asyncrat | 5639a8c405d3ef3c0d64057e755a3a324ea6aed05909f09697dd60cf98e447b4

General

Target

Tax Invoice.exe
Size

239KB
MD5

f3e095480b743b91e227a56dc90f961f
SHA1

c173a87c984a20bf5e3751351e144a62de4ae269
SHA256

762c259cf0068e583cc70d8839c65bb87401de2f926f8306c66d83e7d7cfda8e
SHA512

d7fb57e80d720221aeb1674d7aa967e3c87b334f13c76c26e81d22cc0877d4921deffe37670093de83ebcbf488cdf654eadd12ce9cbd97517068621ec3a15de0

Score

10^/10

asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6A

C2

soft.tjsosda.com:1989

sure.spdns.de:1989

hurricane.rapiddns.ru:1989

Mutex

admin2214

Attributes

delay
5
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3188-134-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Tax Invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ggBin = "C:\\Users\\Admin\\AppData\\Local\\ggBinz\\ggBinzbxc.hta"	Tax Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Tax Invoice.exe

description pid process target process

PID 1724 set thread context of 3188 1724 Tax Invoice.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Tax Invoice.exeInstallUtil.exe

pid process

1724 Tax Invoice.exe
1724 Tax Invoice.exe
1724 Tax Invoice.exe
1724 Tax Invoice.exe
1724 Tax Invoice.exe
3188 InstallUtil.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Tax Invoice.exe

pid process

1724 Tax Invoice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Tax Invoice.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1724 Tax Invoice.exe
Token: SeDebugPrivilege 3188 InstallUtil.exe

description	pid	process	target process
PID 1724 set thread context of 3188	1724	Tax Invoice.exe	InstallUtil.exe

pid	process
1724	Tax Invoice.exe
1724	Tax Invoice.exe
1724	Tax Invoice.exe
1724	Tax Invoice.exe
1724	Tax Invoice.exe
3188	InstallUtil.exe

pid	process
1724	Tax Invoice.exe

description	pid	process
Token: SeDebugPrivilege	1724	Tax Invoice.exe
Token: SeDebugPrivilege	3188	InstallUtil.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Tax Invoice.exe

description	pid	process	target process
PID 1724 wrote to memory of 3188	1724	Tax Invoice.exe	InstallUtil.exe
PID 1724 wrote to memory of 3188	1724	Tax Invoice.exe	InstallUtil.exe
PID 1724 wrote to memory of 3188	1724	Tax Invoice.exe	InstallUtil.exe
PID 1724 wrote to memory of 3188	1724	Tax Invoice.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Tax Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Tax Invoice.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\InstallUtil.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1724-130-0x00000000008E0000-0x0000000000920000-memory.dmp

Filesize
256KB

Download
memory/1724-131-0x00000000053A0000-0x0000000005432000-memory.dmp

Filesize
584KB

Download
memory/1724-132-0x0000000005CF0000-0x0000000006294000-memory.dmp

Filesize
5.6MB

Download
memory/3188-133-0x0000000000000000-mapping.dmp

Download
memory/3188-134-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3188-135-0x00000000050D0000-0x0000000005136000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads