Malware Analysis Report

2024-09-09 19:14

Sample ID 240613-twexfazfln
Target a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118
SHA256 b1c33cd1301871eaa7e0e685fbaae602095b6ae8c031593dbd0fb4985e31deb9
Tags
evasion
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
9/10

SHA256

b1c33cd1301871eaa7e0e685fbaae602095b6ae8c031593dbd0fb4985e31deb9

Threat Level: Likely malicious

The file a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

evasion

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Drops desktop.ini file(s)

Drops file in Windows directory

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Modifies system certificate store

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-13 16:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 16:24

Reported

2024-06-13 16:26

Platform

win7-20240221-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe N/A

Enumerates physical storage devices

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe

"C:\Users\Admin\AppData\Local\Temp\n6198\s6198.exe" ins.exe /e 12909109 /u 7dc77c29-cae6-11e3-8a58-80c16e6f498c /h 3f5a67.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 crl.globalsign.net udp
US 104.18.21.226:80 crl.globalsign.net tcp
US 8.8.8.8:53 3f5a67.api.socdn.com udp
US 76.223.26.96:80 3f5a67.api.socdn.com tcp

Files

\Users\Admin\AppData\Local\Temp\n6198\s6198.exe

MD5 0e88682aeba4d7ef923b316f97f990ba
SHA1 a54a0df52206ab79c0ad19be7402ab8564b7ad8c
SHA256 6be0358b2703e0e317ec4ddefbc320014b3c2a14eb1d959b0ed399586fd2bba1
SHA512 c0755f0b6fd5d01872464c1fa4b3d11c4ad4fd84f355bc9a9938bc5057373c18753915eeaabd31eb1db5cd95399a5b5083de31f11b55adba58316082421607c6

memory/1856-17-0x000007FEF628E000-0x000007FEF628F000-memory.dmp

memory/1856-18-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/1856-34-0x0000000000560000-0x000000000056E000-memory.dmp

memory/1856-35-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 16:24

Reported

2024-06-13 16:26

Platform

win10v2004-20240508-en

Max time kernel

99s

Max time network

111s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Enumerates physical storage devices

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 5c000000010000000400000000080000190000000100000010000000a823b4a20180beb460cab955c24d7e21030000000100000014000000b1bc968bd4f49d622aa89a81f2150152a41d829c7e00000001000000080000000000042beb77d5017a000000010000000c000000300a06082b060105050703097f000000010000000c000000300a06082b060105050703091d00000001000000100000006ee7f3b060d10e90a31ba3471b999236140000000100000014000000607b661a450d97ca89502f7d04cd34a8fffcfd4b620000000100000020000000ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c990b000000010000003000000047006c006f00620061006c005300690067006e00200052006f006f00740020004300410020002d002000520031000000530000000100000040000000303e301f06092b06010401a032010130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c0090000000100000068000000306606082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050508020206082b0601050507030606082b0601050507030706082b0601050507030906082b0601050507030106082b060105050703080f00000001000000140000005a6d07b6371d966a2fb6ba92828ce5512a49513d0400000001000000100000003e455215095192e1b75d379fb187298a200000000100000079030000308203753082025da003020102020b040000000001154b5ac394300d06092a864886f70d01010505003057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f74204341301e170d3938303930313132303030305a170d3238303132383132303030305a3057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100da0ee6998dcea3e34f8a7efbf18b83256bea481ff12ab0b9951104bdf063d1e26766cf1cddcf1b482bee8d898e9aaf298065abe9c72d12cbab1c4c7007a13d0a30cd158d4ff8ddd48c50151cef50eec42ef7fce952f2917de06dd535308e5e4373f241e9d56ae3b2893a5639386f063c88695b2a4dc5a754b86c89cc9bf93ccae5fd89f5123c927896d6dc746e934461d18dc746b2750e86e8198ad56d6cd5781695a2e9c80a38ebf224134f73549313853a1bbc1e34b58b058cb9778bb1db1f2091ab09536e90ce7b3774b97047912251631679aeb1ae412608c8192bd146aa48d6642ad78334ff2c2ac16c19434a0785e7d37cf62168efeaf2529f7f9390cf0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e04160414607b661a450d97ca89502f7d04cd34a8fffcfd4b300d06092a864886f70d01010505000382010100d673e77c4f76d08dbfecbaa2be34c52832b57cfc6c9c2c2bbd099e53bf6b5eaa1148b6e508a3b3ca3d614dd34609b33ec3a0e363551bf2baefad39e143b938a3e62f8a263befa05056f9c60afd38cdc40b705194979804dfc35f94d515c914419cc45d7564150dff5530ec868fff0def2cb96346f6aafcdfbc69fd2e1248649ae095f0a6ef298f01b115b50c1da5fe692c6924781eb3a71c7162eecac897ac175d8ac2f847866e2ac4563195d06789852bf96ca65d469d0caa82e49951dd70b7db563d61e46ae15cd6f6fe3dde41cc07ae6352bf5353f42be9c7fdb6f7825f85d24118db81b3041cc51fa4806f1520c9de0c880a1dd66655e2fc48c9292669e0 C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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 C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe

"C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe" ins.exe /e 12909109 /u 7dc77c29-cae6-11e3-8a58-80c16e6f498c /h 3f5a67.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\a67ac227d93af7d6844f7a4479a693b8_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1924 -ip 1924

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 3800

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 crl.globalsign.net udp
US 8.8.8.8:53 crl.globalsign.com udp
US 8.8.8.8:53 3f5a67.api.socdn.com udp

Files

C:\Users\Admin\AppData\Local\Temp\n6194\s6194.exe

MD5 0e88682aeba4d7ef923b316f97f990ba
SHA1 a54a0df52206ab79c0ad19be7402ab8564b7ad8c
SHA256 6be0358b2703e0e317ec4ddefbc320014b3c2a14eb1d959b0ed399586fd2bba1
SHA512 c0755f0b6fd5d01872464c1fa4b3d11c4ad4fd84f355bc9a9938bc5057373c18753915eeaabd31eb1db5cd95399a5b5083de31f11b55adba58316082421607c6

memory/4784-14-0x00007FFEF8FC5000-0x00007FFEF8FC6000-memory.dmp

memory/4784-15-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-16-0x00007FFEF8FC5000-0x00007FFEF8FC6000-memory.dmp

memory/4784-17-0x0000000000FD0000-0x0000000000FDE000-memory.dmp

memory/4784-20-0x000000001C3F0000-0x000000001C8BE000-memory.dmp

memory/4784-21-0x000000001BE10000-0x000000001BEAC000-memory.dmp

memory/4784-22-0x000000001CB80000-0x000000001CBE2000-memory.dmp

memory/4784-23-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-24-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-25-0x000000001BEB0000-0x000000001BEB8000-memory.dmp

memory/4784-26-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-27-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-28-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-29-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-30-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-31-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-32-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-33-0x0000000020A10000-0x0000000020F1E000-memory.dmp

memory/4784-34-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp

memory/4784-36-0x00007FFEF8D10000-0x00007FFEF96B1000-memory.dmp