ammyyadmin | 5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 13:07

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General

Target

HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.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/0x0008000000023c90-7.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe

Executes dropped EXE 1 IoCs

pid	Process
2476	budha.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4800-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0008000000023c90-7.dat	upx
behavioral2/memory/4800-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/2476-21-0x0000000000400000-0x000000000040F000-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	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 2476	4800	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	83
PID 4800 wrote to memory of 2476	4800	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	83
PID 4800 wrote to memory of 2476	4800	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	83

C:\Users\Admin\AppData\Local\Temp\HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe
"C:\Users\Admin\AppData\Local\Temp\HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- 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:2476

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
995KB

MD5
d1841f9107a3abc0dbe6c1862e5ac02e

SHA1
30df3426af73199db367818dcaf7d90f7a31147d

SHA256
cfec32381215f3f8ed85d5bac2fe054f03029c204d6b6eb9a68561f8a2280b82

SHA512
11e26bd298daaa242229d0b45327aea24b0243d24e2f6c21c94d09fd481ed2c02ede2060554cad34c9dab719045866d09d7c0c5620ba60261c7bdca6416d5e1e

Download Submit
memory/2476-14-0x00000000025F0000-0x00000000029F0000-memory.dmp

Filesize
4.0MB

Download
memory/2476-13-0x00000000021A0000-0x00000000021A1000-memory.dmp

Filesize
4KB

Download
memory/2476-21-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4800-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4800-1-0x00000000008F0000-0x00000000008F1000-memory.dmp

Filesize
4KB

Download
memory/4800-3-0x0000000002590000-0x0000000002990000-memory.dmp

Filesize
4.0MB

Download
memory/4800-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download