9b4e07ad6da1d27081d66de98603f6178dfd70b8d28dde2cefc74dab9f7f2999

General

Target
4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
Size 202KB
Sample241017-a5sp4swemk
SHA256 9b4e07ad6da1d27081d66de98603f6178dfd70b8d28dde2cefc74dab9f7f2999
MD5 4ff38c11f7eda0c7f3a3e2189232b917
SHA1 69a7b77d0d550c9342db1cf7bea9fa5bf275cfbd
SHA512 5f4c16fcd204562a337feb73e2fd66e5023e8cf6cf5bb48601f0c618e810b78f75ab818c772cd289c20df392bf1f3e1c0ecabc1a8e0230dea0489875e1da746f
SSDEEP 6144:K0YhjwuTT396HSjGT7UZ5SPzcxt48T0+TjZkKJ:QhjfTTHBkc46jG6
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

bootkit discovery persistence upx

Malware Config

Signatures

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\r:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\u:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\v:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\h:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\k:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\m:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\n:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\q:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\e:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\o:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\w:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\y:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\z:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\j:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\l:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\p:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\t:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\x:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\g:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\i:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
File opened (read-only)	\??\s:	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2256-0-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-5-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-6-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-8-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-9-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-10-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/2256-12-0x0000000000400000-0x0000000000477000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\742C3192E607E424EB4549542BE1BBC53E6174E2	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\742C3192E607E424EB4549542BE1BBC53E6174E2\Blob = 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	4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4ff38c11f7eda0c7f3a3e2189232b917_JaffaCakes118.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Modifies system certificate store
PID:2256