570ea492eb23ea90b15f8fffb8c0cfd9a0781f8a0566d9584e31d42840a9f938

Analysis

max time kernel
139s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 20:06

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General

Target

ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
Size

12KB
MD5

ee555b68a9f7f3b821f509152bcdc12a
SHA1

f7b744f467ef5c83434c796c57d840c598bb8a56
SHA256

570ea492eb23ea90b15f8fffb8c0cfd9a0781f8a0566d9584e31d42840a9f938
SHA512

0919d6ca804c549b2ea58c49e8e4066e85cae5728f493fd4466201811b127efcccd508cedb4bee3768f9a6776647cfa1a88090b04b3a3f9fb83b2b21d747a9cb
SSDEEP

192:seqPDtbsc1xQta/LsCQQmfLUesbPZNw0RaErPudRlIuHenRbpW4ha:cDVh+ta/40ELULNwXVIuHe/W4o

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\C:\Windows\Fonts\womelkdo.dll = "{B8F4C7B3-74C8-4380-80B6-B66E5486B904}"	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe

Loads dropped DLL 2 IoCs

pid	Process
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
2808	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1940-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1940-9-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\womelkdo.tmp	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
File opened for modification	C:\Windows\Fonts\z0114.dat	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl.1\CLSID\ = "{B8F4C7B3-74C8-4380-80B6-B66E5486B904}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\ = "ztatl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\VersionIndependentProgID\ = "Zt.ztatl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\TypeLib\ = "{E6ED0F88-01D3-435F-9913-5F30B83B84AC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\0\win32\ = "C:\\Windows\\Fonts\\womelkdo.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl\CurVer\ = "Zt.ztatl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\ = "zt 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib\ = "{E6ED0F88-01D3-435F-9913-5F30B83B84AC}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\ProgID\ = "Zt.ztatl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ = "Iztatl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl\ = "ztatl Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\InprocServer32\ = "C:\\Windows\\Fonts\\womelkdo.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib\ = "{E6ED0F88-01D3-435F-9913-5F30B83B84AC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8F4C7B3-74C8-4380-80B6-B66E5486B904}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl\CLSID\ = "{B8F4C7B3-74C8-4380-80B6-B66E5486B904}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E6ED0F88-01D3-435F-9913-5F30B83B84AC}\1.0\HELPDIR\ = "C:\\Windows\\Fonts"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AAA8090-9D8D-4C2C-9D8C-B68BCB6A7BAA}\ = "Iztatl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Zt.ztatl.1\ = "ztatl Class"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2808	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	87
PID 1940 wrote to memory of 2808	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	87
PID 1940 wrote to memory of 2808	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	87
PID 1940 wrote to memory of 3812	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	96
PID 1940 wrote to memory of 3812	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	96
PID 1940 wrote to memory of 3812	1940	ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee555b68a9f7f3b821f509152bcdc12a_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Windows\Fonts\womelkdo.dll"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\EE555B~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Fonts\womelkdo.dll

Filesize
32KB

MD5
1828b8294cdd114be0391f1d78104dc1

SHA1
5061ea5b6d8ea47a2d2fce86b37a4b448073bf0d

SHA256
3409ba9cbf6c2010410b3333897ceb14ed3f4c5b1cea8db663c5557c4a17212a

SHA512
ad9a246160cbdd61f7dec908ce70677616555f1bf20c1dc402b68489513de3556ee145f426469005e7750c84f1e763fb8a9dde955f94af04fde95002bfc90405

Download Submit
memory/1940-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1940-9-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1940-10-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/1940-17-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2808-8-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download