Malware Analysis Report

2025-01-23 12:21

Sample ID 241227-3ya6psskgs
Target 85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2
SHA256 85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2
Tags
ammyyadmin discovery rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2

Threat Level: Known bad

The file 85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2 was found to be: Known bad.

Malicious Activity Summary

ammyyadmin discovery rat

AmmyyAdmin payload

Ammyyadmin family

Ammyy Admin

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-27 23:54

Signatures

AmmyyAdmin payload

Description Indicator Process Target
N/A N/A N/A N/A

Ammyyadmin family

ammyyadmin

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-27 23:54

Reported

2024-12-27 23:57

Platform

win7-20240729-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe"

Signatures

Ammyy Admin

rat ammyyadmin

AmmyyAdmin payload

Description Indicator Process Target
N/A N/A N/A N/A

Ammyyadmin family

ammyyadmin

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\budha.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\budha.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe

"C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe"

C:\Users\Admin\AppData\Local\Temp\budha.exe

"C:\Users\Admin\AppData\Local\Temp\budha.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 maitikio.com udp
US 8.8.8.8:53 cry-havok.org udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp

Files

memory/2188-0-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2188-1-0x0000000001E20000-0x0000000001E21000-memory.dmp

memory/2188-4-0x00000000032E0000-0x00000000036E0000-memory.dmp

memory/2188-7-0x0000000003C80000-0x0000000003C8A000-memory.dmp

\Users\Admin\AppData\Local\Temp\budha.exe

MD5 bd646fed0926e03d74a831a433485caf
SHA1 311551923c770e92c595714824a790b49f3fa0bb
SHA256 24b84f60e054fea244b1a84f2f38243b2c37282cea363c0b8b7966c0e4148e92
SHA512 d82b74af731b7c73870987337856a056226a728ebe88af355dabc7b85c369a7fb18cfcfe5c9119145240be27f08589b96accab9a6a14868167fbecda223b44ad

memory/2688-12-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2188-11-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2688-13-0x0000000001E00000-0x0000000001E01000-memory.dmp

memory/2688-15-0x00000000032C0000-0x00000000036C0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab3FEF.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar4002.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/2688-50-0x0000000000400000-0x000000000040A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-27 23:54

Reported

2024-12-27 23:57

Platform

win10v2004-20241007-en

Max time kernel

145s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe"

Signatures

Ammyy Admin

rat ammyyadmin

AmmyyAdmin payload

Description Indicator Process Target
N/A N/A N/A N/A

Ammyyadmin family

ammyyadmin

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\budha.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\budha.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe

"C:\Users\Admin\AppData\Local\Temp\85e6db3894fb7651e76abb0671ef73cf79bc84d6b3822a4ea4f4383212353bc2.exe"

C:\Users\Admin\AppData\Local\Temp\budha.exe

"C:\Users\Admin\AppData\Local\Temp\budha.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 maitikio.com udp
US 8.8.8.8:53 cry-havok.org udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 33.148.197.15.in-addr.arpa udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 8.8.8.8:53 maitikio.com udp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp
US 15.197.148.33:443 cry-havok.org tcp

Files

memory/3460-0-0x0000000000400000-0x000000000040A000-memory.dmp

memory/3460-1-0x00000000021C0000-0x00000000021C1000-memory.dmp

memory/3460-3-0x0000000002710000-0x0000000002B10000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\budha.exe

MD5 bd646fed0926e03d74a831a433485caf
SHA1 311551923c770e92c595714824a790b49f3fa0bb
SHA256 24b84f60e054fea244b1a84f2f38243b2c37282cea363c0b8b7966c0e4148e92
SHA512 d82b74af731b7c73870987337856a056226a728ebe88af355dabc7b85c369a7fb18cfcfe5c9119145240be27f08589b96accab9a6a14868167fbecda223b44ad

memory/3460-12-0x0000000000400000-0x000000000040A000-memory.dmp

memory/1348-13-0x00000000022D0000-0x00000000022D1000-memory.dmp

memory/1348-14-0x0000000002620000-0x0000000002A20000-memory.dmp

memory/1348-21-0x0000000000400000-0x000000000040A000-memory.dmp