flawedammyy | 7381951c8c9d2a60ac948f719b54136a951e42a5480bf8dcb8a6b0a44a9dfa37

General

Target

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Size

755KB
MD5

11bc606269a161555431bacf37f7c1e4
SHA1

63c52b0ac68ab7464e2cd777442a5807db9b5383
SHA256

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed
SHA512

0be867fce920d493d2a37f996627bceea87621ba4071ae4383dd4a24748eedf7dc5ca6db089217b82ec38870248c6840f785683bf359d1014c7109e7d46dd90f
SSDEEP

12288:XVFUEuNmwvGrw9i0aTGRGicBckyyFRtWY1i3FTsvOVV0gz:3UEUUw9RaTNicBrPFRtJ1iVTsC5z

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:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\International\Geo\Nation	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Modifies data under HKEY_USERS 6 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c105953272125f6ca64b26b	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 3376bd2e32c755707e9f613fce3ee826d51ba225ff2c7de46bc6d52f9d9f3a2c2966226871ea443247adfe0dad89f4191bd82286c49e0d6b2aaca85a5bb438839a2e7978	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid	Process
2304	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid	Process
2304	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

description	pid	Process	procid_target
PID 1708 wrote to memory of 2304	1708	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	29
PID 1708 wrote to memory of 2304	1708	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	29
PID 1708 wrote to memory of 2304	1708	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	29
PID 1708 wrote to memory of 2304	1708	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	29

C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
"C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe"
1⤵
PID:1860

C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
"C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
  "C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2304

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

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
4c8dc2b5db9f2fc9c7fad4fe865a328c

SHA1
c0b74771ac4992eefe2a590d0c5a0f57c52e2c51

SHA256
674aaf1231b8870e509ec44ad9e23143c60f8b060fec9bdde7ddff5d191a2b0d

SHA512
78d75b29fbb62c9b77d2c1728388cc09a9a3bdf8238075c0b225cee1d410a32722f04daa3e79f99ae0f246adbc8411b48f9ead5b1f2da108f9673650b272cea3

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
13fada067131f49d41d062fd47a6b40d

SHA1
0a6ac41e3b988990fbd28d8d5ac5905412b759c1

SHA256
4042094e484dbd6843206ac23330df08eb23daca96b2fa57df4de6e18823b07f

SHA512
df620ff703cc3923291824c8e061d5ada31ccd2afc962ef5a7d77e9ff333e68e0eb46335157a94786d0c7be77120ce1f49b335a89438ea9852a009555170e4ee

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