ammyyadmin | 21bee7d02188387833f3ad000ee9a7117a1f0bd6f305f826fe1146a6724d06dd

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 23:58

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General

Target

ee7dd8bbd4defb282eae880577fc6200N.exe
Size

955KB
MD5

ee7dd8bbd4defb282eae880577fc6200
SHA1

52269570cfa0efa466c9505b7f5538c8412cde70
SHA256

21bee7d02188387833f3ad000ee9a7117a1f0bd6f305f826fe1146a6724d06dd
SHA512

063a7bb45eda2c8e802107dc2c647a19b96733f645bc8da392ff2dc5fb9e4a514ca2f23a6a92c35e9b317de8a7a60429910baf9ce6569f0f9ea8179deaf20458
SSDEEP

24576:rMjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsx7:mJ5gEKNikf3hBfUiWx7

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/0x000900000002341f-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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	ee7dd8bbd4defb282eae880577fc6200N.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	budha.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4600-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000900000002341f-7.dat	upx
behavioral2/memory/4600-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/5084-20-0x0000000000400000-0x000000000040F000-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	ee7dd8bbd4defb282eae880577fc6200N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 5084	4600	ee7dd8bbd4defb282eae880577fc6200N.exe	86
PID 4600 wrote to memory of 5084	4600	ee7dd8bbd4defb282eae880577fc6200N.exe	86
PID 4600 wrote to memory of 5084	4600	ee7dd8bbd4defb282eae880577fc6200N.exe	86

C:\Users\Admin\AppData\Local\Temp\ee7dd8bbd4defb282eae880577fc6200N.exe
"C:\Users\Admin\AppData\Local\Temp\ee7dd8bbd4defb282eae880577fc6200N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600
- 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:5084

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

Replay Monitor

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Downloads

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

Filesize
956KB

MD5
1a982376d6d2b46cc4a6c28f39784b61

SHA1
ecbe2948b051d54365d30b7d2d0b94c4538b3323

SHA256
0ac3b06df9eca2702237562ba6605ddf76368a7401cadca42e48e297475ce010

SHA512
b2303b7c70c46d8b094b7b0991a1380066152c429d513fdaa02ed9551ed1caafdd1929083705caf305bce46941bc588a781890c0c4c776f14b35b992b6cb4116

Download Submit
memory/4600-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4600-1-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/4600-3-0x00000000026D0000-0x0000000002AD0000-memory.dmp

Filesize
4.0MB

Download
memory/4600-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/5084-13-0x00000000025C0000-0x00000000029C0000-memory.dmp

Filesize
4.0MB

Download
memory/5084-12-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/5084-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download