6f40de7107acf45e7dcfa3cb501d85d6904dcf643ba74cdb8c561cfeb8efa8c6

General

Target
jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
Size 241KB
Sample261014-d1833sec75
SHA256 6f40de7107acf45e7dcfa3cb501d85d6904dcf643ba74cdb8c561cfeb8efa8c6
MD5 24e26ffdae0c1617abf0a0752aa67b44
SHA1 16241e59f20d71f6d62717324d7b1d49f6f1ba65
SHA512 a7b9bcf8b2807773f3e3c78e84b1fd4719d56b3e0848bb6e2941bde05ae32a2f66a017c932f2246ca850a9c916a44e3aa83517a551cb8e13397e1c4d15883cd8
SSDEEP 6144:GkeENDvTSn2SV/GuhYdViC7X57+nM02HzFZX7Nv:GNEND/k/GLPX57+nP2HznNv
TLSH
T139342306D33008C6C8024D37D227DD6AC695F913DD3FB746A9D16A2EED79792ABC3084
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

bootkit defense_evasion discovery persistence spyware trojan 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)	\??\w:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\g:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\h:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\j:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\l:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\m:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\n:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\o:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\r:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\k:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\s:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\t:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\u:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\x:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\y:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\e:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\v:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\z:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\i:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\p:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
File opened (read-only)	\??\q:	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.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	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1388-0-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral1/memory/1388-18-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral1/memory/1388-20-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral1/memory/1388-25-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral1/memory/1388-26-0x0000000000400000-0x0000000000489000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SAItest.txt	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.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	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe

Modifies system certificate store 2 TTPs 3 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 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	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 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	jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.AdWare.Win32.ScreenSaver.i.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies system certificate store
PID:1388

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

7B8944BA8AD0EFDF0E01A43EF62BECD0_E5BAFA780D24C246E9F81B665CB8210C

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7B8944BA8AD0EFDF0E01A43EF62BECD0_E5BAFA780D24C246E9F81B665CB8210C
Size 5B
SHA256 bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128
MD5 5bfa51f3a417b98e7443eca90fc94703
SHA1 8c015d80b8a23f780bdd215dc842b0f5551f63bd
SHA512 4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399
MD5 SHA1 SHA512

Submit Download

memory/1388-0-0x0000000000400000-0x0000000000489000-memory.dmp

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memory/1388-1-0x0000000000488000-0x0000000000489000-memory.dmp

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memory/1388-18-0x0000000000400000-0x0000000000489000-memory.dmp

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memory/1388-20-0x0000000000400000-0x0000000000489000-memory.dmp

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memory/1388-25-0x0000000000400000-0x0000000000489000-memory.dmp

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memory/1388-26-0x0000000000400000-0x0000000000489000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads