ammyyadmin | 85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2

Analysis

max time kernel
145s
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
27-12-2024 23:54

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General

Target

85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe
Size

976KB
MD5

ca098378b9bccd0c6c974d4007f10e92
SHA1

b34e7e690fc79af173acf4cb4e2ad7b2deedd28a
SHA256

85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2
SHA512

ceb1336e40eed4fe458d24472723f932eac82a7c5e5d9809e9756e284180c5712e3717d0fe0637f72526c0cb7eacb70597ee34392a3a05a6fa9b8e32e6d7a27c
SSDEEP

24576:eMjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxe:bJ5gEKNikf3hBfUiWxe

Score

10^/10

ammyyadmin discovery rat

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b9d-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe

Executes dropped EXE 1 IoCs

pid	Process
1348	budha.exe

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	85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 1348	3460	85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe	82
PID 3460 wrote to memory of 1348	3460	85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe	82
PID 3460 wrote to memory of 1348	3460	85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe	82

C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe
"C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3460
- 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:1348

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
bd646fed0926e03d74a831a433485caf

SHA1
311551923c770e92c595714824a790b49f3fa0bb

SHA256
24b84f60e054fea244b1a84f2f38243b2c37282cea363c0b8b7966c0e4148e92

SHA512
d82b74af731b7c73870987337856a056226a728ebe88af355dabc7b85c369a7fb18cfcfe5c9119145240be27f08589b96accab9a6a14868167fbecda223b44ad

Download Submit
memory/1348-13-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/1348-14-0x0000000002620000-0x0000000002A20000-memory.dmp

Filesize
4.0MB

Download
memory/1348-21-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3460-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3460-1-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/3460-3-0x0000000002710000-0x0000000002B10000-memory.dmp

Filesize
4.0MB

Download
memory/3460-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download