ammyyadmin | afde3e86b1c480c1a2445978cec52c7a0174bf39c77384aa778eefb279b60ad6

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 03:29

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General

Target

450ffb3790bbaea8cc1179c5e33d84b0N.exe
Size

955KB
MD5

450ffb3790bbaea8cc1179c5e33d84b0
SHA1

65adb26271fd7862684250ad492d00969b75aed0
SHA256

afde3e86b1c480c1a2445978cec52c7a0174bf39c77384aa778eefb279b60ad6
SHA512

c63803a4d84a74c930cd905078ba54ad95156f506b2f68338ac19797d0c9ca7d9620c6ce807a19233fe24bc93e6bd7e7de9075659a13a729454599eeb8328426
SSDEEP

24576:rMjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxa:mJ5gEKNikf3hBfUiWxa

Score

10^/10

ammyyadmin discovery rat upx

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 1 IoCs

Processes:

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

Processes:

450ffb3790bbaea8cc1179c5e33d84b0N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	450ffb3790bbaea8cc1179c5e33d84b0N.exe

Executes dropped EXE 1 IoCs

Processes:

budha.exe

pid process

3700 budha.exe

pid	process
3700	budha.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4404-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\budha.exe	upx
behavioral2/memory/3700-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4404-13-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3700-22-0x0000000000400000-0x000000000040F000-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

Processes:

450ffb3790bbaea8cc1179c5e33d84b0N.exebudha.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	450ffb3790bbaea8cc1179c5e33d84b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

450ffb3790bbaea8cc1179c5e33d84b0N.exe

description	pid	process	target process
PID 4404 wrote to memory of 3700	4404	450ffb3790bbaea8cc1179c5e33d84b0N.exe	budha.exe
PID 4404 wrote to memory of 3700	4404	450ffb3790bbaea8cc1179c5e33d84b0N.exe	budha.exe
PID 4404 wrote to memory of 3700	4404	450ffb3790bbaea8cc1179c5e33d84b0N.exe	budha.exe

C:\Users\Admin\AppData\Local\Temp\450ffb3790bbaea8cc1179c5e33d84b0N.exe
"C:\Users\Admin\AppData\Local\Temp\450ffb3790bbaea8cc1179c5e33d84b0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4404

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:3700

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
955KB

MD5
3cd69e3803112f957ba3646a4c5d82e3

SHA1
0730e73fe38f499f2aba3b5ba95c1a0b801c474b

SHA256
65451e922dd867b0f2fe2ee056d3166d8b519b68a82d301acccb98f49ba4e412

SHA512
bb39fd81bc563c2a96db7da79752ea5e4ef5b06a33559966624920f885c2ac70781c54b0422484fb65ae4dd7b5ceb2f2a7c9c53f2695812b93edfcff6d22b9fa

Download Submit
memory/3700-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3700-14-0x0000000000590000-0x0000000000591000-memory.dmp

Filesize
4KB

Download
memory/3700-15-0x00000000025B0000-0x00000000029B0000-memory.dmp

Filesize
4.0MB

Download
memory/3700-22-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4404-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4404-1-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/4404-3-0x00000000026E0000-0x0000000002AE0000-memory.dmp

Filesize
4.0MB

Download
memory/4404-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download