asyncrat | af51aadc7d93eea0355ed2605959052333a0e124753ff5df78d16bcbf5031fbe

General

Target

ScanCopy378493rh1.scr.exe
Size

1.0MB
MD5

c5da839b1c6505b50f9d18588bc29dcc
SHA1

808bcb8114f6188448b06ef581965e6ee09d4562
SHA256

af51aadc7d93eea0355ed2605959052333a0e124753ff5df78d16bcbf5031fbe
SHA512

03cc401161ae408e0b585aee60db9caec298a9f69cd5b1323417dc49771cceb7df3711886542ca7add6ff62091c83b0ae127c26ea2f4112ca6f84edff4e7952d
SSDEEP

12288:7SDJuxq0TA5FCxv2eP0Kla6EMAXmnSBY5eUk4MVYolDfyWEYjms8hV:7S9RK4i0p9r2iYDcmy3qs8hV

Score

10^/10

asyncrat ijefunds rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

Ijefunds

C2

79.134.225.20:8808

Mutex

mmkawdairhcehilxluo

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4152-144-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	ScanCopy378493rh1.scr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4440 set thread context of 4152	4440	ScanCopy378493rh1.scr.exe	105

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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

T1053

pid	Process
2840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
4440	ScanCopy378493rh1.scr.exe
2964	powershell.exe
4440	ScanCopy378493rh1.scr.exe
2964	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4440	ScanCopy378493rh1.scr.exe
Token: SeDebugPrivilege	2964	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 2964	4440	ScanCopy378493rh1.scr.exe	101
PID 4440 wrote to memory of 2964	4440	ScanCopy378493rh1.scr.exe	101
PID 4440 wrote to memory of 2964	4440	ScanCopy378493rh1.scr.exe	101
PID 4440 wrote to memory of 2840	4440	ScanCopy378493rh1.scr.exe	103
PID 4440 wrote to memory of 2840	4440	ScanCopy378493rh1.scr.exe	103
PID 4440 wrote to memory of 2840	4440	ScanCopy378493rh1.scr.exe	103
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105
PID 4440 wrote to memory of 4152	4440	ScanCopy378493rh1.scr.exe	105

C:\Users\Admin\AppData\Local\Temp\ScanCopy378493rh1.scr.exe
"C:\Users\Admin\AppData\Local\Temp\ScanCopy378493rh1.scr.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rahWQrxsGOiUO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2964
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rahWQrxsGOiUO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39A9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2840
- C:\Users\Admin\AppData\Local\Temp\ScanCopy378493rh1.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\ScanCopy378493rh1.scr.exe"
  2⤵
  PID:4152

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp39A9.tmp

Filesize
1KB

MD5
fb46cb55ff6578616fec4ba1fb506e9c

SHA1
fb906c6f37edc4c93446e1a0f372210deae906bc

SHA256
429e8efe686d1985c67bd5b0f8519085f182be0505d3cd5c58179bf0827a95eb

SHA512
70b57e0540340ba60d8322bd7c54602f43a1f55ae7ca9d9cc5d0efea83994533255b2ef2ff0bccd44be05e9e56370e5b40adecc034106bcd232ce081e837bbf6

Download Submit
memory/2964-150-0x0000000006270000-0x000000000628E000-memory.dmp

Filesize
120KB

Download
memory/2964-140-0x0000000004670000-0x00000000046A6000-memory.dmp

Filesize
216KB

Download
memory/2964-157-0x00000000072F0000-0x00000000072F8000-memory.dmp

Filesize
32KB

Download
memory/2964-156-0x0000000007310000-0x000000000732A000-memory.dmp

Filesize
104KB

Download
memory/2964-155-0x0000000007200000-0x000000000720E000-memory.dmp

Filesize
56KB

Download
memory/2964-145-0x0000000004C80000-0x0000000004CA2000-memory.dmp

Filesize
136KB

Download
memory/2964-154-0x0000000007250000-0x00000000072E6000-memory.dmp

Filesize
600KB

Download
memory/2964-142-0x0000000004D90000-0x00000000053B8000-memory.dmp

Filesize
6.2MB

Download
memory/2964-153-0x0000000007040000-0x000000000704A000-memory.dmp

Filesize
40KB

Download
memory/2964-152-0x0000000006FE0000-0x0000000006FFA000-memory.dmp

Filesize
104KB

Download
memory/2964-151-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/2964-146-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/2964-147-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

Filesize
120KB

Download
memory/2964-148-0x0000000006CD0000-0x0000000006D02000-memory.dmp

Filesize
200KB

Download
memory/2964-149-0x00000000733A0000-0x00000000733EC000-memory.dmp

Filesize
304KB

Download
memory/4152-144-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4440-132-0x0000000000F20000-0x0000000001026000-memory.dmp

Filesize
1.0MB

Download
memory/4440-135-0x00000000059D0000-0x00000000059DA000-memory.dmp

Filesize
40KB

Download
memory/4440-133-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/4440-134-0x00000000059F0000-0x0000000005A82000-memory.dmp

Filesize
584KB

Download
memory/4440-137-0x0000000001880000-0x00000000018E6000-memory.dmp

Filesize
408KB

Download
memory/4440-136-0x0000000009400000-0x000000000949C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads