a842fa90e33d822cc543524b4ec673f209cb47d0867bff3e7f55798c3b7d950a

General

Target

c01f45b388120587360157238d37012c_JaffaCakes118.exe
Size

48KB
MD5

c01f45b388120587360157238d37012c
SHA1

0e310081cc01beb28d853b0effa3fc2223016125
SHA256

a842fa90e33d822cc543524b4ec673f209cb47d0867bff3e7f55798c3b7d950a
SHA512

53246acc4f300f19a1c2f2264477fe07674daf5c9f17dbeb03c1fcaf77ec1d9700a6bad2fee8b5c18dc4b2b960a9f2ec864a115cf012da98b1d85a036e9f4b9a
SSDEEP

768:MuQgGxPAYfGEQ66wFboTJ2bsVt3WiymY1PumaqGH:MP/e76/bg/Gi0m

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3144	w8673492.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023401-3.dat	upx
behavioral2/memory/3144-4-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/3144-9-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Adds Run key to start application 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\Run\WindowsFZ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c01f45b388120587360157238d37012c_JaffaCakes118.exe"	c01f45b388120587360157238d37012c_JaffaCakes118.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wp.bmp	c01f45b388120587360157238d37012c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\w8673492.exe	c01f45b388120587360157238d37012c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\oleadm.dll	w8673492.exe
File created	C:\Windows\SysWOW64\oleadm32.dll	w8673492.exe
File opened for modification	C:\Windows\SysWOW64\oleadm32.dll	w8673492.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\Wallpaper = "C:\\Windows\\system32\\wp.bmp"	c01f45b388120587360157238d37012c_JaffaCakes118.exe

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	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	w8673492.exe

Modifies Control Panel 4 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Colors	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Colors\Background = "0 0 0"	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\WallpaperStyle = "0"	c01f45b388120587360157238d37012c_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{357A87ED-3E5D-437d-B334-DEB7EB4982A3}	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{357A87ED-3E5D-437d-B334-DEB7EB4982A3}\Clr = "0"	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{357A87ED-3E5D-437d-B334-DEB7EB4982A3}\Wp = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	c01f45b388120587360157238d37012c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{357A87ED-3E5D-437d-B334-DEB7EB4982A3}\WpS = "10"	c01f45b388120587360157238d37012c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 3144	2676	c01f45b388120587360157238d37012c_JaffaCakes118.exe	84
PID 2676 wrote to memory of 3144	2676	c01f45b388120587360157238d37012c_JaffaCakes118.exe	84
PID 2676 wrote to memory of 3144	2676	c01f45b388120587360157238d37012c_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\c01f45b388120587360157238d37012c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c01f45b388120587360157238d37012c_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\w8673492.exe
  w8673492.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3144

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

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

C:\Windows\SysWOW64\w8673492.exe

Filesize
8KB

MD5
1610130ae01504d8af5528306b664720

SHA1
77921754e3341e75dfe6b7d6b5b7895b9844d53e

SHA256
18d2c5c9f8d8b64a03ec2f9bf26e134b06f1922d300dc024909d269734c614e0

SHA512
d83afd61a82c6c8920335c10749f73a240d3f2bfe6870a2eef07ad63628f4e9e5d1cbd4ca73196d9a67cd6f7635bb1d9f0a564604694d421cc198ce691661dbd

Download Submit
memory/3144-4-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/3144-9-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads