ammyyadmin | fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 04:38

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General

Target

fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe
Size

1013KB
MD5

61eec20c008dc186bd425160e4313e1f
SHA1

27d333a13d486cde00a38be9a049b1b2ddab6696
SHA256

fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f
SHA512

83c22c2d441f52d641307be023ceb7a498c568771128e25ef4ba9786e2f1d1abcd75bc817a27d7c899a4a54f65eb2108b70982601d3650cf0d710bfa6396ea7f
SSDEEP

24576:+MjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxw:7J5gEKNikf3hBfUiWxw

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/0x000c000000023b2e-7.dat	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe

Executes dropped EXE 1 IoCs

pid	Process
4928	budha.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2772-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x000c000000023b2e-7.dat	upx
behavioral2/memory/2772-11-0x0000000000400000-0x0000000000410000-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	budha.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 4928	2772	fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe	86
PID 2772 wrote to memory of 4928	2772	fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe	86
PID 2772 wrote to memory of 4928	2772	fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe	86

C:\Users\Admin\AppData\Local\Temp\fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe
"C:\Users\Admin\AppData\Local\Temp\fb4c2e67c84c6804c50f89c9c26d697b4a9e249b7521c4c06709c8759ceea59f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:4928

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
1013KB

MD5
2b60084346b85d3da869cdc5a77c1f48

SHA1
e2d005b209a71bfb3daac23921342428f9a7ace7

SHA256
d02579106143f15dfa431f82d9691d3746124b02214ab8cd09581a8359c67c87

SHA512
7253ff71b33809df5726380ff82b15a1bf8d3b496082c9fa534a8047a0f8f2b98e7e52102cf497c25f22581e133277c258d65c0d0e8224917d57bb05c9097a70

Download Submit
memory/2772-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2772-1-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/2772-3-0x00000000026B0000-0x0000000002AB0000-memory.dmp

Filesize
4.0MB

Download
memory/2772-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4928-13-0x0000000002610000-0x0000000002A10000-memory.dmp

Filesize
4.0MB

Download
memory/4928-12-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download