flawedammyy | 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a

Analysis

max time kernel
139s
max time network
142s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11-01-2024 20:23

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General

Target

AAv3exe.exe
Size

722KB
MD5

45c9b54d66cbcc2de89f93e25f368a45
SHA1

2e5265f35f75a50c89e592e127bc80e1e45aa840
SHA256

349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a
SHA512

25c3f1ec6d2e233464090f584777b15f18acfd1cb12124c236680689545ec8208bc364d26d7202e38368dbec34cd824600afb51845df8c9de8c8e83fba8d8b1f
SSDEEP

12288:x2QKNGp2YPjE0d63iVg5Bfi781Rt1hpGqzdpW9eKVQvTPRpsbS5hEgK:xSIp2Ydd6SVcpz1RtXpGadsbShK

Score

10^/10

flawedammyy trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy

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-1-5-21-3470981204-343661084-3367201002-1000\Control Panel\International\Geo\Nation	AAv3exe.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	AAv3exe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c1059534703c423841bb26b	AAv3exe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 05a6486280e70be3b543bf60ff2fb9b09872cb5a4b84c2d06437709b5aea625db01c449e9fe9349a67d34f271f16cad1fb89c41c9f6fa080bc6c0d7aa6d998a90b7f67c0	AAv3exe.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2372	AAv3exe.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2372	AAv3exe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2372	2044	AAv3exe.exe	28
PID 2044 wrote to memory of 2372	2044	AAv3exe.exe	28
PID 2044 wrote to memory of 2372	2044	AAv3exe.exe	28
PID 2044 wrote to memory of 2372	2044	AAv3exe.exe	28

C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
"C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe"
1⤵
PID:2220

C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
"C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe"
1⤵
- Checks computer location settings
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2372

C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
"C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2044

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\settings3.bin

Filesize
270B

MD5
6910d9160b66c4395f587a279e80f132

SHA1
54949c04c8c0970aa5e2d3fb2912318daab97b98

SHA256
72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c

SHA512
82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9

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