ammyyadmin | e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0f

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 18:48

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General

Target

e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe
Size

1013KB
MD5

be03b997f660838862b79d46a8057b90
SHA1

1a35579d883ff4fa46bac552d656f914b35a0238
SHA256

e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0f
SHA512

37837d2ad934d6ebfec69e91e5c4ab97222564f82cbc0a935e54cd74bd0d5ebc4fed9d144d5bca5b784e0612abe502870b55cdf1a81a4ba47db22ccc84b0d2a1
SSDEEP

24576:+MjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsx4:7J5gEKNikf3hBfUiWx4

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/0x0008000000023c89-7.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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe

Executes dropped EXE 1 IoCs

pid	Process
4476	budha.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/372-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x0008000000023c89-7.dat	upx
behavioral2/memory/372-11-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/4476-20-0x0000000000400000-0x0000000000410000-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	e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 4476	372	e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe	88
PID 372 wrote to memory of 4476	372	e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe	88
PID 372 wrote to memory of 4476	372	e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe	88

C:\Users\Admin\AppData\Local\Temp\e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe
"C:\Users\Admin\AppData\Local\Temp\e767b18f53a8ddbcbbe1b105a6e258099dce097b0de621c017270767aa7efe0fN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:372
- 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:4476

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
071013a2c6dd643793025b10f964cdf2

SHA1
b2b20e7d2ddc209e2b9a5ffb21246c1a11863be2

SHA256
e10f5c17f7ad620d6603d570260f412f0c14dd4e9222950a6642535faac009ac

SHA512
8585985c4625e1405df186308cd78a7d491c61375cdf4dbc4c1990489a006781bd3cea7c1da4db74f8bd0cfb13ee0d7004b196410574de5196dab2d4d072ad83

Download Submit
memory/372-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/372-1-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/372-3-0x00000000025A0000-0x00000000029A0000-memory.dmp

Filesize
4.0MB

Download
memory/372-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4476-12-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/4476-13-0x0000000002610000-0x0000000002A10000-memory.dmp

Filesize
4.0MB

Download
memory/4476-20-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download