ammyyadmin | ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609

Analysis

max time kernel
144s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2025, 02:31

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General

Target

ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe
Size

976KB
MD5

679425d4dad77902cf06eec729aef764
SHA1

26d2a0f339f508cf508e86c817f0aca53f61c510
SHA256

ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609
SHA512

74344889484c0e2867278a352e36b09cde5de8d984ddf67ca7779072942e3225d656395489b892b7137baaf90f3d59925852d8b34e6a5ed116806babdd4ea609
SSDEEP

24576:+MjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxq:7J5gEKNikf3hBfUiWxq

Score

10^/10

ammyyadmin discovery rat upx

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023c9c-7.dat	family_ammyyadmin

Ammyyadmin family
ammyyadmin

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe

Executes dropped EXE 1 IoCs

pid	Process
1048	budha.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3204-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x0009000000023c9c-7.dat	upx
behavioral2/memory/3204-11-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1048-21-0x0000000000400000-0x0000000000410000-memory.dmp	upx

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

System Information Discovery
T1082

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	ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 1048	3204	ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe	83
PID 3204 wrote to memory of 1048	3204	ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe	83
PID 3204 wrote to memory of 1048	3204	ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe	83

C:\Users\Admin\AppData\Local\Temp\ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe
"C:\Users\Admin\AppData\Local\Temp\ac9ca1ada708e146492076eb2051c874917f65271506caa57e7901e9c46a4609.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Users\Admin\AppData\Local\Temp\budha.exe
  "C:\Users\Admin\AppData\Local\Temp\budha.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\budha.exe

Filesize
976KB

MD5
375f5cf7661b27f923a4c1566a9949b0

SHA1
66fe777eb0512791d1fd9c0eb346a6da56c6cda5

SHA256
dc4df84f275606e09351cbddcb9b3f3705f2f39d129136dcd90ae77e8ac055f6

SHA512
18a75d610b3d38df5eb24daf32d659bfd42b5ab68890f6945a70d91cb35dcdf037b668ce903873c60409528134360d69f9744bba1f9c740b0051ab4c62ba934b

Download Submit
memory/1048-12-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/1048-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3204-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3204-1-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/3204-3-0x0000000002570000-0x0000000002970000-memory.dmp

Filesize
4.0MB

Download
memory/3204-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download