089b7dbc5fb09b9a3b88265ff8ef855987f4531741c9432c5d20da342633e09e

General

Target

17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Size

156KB
MD5

17f3f78e68037cc67dc4593749086541
SHA1

9e84f53a8ddc113433fcc761c4715cfa2043def5
SHA256

089b7dbc5fb09b9a3b88265ff8ef855987f4531741c9432c5d20da342633e09e
SHA512

5800753d90334bac19f1a5a8a80150b52ee5b953974adf67ed310a36a2e0aea164a9fc2d9dd20a3e03b29e525d61acb78942ebdfa086df9a56e4b6abb4691da9
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iepFV222qSFqqs0:gMDgG4ChfiPOefgsOUqQwg0

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 4 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\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File created	C:\Windows\Help\intret.cnt	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\System\Explorer.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\System\Sysexp32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\System\applets.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\System\applets.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\Syssrc32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\System\Explorer.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\Help\intret.cnt	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\System\mplayerw.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\System\mplayerw.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\Syssrc32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File opened for modification	C:\Windows\System\fndfst32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\System\fndfst32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
File created	C:\Windows\System\Sysexp32.exe	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
544	2908	WerFault.exe	29

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	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 544	2908	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe	30
PID 2908 wrote to memory of 544	2908	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe	30
PID 2908 wrote to memory of 544	2908	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe	30
PID 2908 wrote to memory of 544	2908	17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\17f3f78e68037cc67dc4593749086541_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2908 -s 92
  2⤵
  - Program crash
  PID:544

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

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Downloads

C:\Windows\system\Sysexp32.exe

Filesize
168KB

MD5
c09a6c0ad024d94be56ecc907a842418

SHA1
136daad7324bfc61d7e33bd6bb8d9eae42a18d9d

SHA256
8a33eae30cd1aafdcd3ea0e01e05e2a3b6acce1d2e39059fa5cb2e536cca1349

SHA512
fe48d85d7047278f79b43ac84244931a85d7c57e4864a1eb94f8e30c84bcfb87c62989adfada72e17c5fbfb7e8d2e7accb1ccf9f1e2e3cc579c7a11057b68395

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads