asyncrat | a575e60cb9bfe0ce25567779ffd942cea73bb023b84a38d26fb930ab2bc64d7a

Analysis

max time kernel
150s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 19:50

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General

Target

BlueEagleXPR.exe
Size

4.3MB
MD5

c4902cfc4c2ea6d2b3e4f385ae3cd1f6
SHA1

b9848b5eb85018801d690ddc7b264b07e89c52f4
SHA256

a575e60cb9bfe0ce25567779ffd942cea73bb023b84a38d26fb930ab2bc64d7a
SHA512

e642d4a68127b6a135c4bb0048a7208bf5e75e7f0a0bb2247b65238f78845f4c9c44ddc2729ba95486c5e88f7cfcd9359940b1d058cf33025621220d749523cf
SSDEEP

98304:rsT1KpK3AEv85NABo6bOeRU7ecKRQlJ1v0E+E78Gvzu1:Q4KwEvKQSeRU7eYLOEIGy

Score

10^/10

asyncrat github discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

GitHub

127.0.0.1:650

127.0.0.1:10000

domain13.ddns.net:650

domain13.ddns.net:10000

Mutex

{76B6B781-3613-4A22-AE20-A66B9C12BB55}

Attributes

delay
1
install
true
install_file
svchost.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x00080000000164b1-11.dat	family_asyncrat

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\{C64E3C0C-3884-436D-9A18-C6801081CDF2}.lnk	explorer.exe

Executes dropped EXE 13 IoCs

pid	Process
2836	1.36newl.exe
2700	DCR.exe
2844	1.36newl.exe
3012	DCR.exe
580	1.36newl.exe
588	DCR.exe
2176	1.36newl.exe
2272	DCR.exe
1928	1.36newl.exe
1128	DCR.exe
1768	DCR.exe
2232	svchost.exe
1956	svchost.exe

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 1 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	1.36newl.exe

Delays execution with timeout.exe 2 IoCs

defense_evasion

pid	Process
2208	timeout.exe
792	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2452	schtasks.exe
668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2700	DCR.exe
2700	DCR.exe
2700	DCR.exe
588	DCR.exe
588	DCR.exe
588	DCR.exe
588	DCR.exe
588	DCR.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2836	1.36newl.exe
2836	1.36newl.exe
2836	1.36newl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2700	DCR.exe
Token: SeDebugPrivilege	588	DCR.exe
Token: SeDebugPrivilege	2232	svchost.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2836	2684	BlueEagleXPR.exe	30
PID 2684 wrote to memory of 2836	2684	BlueEagleXPR.exe	30
PID 2684 wrote to memory of 2836	2684	BlueEagleXPR.exe	30
PID 2684 wrote to memory of 2836	2684	BlueEagleXPR.exe	30
PID 2684 wrote to memory of 2700	2684	BlueEagleXPR.exe	31
PID 2684 wrote to memory of 2700	2684	BlueEagleXPR.exe	31
PID 2684 wrote to memory of 2700	2684	BlueEagleXPR.exe	31
PID 2836 wrote to memory of 2776	2836	1.36newl.exe	32
PID 2836 wrote to memory of 2776	2836	1.36newl.exe	32
PID 2836 wrote to memory of 2776	2836	1.36newl.exe	32
PID 2836 wrote to memory of 2776	2836	1.36newl.exe	32
PID 2684 wrote to memory of 2904	2684	BlueEagleXPR.exe	33
PID 2684 wrote to memory of 2904	2684	BlueEagleXPR.exe	33
PID 2684 wrote to memory of 2904	2684	BlueEagleXPR.exe	33
PID 2904 wrote to memory of 2844	2904	BlueEagleXPR.exe	34
PID 2904 wrote to memory of 2844	2904	BlueEagleXPR.exe	34
PID 2904 wrote to memory of 2844	2904	BlueEagleXPR.exe	34
PID 2904 wrote to memory of 2844	2904	BlueEagleXPR.exe	34
PID 2904 wrote to memory of 3012	2904	BlueEagleXPR.exe	35
PID 2904 wrote to memory of 3012	2904	BlueEagleXPR.exe	35
PID 2904 wrote to memory of 3012	2904	BlueEagleXPR.exe	35
PID 2904 wrote to memory of 844	2904	BlueEagleXPR.exe	36
PID 2904 wrote to memory of 844	2904	BlueEagleXPR.exe	36
PID 2904 wrote to memory of 844	2904	BlueEagleXPR.exe	36
PID 844 wrote to memory of 580	844	BlueEagleXPR.exe	37
PID 844 wrote to memory of 580	844	BlueEagleXPR.exe	37
PID 844 wrote to memory of 580	844	BlueEagleXPR.exe	37
PID 844 wrote to memory of 580	844	BlueEagleXPR.exe	37
PID 844 wrote to memory of 588	844	BlueEagleXPR.exe	38
PID 844 wrote to memory of 588	844	BlueEagleXPR.exe	38
PID 844 wrote to memory of 588	844	BlueEagleXPR.exe	38
PID 844 wrote to memory of 2228	844	BlueEagleXPR.exe	39
PID 844 wrote to memory of 2228	844	BlueEagleXPR.exe	39
PID 844 wrote to memory of 2228	844	BlueEagleXPR.exe	39
PID 2228 wrote to memory of 2176	2228	BlueEagleXPR.exe	40
PID 2228 wrote to memory of 2176	2228	BlueEagleXPR.exe	40
PID 2228 wrote to memory of 2176	2228	BlueEagleXPR.exe	40
PID 2228 wrote to memory of 2176	2228	BlueEagleXPR.exe	40
PID 2228 wrote to memory of 2272	2228	BlueEagleXPR.exe	41
PID 2228 wrote to memory of 2272	2228	BlueEagleXPR.exe	41
PID 2228 wrote to memory of 2272	2228	BlueEagleXPR.exe	41
PID 2228 wrote to memory of 2408	2228	BlueEagleXPR.exe	42
PID 2228 wrote to memory of 2408	2228	BlueEagleXPR.exe	42
PID 2228 wrote to memory of 2408	2228	BlueEagleXPR.exe	42
PID 2408 wrote to memory of 1928	2408	BlueEagleXPR.exe	43
PID 2408 wrote to memory of 1928	2408	BlueEagleXPR.exe	43
PID 2408 wrote to memory of 1928	2408	BlueEagleXPR.exe	43
PID 2408 wrote to memory of 1928	2408	BlueEagleXPR.exe	43
PID 2408 wrote to memory of 1128	2408	BlueEagleXPR.exe	44
PID 2408 wrote to memory of 1128	2408	BlueEagleXPR.exe	44
PID 2408 wrote to memory of 1128	2408	BlueEagleXPR.exe	44
PID 2408 wrote to memory of 1232	2408	BlueEagleXPR.exe	45
PID 2408 wrote to memory of 1232	2408	BlueEagleXPR.exe	45
PID 2408 wrote to memory of 1232	2408	BlueEagleXPR.exe	45
PID 1232 wrote to memory of 1768	1232	BlueEagleXPR.exe	46
PID 1232 wrote to memory of 1768	1232	BlueEagleXPR.exe	46
PID 1232 wrote to memory of 1768	1232	BlueEagleXPR.exe	46
PID 1232 wrote to memory of 2676	1232	BlueEagleXPR.exe	47
PID 1232 wrote to memory of 2676	1232	BlueEagleXPR.exe	47
PID 1232 wrote to memory of 2676	1232	BlueEagleXPR.exe	47
PID 2700 wrote to memory of 1984	2700	DCR.exe	48
PID 2700 wrote to memory of 1984	2700	DCR.exe	48
PID 2700 wrote to memory of 1984	2700	DCR.exe	48
PID 2700 wrote to memory of 2016	2700	DCR.exe	50

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
"C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\1.36newl.exe
  "C:\Users\Admin\AppData\Local\Temp\1.36newl.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    - Drops startup file
    PID:2776
- C:\Users\Admin\AppData\Local\Temp\DCR.exe
  "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
    3⤵
    PID:1984
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2452
- - C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp6C89.tmp.bat""
    3⤵
    PID:2016
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:792
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:2232
- C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
  "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Users\Admin\AppData\Local\Temp\1.36newl.exe
    "C:\Users\Admin\AppData\Local\Temp\1.36newl.exe"
    3⤵
    - Executes dropped EXE
    PID:2844
- - C:\Users\Admin\AppData\Local\Temp\DCR.exe
    "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
    3⤵
    - Executes dropped EXE
    PID:3012
- - C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
    "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:844
  - - C:\Users\Admin\AppData\Local\Temp\1.36newl.exe
      "C:\Users\Admin\AppData\Local\Temp\1.36newl.exe"
      4⤵
      Executes dropped EXE
      PID:580
  - - C:\Users\Admin\AppData\Local\Temp\DCR.exe
      "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:588
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
        5⤵
        
        PID:2476
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:668
    - - C:\Windows\system32\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp737B.tmp.bat""
        5⤵
        
        PID:1360
      - C:\Windows\system32\timeout.exe
        
        timeout 3
        6⤵
        Delays execution with timeout.exe
        
        PID:2208
      - C:\Users\Admin\AppData\Roaming\svchost.exe
        
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        6⤵
        Executes dropped EXE
        
        PID:1956
  - - C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
      "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2228
    - - C:\Users\Admin\AppData\Local\Temp\1.36newl.exe
        
        "C:\Users\Admin\AppData\Local\Temp\1.36newl.exe"
        5⤵
        Executes dropped EXE
        
        PID:2176
    - - C:\Users\Admin\AppData\Local\Temp\DCR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
        5⤵
        Executes dropped EXE
        
        PID:2272
    - - C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2408
      - C:\Users\Admin\AppData\Local\Temp\1.36newl.exe
        
        "C:\Users\Admin\AppData\Local\Temp\1.36newl.exe"
        6⤵
        Executes dropped EXE
        
        PID:1928
      - C:\Users\Admin\AppData\Local\Temp\DCR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
        6⤵
        Executes dropped EXE
        
        PID:1128
      - C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1232
        
        C:\Users\Admin\AppData\Local\Temp\DCR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\DCR.exe"
        7⤵
        Executes dropped EXE
        
        PID:1768
        
        C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\BlueEagleXPR.exe"
        7⤵
        
        PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1.36newl.exe

Filesize
503KB

MD5
7e3067bbd7db5801445cdf5d15e8fb2c

SHA1
b69f8ab65fa54dd6adc25294700770219c69a01f

SHA256
aae8ec779c084ba4911f8a8ad409425bd8a12ec3b1300b703dbe6d04c0a6c835

SHA512
5fa05f8ac301f5cc2386e0efc07e1e18a5f9a8d0179474ba0a7129d6d99d444ba2caba5e7b2253ee472d93c4fbdc1dff66ab4d6dc43720b55e455bf2e7dcfa11

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

Filesize
47KB

MD5
960ad3c9b4538926120d15cdd742a34d

SHA1
b3f306e088b3ec4557459f74297dad948b134f7c

SHA256
f564d475e501971f31b6c135313d6f7a01ec67b7ee8940426de0bf71bf6ec1b8

SHA512
636af1ea3c266558959a2b3231c20c33d86fb628d4671771d53a6d5c4f52f3cd322b8f3462eaedb940c257f8b4fb870b3ba11ae7ce8e92d71884baa33955b4c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6C89.tmp.bat

Filesize
151B

MD5
6d7920a36d06d9c7bf9094da9aea51d7

SHA1
4a32f0fd8557e853b2414e406b8689e5c5da765c

SHA256
b8b571f384201f442e198d0e8ca97a8e0f0b2b5e3a1d40ccfcead8038887d04c

SHA512
2bfac2fd2d9168b5ae10adc4e832d19d0d0f6a304f983ffec14d6b32930a05e46ad4f4cfa464704d239da003caa2068c33f67a6aa25a79ee4bb06f40be30c1ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp737B.tmp.bat

Filesize
151B

MD5
0be039371fef3d7e78c62dbe6fe4b00c

SHA1
c0c803764fed5e44e35288bb5319a808e0cf77c4

SHA256
3e540e13fbbc5077dc098b274401c376f0c2b04cb86c2cf0558053f9ac0c4412

SHA512
66c8bd5c9f5ba938d58f5eb3b8f5b8e62c5231b5a01c03abdbf20b21df98e0612507d6f6a0c7b86869864bf9e329aa5c96e6c447a245c45d9a3bb1c5d9fd1132

Download Submit
memory/2232-83-0x0000000000330000-0x0000000000342000-memory.dmp

Filesize
72KB

Download
memory/2684-0-0x000007FEF52B3000-0x000007FEF52B4000-memory.dmp

Filesize
4KB

Download
memory/2684-1-0x0000000000ED0000-0x000000000131C000-memory.dmp

Filesize
4.3MB

Download
memory/2700-67-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

Filesize
9.9MB

Download
memory/2700-35-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

Filesize
9.9MB

Download
memory/2700-12-0x0000000000900000-0x0000000000912000-memory.dmp

Filesize
72KB

Download
memory/2776-15-0x0000000002030000-0x00000000020A0000-memory.dmp

Filesize
448KB

Download
memory/2776-22-0x0000000002030000-0x00000000020A0000-memory.dmp

Filesize
448KB

Download
memory/2776-27-0x0000000002030000-0x00000000020A0000-memory.dmp

Filesize
448KB

Download
memory/2776-28-0x0000000002030000-0x00000000020A0000-memory.dmp

Filesize
448KB

Download
memory/2776-23-0x0000000002030000-0x00000000020A0000-memory.dmp

Filesize
448KB

Download
memory/2776-14-0x0000000000070000-0x0000000000072000-memory.dmp

Filesize
8KB

Download