asyncrat | a1117e97df6e8a615eb0dcacec3ae6476e11d66c4f080751d37286d0f4f8013e

Analysis

max time kernel
103s
max time network
146s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 13:56

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General

Target

AsyncClient.exe
Size

47KB
MD5

a5394d7d38a3e45162457f120ae82d62
SHA1

07c9fd54030fed1bc672c573049a65670a14ce01
SHA256

a1117e97df6e8a615eb0dcacec3ae6476e11d66c4f080751d37286d0f4f8013e
SHA512

0f49ce9848d79017ab2da707d1c841c8085001c115e9658ef47501bf75ef7746daebe92ea93f7f7681438d494717c8e0c12f6e05d46c5397b3b669d201e58887
SSDEEP

768:XusZ1ThIn5PWUDvOtmo2qzVVLvEZof6SPIq7LATOk20bRcYEf+3od+ctMOZYBDZe:XusZ1Thsq2pZoqqoTnZbRclf+3ktMOZR

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

127.0.0.1:6522

127.0.0.1:37915

de-engines.gl.at.ply.gg:6522

de-engines.gl.at.ply.gg:37915

these-accommodation.gl.at.ply.gg:6522

these-accommodation.gl.at.ply.gg:37915

Mutex

vmplgwKOt6xO

Attributes

delay
3
install
false
install_file
Steam.exe
install_folder
%Temp%

aes.plain

Signatures

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chrome.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

chrome.exe

pid	Process
1828	chrome.exe
1828	chrome.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

AsyncClient.exechrome.exe

description	pid	Process
Token: SeDebugPrivilege	2420	AsyncClient.exe
Token: SeDebugPrivilege	2420	AsyncClient.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe
Token: SeShutdownPrivilege	1828	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

Processes:

chrome.exe

pid	Process
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

Processes:

chrome.exe

pid	Process
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe
1828	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

chrome.exe

description	pid	Process	procid_target
PID 1828 wrote to memory of 1844	1828	chrome.exe	32
PID 1828 wrote to memory of 1844	1828	chrome.exe	32
PID 1828 wrote to memory of 1844	1828	chrome.exe	32
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2656	1828	chrome.exe	34
PID 1828 wrote to memory of 2976	1828	chrome.exe	35
PID 1828 wrote to memory of 2976	1828	chrome.exe	35
PID 1828 wrote to memory of 2976	1828	chrome.exe	35
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36
PID 1828 wrote to memory of 2836	1828	chrome.exe	36

C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2420

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 AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1828
- 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,0x7fef6da9758,0x7fef6da9768,0x7fef6da9778
  2⤵
  PID:1844
- 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=1152 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:2
  2⤵
  PID:2656
- 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=1520 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:8
  2⤵
  PID:2976
- 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=1544 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:8
  2⤵
  PID:2836
- 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=2356 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:1
  2⤵
  PID:1720
- 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=2368 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:1
  2⤵
  PID:1092
- 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=1196 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:2
  2⤵
  PID:1880
- 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=1152 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:2
  2⤵
  PID:2396
- 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=3296 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:1
  2⤵
  PID:2204
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3472 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:8
  2⤵
  PID:3032
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3504 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:8
  2⤵
  PID:2592
- 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=3792 --field-trial-handle=1340,i,8562115188692583956,10272907900878958191,131072 /prefetch:8
  2⤵
  PID:2492

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:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\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\Preferences

Filesize
5KB

MD5
983409c94a80797f9e8635b0b9e93f19

SHA1
64033b55a51bb2e054a32b42d577e46f4846d422

SHA256
7ec0602e839eeed56ede5742bf0414d5830c1649f6d231a5b11beeeb52b06afa

SHA512
f4d39840705e28516e7b61697d42f5ec829ac88b65e7a91baa8510fcfe2d3e461cbf176c86e8b26b33c5ff35116dbb5429f41cbd155b01eb7fe30d9ce32ff024

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2648.tmp

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
\??\pipe\crashpad_1828_ADNYNLPCJXDTHZMB

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2420-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x0000000000FE0000-0x0000000000FF2000-memory.dmp

Filesize
72KB

Download
memory/2420-2-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-19-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2420-20-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download