flawedammyy | 2d068d78cdb398b0804690ba569695a08bf87dc8e91faa56194d6b6309aa9f97

General

Target

AA_v3.2.exe
Size

722KB
MD5

45c9b54d66cbcc2de89f93e25f368a45
SHA1

2e5265f35f75a50c89e592e127bc80e1e45aa840
SHA256

349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a
SHA512

25c3f1ec6d2e233464090f584777b15f18acfd1cb12124c236680689545ec8208bc364d26d7202e38368dbec34cd824600afb51845df8c9de8c8e83fba8d8b1f
SSDEEP

12288:x2QKNGp2YPjE0d63iVg5Bfi781Rt1hpGqzdpW9eKVQvTPRpsbS5hEgK:xSIp2Ydd6SVcpz1RtXpGadsbShK

Score

10^/10

flawedammyy discovery trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy
Flawedammyy family
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-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\International\Geo\Nation	AA_v3.2.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	AA_v3.2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AA_v3.2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AA_v3.2.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	AA_v3.2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	AA_v3.2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	AA_v3.2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	AA_v3.2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d567366087c695f594c16545357e79d949a78b36b	AA_v3.2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = a38dd5eb504d4387d6d527259a08a4ccc9fdd39ec54e62397f9323b7ca805adf4fb92e5c4f78a5d55b305cd11dc50c1779e59c8766e5c36237ae89742a894f9a927b3792	AA_v3.2.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1544	AA_v3.2.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1544	AA_v3.2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 1544	2396	AA_v3.2.exe	31
PID 2396 wrote to memory of 1544	2396	AA_v3.2.exe	31
PID 2396 wrote to memory of 1544	2396	AA_v3.2.exe	31
PID 2396 wrote to memory of 1544	2396	AA_v3.2.exe	31

C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2552

C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe" -service -lunch
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
  "C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1544

Network

DNS

rl.ammyy.com

AA_v3.2.exe

Remote address:

8.8.8.8:53

Request

rl.ammyy.com

IN A

Response

rl.ammyy.com

IN A

188.42.129.148
POST

http://rl.ammyy.com/

AA_v3.2.exe

Remote address:

188.42.129.148:80

Request

POST / HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: rl.ammyy.com
Content-Length: 183
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Date: Sat, 26 Oct 2024 18:12:42 GMT
Server: Apache
X-Powered-By: PHP/5.4.16
Content-Length: 138
Content-Type: text/html

188.42.129.148:80

http://rl.ammyy.com/

http

AA_v3.2.exe

869 B
446 B
12
4

HTTP Request

POST http://rl.ammyy.com/

HTTP Response

200
136.243.104.235:443

https

AA_v3.2.exe

462 B
299 B
9
7

8.8.8.8:53

rl.ammyy.com

dns

AA_v3.2.exe

58 B
74 B
1
1

DNS Request

rl.ammyy.com

DNS Response

188.42.129.148

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
3b0cc7752410d275357315c8b1976c21

SHA1
f94362169acc2ff2c5021fa86efc973452a12006

SHA256
d1a224f8335e50def11d28e8d2300a7294307b4047433a6b7c5cb4750ac6f718

SHA512
269b6315a3500b67ed8ea117cbd4350e91353db715853f11f26bf8050dd6482fa314f76fe4265996b6bde1466575f875e3a667c560ced657142ae67ce4dd38c9

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
b07a2e2b969c2598f4602d5d3e5ac444

SHA1
a669877546d7d2dbdf5fdb82b1645d4e3c21f8e1

SHA256
d271f1b2d6f4bef0d134edfeebb1a2ff1a701c323df7c66023531ccd3fc99df7

SHA512
e14a0b30056a499e6b289481b7f9dba620ad4d89375e9ab26213293a1758d1493f63529692223420586378007755be742315f8dc83313f6064d3883e64d6896a

Download Submit
C:\ProgramData\AMMYY\settings3.bin

Filesize
270B

MD5
6910d9160b66c4395f587a279e80f132

SHA1
54949c04c8c0970aa5e2d3fb2912318daab97b98

SHA256
72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c

SHA512
82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

HTTP Request

HTTP Response

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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Downloads

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