ammyyadmin | df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386

Analysis

max time kernel
113s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 04:08

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General

Target

df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe
Size

975KB
MD5

7c8b77ce3749e212fa084231e4c319f0
SHA1

8a80b6e1647c23c4b0ed04496c4196a65e43f497
SHA256

df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386
SHA512

35f23da2d26c1f5d0dd4d1ae17520b0d965f00259a268130ca7436fe38e1931039a7b75358018d3e9b7fde47417c54d8aa88ff1f867a09c0ce762f050b3f2333
SSDEEP

24576:+MjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxV:7J5gEKNikf3hBfUiWxV

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/0x0009000000023408-7.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe

Executes dropped EXE 1 IoCs

pid	Process
3356	budha.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4136-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x0009000000023408-7.dat	upx
behavioral2/memory/4136-11-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/3356-20-0x0000000000400000-0x0000000000410000-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	df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 3356	4136	df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe	82
PID 4136 wrote to memory of 3356	4136	df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe	82
PID 4136 wrote to memory of 3356	4136	df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe	82

C:\Users\Admin\AppData\Local\Temp\df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe
"C:\Users\Admin\AppData\Local\Temp\df8741c1d82e9a2df69b9acf98d11638ae794e3329f3f58613b48494abd34386N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4136
- 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:3356

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
975KB

MD5
a4f90c3f4c21f12cb6d6c73dae11483e

SHA1
68f4c389ce97fcbf091e8a14e4dfb6f17fb1c691

SHA256
dde05351a45f75215ae8def89b61d1f8bf5420759a9b56b4b222810503f89484

SHA512
0dd3fbc18838b58037f745053df92fcf0d56d660377cd5c49efe2772804c20adb8805598cdd8982ee932107718d9e897deec9db21124d655b18a27097ac359ed

Download Submit
memory/3356-12-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/3356-13-0x00000000025A0000-0x00000000029A0000-memory.dmp

Filesize
4.0MB

Download
memory/3356-20-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4136-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4136-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/4136-3-0x0000000002570000-0x0000000002970000-memory.dmp

Filesize
4.0MB

Download
memory/4136-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download