bf3e33648ccbdaace9eae8b5182a09945f7f5e46d87bd32416c0ecb9b759981f

General

Target

a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
Size

14KB
MD5

a4f3851ee6065315f4dffd80e03311cc
SHA1

19cf41e3a164f67d4d731f7f0131eab82a3d922b
SHA256

bf3e33648ccbdaace9eae8b5182a09945f7f5e46d87bd32416c0ecb9b759981f
SHA512

de53f0ca6d12127f6a1867abe3dbf29130a22d03628550845e61db93701a4b859e85002245bbca974959c74f40343933cd94f0042586512d202061a4515e56e9
SSDEEP

384:x33w8BmSLPMWHUuWL5amYnex3Hr9HoDLvECV6Lho+B:13VwS4WHUB5amgenCLvHEhoa

Score

10^/10

discovery persistence

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\slbiopfs2.dll = "{EB9660D8-E1CD-4ff0-B4A9-00CD907F928A}"	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2560	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\slbiopfs2.tmp	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\slbiopfs2.tmp	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\slbiopfs2.nls	a4f3851ee6065315f4dffd80e03311cc_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	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB9660D8-E1CD-4ff0-B4A9-00CD907F928A}	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB9660D8-E1CD-4ff0-B4A9-00CD907F928A}\InProcServer32	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB9660D8-E1CD-4ff0-B4A9-00CD907F928A}\InProcServer32\ = "C:\\Windows\\SysWow64\\slbiopfs2.dll"	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB9660D8-E1CD-4ff0-B4A9-00CD907F928A}\InProcServer32\ThreadingModel = "Apartment"	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 2560	2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe	30
PID 2976 wrote to memory of 2560	2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe	30
PID 2976 wrote to memory of 2560	2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe	30
PID 2976 wrote to memory of 2560	2976	a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a4f3851ee6065315f4dffd80e03311cc_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\B9DD.tmp.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2560

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:\Users\Admin\AppData\Local\Temp\B9DD.tmp.bat

Filesize
207B

MD5
6d4b61a8aac1ab0b2c7cb0fc5db35513

SHA1
70740ad2cd968abb3665dce054d04821a3a80226

SHA256
01116d84312f6e640df38e3096bbbd1c3a45583a6c0c5172efbfb1d04dbbacf9

SHA512
7c1233c3e5e0dec210bc383e784d04f584876e86c1493b6f17cef50d87e4c824b1ffd467b6bdea0e68bfbf7f96d9f4cbad18367070dab61337b691415f060095

Download Submit
C:\Windows\SysWOW64\slbiopfs2.nls

Filesize
428B

MD5
a4252eb9bb65e8a1917a058327fe7e6f

SHA1
654a7a8398ae51e25f58abc349df7e336f060c51

SHA256
5fc0674495413cbe3cb0778a5300da76ddc7619265876b4e447dd01456b601ae

SHA512
cf7f0f3a52a240bb8c8de1d649d3f0c1fbb134b5b47255e6376fdee615113983a2712c07a9a16ea09839cf91c52f9d1db9c43492ebd8316c316b833663c00665

Download Submit
C:\Windows\SysWOW64\slbiopfs2.tmp

Filesize
2.1MB

MD5
1c7c729269993d47d6ca59774bacded9

SHA1
4f2332f4cb1314f4b08e68fc677ea44f83376a17

SHA256
9ab86a238b27f1a8da22d4a8ab1738543cb5c454829d063c3eff2ebbaa515b46

SHA512
c37bc1b548e96437fa56b60724bbf0a7d8645391fac0dc154a9117986f44389fda006b88c223b7c7170c3d4c0bcde11aa43e91b0195d3dabd2a792bb1b9075c9

Download Submit
memory/2976-16-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2976-25-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads