9c07d813f66300267def26c7191718e273618b59465113c375b2216c58f948c2

General

Target
50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
Size 202KB
Sample241017-c552js1hmj
SHA256 9c07d813f66300267def26c7191718e273618b59465113c375b2216c58f948c2
MD5 50630318b131b0fc5c571899e2017c53
SHA1 1e4d1c6ba8c16dbb7ecd11164391c254669e2390
SHA512 05267dd4adfcf727daf2abdb47384d2b9396d4ed2670838932db869227931f8dce98c1f5b4242de8fed6857dbdb13326066a53df77426940b0c899a4a176f40b
SSDEEP 6144:O0YhjwuTT396HSjGT7UZ5SPzcxt4SpN/Y/n:8hjfTTHBkc4Sx0
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)	\??\p:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\q:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\u:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\w:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\x:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\k:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\j:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\l:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\n:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\s:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\t:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\y:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\h:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\v:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\z:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\r:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\g:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\i:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\m:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\o:	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
File opened (read-only)	\??\e:	50630318b131b0fc5c571899e2017c53_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	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-17-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-18-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-22-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-23-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-24-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-26-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral1/memory/2240-29-0x0000000000400000-0x0000000000477000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SAItest.txt	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe

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	50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\50630318b131b0fc5c571899e2017c53_JaffaCakes118.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2240