asyncrat | 09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a

General

Target

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
Size

45KB
MD5

2aaea866166221511fbd56b52f0cef64
SHA1

58fb45e8808e6b523ba942088a45a49e780e6f2f
SHA256

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a
SHA512

de4029ade64782692fd4fae84f60d74587b73220f180d4b2b362c0670d980f2a04ecd1ecca0afafb8fad43f3fb11eafdade3002bba1686137a55a74fe50fc379
SSDEEP

768:NuLN+TwQhclWUlNzWmo2qDMKjPGaG6PIyzjbFgX3iN8F0S6d+Aj6gBDZOx:NuLN+Twip2lKTkDy3bCXSNS2Rj62dOx

Score

10^/10

asyncrat zgrat default execution rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

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

Processes:

resource	yara_rule
behavioral2/memory/3232-17-0x00000000061E0000-0x0000000006242000-memory.dmp	family_zgrat_v1
behavioral2/memory/3232-47-0x0000000006950000-0x00000000069EC000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/files/0x000a0000000233d8-11.dat	family_asyncrat

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

Processes:

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exeappBroker.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	appBroker.exe

Executes dropped EXE 2 IoCs

Processes:

appBroker.exeierbov.exe

pid	Process
3232	appBroker.exe
908	ierbov.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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Start PowerShell.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
4080	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

Processes:

schtasks.exe

pid	Process
2064	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

Processes:

timeout.exe

pid	Process
4956	timeout.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exepowershell.exeappBroker.exe

pid	Process
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
4080	powershell.exe
4080	powershell.exe
3232	appBroker.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exeappBroker.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
Token: SeDebugPrivilege	3232	appBroker.exe
Token: SeDebugPrivilege	4080	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.execmd.execmd.exeappBroker.execmd.exepowershell.exe

description	pid	Process	procid_target
PID 4996 wrote to memory of 216	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	84
PID 4996 wrote to memory of 216	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	84
PID 4996 wrote to memory of 216	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	84
PID 4996 wrote to memory of 1320	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	86
PID 4996 wrote to memory of 1320	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	86
PID 4996 wrote to memory of 1320	4996	09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe	86
PID 216 wrote to memory of 2064	216	cmd.exe	88
PID 216 wrote to memory of 2064	216	cmd.exe	88
PID 216 wrote to memory of 2064	216	cmd.exe	88
PID 1320 wrote to memory of 4956	1320	cmd.exe	89
PID 1320 wrote to memory of 4956	1320	cmd.exe	89
PID 1320 wrote to memory of 4956	1320	cmd.exe	89
PID 1320 wrote to memory of 3232	1320	cmd.exe	90
PID 1320 wrote to memory of 3232	1320	cmd.exe	90
PID 1320 wrote to memory of 3232	1320	cmd.exe	90
PID 3232 wrote to memory of 1220	3232	appBroker.exe	92
PID 3232 wrote to memory of 1220	3232	appBroker.exe	92
PID 3232 wrote to memory of 1220	3232	appBroker.exe	92
PID 1220 wrote to memory of 4080	1220	cmd.exe	94
PID 1220 wrote to memory of 4080	1220	cmd.exe	94
PID 1220 wrote to memory of 4080	1220	cmd.exe	94
PID 4080 wrote to memory of 908	4080	powershell.exe	95
PID 4080 wrote to memory of 908	4080	powershell.exe	95

C:\Users\Admin\AppData\Local\Temp\09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe
"C:\Users\Admin\AppData\Local\Temp\09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4996
- 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:216
- - 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:2064
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp566D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1320
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4956
- - 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:3232
  - - 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\ierbov.exe"' & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1220
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\ierbov.exe"'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:4080
      - C:\Users\Admin\AppData\Local\Temp\ierbov.exe
        
        "C:\Users\Admin\AppData\Local\Temp\ierbov.exe"
        6⤵
        Executes dropped EXE
        
        PID:908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r1pvqk5k.r3s.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
897KB

MD5
35c5c01f331c3cceb82c6ace1c98c0af

SHA1
93057d4839801cd9129e001db49d51670fe03f82

SHA256
3e36c74c4fa98e8b91cbcdb2bd4a58a9fc4719b118de6cb16c2b14ff9206ad6e

SHA512
04103379e9bb7e3b0b67320e2092500afe0f774cbca83d38190a548bbff28f514c305239223805ecb3cce416ef2d322a8eed28063ccbf2964b325b2b49a30653

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp566D.tmp.bat

Filesize
153B

MD5
8755577e0fa26b9e8552f96a11b52189

SHA1
f8280fb816e134b71b3e9407ca13fdb591de8511

SHA256
f095da4922cb8700c5f30553170615e8e488004968f48bbbefebca07cfacb6d4

SHA512
77e308f451795a6873f574953f18a18e3b254154733ed3e58abcd5e0064d69bcd2fff8775615fe696a9e5fc1d8613e76b7e397d9f87bc6502cf2df1ce3ca5dad

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

Filesize
45KB

MD5
2aaea866166221511fbd56b52f0cef64

SHA1
58fb45e8808e6b523ba942088a45a49e780e6f2f

SHA256
09f0f7270df05c3dae84defc043db7b411a5f8610ea93a2c85dd98c7a927c47a

SHA512
de4029ade64782692fd4fae84f60d74587b73220f180d4b2b362c0670d980f2a04ecd1ecca0afafb8fad43f3fb11eafdade3002bba1686137a55a74fe50fc379

Download Submit
memory/908-46-0x00007FF768FE0000-0x00007FF7690C7000-memory.dmp

Filesize
924KB

Download
memory/908-43-0x00007FF768FE0000-0x00007FF7690C7000-memory.dmp

Filesize
924KB

Download
memory/3232-50-0x0000000006780000-0x000000000678A000-memory.dmp

Filesize
40KB

Download
memory/3232-13-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3232-14-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/3232-15-0x00000000050B0000-0x0000000005116000-memory.dmp

Filesize
408KB

Download
memory/3232-16-0x0000000006260000-0x00000000062D6000-memory.dmp

Filesize
472KB

Download
memory/3232-17-0x00000000061E0000-0x0000000006242000-memory.dmp

Filesize
392KB

Download
memory/3232-18-0x0000000006340000-0x000000000635E000-memory.dmp

Filesize
120KB

Download
memory/3232-49-0x00000000069F0000-0x0000000006A30000-memory.dmp

Filesize
256KB

Download
memory/3232-48-0x0000000006760000-0x0000000006768000-memory.dmp

Filesize
32KB

Download
memory/3232-47-0x0000000006950000-0x00000000069EC000-memory.dmp

Filesize
624KB

Download
memory/3232-44-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-34-0x00000000063D0000-0x00000000063EE000-memory.dmp

Filesize
120KB

Download
memory/4080-22-0x0000000005610000-0x0000000005632000-memory.dmp

Filesize
136KB

Download
memory/4080-20-0x0000000002AB0000-0x0000000002AE6000-memory.dmp

Filesize
216KB

Download
memory/4080-35-0x0000000006420000-0x000000000646C000-memory.dmp

Filesize
304KB

Download
memory/4080-36-0x00000000075C0000-0x0000000007656000-memory.dmp

Filesize
600KB

Download
memory/4080-38-0x0000000006930000-0x0000000006952000-memory.dmp

Filesize
136KB

Download
memory/4080-37-0x00000000068C0000-0x00000000068DA000-memory.dmp

Filesize
104KB

Download
memory/4080-21-0x0000000005640000-0x0000000005C68000-memory.dmp

Filesize
6.2MB

Download
memory/4080-33-0x0000000005E00000-0x0000000006154000-memory.dmp

Filesize
3.3MB

Download
memory/4080-23-0x0000000005D20000-0x0000000005D86000-memory.dmp

Filesize
408KB

Download
memory/4996-8-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4996-3-0x00000000059C0000-0x0000000005A5C000-memory.dmp

Filesize
624KB

Download
memory/4996-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/4996-2-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4996-1-0x0000000000F90000-0x0000000000FA2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads