Malware Analysis Report

2025-01-03 09:11

Sample ID 240620-mrw7laxclr
Target 053dfc6a10328c0117884af463ebc4bf_JaffaCakes118
SHA256 9f782afb91dd86b1ed2f226a32cdb7092a628f4a16bdeabc3a5c1b05a70696b1
Tags
bootkit persistence
score
7/10

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
7/10

SHA256

9f782afb91dd86b1ed2f226a32cdb7092a628f4a16bdeabc3a5c1b05a70696b1

Threat Level: Shows suspicious behavior

The file 053dfc6a10328c0117884af463ebc4bf_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Executes dropped EXE

Writes to the Master Boot Record (MBR)

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 10:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 10:42

Reported

2024-06-20 10:45

Platform

win7-20240221-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\system\ufo C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A
File opened for modification C:\Windows\system\ufo C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe"

Network

N/A

Files

memory/2088-0-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/2088-42-0x00000000025C0000-0x00000000025C1000-memory.dmp

memory/2088-47-0x00000000025F0000-0x00000000025F1000-memory.dmp

memory/2088-46-0x0000000002600000-0x0000000002601000-memory.dmp

memory/2088-45-0x0000000002610000-0x0000000002611000-memory.dmp

memory/2088-44-0x0000000002620000-0x0000000002621000-memory.dmp

memory/2088-43-0x00000000025E0000-0x00000000025E1000-memory.dmp

memory/2088-41-0x00000000025D0000-0x00000000025D1000-memory.dmp

memory/2088-56-0x00000000026A0000-0x00000000026A1000-memory.dmp

memory/2088-77-0x0000000003650000-0x0000000003651000-memory.dmp

memory/2088-76-0x0000000003660000-0x0000000003661000-memory.dmp

memory/2088-75-0x0000000003630000-0x0000000003631000-memory.dmp

memory/2088-74-0x0000000003640000-0x0000000003641000-memory.dmp

memory/2088-73-0x0000000003610000-0x0000000003611000-memory.dmp

memory/2088-72-0x0000000003620000-0x0000000003621000-memory.dmp

memory/2088-71-0x00000000035F0000-0x00000000035F1000-memory.dmp

memory/2088-70-0x0000000003600000-0x0000000003601000-memory.dmp

memory/2088-69-0x00000000035D0000-0x00000000035D1000-memory.dmp

memory/2088-68-0x00000000035E0000-0x00000000035E1000-memory.dmp

memory/2088-67-0x00000000035B0000-0x00000000035B1000-memory.dmp

memory/2088-66-0x00000000035C0000-0x00000000035C1000-memory.dmp

memory/2088-65-0x0000000003590000-0x0000000003591000-memory.dmp

memory/2088-64-0x00000000035A0000-0x00000000035A1000-memory.dmp

memory/2088-63-0x0000000002730000-0x0000000002731000-memory.dmp

memory/2088-62-0x0000000003580000-0x0000000003581000-memory.dmp

memory/2088-61-0x0000000002710000-0x0000000002711000-memory.dmp

memory/2088-60-0x0000000002720000-0x0000000002721000-memory.dmp

memory/2088-59-0x00000000026F0000-0x00000000026F1000-memory.dmp

memory/2088-58-0x0000000002700000-0x0000000002701000-memory.dmp

memory/2088-57-0x0000000002690000-0x0000000002691000-memory.dmp

memory/2088-55-0x0000000002670000-0x0000000002671000-memory.dmp

memory/2088-54-0x0000000002680000-0x0000000002681000-memory.dmp

memory/2088-53-0x0000000002650000-0x0000000002651000-memory.dmp

memory/2088-52-0x0000000002660000-0x0000000002661000-memory.dmp

memory/2088-51-0x0000000002630000-0x0000000002631000-memory.dmp

memory/2088-50-0x0000000002640000-0x0000000002641000-memory.dmp

memory/2088-40-0x00000000025A0000-0x00000000025A1000-memory.dmp

memory/2088-39-0x00000000025B0000-0x00000000025B1000-memory.dmp

memory/2088-38-0x0000000002580000-0x0000000002581000-memory.dmp

memory/2088-37-0x0000000002590000-0x0000000002591000-memory.dmp

memory/2088-36-0x0000000002560000-0x0000000002561000-memory.dmp

memory/2088-35-0x0000000002570000-0x0000000002571000-memory.dmp

memory/2088-34-0x0000000002540000-0x0000000002541000-memory.dmp

memory/2088-33-0x0000000002550000-0x0000000002551000-memory.dmp

memory/2088-32-0x0000000002520000-0x0000000002521000-memory.dmp

memory/2088-31-0x0000000002530000-0x0000000002531000-memory.dmp

memory/2088-30-0x0000000002400000-0x0000000002401000-memory.dmp

memory/2088-29-0x0000000002410000-0x0000000002411000-memory.dmp

memory/2088-28-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/2088-27-0x00000000023F0000-0x00000000023F1000-memory.dmp

memory/2088-26-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/2088-25-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/2088-24-0x00000000023A0000-0x00000000023A1000-memory.dmp

memory/2088-23-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/2088-22-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2088-21-0x0000000002390000-0x0000000002391000-memory.dmp

memory/2088-20-0x0000000002360000-0x0000000002361000-memory.dmp

memory/2088-19-0x0000000002370000-0x0000000002371000-memory.dmp

memory/2088-18-0x0000000002030000-0x0000000002031000-memory.dmp

memory/2088-17-0x0000000002040000-0x0000000002041000-memory.dmp

memory/2088-16-0x0000000002010000-0x0000000002011000-memory.dmp

memory/2088-15-0x0000000002020000-0x0000000002021000-memory.dmp

memory/2088-14-0x0000000001FF0000-0x0000000001FF1000-memory.dmp

memory/2088-13-0x0000000002000000-0x0000000002001000-memory.dmp

memory/2088-12-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/2088-11-0x0000000000580000-0x0000000000581000-memory.dmp

memory/2088-10-0x0000000000570000-0x0000000000571000-memory.dmp

memory/2088-9-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/2088-8-0x0000000000590000-0x0000000000591000-memory.dmp

memory/2088-7-0x00000000005A0000-0x00000000005A3000-memory.dmp

memory/2088-6-0x0000000000560000-0x0000000000561000-memory.dmp

memory/2088-5-0x00000000003C0000-0x00000000003C1000-memory.dmp

memory/2088-4-0x0000000000270000-0x0000000000271000-memory.dmp

memory/2088-3-0x0000000000340000-0x0000000000341000-memory.dmp

memory/2088-2-0x00000000003F0000-0x00000000003F1000-memory.dmp

memory/2088-1-0x0000000000500000-0x0000000000543000-memory.dmp

memory/2088-78-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/2088-82-0x0000000003690000-0x0000000003691000-memory.dmp

memory/2088-81-0x00000000036A0000-0x00000000036A1000-memory.dmp

memory/2088-80-0x0000000003670000-0x0000000003671000-memory.dmp

memory/2088-79-0x0000000003680000-0x0000000003681000-memory.dmp

memory/2088-83-0x0000000000500000-0x0000000000543000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 10:42

Reported

2024-06-20 10:45

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\system\ufo N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\system\ufo C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A
File opened for modification C:\Windows\system\ufo C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A
File created C:\Windows\GUOCYOKl.BAT C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system\ufo N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system\ufo N/A

Processes

C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\053dfc6a10328c0117884af463ebc4bf_JaffaCakes118.exe"

C:\Windows\system\ufo

C:\Windows\system\ufo

C:\Program Files\Internet Explorer\IEXPLORE.EXE

"C:\Program Files\Internet Explorer\IEXPLORE.EXE"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\GUOCYOKl.BAT

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 yujia3344520.vicp.net udp
US 8.8.8.8:53 yujia3344520.vicp.net udp
US 8.8.8.8:53 yujia3344520.vicp.net udp
US 8.8.8.8:53 yujia3344520.vicp.net udp

Files

memory/1652-0-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/1652-1-0x00000000022E0000-0x0000000002323000-memory.dmp

memory/1652-7-0x00000000024E0000-0x00000000024E3000-memory.dmp

memory/1652-6-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/1652-5-0x0000000002350000-0x0000000002351000-memory.dmp

memory/1652-4-0x00000000007D0000-0x00000000007D1000-memory.dmp

memory/1652-3-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/1652-2-0x0000000002480000-0x0000000002481000-memory.dmp

memory/1652-39-0x0000000002800000-0x0000000002801000-memory.dmp

memory/1652-38-0x00000000027D0000-0x00000000027D1000-memory.dmp

memory/1652-37-0x00000000027E0000-0x00000000027E1000-memory.dmp

memory/1652-36-0x00000000027A0000-0x00000000027A1000-memory.dmp

memory/1652-44-0x0000000002990000-0x0000000002991000-memory.dmp

memory/1652-47-0x0000000002980000-0x0000000002981000-memory.dmp

memory/1652-46-0x00000000029A0000-0x00000000029A1000-memory.dmp

memory/1652-45-0x0000000002970000-0x0000000002971000-memory.dmp

memory/1652-43-0x0000000002960000-0x0000000002961000-memory.dmp

memory/1652-42-0x0000000002810000-0x0000000002811000-memory.dmp

memory/1652-40-0x00000000027F0000-0x00000000027F1000-memory.dmp

memory/1652-41-0x0000000002820000-0x0000000002821000-memory.dmp

memory/1652-35-0x00000000027B0000-0x00000000027B1000-memory.dmp

memory/1652-34-0x0000000002780000-0x0000000002781000-memory.dmp

memory/1652-33-0x0000000002790000-0x0000000002791000-memory.dmp

memory/1652-32-0x0000000002760000-0x0000000002761000-memory.dmp

memory/1652-31-0x0000000002770000-0x0000000002771000-memory.dmp

memory/1652-30-0x0000000002640000-0x0000000002641000-memory.dmp

memory/1652-29-0x0000000002650000-0x0000000002651000-memory.dmp

memory/1652-28-0x0000000002620000-0x0000000002621000-memory.dmp

memory/1652-27-0x0000000002630000-0x0000000002631000-memory.dmp

memory/1652-26-0x0000000002600000-0x0000000002601000-memory.dmp

memory/1652-25-0x0000000002610000-0x0000000002611000-memory.dmp

memory/1652-24-0x00000000025E0000-0x00000000025E1000-memory.dmp

memory/1652-23-0x00000000025F0000-0x00000000025F1000-memory.dmp

memory/1652-22-0x00000000025C0000-0x00000000025C1000-memory.dmp

memory/1652-21-0x00000000025D0000-0x00000000025D1000-memory.dmp

memory/1652-20-0x00000000025A0000-0x00000000025A1000-memory.dmp

memory/1652-19-0x00000000025B0000-0x00000000025B1000-memory.dmp

memory/1652-18-0x0000000002580000-0x0000000002581000-memory.dmp

memory/1652-17-0x0000000002590000-0x0000000002591000-memory.dmp

memory/1652-16-0x0000000002560000-0x0000000002561000-memory.dmp

memory/1652-15-0x0000000002570000-0x0000000002571000-memory.dmp

memory/1652-14-0x0000000002540000-0x0000000002541000-memory.dmp

memory/1652-13-0x0000000002550000-0x0000000002551000-memory.dmp

memory/1652-12-0x0000000002510000-0x0000000002511000-memory.dmp

memory/1652-11-0x00000000024C0000-0x00000000024C1000-memory.dmp

memory/1652-10-0x00000000024B0000-0x00000000024B1000-memory.dmp

memory/1652-9-0x00000000024F0000-0x00000000024F1000-memory.dmp

memory/1652-8-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/1652-72-0x0000000002E70000-0x0000000002E71000-memory.dmp

memory/1652-71-0x0000000002E40000-0x0000000002E41000-memory.dmp

memory/1652-70-0x0000000002E50000-0x0000000002E51000-memory.dmp

memory/1652-77-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

memory/1652-76-0x0000000002EA0000-0x0000000002EA1000-memory.dmp

memory/1652-75-0x0000000002E80000-0x0000000002E81000-memory.dmp

memory/1652-74-0x0000000002E90000-0x0000000002E91000-memory.dmp

memory/1652-73-0x0000000002E60000-0x0000000002E61000-memory.dmp

memory/1652-69-0x0000000002E20000-0x0000000002E21000-memory.dmp

memory/1652-68-0x0000000002E30000-0x0000000002E31000-memory.dmp

memory/1652-67-0x0000000002E00000-0x0000000002E01000-memory.dmp

memory/1652-66-0x0000000002E10000-0x0000000002E11000-memory.dmp

memory/1652-65-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

memory/1652-64-0x0000000002DF0000-0x0000000002DF1000-memory.dmp

memory/1652-63-0x0000000002DC0000-0x0000000002DC1000-memory.dmp

memory/1652-62-0x0000000002DD0000-0x0000000002DD1000-memory.dmp

memory/1652-61-0x0000000002A60000-0x0000000002A61000-memory.dmp

memory/1652-60-0x0000000002A70000-0x0000000002A71000-memory.dmp

memory/1652-59-0x0000000002A40000-0x0000000002A41000-memory.dmp

memory/1652-58-0x0000000002A50000-0x0000000002A51000-memory.dmp

memory/1652-57-0x0000000002A20000-0x0000000002A21000-memory.dmp

memory/1652-56-0x0000000002A30000-0x0000000002A31000-memory.dmp

memory/1652-55-0x0000000002A00000-0x0000000002A01000-memory.dmp

memory/1652-54-0x0000000002A10000-0x0000000002A11000-memory.dmp

memory/1652-53-0x00000000029E0000-0x00000000029E1000-memory.dmp

memory/1652-52-0x00000000029F0000-0x00000000029F1000-memory.dmp

memory/1652-51-0x00000000029C0000-0x00000000029C1000-memory.dmp

memory/1652-50-0x00000000029D0000-0x00000000029D1000-memory.dmp

memory/1652-79-0x0000000002EC0000-0x0000000002EC1000-memory.dmp

memory/1652-78-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

C:\Windows\System\ufo

MD5 053dfc6a10328c0117884af463ebc4bf
SHA1 c5ec68d9669832d48b297bca8262c7c661043837
SHA256 9f782afb91dd86b1ed2f226a32cdb7092a628f4a16bdeabc3a5c1b05a70696b1
SHA512 1ad15aaa54c77665f8ff78e84eee24d3f9ac2d83bd8f88450b3bd37191334e3d749308246f54a11591ce96c49af46ef92efab631ceb13da91af4f90ebec20d18

memory/4920-83-0x0000000000E80000-0x0000000000EC3000-memory.dmp

memory/1652-82-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/1652-87-0x00000000022E0000-0x0000000002323000-memory.dmp

memory/1652-86-0x0000000000400000-0x00000000004F4000-memory.dmp

C:\Windows\GUOCYOKl.BAT

MD5 e316c54d7cf7173f0380f8e0c3744eb5
SHA1 2e9c3aabd1e826e6e15db0b7060db4255a3034fd
SHA256 91a5ece8b5d54d1921ac89ad28631b2726c42e7c407dadd15fbaadad8904d561
SHA512 4710c7f90073e6751f648d2e848d4500666d3c604ac6f61d04254e0ce2753f746e4ec1f41c471f20cc1d5ab4f3f7cb9b87fffbdb9dbffccdaabfe82defc83df5

memory/4920-89-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/4920-90-0x0000000000400000-0x00000000004F4000-memory.dmp

memory/4920-91-0x0000000000E80000-0x0000000000EC3000-memory.dmp