Malware Analysis Report

2024-10-16 05:08

Sample ID 241003-ej5j1atcnl
Target 0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118
SHA256 8d6e783c42531ba3a8c823293d399c08f0ef07c007213f40f253aea1ddfc7dfe
Tags
ammyyadmin flawedammyy discovery trojan
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

8d6e783c42531ba3a8c823293d399c08f0ef07c007213f40f253aea1ddfc7dfe

Threat Level: Known bad

The file 0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

ammyyadmin flawedammyy discovery trojan

AmmyyAdmin payload

Ammyyadmin family

FlawedAmmyy RAT

Checks computer location settings

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-03 03:59

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

2024-10-03 03:59

Reported

2024-10-03 04:01

Platform

win7-20240903-en

Max time kernel

150s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

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\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 9850c87bcdf4fb72143997c883e890fbe473b0911ae5f92336cefeba74e58be2589d9bb1c7f7ee63d80bec0a35c844869b8b8a655f034eed142b436c464e236937c5ee3579a9ee88ba19b1 C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d567366087c6658524c175253f73473ad004ab36b C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rl.ammyy.com udp
NL 188.42.129.148:80 rl.ammyy.com tcp
DE 136.243.104.235:443 tcp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 e57a0570fc4baf51499bf05f363705df
SHA1 41653da3b123392ff4d89ff894a4cc160b80e6e9
SHA256 bc9847d6150b46d1fe077f2489c308da53a54c3e003ace56724a721e6e698f75
SHA512 aa3b12aaac6427372043cd6ebeb11d9205ce0e1a20258673b8083f776046a2ddedbacdeca9d993a1959a70d074a46352e69f9ec93ca27ecd403a4e7f81002465

C:\ProgramData\AMMYY\hr

MD5 51e021c0eae872178417e222ce50e927
SHA1 ae19925367964a0fc4f6dcd822dadb755a5d7b3f
SHA256 84c71cefc3d7b5b412d2a8df2303373ae1dbd7b7b1275110c52773fe66a6a4ce
SHA512 9d4a058616b56c541152d5f5411cfeed94c62355750cd3c24de057770fe42b8a11f42dcfdaed1d260efb4f9f132ef038435330ebcd5fda51f4417803a0dde74a

C:\ProgramData\AMMYY\hr3

MD5 fb764bfed802fd42d538e7c076ce5fb5
SHA1 65bae3f2930cb91fc637135f88e89e4730cf4819
SHA256 93c19df4cae330bc7e401fe25436d0cf55db0300a32379cec4ea5f59c2bad69d
SHA512 6d6fcfbb013b9fa4c2bb06031b5a5bb76c4ba3f45e3736c8be1f1e344ecf5b512769ea3f3d36a28ac5212f040bbcccbf29efcc940ab3ed39134a4528fdeb9566

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-03 03:59

Reported

2024-10-03 04:01

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

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\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Ammyy C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d567366087c6658524c175253287a57ad004ab36b C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = b9604cbad1e7573879d6e3309b9724d01889fdb733501e95d8d24567bb5e21d622a941182f35a85084b244e0935c9a7b170f2c5300af3c83c84ff336d610fe89af82e8c4c99f9da59793c6 C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 rl.ammyy.com udp
NL 188.42.129.148:80 rl.ammyy.com tcp
DE 136.243.104.235:443 tcp
US 8.8.8.8:53 235.104.243.136.in-addr.arpa udp
US 8.8.8.8:53 148.129.42.188.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 e57a0570fc4baf51499bf05f363705df
SHA1 41653da3b123392ff4d89ff894a4cc160b80e6e9
SHA256 bc9847d6150b46d1fe077f2489c308da53a54c3e003ace56724a721e6e698f75
SHA512 aa3b12aaac6427372043cd6ebeb11d9205ce0e1a20258673b8083f776046a2ddedbacdeca9d993a1959a70d074a46352e69f9ec93ca27ecd403a4e7f81002465

C:\ProgramData\AMMYY\hr

MD5 8352ac3fd99dfbf88696e82b6a8f9b73
SHA1 3478e9fae1134bdcb746af6f68003d903ed9c230
SHA256 0ae23cb1624774d1a87adab495fbb21a889307bf1e77b7da515fc03bca72a7b2
SHA512 d19df87cc0d7da7e690f2b778d410978fc192b595bd64ec8c0b79fdc360154e70dbc9163fe85ac951fdea4a0ab6deb0a1be8522648878bbb63a7451959cc6151

C:\ProgramData\AMMYY\hr3

MD5 d7b220d30166d66262abf9b7572b4e6e
SHA1 1331b52444d8250a0f6d51ca06780d19dbc7fccb
SHA256 29db91def7c8ec84dc5a0af97b23986ceeb991b56a7fc9a9335bd36a6a4023e1
SHA512 e5fc78a6843962b79c7da1569edaf514d92b9a8757c65d4169b96c6b6c8e6c45fad95052bf782b03d622edfdefbe1d20ffbef827b1790786c9937cae8097028b