-0x000001BBF6812000-memory.dmp

Filesize
1.0MB

Download
memory/656-142-0x00007FFF4DB70000-0x00007FFF4E631000-memory.dmp

Filesize
10.8MB

Download
memory/656-140-0x00007FFF4DB70000-0x00007FFF4E631000-memory.dmp

Filesize
10.8MB

Download
memory/656-138-0x000001BBF4DB0000-0x000001BBF4DC0000-memory.dmp

Filesize
64KB

Download
memory/656-137-0x000001BBF5BC0000-0x000001BBF5C42000-memory.dmp

Filesize
520KB

Download
memory/1248-153-0x0000000005040000-0x00000000055E4000-memory.dmp

Filesize
5.6MB

Download
memory/1248-154-0x0000000004A90000-0x0000000004B22000-memory.dmp

Filesize
584KB

Download
memory/1248-155-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/1248-151-0x0000000000030000-0x000000000003A000-memory.dmp

Filesize
40KB

Download
memory/2664-158-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-159-0x00000000056C0000-0x00000000057C2000-memory.dmp

Filesize
1.0MB

Download
memory/3636-152-0x0000000000F50000-0x0000000000F92000-memory.dmp

Filesize
264KB

Download
memory/3636-156-0x0000000006100000-0x000000000619C000-memory.dmp

Filesize
624KB

Download
memory/5108-146-0x00007FFF4DB70000-0x00007FFF4E631000-memory.dmp

Filesize
10.8MB

Download