flawedammyy | 89fc5056c741faef49c38de26bea0c307700df140469ad646ae02df26f1d4588

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-1-5-21-3618187007-3650799920-3290345941-1000\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	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c105953e7e1aeff217bb26b	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 90efc0ff547072c67d3b71518cf1a555ea3cecb630aaa79449b04fd707c4b4a3baec3a19c87668b6e93af60c01eabf768126198f4caafa4a70d426a70f18d31fcd1b8050	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid process

2920 1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid process

2920 1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid	process
2920	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

pid	process
2920	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

description	pid	process	target process
PID 2444 wrote to memory of 2920	2444	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
PID 2444 wrote to memory of 2920	2444	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
PID 2444 wrote to memory of 2920	2444	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
PID 2444 wrote to memory of 2920	2444	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe	1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe

C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
"C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe"
1⤵
PID:1696

C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe
"C:\Users\Admin\AppData\Local\Temp\1831806fc27d496f0f9dcfd8402724189deaeb5f8bcf0118f3d6484d0bdee9ed.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2444
- 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:2920

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
9a1c21a669efb6b6c9a96272583b196f

SHA1
bdb9ee80ef7b09f46b848dce70a5111155a1959b

SHA256
0a45777b125386c4a6ee266e77c8726a3aa81405c000d639d564e935c4186012

SHA512
36a65e025f5b4b525489252a542eab5bf97e98c9673dfd790659e8cdc310cf66ab0a90c565b101d59226f5da755217ff21b7052731f6f0357f99a9ac34b79608

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
4d2acc4bbe724fb6638a2504c6d4be02

SHA1
f2a403ea30b6ca2546e93e637da9b230597eb07e

SHA256
2569602d77bb276a61f49e4315209e7d535d536ce9c7bb0312d41d4fdf82130f

SHA512
73af0d792422b1a3defeae568040ade23bbff42a015b745c3497f2f82cb734cc7cccf89ff5ad3998cd77f68df678aa51979e62022259d2c223980d5624173d7c

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