andromeda | fc15d25eeb4dcec4c5841521ca0b180cd55d6f193a48beefc20368b96e09e12a

Analysis

max time kernel
140s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2025, 08:51

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General

Target

a9129_3.exe
Size

63KB
MD5

21f991b22fd9092452f4767e110964cf
SHA1

94493d2055bee28d5ebfe1900fa17445c7fa744b
SHA256

5151b6753703f3a62c3a94eb30111d39dba722c85e8a83e12cf49dbe325ac3f5
SHA512

8b3f5074abd9b63e716ed477b3a616206f38f1af047758b6f0785cdbe1cfd08f174eef9ce4a107579a479ac86803ac4d06538cb2ddbabceb56b0c49245113530
SSDEEP

1536:hau1Tafv9HpHzknoWHDwhok79srBVrlLf1:hau1Ta9HeoWHDQok7SrBVhLf1

Score

10^/10

andromeda backdoor botnet discovery persistence

Malware Config

Signatures

Andromeda family
andromeda
Andromeda, Gamarue
Andromeda, also known as Gamarue, is a modular botnet malware primarily used for distributing other types of malware and it's written in C++.
botnet backdoor andromeda

Detects Andromeda payload. 2 IoCs

resource	yara_rule
behavioral2/memory/32-10-0x0000000000C60000-0x0000000000C65000-memory.dmp	family_andromeda
behavioral2/memory/32-14-0x0000000000C60000-0x0000000000C65000-memory.dmp	family_andromeda

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\61100 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msvdzo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
32	svchost.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	a9129_3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a9129_3.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\msvdzo.exe	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2084	1408	WerFault.exe	86

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	a9129_3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1408	a9129_3.exe
1408	a9129_3.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1408	a9129_3.exe
1408	a9129_3.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 32	1408	a9129_3.exe	87
PID 1408 wrote to memory of 32	1408	a9129_3.exe	87
PID 1408 wrote to memory of 32	1408	a9129_3.exe	87

C:\Users\Admin\AppData\Local\Temp\a9129_3.exe
"C:\Users\Admin\AppData\Local\Temp\a9129_3.exe"
1⤵
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\syswow64\svchost.exe
  2⤵
  - Adds policy Run key to start application
  - Deletes itself
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:32
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 428
  2⤵
  - Program crash
  PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1408 -ip 1408
1⤵
PID:632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/32-5-0x0000000000CF0000-0x0000000000CFE000-memory.dmp

Filesize
56KB

Download
memory/32-7-0x0000000000CF0000-0x0000000000CFE000-memory.dmp

Filesize
56KB

Download
memory/32-10-0x0000000000C60000-0x0000000000C65000-memory.dmp

Filesize
20KB

Download
memory/32-14-0x0000000000C60000-0x0000000000C65000-memory.dmp

Filesize
20KB

Download
memory/1408-0-0x0000000002A60000-0x0000000002A88000-memory.dmp

Filesize
160KB

Download
memory/1408-2-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1408-4-0x0000000000410000-0x0000000000412000-memory.dmp

Filesize
8KB

Download
memory/1408-8-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download