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 4 IoCs

resource	yara_rule
behavioral1/memory/2536-0-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral1/memory/1640-3-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral1/memory/2536-4-0x0000000000400000-0x00000000004D5000-memory.dmp	family_ammyyadmin
behavioral1/memory/2068-6-0x0000000000400000-0x00000000004D5000-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

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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation	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 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	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
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 07e3d7760fdf70ff545e4c5532cce14b15b8d8cbbf00395c4d77677ffdff5ca6f33a730b63a77a07ad31903e7922cf5414d5026af75fa68c3dc78b249fad1c492483f463c2ceec9090b7ba	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2068	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2068	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2068	1640	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	31
PID 1640 wrote to memory of 2068	1640	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	31
PID 1640 wrote to memory of 2068	1640	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	31
PID 1640 wrote to memory of 2068	1640	0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe	31

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2536

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:1640
- C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe
  "C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2068

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

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/1640-3-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2068-6-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2536-0-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2536-4-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download

Analysis

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