asyncrat | c42ca7e0ce3957b35e9cf2446ebcb7d008e3ceb362d6a6fc16377b7710c16514

General

Target

Solicitud-00002320012454100.exe
Size

3.8MB
MD5

cf388a1574805e6b2e1b96c078d8fce7
SHA1

26b0a1dfb9f093b0c3cabd6cfed4e8d066b04f1c
SHA256

db053aafcb1565ca81c3f760716f0e89a25afccaa3027f6ba712a1ef32bb9b35
SHA512

1d1bd3b02fba34f5bb63441b45245a3a78fd2932aa5fc29cca5f4fd2401dd938a26b7d125d2da8faea8fedca1b460ce22dad77d2866c4b5964deb6a86daee47a
SSDEEP

98304:wmJVD97VAOltrWJP8SDUTYAA56RoeXN3cJvPd4Fm0fP0j:wmJ7hAatrWJP8S+YAfSkN+vPji0j

Score

10^/10

asyncrat enviojulio discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

ENVIOJULIO

C2

hiperconection.duckdns.org:3030

Mutex

PRMBSRGT0kqWhLMuk3qtRg

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\tiopLottt = "C:\\Users\\Admin\\Documents\\unaReversa\\simas.exe"	Solicitud-00002320012454100.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 2528	2676	Solicitud-00002320012454100.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Solicitud-00002320012454100.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31
PID 2676 wrote to memory of 2528	2676	Solicitud-00002320012454100.exe	31

C:\Users\Admin\AppData\Local\Temp\Solicitud-00002320012454100.exe
"C:\Users\Admin\AppData\Local\Temp\Solicitud-00002320012454100.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2528

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab142E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2528-14-0x000000007484E000-0x000000007484F000-memory.dmp

Filesize
4KB

Download
memory/2528-4-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2528-7-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2528-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2528-12-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2528-10-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2528-15-0x0000000074840000-0x0000000074F2E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-32-0x000000007484E000-0x000000007484F000-memory.dmp

Filesize
4KB

Download
memory/2528-33-0x0000000074840000-0x0000000074F2E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-2-0x000000000043A000-0x0000000000453000-memory.dmp

Filesize
100KB

Download
memory/2676-13-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2676-0-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2676-3-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads