asyncrat | f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 02:48

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General

Target

f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
Size

575KB
MD5

18ccd333d9d11e8bc62935caab393521
SHA1

ae54dc1fe193bf3ad174566a47ab1013f107e878
SHA256

f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5
SHA512

a07d2a5cc0cb3044693c0274f728999335021cecf5a5bd697720c88e952f8ca69fd5e5ea7e581a3e400df439de6d5cb8d16d6dad6238f6415eaf4d7e5e1cba21
SSDEEP

12288:UB1oVeonJHI5mtDWQyskRb+udA2w1nelK8X+e:eo5dWmFWXRNA2/RX7

Score

10^/10

asyncrat testing rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Testing

91.207.102.163:9899

Mutex

HbLmK5pOLkik

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

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral2/memory/748-9-0x0000000007370000-0x000000000737C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects file containing reversed ASEP Autorun registry keys 1 IoCs

resource	yara_rule
behavioral2/memory/1560-27-0x0000000000400000-0x0000000000412000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse

Checks computer location settings 2 TTPs 1 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	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 748 set thread context of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110

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 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
1600	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
4952	powershell.exe
4952	powershell.exe
748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
2336	powershell.exe
2336	powershell.exe
2336	powershell.exe
4952	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 4952	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	103
PID 748 wrote to memory of 4952	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	103
PID 748 wrote to memory of 4952	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	103
PID 748 wrote to memory of 2336	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	106
PID 748 wrote to memory of 2336	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	106
PID 748 wrote to memory of 2336	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	106
PID 748 wrote to memory of 1600	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	108
PID 748 wrote to memory of 1600	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	108
PID 748 wrote to memory of 1600	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	108
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110
PID 748 wrote to memory of 1560	748	f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe	110

C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
"C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4952
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\flVdJE.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\flVdJE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC232.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1600
- C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe
  "C:\Users\Admin\AppData\Local\Temp\f191d334abb3d33f9d99efb91b4c12f8f6367d8015c83b3f93adb272a2da5cf5.exe"
  2⤵
  PID:1560

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=4060 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
963b4cf29cbbad02a719dca77223690f

SHA1
71ada1a96258322af31ccf0670ea8fa3d0bb1c33

SHA256
76f19d32a70a1bb143d45fb549f16326238b282eb9ad21d9718d5d886310efc7

SHA512
163c02dcee22f0e16cd9cc62a678611140e65e466441e04db4363218b0eaaccbb50ad9bd5b763cfc83603292fb5bf8a86438df38d3c1173ff1b9df15f33218d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vc0cmhpy.5kv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC232.tmp

Filesize
1KB

MD5
8688f997c3addcc7bba92fd279c348f1

SHA1
4664b6925660d7934426b69d85bc7cfb677d4659

SHA256
9c95d49eb196ab3272d4c3a061bf9642a494289d7cd389ea859dee1d38b1cd93

SHA512
a5560a977246ab5a89967bc9fdd9b82bf2fe463c37b1d9885931a6633f10b5d6e5fed3a9a4c88948ba7d4e10c6c21485bc75e01515114d2bb0a5c51e0ac6eff6

Download Submit
memory/748-5-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/748-2-0x0000000005F10000-0x00000000064B4000-memory.dmp

Filesize
5.6MB

Download
memory/748-6-0x0000000007340000-0x000000000735C000-memory.dmp

Filesize
112KB

Download
memory/748-7-0x0000000007360000-0x0000000007368000-memory.dmp

Filesize
32KB

Download
memory/748-8-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/748-9-0x0000000007370000-0x000000000737C000-memory.dmp

Filesize
48KB

Download
memory/748-10-0x0000000005400000-0x0000000005454000-memory.dmp

Filesize
336KB

Download
memory/748-11-0x0000000010180000-0x000000001021C000-memory.dmp

Filesize
624KB

Download
memory/748-12-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/748-1-0x0000000000F20000-0x0000000000FB6000-memory.dmp

Filesize
600KB

Download
memory/748-0-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/748-3-0x0000000005A00000-0x0000000005A92000-memory.dmp

Filesize
584KB

Download
memory/748-42-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/748-4-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/1560-36-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1560-98-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1560-27-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2336-96-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/2336-90-0x0000000007B10000-0x0000000007B18000-memory.dmp

Filesize
32KB

Download
memory/2336-25-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

Filesize
64KB

Download
memory/2336-87-0x0000000007A20000-0x0000000007A2E000-memory.dmp

Filesize
56KB

Download
memory/2336-83-0x0000000007860000-0x000000000786A000-memory.dmp

Filesize
40KB

Download
memory/2336-24-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

Filesize
64KB

Download
memory/2336-70-0x0000000075770000-0x00000000757BC000-memory.dmp

Filesize
304KB

Download
memory/2336-22-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/2336-55-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

Filesize
64KB

Download
memory/2336-69-0x000000007FA10000-0x000000007FA20000-memory.dmp

Filesize
64KB

Download
memory/2336-53-0x0000000006830000-0x000000000687C000-memory.dmp

Filesize
304KB

Download
memory/4952-18-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/4952-54-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/4952-56-0x000000007F850000-0x000000007F860000-memory.dmp

Filesize
64KB

Download
memory/4952-57-0x00000000074C0000-0x00000000074F2000-memory.dmp

Filesize
200KB

Download
memory/4952-58-0x0000000075770000-0x00000000757BC000-memory.dmp

Filesize
304KB

Download
memory/4952-52-0x00000000064F0000-0x000000000650E000-memory.dmp

Filesize
120KB

Download
memory/4952-68-0x0000000006A70000-0x0000000006A8E000-memory.dmp

Filesize
120KB

Download
memory/4952-37-0x0000000005F00000-0x0000000006254000-memory.dmp

Filesize
3.3MB

Download
memory/4952-80-0x0000000007700000-0x00000000077A3000-memory.dmp

Filesize
652KB

Download
memory/4952-81-0x0000000007E60000-0x00000000084DA000-memory.dmp

Filesize
6.5MB

Download
memory/4952-82-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/4952-29-0x0000000005E70000-0x0000000005ED6000-memory.dmp

Filesize
408KB

Download
memory/4952-84-0x0000000007A90000-0x0000000007B26000-memory.dmp

Filesize
600KB

Download
memory/4952-85-0x0000000007A10000-0x0000000007A21000-memory.dmp

Filesize
68KB

Download
memory/4952-28-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/4952-86-0x0000000007A40000-0x0000000007A4E000-memory.dmp

Filesize
56KB

Download
memory/4952-88-0x0000000007A50000-0x0000000007A64000-memory.dmp

Filesize
80KB

Download
memory/4952-89-0x0000000007B50000-0x0000000007B6A000-memory.dmp

Filesize
104KB

Download
memory/4952-26-0x0000000005650000-0x0000000005672000-memory.dmp

Filesize
136KB

Download
memory/4952-20-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/4952-97-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/4952-21-0x0000000005840000-0x0000000005E68000-memory.dmp

Filesize
6.2MB

Download
memory/4952-19-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/4952-17-0x0000000002BC0000-0x0000000002BF6000-memory.dmp

Filesize
216KB

Download