Malware Analysis Report

2024-10-16 05:08

Sample ID 240829-mhz7wswgpd
Target c8a5093d7690d7479ce18812a2135abc_JaffaCakes118
SHA256 606a327219e54ed3e2b4bb751bce95f0af811f2cf7be007cbd4c12650b3df3c5
Tags
flawedammyy discovery trojan ammyyadmin
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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

606a327219e54ed3e2b4bb751bce95f0af811f2cf7be007cbd4c12650b3df3c5

Threat Level: Known bad

The file c8a5093d7690d7479ce18812a2135abc_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

flawedammyy discovery trojan ammyyadmin

AmmyyAdmin payload

Ammyyadmin family

FlawedAmmyy RAT

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 10:28

Signatures

AmmyyAdmin payload

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

Analysis: behavioral3

Detonation Overview

Submitted

2024-08-29 10:28

Reported

2024-08-29 10:31

Platform

win7-20240708-en

Max time kernel

100s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\AA\AA_v3.9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

Network

N/A

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 f3e0483a8464f992bb730a42ff646e98
SHA1 2cf672c1cc8c35a022e4a9c0a0aff871cd85d6ed
SHA256 2cf414995b143d509e309d4845b0bf87e86bf9b6fbfd3cda3943e3d53d5aa6b3
SHA512 7ea33e0a811451e81034aee8d8e6094ccb54e02231626389d8a8121afa0240f1db3ea8b06cf768238abf4f7d77d46f9a1ae0ba826a1933dd6f5971c6103940ce

Analysis: behavioral4

Detonation Overview

Submitted

2024-08-29 10:28

Reported

2024-08-29 10:31

Platform

win10v2004-20240802-en

Max time kernel

116s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\AA\AA_v3.9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe

"C:\Users\Admin\AppData\Local\Temp\AA\AA_v3.9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 f3e0483a8464f992bb730a42ff646e98
SHA1 2cf672c1cc8c35a022e4a9c0a0aff871cd85d6ed
SHA256 2cf414995b143d509e309d4845b0bf87e86bf9b6fbfd3cda3943e3d53d5aa6b3
SHA512 7ea33e0a811451e81034aee8d8e6094ccb54e02231626389d8a8121afa0240f1db3ea8b06cf768238abf4f7d77d46f9a1ae0ba826a1933dd6f5971c6103940ce

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 10:28

Reported

2024-08-29 10:31

Platform

win7-20240729-en

Max time kernel

100s

Max time network

17s

Command Line

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

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\AA\AA.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Processes

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

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

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

"C:\Users\Admin\AppData\Local\Temp\AA\AA.exe" -service -lunch

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

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

Network

N/A

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 f3e0483a8464f992bb730a42ff646e98
SHA1 2cf672c1cc8c35a022e4a9c0a0aff871cd85d6ed
SHA256 2cf414995b143d509e309d4845b0bf87e86bf9b6fbfd3cda3943e3d53d5aa6b3
SHA512 7ea33e0a811451e81034aee8d8e6094ccb54e02231626389d8a8121afa0240f1db3ea8b06cf768238abf4f7d77d46f9a1ae0ba826a1933dd6f5971c6103940ce

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 10:28

Reported

2024-08-29 10:31

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

134s

Command Line

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

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\AA\AA.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AA\AA.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4428 wrote to memory of 3152 N/A C:\Users\Admin\AppData\Local\Temp\AA\AA.exe C:\Users\Admin\AppData\Local\Temp\AA\AA.exe
PID 4428 wrote to memory of 3152 N/A C:\Users\Admin\AppData\Local\Temp\AA\AA.exe C:\Users\Admin\AppData\Local\Temp\AA\AA.exe
PID 4428 wrote to memory of 3152 N/A C:\Users\Admin\AppData\Local\Temp\AA\AA.exe C:\Users\Admin\AppData\Local\Temp\AA\AA.exe

Processes

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

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

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

"C:\Users\Admin\AppData\Local\Temp\AA\AA.exe" -service -lunch

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 f3e0483a8464f992bb730a42ff646e98
SHA1 2cf672c1cc8c35a022e4a9c0a0aff871cd85d6ed
SHA256 2cf414995b143d509e309d4845b0bf87e86bf9b6fbfd3cda3943e3d53d5aa6b3
SHA512 7ea33e0a811451e81034aee8d8e6094ccb54e02231626389d8a8121afa0240f1db3ea8b06cf768238abf4f7d77d46f9a1ae0ba826a1933dd6f5971c6103940ce