asyncrat | 7fdd01a97937e772442349582da60906c7af11674de1d2e7b5d8ef735d541310

Analysis

max time kernel
20s
max time network
20s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2024, 22:25

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General

Target

2.3.3.exe
Size

1.7MB
MD5

6eb122e96a700bd2b8cc99145e341dca
SHA1

cb7b638457cc0c9d91f2d160cff668be728e98e7
SHA256

7fdd01a97937e772442349582da60906c7af11674de1d2e7b5d8ef735d541310
SHA512

a58e58533c58adc4e247d7a8e9f96034e04083b58d24b4f31ce191722978a2544d620e44d54ede8956698267dda2466303085d2f4b013859d928e915551d73e4
SSDEEP

24576:m9ohkx17Y1hjhLYgHZ/3n9xNGEDx6sjoduqJaa+WB0cmukAoArSnw4GTNL2aa3/K:2skxe1/vNG2jSuryBJoeSnw4uO

Score

10^/10

asyncrat ahk discovery evasion rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

ahk

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

ZCYbbgUqVRxZ

Attributes

delay
3
install
false
install_file
powerhouse.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/4204-1-0x00000000007C0000-0x0000000000C0C000-memory.dmp	family_asyncrat
behavioral1/memory/4204-2-0x00000000007C0000-0x0000000000C0C000-memory.dmp	family_asyncrat

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2.3.3.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2.3.3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2.3.3.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	2.3.3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4204	2.3.3.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 1 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	2.3.3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4204	2.3.3.exe
4204	2.3.3.exe
4376	msedge.exe
4376	msedge.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4204	2.3.3.exe
Token: SeDebugPrivilege	4204	2.3.3.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 1500	720	msedge.exe	94
PID 720 wrote to memory of 1500	720	msedge.exe	94
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 2020	720	msedge.exe	95
PID 720 wrote to memory of 4376	720	msedge.exe	96
PID 720 wrote to memory of 4376	720	msedge.exe	96
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97
PID 720 wrote to memory of 2104	720	msedge.exe	97

C:\Users\Admin\AppData\Local\Temp\2.3.3.exe
"C:\Users\Admin\AppData\Local\Temp\2.3.3.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4204

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefault4ff26ffchb375h487dh9253hdc410e9d909c
1⤵
- Suspicious use of WriteProcessMemory
PID:720
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x120,0x124,0x128,0xfc,0x12c,0x7ffcecce46f8,0x7ffcecce4708,0x7ffcecce4718
  2⤵
  PID:1500
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2032 /prefetch:2
  2⤵
  PID:2020
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2368 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4376
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2912 /prefetch:8
  2⤵
  PID:2104

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:732

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
f426165d1e5f7df1b7a3758c306cd4ae

SHA1
59ef728fbbb5c4197600f61daec48556fec651c1

SHA256
b68dfc21866d0abe5c75d70acc54670421fa9b26baf98af852768676a901b841

SHA512
8d437fcb85acb0705bf080141e7a021740901248985a76299ea8c43e46ad78fb88c738322cf302f6a550caa5e79d85b36827e9b329b1094521b17cf638c015b6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
dbb05b40602c65710f74220a10b01533

SHA1
16ecc8ec546b34d04acb91048ea40d534c670e25

SHA256
7370b172d6318aec6c8635911b7c0b295e6992a7e83e048746dc35f3f3dab9d0

SHA512
426575f996bb0ef8742eac952e8507886046a53710090f71368cda0e1a32a875ddf54ef91df6d6fde8309395ea95a696ee2c48ece365e7779569eab6d547933d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
8KB

MD5
d0b2f98466bed461736265fb13746bd6

SHA1
996c5df06a6ba70e78efbbc555beefdba8ffd61f

SHA256
30d316115b66c808b7ccc792169b851b5d625eeefa3e8ade2a9e84df23963c4a

SHA512
15ebd214eaeeed40ee71b9d57fcfb77a134d12335a4266aaa85026743a687a907c7f6265651c1c9b506abba19fb6cfa655bc8bcd753aa804f5792c448bacbfd3

Download Submit
memory/4204-0-0x00000000007C0000-0x0000000000C0C000-memory.dmp

Filesize
4.3MB

Download
memory/4204-1-0x00000000007C0000-0x0000000000C0C000-memory.dmp

Filesize
4.3MB

Download
memory/4204-2-0x00000000007C0000-0x0000000000C0C000-memory.dmp

Filesize
4.3MB

Download
memory/4204-3-0x0000000007840000-0x00000000078A6000-memory.dmp

Filesize
408KB

Download
memory/4204-4-0x0000000007CE0000-0x0000000007D7C000-memory.dmp

Filesize
624KB

Download
memory/4204-6-0x00000000007C0000-0x0000000000C0C000-memory.dmp

Filesize
4.3MB

Download