flawedammyy | a49aabe032039ef2896901d91d75c4de5e23a08af8570c92bab70c3a520cd136

General

Target

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Size

751KB
MD5

4d853025b8cd8c725bf78e3df6cce967
SHA1

c6bff7857fdf33cbd8f052ef5d669675e5cf06f8
SHA256

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8
SHA512

977e43eaa763cc66114e00a615818c66a84a5a47bac1cdf21eff9f8f1dcebf138d8ede823265a2f30807d648c57bf036818254964358691d3f9a013f930705cf
SSDEEP

12288:Tc0dZib4t9uOroAgUHvCUt4RtlTc+YNKpQsNvVd1gF:Tc/UtwOrZgUHv54Rt6+YNkQsNmF

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

Processes:

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Control Panel\International\Geo\Nation	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

Modifies data under HKEY_USERS 7 IoCs

Processes:

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796e5f5e4c10595357a086493a7bb26b	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = a354936cd983272569d6e3309be7197ee8666197c39b238b2f5e56e16e30012599f6cf5064c3923dbbace269d8ebbc57f2c615034b115e0d1c9adb68851164de5dcb1b3c	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

pid process

2968 4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

pid process

2968 4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

pid	process
2968	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

pid	process
2968	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

description	pid	process	target process
PID 2932 wrote to memory of 2968	2932	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
PID 2932 wrote to memory of 2968	2932	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
PID 2932 wrote to memory of 2968	2932	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
PID 2932 wrote to memory of 2968	2932	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe	4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe

C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
"C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe"
1⤵
PID:2880

C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
"C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe
  "C:\Users\Admin\AppData\Local\Temp\4f648c95b8c832742b8b43f4e70689d0ef0328841744858c75d0a4e98fda5ff8.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2968

Network

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
57f85bcfac4e8a1396e94e405d2ed844

SHA1
8161322daedc73662192632e051560095bdacd7e

SHA256
6a927cd089f3af580c2f7b6810d492ba2a7fa70e273714fc0350cea9244f4143

SHA512
6662b277c6bfe5984e25256b7c3cf13eda55b191f3c36bf88c4f7b30df56940b6a9817fcb44a0afc4b54082b3100100101931eaf1e34345f56a355772bff4f95

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
d50ffe516e93ed7a5634eccfdbaafe0e

SHA1
8c75f85eb5c6a4227ea2f82b20a7f2dca49e1170

SHA256
d0e262d92635ad92b9febd3e2412ef77d4d192ce031467e90521259f6fe4e56f

SHA512
533dc71ef770d21c713628abfbf17e9620b7626ef45c0392241ef83c0919c2f7867f68c862842a750fda9d2ea8d4d9bfed47811faca5eccfafcc6da04c910b73

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

Filesize
271B

MD5
714f2508d4227f74b6adacfef73815d8

SHA1
a35c8a796e4453c0c09d011284b806d25bdad04c

SHA256
a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

SHA512
1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads