ammyyadmin | 0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63

General

Target

0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Size

762KB
MD5

b30ee6928ef5b59be30b5c9f30bb7b9b
SHA1

392aa83957e187bee39933f11c6adccf9dc25cb6
SHA256

0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63
SHA512

7caa832684a24302a6a84304a4c866d4b918205394734257473966c3811ae71f5fce3f7b3548f27180a684d2c5d40958e05cfcc89a11413e5e04530d7f3e3d16
SSDEEP

12288:jX5PFc+E0SlpOvcC1KL/q/IZVURtCdshX5x8jR31QEY0VEoge:dP++ZSlpOUC1KT4+URtYshX5aRlQEYte

Score

10^/10

ammyyadmin flawedammyy discovery rat trojan

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 5 IoCs

resource	yara_rule
behavioral2/memory/2872-0-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral2/memory/808-2-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral2/memory/808-3-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral2/memory/2872-5-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral2/memory/1684-7-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin

Ammyyadmin family
ammyyadmin
FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy
Flawedammyy family
flawedammyy

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.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	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 7d421c1816dccbc532b057389971ee6fe7b1a336b5cb44559e73659adbcb2bef3340f47abdae33cf7fc5480bfa46cefb242d91b4eeb740d5d20ac22c4acec6873dd2fef8e44205596d1b6b	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1684	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1684	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 1684	808	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	83
PID 808 wrote to memory of 1684	808	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	83
PID 808 wrote to memory of 1684	808	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	83

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2872

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe" -service -lunch
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
  "C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\settings3.bin

Filesize
274B

MD5
bcc40b676c5b0f5a176be92cc8f4199f

SHA1
5415364e6ab90151eb1272268cb75ef6c4306a2f

SHA256
d3df407118bd28d28e7d3c8afc497c5e478e5d078f7792501ddecb45f3b51826

SHA512
467c473be5b9f6e0b8302620b6fbd9ad84f90da2bae3247d8326a22bfdd902fd79e55a2160493903eb747db6ef38fc9decb3db372afa26667f374ca2d0ceb36d

Download Submit
memory/808-2-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/808-3-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1684-7-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2872-0-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2872-5-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download

Analysis

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