Malware Analysis Report

2024-10-18 23:06

Sample ID 240725-qffx1stcjc
Target 6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118
SHA256 c07f15819827de8e1cf64cc7cb1fb8a65a48ff883b31c941d2a757c6e2b87f2e
Tags
ardamax discovery keylogger persistence stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c07f15819827de8e1cf64cc7cb1fb8a65a48ff883b31c941d2a757c6e2b87f2e

Threat Level: Known bad

The file 6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

ardamax discovery keylogger persistence stealer

Ardamax

Ardamax main executable

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Checks installed software on the system

Adds Run key to start application

Drops file in System32 directory

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 13:12

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 13:11

Reported

2024-07-25 13:14

Platform

win10v2004-20240709-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\EWR Start = "C:\\Windows\\SysWOW64\\ESWLLF\\EWR.exe" C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\ESWLLF\EWR.exe C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ESWLLF\ C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.004 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.001 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.002 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.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\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe"

C:\Windows\SysWOW64\ESWLLF\EWR.exe

"C:\Windows\system32\ESWLLF\EWR.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

C:\Windows\SysWOW64\ESWLLF\EWR.exe

MD5 3cd29c0df98a7aeb69a9692843ca3edb
SHA1 7c86aea093f1979d18901bd1b89a2b02a60ac3e2
SHA256 5a37cd66508fa3fc85ae547de3498e709bd45167cb57f5e9b271dc3a1cb71a32
SHA512 e78f3206b1878e8db1766d4038a375bbebcbcdb8d1b0a0cb9b0dc72c54881392b9c27e2864ad9118702da58f203f13e0ad5d230980ad1ef2370391a2c4acffc9

C:\Windows\SysWOW64\ESWLLF\EWR.001

MD5 383d5f5d4240d590e7dec3f7312a4ac7
SHA1 f6bcade8d37afb80cf52a89b3e84683f4643fbce
SHA256 7e87f6817b17a75106d34ce9884c40ddfb381bf8f2013930916498d1df0a6422
SHA512 e652c41ec95d653940b869426bc2cbd8e5b3159110ffaab7d623e23eebe1f34ca65be6a9a9cdcd5f41aec7567469d6b4d6362d24ae92267cddb8940e1265806a

C:\Windows\SysWOW64\ESWLLF\EWR.004

MD5 66bbf944b02137c9cab620bab5f6d1de
SHA1 60f3a28e6779a754886694ed02c2a6ba4875f1e7
SHA256 30d4b6ca4a7226ec15d23b34296ab51244ff1633f9db0dbee4708e59661f032b
SHA512 c5f8aa61946f5da93777d22af4ac01eaddc70a6c0e368ec9f14df7a99f1a94253d53eddb2b499fc35987126925989b280a1bfae4bd1fc6b123f985042011560f

C:\Windows\SysWOW64\ESWLLF\EWR.002

MD5 93df156c4bd9d7341f4c4a4847616a69
SHA1 c7663b32c3c8e247bc16b51aff87b45484652dc1
SHA256 e55b6eabf0f99b90bd4cf3777c25813bded7b6fc5c9955188c8aa5224d299c3e
SHA512 ed2e98c5fd1f0d49e5bac8baa515d489c89f8d42772ae05e4b7a32da8f06d511adad27867034ca0865beae9f78223e95c7d0f826154fc663f2fab9bd61e36e35

memory/468-14-0x0000000000760000-0x0000000000761000-memory.dmp

memory/468-16-0x0000000000760000-0x0000000000761000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 13:11

Reported

2024-07-25 13:14

Platform

win7-20240705-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\EWR Start = "C:\\Windows\\SysWOW64\\ESWLLF\\EWR.exe" C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\ESWLLF\EWR.002 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.exe C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ESWLLF\ C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.004 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ESWLLF\EWR.001 C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.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\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A
N/A N/A C:\Windows\SysWOW64\ESWLLF\EWR.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb6c1a158124bf1821dc9b7680f4903_JaffaCakes118.exe"

C:\Windows\SysWOW64\ESWLLF\EWR.exe

"C:\Windows\system32\ESWLLF\EWR.exe"

Network

N/A

Files

C:\Windows\SysWOW64\ESWLLF\EWR.exe

MD5 3cd29c0df98a7aeb69a9692843ca3edb
SHA1 7c86aea093f1979d18901bd1b89a2b02a60ac3e2
SHA256 5a37cd66508fa3fc85ae547de3498e709bd45167cb57f5e9b271dc3a1cb71a32
SHA512 e78f3206b1878e8db1766d4038a375bbebcbcdb8d1b0a0cb9b0dc72c54881392b9c27e2864ad9118702da58f203f13e0ad5d230980ad1ef2370391a2c4acffc9

C:\Windows\SysWOW64\ESWLLF\EWR.004

MD5 66bbf944b02137c9cab620bab5f6d1de
SHA1 60f3a28e6779a754886694ed02c2a6ba4875f1e7
SHA256 30d4b6ca4a7226ec15d23b34296ab51244ff1633f9db0dbee4708e59661f032b
SHA512 c5f8aa61946f5da93777d22af4ac01eaddc70a6c0e368ec9f14df7a99f1a94253d53eddb2b499fc35987126925989b280a1bfae4bd1fc6b123f985042011560f

\Windows\SysWOW64\ESWLLF\EWR.001

MD5 383d5f5d4240d590e7dec3f7312a4ac7
SHA1 f6bcade8d37afb80cf52a89b3e84683f4643fbce
SHA256 7e87f6817b17a75106d34ce9884c40ddfb381bf8f2013930916498d1df0a6422
SHA512 e652c41ec95d653940b869426bc2cbd8e5b3159110ffaab7d623e23eebe1f34ca65be6a9a9cdcd5f41aec7567469d6b4d6362d24ae92267cddb8940e1265806a

memory/2928-13-0x0000000000230000-0x0000000000231000-memory.dmp

C:\Windows\SysWOW64\ESWLLF\EWR.002

MD5 93df156c4bd9d7341f4c4a4847616a69
SHA1 c7663b32c3c8e247bc16b51aff87b45484652dc1
SHA256 e55b6eabf0f99b90bd4cf3777c25813bded7b6fc5c9955188c8aa5224d299c3e
SHA512 ed2e98c5fd1f0d49e5bac8baa515d489c89f8d42772ae05e4b7a32da8f06d511adad27867034ca0865beae9f78223e95c7d0f826154fc663f2fab9bd61e36e35

memory/2928-15-0x0000000000230000-0x0000000000231000-memory.dmp