asyncrat | 449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98

Analysis

max time kernel
121s
max time network
148s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
31-07-2024 17:23

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General

Target

setup.exe
Size

1.9MB
MD5

4e875a3ff28c0ef04fac6d93452183f9
SHA1

752ba98fa8471cc6c269bf9263a0335ab1c570d4
SHA256

449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98
SHA512

ae90d5a955260ab2b0b2dd80a3015ffc36a9756ccb5793a5887ceadc2b1fd289cde84131414c2afd37c16b1e315bc0bdee80c1d80c502e8e94c031f8f5c09d0c
SSDEEP

49152:qViscIkQonWfm+uHgSa5sfjFkbSxahKG4VhtPLaRc:qZNm+uHgSa5sfjFkexahvN

Score

10^/10

asyncrat 2-iconicos-diam discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

2-ICONICOS-DIAM

proyectodos307.casacam.net:8011

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 written in C#.
rat asyncrat

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-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\KasUpdater = "C:\\Users\\Admin\\Pictures\\KasperskyUpdater\\KasperskyUpdater.exe"	setup.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 864	2584	setup.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	864	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 864	2584	setup.exe	30
PID 2584 wrote to memory of 864	2584	setup.exe	30
PID 2584 wrote to memory of 864	2584	setup.exe	30
PID 2584 wrote to memory of 864	2584	setup.exe	30
PID 2584 wrote to memory of 864	2584	setup.exe	30
PID 2584 wrote to memory of 864	2584	setup.exe	30

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabC7F3.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/864-12-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/864-31-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/864-30-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/864-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/864-4-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/864-6-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/864-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/864-8-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/864-13-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-2-0x0000000000428000-0x0000000000441000-memory.dmp

Filesize
100KB

Download
memory/2584-11-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/2584-0-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/2584-3-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/2584-1-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads