asyncrat | d5d023c6add2232b9ca0bce13e7b813e9240803feb084d2a8f1d504d96b85a6e

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
02-04-2024 16:54

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General

Target

92077215e723b003502dff2ac974dc43_JaffaCakes118.exe
Size

4.2MB
MD5

92077215e723b003502dff2ac974dc43
SHA1

775b63a3c020c9aead9addb32776beb26704884a
SHA256

d5d023c6add2232b9ca0bce13e7b813e9240803feb084d2a8f1d504d96b85a6e
SHA512

14880d120b50b9ebfd1f08716802d37ba3021655094799cfa98d763f1b91928a137b46eca6b5df5497f4088b19bde546592429037c533756a708220c47aed764
SSDEEP

98304:yJCbuSMburCaMZh0yEKj+WRvrY1dcZ048HV/bFy8jJ7D:MmMbuQZlFY7KsZPN

Score

10^/10

asyncrat oski default infostealer persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.6

Botnet

Default

91.193.75.169:4782

Mutex

DcRatMutex_qwqdanchuk

Attributes

delay
1
install
true
install_file
Windows Security.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Executes dropped EXE 5 IoCs

Processes:

Windows Defender Security.exeOski Cracked.exeWindows Defender Security.exeWindows Security.exeWindows Security.exe

pid	Process
2848	Windows Defender Security.exe
1368	Oski Cracked.exe
2684	Windows Defender Security.exe
2604	Windows Security.exe
1956	Windows Security.exe

Loads dropped DLL 3 IoCs

Processes:

92077215e723b003502dff2ac974dc43_JaffaCakes118.execmd.exe

pid	Process
1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe
1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe
2408	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Windows Defender Security.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\rFMBoLtBRG = "C:\\Users\\Admin\\AppData\\Roaming\\sKGWfQbTCS\\rCTXFgWqTH.exe"	Windows Defender Security.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Windows Defender Security.exeWindows Security.exe

description	pid	Process	procid_target
PID 2848 set thread context of 2684	2848	Windows Defender Security.exe	30
PID 2604 set thread context of 1956	2604	Windows Security.exe	38

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

Processes:

schtasks.exe

pid	Process
2492	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

Processes:

timeout.exe

pid	Process
2524	timeout.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Windows Defender Security.exeWindows Security.exe

pid	Process
2684	Windows Defender Security.exe
2684	Windows Defender Security.exe
2684	Windows Defender Security.exe
2684	Windows Defender Security.exe
2684	Windows Defender Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe
1956	Windows Security.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Windows Defender Security.exeWindows Security.exe

description	pid	Process
Token: SeDebugPrivilege	2684	Windows Defender Security.exe
Token: SeDebugPrivilege	1956	Windows Security.exe

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

92077215e723b003502dff2ac974dc43_JaffaCakes118.exeWindows Defender Security.exeWindows Defender Security.execmd.execmd.exeWindows Security.exe

description	pid	Process	procid_target
PID 1128 wrote to memory of 2848	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	28
PID 1128 wrote to memory of 2848	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	28
PID 1128 wrote to memory of 2848	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	28
PID 1128 wrote to memory of 2848	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	28
PID 1128 wrote to memory of 1368	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	29
PID 1128 wrote to memory of 1368	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	29
PID 1128 wrote to memory of 1368	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	29
PID 1128 wrote to memory of 1368	1128	92077215e723b003502dff2ac974dc43_JaffaCakes118.exe	29
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2848 wrote to memory of 2684	2848	Windows Defender Security.exe	30
PID 2684 wrote to memory of 2860	2684	Windows Defender Security.exe	31
PID 2684 wrote to memory of 2860	2684	Windows Defender Security.exe	31
PID 2684 wrote to memory of 2860	2684	Windows Defender Security.exe	31
PID 2684 wrote to memory of 2860	2684	Windows Defender Security.exe	31
PID 2684 wrote to memory of 2408	2684	Windows Defender Security.exe	33
PID 2684 wrote to memory of 2408	2684	Windows Defender Security.exe	33
PID 2684 wrote to memory of 2408	2684	Windows Defender Security.exe	33
PID 2684 wrote to memory of 2408	2684	Windows Defender Security.exe	33
PID 2860 wrote to memory of 2492	2860	cmd.exe	35
PID 2860 wrote to memory of 2492	2860	cmd.exe	35
PID 2860 wrote to memory of 2492	2860	cmd.exe	35
PID 2860 wrote to memory of 2492	2860	cmd.exe	35
PID 2408 wrote to memory of 2524	2408	cmd.exe	36
PID 2408 wrote to memory of 2524	2408	cmd.exe	36
PID 2408 wrote to memory of 2524	2408	cmd.exe	36
PID 2408 wrote to memory of 2524	2408	cmd.exe	36
PID 2408 wrote to memory of 2604	2408	cmd.exe	37
PID 2408 wrote to memory of 2604	2408	cmd.exe	37
PID 2408 wrote to memory of 2604	2408	cmd.exe	37
PID 2408 wrote to memory of 2604	2408	cmd.exe	37
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38
PID 2604 wrote to memory of 1956	2604	Windows Security.exe	38

C:\Users\Admin\AppData\Local\Temp\92077215e723b003502dff2ac974dc43_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\92077215e723b003502dff2ac974dc43_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Users\Admin\AppData\Roaming\Windows Defender Security Service\Windows Defender Security.exe
  "C:\Users\Admin\AppData\Roaming\Windows Defender Security Service\Windows Defender Security.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Users\Admin\AppData\Roaming\Windows Defender Security Service\Windows Defender Security.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender Security Service\Windows Defender Security.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2684
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Security" /tr '"C:\Users\Admin\AppData\Roaming\Windows Security.exe"' & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2860
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "Windows Security" /tr '"C:\Users\Admin\AppData\Roaming\Windows Security.exe"'
        5⤵
        Creates scheduled task(s)
        
        PID:2492
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5BF5.tmp.bat""
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2408
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:2524
    - - C:\Users\Admin\AppData\Roaming\Windows Security.exe
        
        "C:\Users\Admin\AppData\Roaming\Windows Security.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:2604
      - C:\Users\Admin\AppData\Roaming\Windows Security.exe
        
        "C:\Users\Admin\AppData\Roaming\Windows Security.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1956
- C:\Users\Admin\AppData\Roaming\Oski Cracked.exe
  "C:\Users\Admin\AppData\Roaming\Oski Cracked.exe"
  2⤵
  - Executes dropped EXE
  PID:1368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5BF5.tmp.bat

Filesize
160B

MD5
40c79db60e98e508a95680cfb9ef4722

SHA1
61959861a5f6a58d0a1c9feb2450b425af3da907

SHA256
cae6cafc5da54c829ebf64382e2a7f1dc3a8d62e23945ab5a8ab2f95ca53b200

SHA512
3c6405856ed72d6ab33db758e932ea96e472df030fae6ab7dd204f205a1ba4c863d81f3c1384039269093e432aa3c4fcbf272a02bc72fde09effc0ac958714e5

Download Submit
\Users\Admin\AppData\Roaming\Oski Cracked.exe

Filesize
3.9MB

MD5
2bd0e61c45d352697c5e16437d8055b0

SHA1
0b9b24d396a50c2dc13d73e1f2d57c1891de3f31

SHA256
71efc8fc1dede4f96e837043ad3cbd38a65bd530ce71ae4d44ddc29843fab70b

SHA512
80044d4ece73637328e9b456c3127be02ecc9cea4b12fee65a884fed0266187aec58e6906c652face3b6125d59b9fa10303f02e1d8bfa33dbccb62fd2bc2b73d

Download Submit
\Users\Admin\AppData\Roaming\Windows Defender Security Service\Windows Defender Security.exe

Filesize
148KB

MD5
1802b2a6ead8dbd53c25809cb6dcfb93

SHA1
82293a68beb4729d77badbd252c9f71484915b1e

SHA256
0cec4537c128355f982dd06016a733ab2bd486f479f75b1ca01814b57c0ccc7d

SHA512
1e92486fe7a3bebe764e1fc499504d28fc11acbb32c614c639cf1e40a30a29b4e9ad258617f5fb4b484de46ef526c32ecb0e6cc96591df40d4db41b6980b4dc2

Download Submit
memory/1128-1-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/1128-2-0x00000000009F0000-0x0000000000A30000-memory.dmp

Filesize
256KB

Download
memory/1128-16-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/1128-0-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/1368-19-0x0000000000FE0000-0x00000000013D6000-memory.dmp

Filesize
4.0MB

Download
memory/1368-84-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-20-0x000007FEF53A0000-0x000007FEF5D8C000-memory.dmp

Filesize
9.9MB

Download
memory/1368-82-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-22-0x0000000076D70000-0x0000000076E8F000-memory.dmp

Filesize
1.1MB

Download
memory/1368-80-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-79-0x0000000076D70000-0x0000000076E8F000-memory.dmp

Filesize
1.1MB

Download
memory/1368-78-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-76-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-75-0x000007FEF53A0000-0x000007FEF5D8C000-memory.dmp

Filesize
9.9MB

Download
memory/1368-85-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/1368-50-0x000000001B360000-0x000000001B77C000-memory.dmp

Filesize
4.1MB

Download
memory/1956-73-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1956-83-0x0000000000A30000-0x0000000000A70000-memory.dmp

Filesize
256KB

Download
memory/1956-81-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-77-0x0000000000A30000-0x0000000000A70000-memory.dmp

Filesize
256KB

Download
memory/1956-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1956-70-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2604-74-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-54-0x0000000000ED0000-0x0000000000EFC000-memory.dmp

Filesize
176KB

Download
memory/2604-55-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-57-0x0000000000380000-0x00000000003C0000-memory.dmp

Filesize
256KB

Download
memory/2684-31-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-39-0x00000000011D0000-0x0000000001210000-memory.dmp

Filesize
256KB

Download
memory/2684-48-0x00000000721F0000-0x00000000728DE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-34-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-28-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-27-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-36-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-26-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-37-0x00000000721F0000-0x00000000728DE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-38-0x00000000721F0000-0x00000000728DE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-21-0x0000000004920000-0x0000000004960000-memory.dmp

Filesize
256KB

Download
memory/2848-24-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/2848-18-0x00000000721F0000-0x00000000728DE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-17-0x0000000001370000-0x000000000139C000-memory.dmp

Filesize
176KB

Download