226dccb2b48a26f5e1059e1c6da369986991f1532f625d5de7759a09b9d6fd3c

General

Target

ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
Size

895KB
MD5

ee672d18981e368f5e7e168864f92f15
SHA1

bbd137e7f8d90992fbe3098ad3680058371334b6
SHA256

226dccb2b48a26f5e1059e1c6da369986991f1532f625d5de7759a09b9d6fd3c
SHA512

88be053e64078e61098892ba1de0815bb0b3cca1a7207bdd8f8c998504aa0a69093d55e37e671939dc7df76f27951304f4f94970b9beb3b0efbd4878130d2089
SSDEEP

24576:ZMMpXS0hN0V0HoSMMMpXS0hN0V0HoSTSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFe:Kwi0L0qlFwi0L0qlGx

Score

10^/10

aspackv2 discovery persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0005000000010300-2.dat	aspack_v212_v242
behavioral1/files/0x000600000001919c-45.dat	aspack_v212_v242

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe

Enumerates connected drives 3 TTPs 23 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)	\??\H:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	F:\AUTORUN.INF	HelpMe.exe
File opened for modification	C:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\HelpMe.exe	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\notepad.exe.exe	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HelpMe.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2856	2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2856	2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2856	2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2856	2080	ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee672d18981e368f5e7e168864f92f15_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\S-1-5-21-3551809350-4263495960-1443967649-1000\desktop.ini.exe

Filesize
867KB

MD5
d61768d7249536fec498204c87583c7f

SHA1
5e6715a57ff7fcd45de19169ec53c728af5f2af9

SHA256
b86429c87ffce2dda477ea0f62daf4594fdf7cf0e3da980a281caff46e4ba185

SHA512
fa86bee1503cc0567d1dc0f35abafeb864f9e5503d3ee7a5f466cb791f667113adef779ddc69e97590cba0429e78c38b03d8cbcce9fd7df9ba9dfb069076adf0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
954B

MD5
d8732d32132b48b06dbf1f0e4c661973

SHA1
316597467ac05408b9ec3f280b2895c0d17d8727

SHA256
97a029c5fb947d72c1dcd4678f456a772956a2471608ffdda26595e5510131b3

SHA512
c96984bf80d858b39cb44a52d7a1acddf5b61fe99338365b6c6c86553822eae8b1205ad29cec9b540079d477c19149fff8b4601771d85342ea69c0ad23329116

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
866KB

MD5
c378c77f977bf63d6a1b6d6ea8247bd3

SHA1
73053ce4027e3f530979e4f23f82e547520bd442

SHA256
610250bec271b8072d9f6b6a1373f413022dcb5b687336d73f5f3559b4d1139d

SHA512
92da359260afe58a6455c50428e30248f9a6c2ed81c1d385898bb65a5f010fba1035e69d454a77106b741856f6f2bc40590b7686b324ae8ec6c80b446ddf6362

Download Submit
memory/2080-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2080-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-240-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-248-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-230-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-236-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-10-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2856-243-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-246-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-233-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-251-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-255-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-258-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-261-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-264-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-267-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2856-269-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads

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