ammyyadmin | 5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 01:50

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General

Target

5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe
Size

995KB
MD5

d8fd463f5ac1a9f91c1348dce1b9c0d0
SHA1

87a51b2806a844260a33e36bb7ec481713fd0d73
SHA256

5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b
SHA512

ccace492f2ffd44c239b8d9bb06febe5d0c8ec3573e072e5256b448bf53de2f3e91fe001250609603c84f3da9f8cd1ffa202356fe74e5607e358984c183fa473
SSDEEP

24576:rMjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxo:mJ5gEKNikf3hBfUiWxo

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/0x0010000000023ba3-7.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe

Executes dropped EXE 1 IoCs

pid	Process
4216	budha.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1172-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0010000000023ba3-7.dat	upx
behavioral2/memory/1172-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4216-20-0x0000000000400000-0x000000000040F000-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	5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 4216	1172	5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe	83
PID 1172 wrote to memory of 4216	1172	5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe	83
PID 1172 wrote to memory of 4216	1172	5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe	83

C:\Users\Admin\AppData\Local\Temp\5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe
"C:\Users\Admin\AppData\Local\Temp\5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85bN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- 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:4216

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
995KB

MD5
eed7105906da51d4ed968ddf9797fa90

SHA1
a53b4e1c589a505d8035ec3a0219889c09c3a40d

SHA256
040a755a4a89ee1b5aa0153d0f6357766be78dd9d2894864abdf46864ef32401

SHA512
9f583c7c03a05522ce29bcad7bc596548e7fa26f8b32e93c71f8e7ba701969ecea4852645c34c06668efcd301dfa4f72f109c07cc0c2fe04d68da51e9d70368f

Download Submit
memory/1172-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1172-1-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/1172-3-0x00000000026B0000-0x0000000002AB0000-memory.dmp

Filesize
4.0MB

Download
memory/1172-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4216-13-0x00000000025B0000-0x00000000029B0000-memory.dmp

Filesize
4.0MB

Download
memory/4216-12-0x00000000020A0000-0x00000000020A1000-memory.dmp

Filesize
4KB

Download
memory/4216-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download