asyncrat | cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1

Analysis

max time kernel
147s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2022 08:33

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General

Target

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe
Size

312KB
MD5

e807896c804f70ab207bc75bf293d9bb
SHA1

d16108b1bc2d3e936f8f30ae897d38c1a4cdaf1e
SHA256

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1
SHA512

0c7e370978fd1aa12f7f1ae5d3ce0bd52aa03ce2ab81017baef830b4c8d5b47357b37e12db79747d763826f1bec2f907eac5eaf3281a2b3274c0f2e15bd96651
SSDEEP

6144:G9In5IRkTy7AfhhNNB4qjmhKV6oWfoSEtu1itWpNSn40X8tgrsu5:tiRkrJhNNBFjmsh2oSsWpNRLu5

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

mnbvclhg.duckdns.org:8026

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/5016-135-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/5016-136-0x000000000040CBBE-mapping.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0F82A67FB0A54A9688E8A9DBB3679942 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe\""	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe

description	pid	process	target process
PID 5060 set thread context of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe
Token: SeDebugPrivilege	5016	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe

description	pid	process	target process
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe
PID 5060 wrote to memory of 5016	5060	cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe
"C:\Users\Admin\AppData\Local\Temp\cb714a88554c55d7bf123dd8ba8940afe819e9eaaf18fc8a6e2cc404f7af0cd1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/5016-135-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5016-136-0x000000000040CBBE-mapping.dmp

Download
memory/5060-132-0x00000224CF250000-0x00000224CF2A2000-memory.dmp

Filesize
328KB

Download
memory/5060-133-0x00007FF9C6630000-0x00007FF9C70F1000-memory.dmp

Filesize
10.8MB

Download
memory/5060-134-0x00007FF9C6630000-0x00007FF9C70F1000-memory.dmp

Filesize
10.8MB

Download
memory/5060-137-0x00007FF9C6630000-0x00007FF9C70F1000-memory.dmp

Filesize
10.8MB

Download