asyncrat | 2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/12/2024, 15:00

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General

Target

2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
Size

681KB
MD5

00e1431f15d4e7d7521adaf56d1cf9eb
SHA1

63c4a9d2327a46296e4d54c9baeb20f683ec9d87
SHA256

2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609
SHA512

c0e78ad73ffa3f4c0ab94ce0e21dd3cb0638cdbccbe5b3bcd0d841193a11fbd3485c176b010c3196b21d940dfa5b18f09f53e3dfdd28c5ba881df1637584118d
SSDEEP

12288:Cp1zzClVwk1lf0PmOPRQBsoNiDgOIu9diWKg0p2/DqJg7:Cpx8VwkiWaUOIuXZ

Score

10^/10

asyncrat redline 3333----japanese----3333 japanporn defense_evasion discovery infostealer rat

Malware Config

Extracted

Family

redline

Botnet

JAPANPORN

45.134.225.35:7821

Attributes

auth_value
18d8418fe71c08942d2ddd0435edb9e5

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

3333----Japanese----3333

Mutex

Aakn1515knAakn1515kn!

Attributes

delay
3
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/uqaaCRiU

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012250-1661.dat	family_redline
behavioral1/memory/2152-1664-0x0000000000F30000-0x0000000000F50000-memory.dmp	family_redline

Redline family
redline

System Binary Proxy Execution: Regsvcs/Regasm 1 TTPs 2 IoCs

Abuse Regasm to proxy execution of malicious code.

defense_evasion

Regsvcs/Regasm

T1218.009

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\RegAsm.exe	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\RegAsm.exe	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe

Deletes itself 1 IoCs

pid	Process
1276	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
2784	RegAsm.exe
536	RegAsm.exe
2152	Yljfderdjwutqbwifekmjhjapanred.exe

Loads dropped DLL 4 IoCs

pid	Process
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2568	WScript.exe
536	RegAsm.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
5	pastebin.com
6	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Yljfderdjwutqbwifekmjhjapanred.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
1276	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
Token: SeDebugPrivilege	1276	powershell.exe
Token: SeDebugPrivilege	536	RegAsm.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2568	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	32
PID 2772 wrote to memory of 2568	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	32
PID 2772 wrote to memory of 2568	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	32
PID 2772 wrote to memory of 2568	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	32
PID 2772 wrote to memory of 1276	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	33
PID 2772 wrote to memory of 1276	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	33
PID 2772 wrote to memory of 1276	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	33
PID 2772 wrote to memory of 1276	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	33
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 2784	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	35
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2772 wrote to memory of 536	2772	2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe	36
PID 2568 wrote to memory of 2152	2568	WScript.exe	37
PID 2568 wrote to memory of 2152	2568	WScript.exe	37
PID 2568 wrote to memory of 2152	2568	WScript.exe	37
PID 2568 wrote to memory of 2152	2568	WScript.exe	37

C:\Users\Admin\AppData\Local\Temp\2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe
"C:\Users\Admin\AppData\Local\Temp\2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe"
1⤵
- System Binary Proxy Execution: Regsvcs/Regasm
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Nomzctbtacmztkfxofvv.vbs"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Users\Admin\AppData\Local\Temp\Yljfderdjwutqbwifekmjhjapanred.exe
    "C:\Users\Admin\AppData\Local\Temp\Yljfderdjwutqbwifekmjhjapanred.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2152
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\2dd40beb048efe94f7a62ac83f95a5da2815e05a248ef970dff3f20a4eb8f609.exe" -Force
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1276
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

System Binary Proxy Execution

T1218

Regsvcs/Regasm

T1218.009

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Nomzctbtacmztkfxofvv.vbs

Filesize
118B

MD5
c79baba091f7498ce4d61f075f88a4b7

SHA1
9906c4bf1e3365c38833c89cd9b1b50c3ccb64a3

SHA256
63d3754108ef87e215e9d68095b97d8c62468496fb7348cf0d4c76892bda2bad

SHA512
9f571c9211e5f1de1edf22c1ee5bfec5d90e7bc705c3963adbc8db20d56ee2a06b410318c2d61017dae49c4af20e4b53318561e265fa64406b50ef6f291bec18

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

Filesize
104KB

MD5
0eef332fd798b03319283bd2b10787a2

SHA1
14e4177525f12e20b00c21a05ba711057fb233da

SHA256
a54a8b8a85445de206467249b33785a9c1d33828b1eb57e3531d01ad7488e1b3

SHA512
fd205aaa4f94df3ec9d3699deb3384f9f51a28ef098cb0e89945ee5b188df6ba7c05b13ecda9c80cd8fddffb664a60f3bd41e566d4d48e2445469e9120c94994

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/536-1665-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2152-1664-0x0000000000F30000-0x0000000000F50000-memory.dmp

Filesize
128KB

Download
memory/2772-32-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-28-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-62-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-60-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-58-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-56-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-54-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-52-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-50-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-48-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-46-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-44-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-42-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-40-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-38-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-36-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-34-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

Filesize
4KB

Download
memory/2772-30-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-64-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-26-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-24-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-22-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-20-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-18-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-16-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-14-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-12-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-6-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-4-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-3-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-1629-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-1637-0x0000000004400000-0x0000000004418000-memory.dmp

Filesize
96KB

Download
memory/2772-66-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-8-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-1662-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-10-0x0000000004360000-0x00000000043DE000-memory.dmp

Filesize
504KB

Download
memory/2772-2-0x0000000004360000-0x00000000043E4000-memory.dmp

Filesize
528KB

Download
memory/2772-1-0x0000000000940000-0x00000000009F0000-memory.dmp

Filesize
704KB

Download