flawedammyy | 480db250da8cbb3234c64ce8d30e119addb3f2e515332a1da113d9e7b12142fd

General

Target

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
Size

762KB
MD5

e9b569f7cbf23d91df065c18f4c43840
SHA1

5d7cb1a2ca7db04edf23dd3ed41125c8c867b0ad
SHA256

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605
SHA512

a9f01663b0c0ce9d30bd6760847bf3c18318801634145ec75e047019a8e8a9b13ea8122449b8f45ad40b63d4551cb85230df1b41a41ddc33a39cfcf2ec237ccb
SSDEEP

12288:kX5PFc+E0SlpOvcC1KL/q/IZVURtCdshX5x8jR31QEY0VEoge:2P++ZSlpOUC1KT4+URtYshX5aRlQEYte

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-1-5-21-1861898231-3446828954-4278112889-1000\Control Panel\International\Geo\Nation	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 146bf89741ddcbc532b05738993014f4b822e1f734eaa944abbb81098eacca0442f5a060c2f7c1a79929996463b343a36db920f1f45f288f21271414419ff73c25243d24	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2928	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2928	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 2928	1016	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe	29
PID 1016 wrote to memory of 2928	1016	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe	29
PID 1016 wrote to memory of 2928	1016	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe	29
PID 1016 wrote to memory of 2928	1016	d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe	29

C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
"C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe"
1⤵
PID:1920

C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
"C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe
  "C:\Users\Admin\AppData\Local\Temp\d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2928

Network

DNS

rl.ammyy.com

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.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/

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.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: 204
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Date: Fri, 01 Dec 2023 15:23:54 GMT
Server: Apache
X-Powered-By: PHP/5.4.16
Content-Length: 136
Content-Type: text/html

188.42.129.148:80

http://rl.ammyy.com/

http

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

890 B
764 B
12
5

HTTP Request

POST http://rl.ammyy.com/

HTTP Response

200
136.243.104.242:443

https

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.exe

416 B
299 B
8
7

8.8.8.8:53

rl.ammyy.com

dns

d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605.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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\AMMYY\settings3.bin

Filesize
274B

MD5
bcc40b676c5b0f5a176be92cc8f4199f

SHA1
5415364e6ab90151eb1272268cb75ef6c4306a2f

SHA256
d3df407118bd28d28e7d3c8afc497c5e478e5d078f7792501ddecb45f3b51826

SHA512
467c473be5b9f6e0b8302620b6fbd9ad84f90da2bae3247d8326a22bfdd902fd79e55a2160493903eb747db6ef38fc9decb3db372afa26667f374ca2d0ceb36d

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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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