5735573e1c4a678ea0ff3a966db4d7bdebe75d84b669fff4858bd03f2e647968

General

Target

b7d5004bef0f467729a028d1e3400443_JaffaCakes118.dll
Size

165KB
MD5

b7d5004bef0f467729a028d1e3400443
SHA1

1f7d1af6bc7061ea3254350a8ac28c134de6c3aa
SHA256

5735573e1c4a678ea0ff3a966db4d7bdebe75d84b669fff4858bd03f2e647968
SHA512

d9c329982d230b5de063704f72b109edde3520694bd909e31c1ffe8ce43e3150b49aee9e922a3d600cb9dc52fec76f5eefd1805922e12937e6de5403530c131d
SSDEEP

3072:ia3sh3AZ7jermUUBD6Xi+N3BRr0mRIcqNcKQopoaft+lL15YANipuorwGHFh3hL/:WhQZWrmNz+Nxl0mGc2cBQ0lL15YAkuRu

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\DCOM Server 60787 = "{2C1CD3D7-86AC-4068-93BC-A02304B60787}"	rundll32.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
2	2292	rundll32.exe
3	2292	rundll32.exe
6	2292	rundll32.exe
7	2292	rundll32.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	rundll32.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2292-2-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-3-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-4-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-5-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-6-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-11-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-16-0x0000000010000000-0x0000000010D2E000-memory.dmp	upx
behavioral1/memory/2292-17-0x0000000010000000-0x0000000010D2E000-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	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b7d5004bef0f467729a028d1e3400443_JaffaCakes118.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30
PID 1924 wrote to memory of 2292	1924	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7d5004bef0f467729a028d1e3400443_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7d5004bef0f467729a028d1e3400443_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Blocklisted process makes network request
  - Drops file in Drivers directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2292-1-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-2-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-3-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-4-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-5-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-6-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-11-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-16-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download
memory/2292-17-0x0000000010000000-0x0000000010D2E000-memory.dmp

Filesize
13.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads