asyncrat | 9092ddc14431abcaa0467e6c56bdb73c1bc77c6a8e0a77f5b12d95717c47aef5

Analysis

max time kernel
155s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 18:04

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General

Target

87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe
Size

69KB
MD5

1bcc48211ca31660a585b931eb987f93
SHA1

6633d480598a27f756a8ce706e4392b294ccc8ec
SHA256

87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347
SHA512

7704148f1e83bf97e8a6ff7f36b7fc56dee6a2175be55f1c8c9a2629a66d4d19635bfa03a7f4c92b7cbf4fbd27b014a2a2fa58dcc734fd560dab0a9977b3cf86
SSDEEP

1536:Ju4n9Tswb2ksLtF3buXSumtVoGB7dTxYIbdS6w:Ju49Tswb2VLtF3bugbhJxYIbML

Score

10^/10

asyncrat default evasion rat trojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

94.156.68.217:3162

Mutex

sz1D8OiE4OiM

Attributes

delay
3
install
true
install_file
MicrosoftCompabilityTelemtry.exe
install_folder
%AppData%

aes.plain

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchosts.exe

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000800000002323e-6.dat	family_asyncrat

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	MicrosoftCompabilityTelemtry.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	svchosts.exe

Executes dropped EXE 3 IoCs

pid	Process
4288	MicrosoftCompabilityTelemtry.exe
1952	svchosts.exe
3912	MicrosoftCompabilityTelemtry.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchosts.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchosts.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
43	discord.com
42	discord.com

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 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
3016	schtasks.exe
2056	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
432	timeout.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4288	MicrosoftCompabilityTelemtry.exe
4028	powershell.exe
4028	powershell.exe
4028	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1952	svchosts.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4288	MicrosoftCompabilityTelemtry.exe
Token: SeDebugPrivilege	1952	svchosts.exe
Token: SeDebugPrivilege	3912	MicrosoftCompabilityTelemtry.exe
Token: SeDebugPrivilege	4028	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 4288	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	90
PID 2992 wrote to memory of 4288	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	90
PID 2992 wrote to memory of 4288	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	90
PID 2992 wrote to memory of 1952	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	91
PID 2992 wrote to memory of 1952	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	91
PID 2992 wrote to memory of 1952	2992	87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe	91
PID 4288 wrote to memory of 4336	4288	MicrosoftCompabilityTelemtry.exe	102
PID 4288 wrote to memory of 4336	4288	MicrosoftCompabilityTelemtry.exe	102
PID 4288 wrote to memory of 4336	4288	MicrosoftCompabilityTelemtry.exe	102
PID 1952 wrote to memory of 3440	1952	svchosts.exe	103
PID 1952 wrote to memory of 3440	1952	svchosts.exe	103
PID 1952 wrote to memory of 3440	1952	svchosts.exe	103
PID 1952 wrote to memory of 844	1952	svchosts.exe	106
PID 1952 wrote to memory of 844	1952	svchosts.exe	106
PID 1952 wrote to memory of 844	1952	svchosts.exe	106
PID 4288 wrote to memory of 2364	4288	MicrosoftCompabilityTelemtry.exe	108
PID 4288 wrote to memory of 2364	4288	MicrosoftCompabilityTelemtry.exe	108
PID 4288 wrote to memory of 2364	4288	MicrosoftCompabilityTelemtry.exe	108
PID 3440 wrote to memory of 4028	3440	cmd.exe	110
PID 3440 wrote to memory of 4028	3440	cmd.exe	110
PID 3440 wrote to memory of 4028	3440	cmd.exe	110
PID 2364 wrote to memory of 432	2364	cmd.exe	111
PID 2364 wrote to memory of 432	2364	cmd.exe	111
PID 2364 wrote to memory of 432	2364	cmd.exe	111
PID 844 wrote to memory of 3016	844	cmd.exe	112
PID 844 wrote to memory of 3016	844	cmd.exe	112
PID 844 wrote to memory of 3016	844	cmd.exe	112
PID 4336 wrote to memory of 2056	4336	cmd.exe	113
PID 4336 wrote to memory of 2056	4336	cmd.exe	113
PID 4336 wrote to memory of 2056	4336	cmd.exe	113
PID 2364 wrote to memory of 3912	2364	cmd.exe	114
PID 2364 wrote to memory of 3912	2364	cmd.exe	114
PID 2364 wrote to memory of 3912	2364	cmd.exe	114

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchosts.exe

C:\Users\Admin\AppData\Local\Temp\87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe
"C:\Users\Admin\AppData\Local\Temp\87e382fef7c2e0010af6532600c22578d26d041a78a1c3ec16dbf0d5eb39f347.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Local\Temp\MicrosoftCompabilityTelemtry.exe
  "C:\Users\Admin\AppData\Local\Temp\MicrosoftCompabilityTelemtry.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "MicrosoftCompabilityTelemtry" /tr '"C:\Users\Admin\AppData\Roaming\MicrosoftCompabilityTelemtry.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4336
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "MicrosoftCompabilityTelemtry" /tr '"C:\Users\Admin\AppData\Roaming\MicrosoftCompabilityTelemtry.exe"'
      4⤵
      Creates scheduled task(s)
      PID:2056
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA454.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2364
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:432
  - - C:\Users\Admin\AppData\Roaming\MicrosoftCompabilityTelemtry.exe
      "C:\Users\Admin\AppData\Roaming\MicrosoftCompabilityTelemtry.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:3912
- C:\Users\Admin\AppData\Local\Temp\svchosts.exe
  "C:\Users\Admin\AppData\Local\Temp\svchosts.exe"
  2⤵
  - UAC bypass
  - Checks computer location settings
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1952
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\,C:\Users\Admin\AppData\Roaming
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3440
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\,C:\Users\Admin\AppData\Roaming
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4028
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C schtasks /create /tn svchosts /tr C:\Users\Admin\AppData\Roaming\svchosts.exe /sc onlogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:844
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn svchosts /tr C:\Users\Admin\AppData\Roaming\svchosts.exe /sc onlogon
      4⤵
      Creates scheduled task(s)
      PID:3016

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:2200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Scheduled Task/Job

T1053

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\MicrosoftCompabilityTelemtry.exe.log

Filesize
522B

MD5
acc9090417037dfa2a55b46ed86e32b8

SHA1
53fa6fb25fb3e88c24d2027aca6ae492b2800a4d

SHA256
2412679218bb0a7d05ceee32869bbb223619bde9966c4c460a68304a3367724b

SHA512
d51f7085ec147c708f446b9fb6923cd2fb64596d354ed929e125b30ace57c8cb3217589447a36960e5d3aea87a4e48aaa82c7509eced6d6c2cecd71fcfe3697b

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

Filesize
45KB

MD5
fee8e7725f89e5b99e165996d89e0d29

SHA1
827fe03932f7c557703f62b4eec683eb1a14b9c2

SHA256
b56464ef35b43d5e04a3fe655c2e80567fa67acb396221357b852e04952d0809

SHA512
11adb2c2320c21848ecca24cc542a17fc7bf80e74ef54b4f7e1ec088af5614ad04db64ab3ae1b9a8bf7106aaa6355a8ef686b4839a5756405b76425edcf6685e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bb0knvz1.1vz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
12KB

MD5
0ade14069ec4dafe0f02c419da0f9ddd

SHA1
01fce38588ec0cbb6d17be718ba5867551180e32

SHA256
7df0b72ac5875dc5025d2f1e8d1eaa2cac1a4c58f2289603c852d2f9e191c948

SHA512
43e448d4bf3e25d6b154bf98da25dc183404ff35515029570f4554fa048d14ef208c4a8c7ac1024718abbb96c73c3e94ca8c5bcf8f8e8852c152b8c13959c92e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA454.tmp.bat

Filesize
172B

MD5
518409fe904cd51efdc80b5cd5f53252

SHA1
af6653d252621349c87346ee54f4d58693fb07bb

SHA256
b3d15d611493c88fb6c59dd5e77d7dfde530b338304b1769642face1a20b7cf5

SHA512
0f2663a9489bb83f8ce98715d946554e646f410be36007103fc1753e09678fbc84c8c93eb10bad13c716e3b1a4c463f51464351e209d2dd14bf8434aad8cd0df

Download Submit
memory/1952-31-0x0000000004B60000-0x0000000004BF2000-memory.dmp

Filesize
584KB

Download
memory/1952-39-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/1952-41-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/1952-29-0x0000000000170000-0x000000000017A000-memory.dmp

Filesize
40KB

Download
memory/1952-30-0x0000000005020000-0x00000000055C4000-memory.dmp

Filesize
5.6MB

Download
memory/1952-27-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/1952-58-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/1952-36-0x0000000004C20000-0x0000000004C2A000-memory.dmp

Filesize
40KB

Download
memory/1952-34-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/1952-35-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/2992-0-0x0000000000100000-0x0000000000116000-memory.dmp

Filesize
88KB

Download
memory/2992-1-0x00007FFEAC100000-0x00007FFEACBC1000-memory.dmp

Filesize
10.8MB

Download
memory/2992-23-0x00007FFEAC100000-0x00007FFEACBC1000-memory.dmp

Filesize
10.8MB

Download
memory/3912-62-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3912-66-0x0000000003370000-0x0000000003380000-memory.dmp

Filesize
64KB

Download
memory/3912-56-0x0000000003370000-0x0000000003380000-memory.dmp

Filesize
64KB

Download
memory/3912-55-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4028-48-0x0000000002720000-0x0000000002730000-memory.dmp

Filesize
64KB

Download
memory/4028-64-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/4028-76-0x0000000005690000-0x00000000059E4000-memory.dmp

Filesize
3.3MB

Download
memory/4028-47-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4028-65-0x0000000005520000-0x0000000005586000-memory.dmp

Filesize
408KB

Download
memory/4028-49-0x00000000025F0000-0x0000000002626000-memory.dmp

Filesize
216KB

Download
memory/4028-57-0x0000000004D90000-0x00000000053B8000-memory.dmp

Filesize
6.2MB

Download
memory/4028-63-0x0000000004CE0000-0x0000000004D02000-memory.dmp

Filesize
136KB

Download
memory/4028-59-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4028-60-0x0000000002720000-0x0000000002730000-memory.dmp

Filesize
64KB

Download
memory/4028-61-0x0000000002720000-0x0000000002730000-memory.dmp

Filesize
64KB

Download
memory/4288-33-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4288-37-0x0000000005E70000-0x0000000005F0C000-memory.dmp

Filesize
624KB

Download
memory/4288-38-0x0000000005980000-0x0000000005990000-memory.dmp

Filesize
64KB

Download
memory/4288-26-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4288-32-0x0000000005980000-0x0000000005990000-memory.dmp

Filesize
64KB

Download
memory/4288-28-0x0000000000F20000-0x0000000000F32000-memory.dmp

Filesize
72KB

Download
memory/4288-50-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download