asyncrat | c0885fb20ec6822ecf51e73751f0192f09f0e747ca20f9b75458222bc4c685e5

Resubmissions

28-07-2024 05:32

240728-f8nhfstgma 10

28-07-2024 05:20

240728-f1k3cszemj 10

Analysis

max time kernel
13s
max time network
31s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-07-2024 05:20

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General

Target

Rb (1).exe
Size

8.0MB
MD5

ae4ff56ceb6716a8f9338e084f7701d4
SHA1

4cabe539d621d59f41a481ffac48a8cf8592c14d
SHA256

c0885fb20ec6822ecf51e73751f0192f09f0e747ca20f9b75458222bc4c685e5
SHA512

72fee97a9af3d94699af86d85401fc1d2be5b4310661f0860ae78fecc00d8da0aa76554785ec64678d3e98f5040a888f1e7324f11cb7c1c966a6b698d3394838
SSDEEP

1536:M9RvNeRcklHCFmD3IWvPdb1SzXWTkDxaaDE3Zx7FkhDpqFUUQDS+0basrdVsQDQ:cRvi/NIWvPdb2XoJZZmhDpl/uaWdVsv

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

qa.riu.one:1420

Mutex

sVDhayko8Fn8

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 936	2388	Rb (1).exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 6 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Rb (1).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.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
2700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2120	chrome.exe
2120	chrome.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2388	Rb (1).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	vbc.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe
2120	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 936	2388	Rb (1).exe	31
PID 2388 wrote to memory of 580	2388	Rb (1).exe	32
PID 2388 wrote to memory of 580	2388	Rb (1).exe	32
PID 2388 wrote to memory of 580	2388	Rb (1).exe	32
PID 2388 wrote to memory of 580	2388	Rb (1).exe	32
PID 2388 wrote to memory of 2084	2388	Rb (1).exe	34
PID 2388 wrote to memory of 2084	2388	Rb (1).exe	34
PID 2388 wrote to memory of 2084	2388	Rb (1).exe	34
PID 2388 wrote to memory of 2084	2388	Rb (1).exe	34
PID 2084 wrote to memory of 2700	2084	cmd.exe	36
PID 2084 wrote to memory of 2700	2084	cmd.exe	36
PID 2084 wrote to memory of 2700	2084	cmd.exe	36
PID 2084 wrote to memory of 2700	2084	cmd.exe	36
PID 2388 wrote to memory of 2828	2388	Rb (1).exe	37
PID 2388 wrote to memory of 2828	2388	Rb (1).exe	37
PID 2388 wrote to memory of 2828	2388	Rb (1).exe	37
PID 2388 wrote to memory of 2828	2388	Rb (1).exe	37
PID 2120 wrote to memory of 2020	2120	chrome.exe	43
PID 2120 wrote to memory of 2020	2120	chrome.exe	43
PID 2120 wrote to memory of 2020	2120	chrome.exe	43
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44
PID 2120 wrote to memory of 2024	2120	chrome.exe	44

C:\Users\Admin\AppData\Local\Temp\Rb (1).exe
"C:\Users\Admin\AppData\Local\Temp\Rb (1).exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:936
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Local\Temp\svc"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:580
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\svc\svc.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2084
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\svc\svc.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\Rb (1).exe" "C:\Users\Admin\AppData\Local\Temp\svc\svc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:3052

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6f59758,0x7fef6f59768,0x7fef6f59778
  2⤵
  PID:2020
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1160 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:2
  2⤵
  PID:2024
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1504 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:8
  2⤵
  PID:1516
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1576 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:8
  2⤵
  PID:1592
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2324 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:1
  2⤵
  PID:2944
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2348 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:1
  2⤵
  PID:2952
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1592 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:2
  2⤵
  PID:2924
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1272 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:2
  2⤵
  PID:1220
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --mojo-platform-channel-handle=3196 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:1
  2⤵
  PID:1752
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3632 --field-trial-handle=1196,i,4272878067642846113,7287255618195651214,131072 /prefetch:8
  2⤵
  PID:572

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:1556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\DawnCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

Filesize
16B

MD5
aefd77f47fb84fae5ea194496b44c67a

SHA1
dcfbb6a5b8d05662c4858664f81693bb7f803b82

SHA256
4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

SHA512
b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF0B7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/936-6-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-19-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download
memory/936-18-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-15-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-9-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-3-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-5-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-107-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download
memory/936-4-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/936-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/2388-2-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-1-0x0000000000D70000-0x0000000000D9E000-memory.dmp

Filesize
184KB

Download
memory/2388-20-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download