asyncrat | 09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 13:41

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General

Target

2aaea866166221511fbd56b52f0cef64.exe
Size

45KB
MD5

2aaea866166221511fbd56b52f0cef64
SHA1

58fb45e8808e6b523ba942088a45a49e780e6f2f
SHA256

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a
SHA512

de4029ade64782692fd4fae84f60d74587b73220f180d4b2b362c0670d980f2a04ecd1ecca0afafb8fad43f3fb11eafdade3002bba1686137a55a74fe50fc379
SSDEEP

768:NuLN+TwQhclWUlNzWmo2qDMKjPGaG6PIyzjbFgX3iN8F0S6d+Aj6gBDZOx:NuLN+Twip2lKTkDy3bCXSNS2Rj62dOx

Score

10^/10

asyncrat xmrig zgrat default execution miner persistence rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

94.228.162.82:6606

94.228.162.82:7707

94.228.162.82:8808

Mutex

nZrC1RL7rHnC

Attributes

delay
3
install
true
install_file
appBroker.exe
install_folder
%AppData%

aes.plain

Signatures

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

Detect ZGRat V1 2 IoCs

resource	yara_rule
behavioral2/memory/1416-17-0x0000000006250000-0x00000000062B2000-memory.dmp	family_zgrat_v1
behavioral2/memory/1416-51-0x0000000006920000-0x00000000069BC000-memory.dmp	family_zgrat_v1

XMRig Miner payload 2 IoCs

miner

resource	yara_rule
behavioral2/files/0x0009000000023391-46.dat	family_xmrig
behavioral2/files/0x0009000000023391-46.dat	xmrig

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0006000000022ac0-10.dat	family_asyncrat

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2aaea866166221511fbd56b52f0cef64.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	appBroker.exe

Executes dropped EXE 3 IoCs

pid	Process
1416	appBroker.exe
1448	ttzxpx.exe
4512	xmrig.exe

Reads user/profile data of web browsers 2 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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XMRig = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XMRig"	ttzxpx.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Start PowerShell.

execution

PowerShell

T1059.001

pid	Process
4712	powershell.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2776	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1516	timeout.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
3712	2aaea866166221511fbd56b52f0cef64.exe
4712	powershell.exe
4712	powershell.exe
1416	appBroker.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3712	2aaea866166221511fbd56b52f0cef64.exe
Token: SeDebugPrivilege	1416	appBroker.exe
Token: SeDebugPrivilege	4712	powershell.exe
Token: SeLockMemoryPrivilege	4512	xmrig.exe
Token: SeLockMemoryPrivilege	4512	xmrig.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4512	xmrig.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 3680	3712	2aaea866166221511fbd56b52f0cef64.exe	88
PID 3712 wrote to memory of 3680	3712	2aaea866166221511fbd56b52f0cef64.exe	88
PID 3712 wrote to memory of 3680	3712	2aaea866166221511fbd56b52f0cef64.exe	88
PID 3712 wrote to memory of 836	3712	2aaea866166221511fbd56b52f0cef64.exe	90
PID 3712 wrote to memory of 836	3712	2aaea866166221511fbd56b52f0cef64.exe	90
PID 3712 wrote to memory of 836	3712	2aaea866166221511fbd56b52f0cef64.exe	90
PID 3680 wrote to memory of 2776	3680	cmd.exe	92
PID 3680 wrote to memory of 2776	3680	cmd.exe	92
PID 3680 wrote to memory of 2776	3680	cmd.exe	92
PID 836 wrote to memory of 1516	836	cmd.exe	93
PID 836 wrote to memory of 1516	836	cmd.exe	93
PID 836 wrote to memory of 1516	836	cmd.exe	93
PID 836 wrote to memory of 1416	836	cmd.exe	94
PID 836 wrote to memory of 1416	836	cmd.exe	94
PID 836 wrote to memory of 1416	836	cmd.exe	94
PID 1416 wrote to memory of 3988	1416	appBroker.exe	96
PID 1416 wrote to memory of 3988	1416	appBroker.exe	96
PID 1416 wrote to memory of 3988	1416	appBroker.exe	96
PID 3988 wrote to memory of 4712	3988	cmd.exe	98
PID 3988 wrote to memory of 4712	3988	cmd.exe	98
PID 3988 wrote to memory of 4712	3988	cmd.exe	98
PID 4712 wrote to memory of 1448	4712	powershell.exe	99
PID 4712 wrote to memory of 1448	4712	powershell.exe	99
PID 1448 wrote to memory of 2168	1448	ttzxpx.exe	101
PID 1448 wrote to memory of 2168	1448	ttzxpx.exe	101
PID 2168 wrote to memory of 2192	2168	cmd.exe	102
PID 2168 wrote to memory of 2192	2168	cmd.exe	102
PID 2192 wrote to memory of 4512	2192	cmd.exe	103
PID 2192 wrote to memory of 4512	2192	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\2aaea866166221511fbd56b52f0cef64.exe
"C:\Users\Admin\AppData\Local\Temp\2aaea866166221511fbd56b52f0cef64.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "appBroker" /tr '"C:\Users\Admin\AppData\Roaming\appBroker.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3680
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "appBroker" /tr '"C:\Users\Admin\AppData\Roaming\appBroker.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2776
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5E3D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:836
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1516
- - C:\Users\Admin\AppData\Roaming\appBroker.exe
    "C:\Users\Admin\AppData\Roaming\appBroker.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1416
  - - 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\ttzxpx.exe"' & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3988
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\ttzxpx.exe"'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:4712
      - C:\Users\Admin\AppData\Local\Temp\ttzxpx.exe
        
        "C:\Users\Admin\AppData\Local\Temp\ttzxpx.exe"
        6⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:1448
        
        C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c cmd.exe /C "C:\Users\Admin\AppData\Local\Temp\xmrig.exe"
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:2168
        
        C:\Windows\system32\cmd.exe
        
        cmd.exe /C "C:\Users\Admin\AppData\Local\Temp\xmrig.exe"
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:2192
        
        C:\Users\Admin\AppData\Local\Temp\xmrig.exe
        
        C:\Users\Admin\AppData\Local\Temp\xmrig.exe
        9⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of FindShellTrayWindow
        
        PID:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fkrazybq.gps.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5E3D.tmp.bat

Filesize
153B

MD5
4ea1585c81d65b0c3db0231f5d725b0f

SHA1
ad77fb8edf0a4962fe9e11dbdb7cf57e2750610b

SHA256
a33f32436b280cf0b8796c4f667572bfe798e492cc7b01ee74f0e0d895e0821d

SHA512
48b5c09a748ff2d4871903ceb5104b402e4f55059b2f5d6fd1bc97b63bf95282596303b13c983b274e1c75d26a90c9cd873a2f17810e375160f19d201cb1d0fb

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

Filesize
897KB

MD5
35c5c01f331c3cceb82c6ace1c98c0af

SHA1
93057d4839801cd9129e001db49d51670fe03f82

SHA256
3e36c74c4fa98e8b91cbcdb2bd4a58a9fc4719b118de6cb16c2b14ff9206ad6e

SHA512
04103379e9bb7e3b0b67320e2092500afe0f774cbca83d38190a548bbff28f514c305239223805ecb3cce416ef2d322a8eed28063ccbf2964b325b2b49a30653

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

Filesize
1.4MB

MD5
3866b487c4ed4865655a2e60b899bb7f

SHA1
72dc92d5b1ddafb3e5b35dc4212b58e838ffc491

SHA256
c55a5e0c9f4acbcbfd11886aef71ec4ccf66ed0197710e5f82af1ff8e043207d

SHA512
1d1d61b0ba9293c716af2ce292f34357a7bb4dd3e3e78f4a04ab4a04419f7bc247926bb8e49ad322b02a2cf2389aeff33155bc878699468fcf51b0e10f0ac8ba

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

Filesize
45KB

MD5
2aaea866166221511fbd56b52f0cef64

SHA1
58fb45e8808e6b523ba942088a45a49e780e6f2f

SHA256
09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a

SHA512
de4029ade64782692fd4fae84f60d74587b73220f180d4b2b362c0670d980f2a04ecd1ecca0afafb8fad43f3fb11eafdade3002bba1686137a55a74fe50fc379

Download Submit
memory/1416-14-0x00000000056E0000-0x0000000005C84000-memory.dmp

Filesize
5.6MB

Download
memory/1416-13-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/1416-52-0x00000000068E0000-0x00000000068E8000-memory.dmp

Filesize
32KB

Download
memory/1416-15-0x0000000005130000-0x0000000005196000-memory.dmp

Filesize
408KB

Download
memory/1416-16-0x00000000062D0000-0x0000000006346000-memory.dmp

Filesize
472KB

Download
memory/1416-17-0x0000000006250000-0x00000000062B2000-memory.dmp

Filesize
392KB

Download
memory/1416-18-0x0000000006380000-0x000000000639E000-memory.dmp

Filesize
120KB

Download
memory/1416-53-0x00000000069C0000-0x0000000006A00000-memory.dmp

Filesize
256KB

Download
memory/1416-54-0x0000000006900000-0x000000000690A000-memory.dmp

Filesize
40KB

Download
memory/1416-51-0x0000000006920000-0x00000000069BC000-memory.dmp

Filesize
624KB

Download
memory/1416-49-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/1448-48-0x00007FF61BBB0000-0x00007FF61BC97000-memory.dmp

Filesize
924KB

Download
memory/3712-2-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/3712-8-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/3712-0-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/3712-3-0x0000000005270000-0x000000000530C000-memory.dmp

Filesize
624KB

Download
memory/3712-1-0x0000000000840000-0x0000000000852000-memory.dmp

Filesize
72KB

Download
memory/4712-37-0x0000000006DF0000-0x0000000006E0A000-memory.dmp

Filesize
104KB

Download
memory/4712-38-0x0000000006E40000-0x0000000006E62000-memory.dmp

Filesize
136KB

Download
memory/4712-36-0x0000000007AF0000-0x0000000007B86000-memory.dmp

Filesize
600KB

Download
memory/4712-33-0x00000000062F0000-0x0000000006644000-memory.dmp

Filesize
3.3MB

Download
memory/4712-35-0x00000000069B0000-0x00000000069FC000-memory.dmp

Filesize
304KB

Download
memory/4712-23-0x0000000005B60000-0x0000000005BC6000-memory.dmp

Filesize
408KB

Download
memory/4712-22-0x0000000005AC0000-0x0000000005AE2000-memory.dmp

Filesize
136KB

Download
memory/4712-21-0x0000000005C50000-0x0000000006278000-memory.dmp

Filesize
6.2MB

Download
memory/4712-20-0x0000000002F70000-0x0000000002FA6000-memory.dmp

Filesize
216KB

Download
memory/4712-34-0x0000000006910000-0x000000000692E000-memory.dmp

Filesize
120KB

Download