asyncrat | 1cc12f5a9abb33e222373fa27b4ef631abfbd9343a168b194ef8c958bee79abc

Analysis

max time kernel
150s
max time network
47s
platform
windows7_x64
resource
win7-20220812-es
resource tags

arch:x64arch:x86image:win7-20220812-eslocale:es-esos:windows7-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 6 IoCs

rat

resource	yara_rule
behavioral31/memory/1956-93-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral31/memory/1956-92-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral31/memory/1956-94-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral31/memory/1956-95-0x000000000040CBAE-mapping.dmp	asyncrat
behavioral31/memory/1956-97-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral31/memory/1956-99-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1056	SystemUpdates.exe
1152	MicrosoftEdgeUpdates.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1056 set thread context of 1956	1056	SystemUpdates.exe	38

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
952	schtasks.exe
1924	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1152	MicrosoftEdgeUpdates.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1000	powershell.exe
1380	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1000	powershell.exe
Token: SeDebugPrivilege	1380	powershell.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 564 wrote to memory of 952	564	cmd.exe	29
PID 564 wrote to memory of 952	564	cmd.exe	29
PID 564 wrote to memory of 952	564	cmd.exe	29
PID 564 wrote to memory of 1924	564	cmd.exe	30
PID 564 wrote to memory of 1924	564	cmd.exe	30
PID 564 wrote to memory of 1924	564	cmd.exe	30
PID 564 wrote to memory of 1720	564	cmd.exe	31
PID 564 wrote to memory of 1720	564	cmd.exe	31
PID 564 wrote to memory of 1720	564	cmd.exe	31
PID 564 wrote to memory of 1920	564	cmd.exe	32
PID 564 wrote to memory of 1920	564	cmd.exe	32
PID 564 wrote to memory of 1920	564	cmd.exe	32
PID 564 wrote to memory of 1000	564	cmd.exe	33
PID 564 wrote to memory of 1000	564	cmd.exe	33
PID 564 wrote to memory of 1000	564	cmd.exe	33
PID 564 wrote to memory of 1380	564	cmd.exe	34
PID 564 wrote to memory of 1380	564	cmd.exe	34
PID 564 wrote to memory of 1380	564	cmd.exe	34
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1056	600	taskeng.exe	36
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 600 wrote to memory of 1152	600	taskeng.exe	37
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38
PID 1056 wrote to memory of 1956	1056	SystemUpdates.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1720	attrib.exe
1920	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Steam Checker By abbadon\config\System\FrameWork.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:564
- 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:952
- 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:1924
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates
  2⤵
  - Views/modifies file attributes
  PID:1720
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\SystemUpdates
  2⤵
  - Views/modifies file attributes
  PID:1920
- 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:1000
- 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:1380

C:\Windows\system32\taskeng.exe
taskeng.exe {5B191E99-7803-4A32-9DCD-B6908A3C2E2F} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:600
- C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
  C:\Users\Admin\AppData\Roaming\SystemUpdates\SystemUpdates.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:1956
- C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe
  C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdates\MicrosoftEdgeUpdates.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  PID:1152

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

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Downloads

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\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
2c93b9455ceb49131233bcf259b5f07b

SHA1
59e32a54e7f5e9b7e47148413cec4753b40b2ec5

SHA256
e969762ddc44158b1aaa03aaa42cea2bffd62dc72b02ad5819d386065ff5593d

SHA512
233a588bffef05dcd8ce7c631b96caa87079a1a3b4b15c38f7a862ba1ca8b9272ad936666ab9cbead91bd1a94d405c6f96c94a89648bd1c5ca354555b4ece3a6

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/1000-64-0x00000000023B4000-0x00000000023B7000-memory.dmp

Filesize
12KB

Download
memory/1000-59-0x000007FEFBB11000-0x000007FEFBB13000-memory.dmp

Filesize
8KB

Download
memory/1000-61-0x000007FEF35E0000-0x000007FEF413D000-memory.dmp

Filesize
11.4MB

Download
memory/1000-63-0x000000001B720000-0x000000001BA1F000-memory.dmp

Filesize
3.0MB

Download
memory/1000-60-0x000007FEF4140000-0x000007FEF4B63000-memory.dmp

Filesize
10.1MB

Download
memory/1000-65-0x00000000023BB000-0x00000000023DA000-memory.dmp

Filesize
124KB

Download
memory/1000-62-0x00000000023B4000-0x00000000023B7000-memory.dmp

Filesize
12KB

Download
memory/1056-87-0x0000000004A75000-0x0000000004A86000-memory.dmp

Filesize
68KB

Download
memory/1056-85-0x0000000000500000-0x000000000050A000-memory.dmp

Filesize
40KB

Download
memory/1056-86-0x0000000000500000-0x000000000050A000-memory.dmp

Filesize
40KB

Download
memory/1056-81-0x00000000008C0000-0x0000000000902000-memory.dmp

Filesize
264KB

Download
memory/1056-88-0x0000000000500000-0x000000000050A000-memory.dmp

Filesize
40KB

Download
memory/1152-82-0x0000000001060000-0x000000000106A000-memory.dmp

Filesize
40KB

Download
memory/1152-83-0x0000000075361000-0x0000000075363000-memory.dmp

Filesize
8KB

Download
memory/1380-69-0x000007FEF37A0000-0x000007FEF41C3000-memory.dmp

Filesize
10.1MB

Download
memory/1380-70-0x000007FEF2C40000-0x000007FEF379D000-memory.dmp

Filesize
11.4MB

Download
memory/1380-73-0x0000000002994000-0x0000000002997000-memory.dmp

Filesize
12KB

Download
memory/1380-72-0x000000001B750000-0x000000001BA4F000-memory.dmp

Filesize
3.0MB

Download
memory/1380-74-0x000000000299B000-0x00000000029BA000-memory.dmp

Filesize
124KB

Download
memory/1380-71-0x0000000002994000-0x0000000002997000-memory.dmp

Filesize
12KB

Download
memory/1956-89-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-90-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-93-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-92-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-94-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-97-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-99-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download