24735b0dc6233726430e51f710641f07dde533e7f505b19e9611fa9c05b67cd9

Analysis

max time kernel
93s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
06/07/2024, 07:15

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General

Target

27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe
Size

25KB
MD5

27b13b4e889ea78740a9558092804d5d
SHA1

2a88b63cf1a26fab17e4ee7cb980c03cf17ff285
SHA256

24735b0dc6233726430e51f710641f07dde533e7f505b19e9611fa9c05b67cd9
SHA512

24b49f28b406c74cd50e6d9af1418f15c5991d8e6dff1eb0763633561f47e1c686fb9d9ad4360d2d63e8f05bb1bb64645d52ae2de3adfbb0db5dfd5eeef6a865
SSDEEP

768:FnM7I+iTdDwCgyI6YuSn2Jsn5ylml+bmsXCR2Q:vBECgyIjhb5yclVsXCU

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2384	che08.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/files/0x0006000000023287-4.dat	upx
behavioral2/memory/4936-9-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	\??\c:\windows\che08.exe	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe
File opened for modification	\??\c:\windows\bemark2.dat	che08.exe
File created	\??\c:\windows\bemark2.dat	che08.exe
File opened for modification	\??\c:\windows\che08.exe	che08.exe
File opened for modification	\??\c:\windows\che08.exe	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1572100814"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117172"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "427015108"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{892E31E4-3B67-11EF-9BD7-DE99B1538382} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1569600782"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117172"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1569600782"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1015551233-1106003478-1645743776-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31117172"	iexplore.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Mime\Database\Content Type\application/xhtml+xml	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/xhtml+xml\CLSID = "{25336920-03F9-11cf-8FD0-00AA00686F13}"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/xhtml+xml\Extension = ".xml"	regedit.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/xhtml+xml\Encoding = 08000000	regedit.exe

Runs .reg file with regedit 1 IoCs

pid	Process
432	regedit.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2388	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2388	iexplore.exe
2388	iexplore.exe
2312	IEXPLORE.EXE
2312	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2384	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	83
PID 4936 wrote to memory of 2384	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	83
PID 4936 wrote to memory of 2384	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	83
PID 4936 wrote to memory of 3624	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	84
PID 4936 wrote to memory of 3624	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	84
PID 4936 wrote to memory of 3624	4936	27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe	84
PID 2388 wrote to memory of 2312	2388	iexplore.exe	90
PID 2388 wrote to memory of 2312	2388	iexplore.exe	90
PID 2388 wrote to memory of 2312	2388	iexplore.exe	90
PID 2384 wrote to memory of 432	2384	che08.exe	91
PID 2384 wrote to memory of 432	2384	che08.exe	91
PID 2384 wrote to memory of 432	2384	che08.exe	91
PID 2384 wrote to memory of 1196	2384	che08.exe	92
PID 2384 wrote to memory of 1196	2384	che08.exe	92
PID 2384 wrote to memory of 1196	2384	che08.exe	92

C:\Users\Admin\AppData\Local\Temp\27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27b13b4e889ea78740a9558092804d5d_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4936
- \??\c:\windows\che08.exe
  c:\windows\che08.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2384
- - \??\c:\windows\SysWOW64\regedit.exe
    regedit /s c:\1.reg
    3⤵
    - Modifies registry class
    - Runs .reg file with regedit
    PID:432
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c c:\355674543.bat
    3⤵
    PID:1196
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c c:\355674543.bat
  2⤵
  PID:3624

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:1924

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2388 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NMWT2DJF\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\che08.exe

Filesize
25KB

MD5
27b13b4e889ea78740a9558092804d5d

SHA1
2a88b63cf1a26fab17e4ee7cb980c03cf17ff285

SHA256
24735b0dc6233726430e51f710641f07dde533e7f505b19e9611fa9c05b67cd9

SHA512
24b49f28b406c74cd50e6d9af1418f15c5991d8e6dff1eb0763633561f47e1c686fb9d9ad4360d2d63e8f05bb1bb64645d52ae2de3adfbb0db5dfd5eeef6a865

Download Submit
\??\c:\1.reg

Filesize
202B

MD5
428090d84a47f875c8fdd6d0258f00c5

SHA1
96c029720065ac1dc5ece2a5481b780267d7b439

SHA256
8c8668f6339728aebfc08e547f15b0e250f6a551be86f47fcb6098ffe37f0404

SHA512
f752bf52b359a5a82e821ee288e11cd4176c39ac3c932c6f44db69780c6e2597e654bbb3a9db9c32f8659d5af66fa9578b5625758b1f6db70c1314369dbadf7d

Download Submit
\??\c:\355674543.bat

Filesize
241B

MD5
412bc0a929fcb686d58abc406c17ea2d

SHA1
aa59ac255ee811d5e274acf022bc8065c8716856

SHA256
82f68e75945859a4028c302065a0ef4bf3d494a747cb5aeec9802bc1f61c452f

SHA512
218b52ebded283f3a14be2a6232fbf8e385f11334a52b0db3e3b1366a9973bb4ccfe34c75686e077c22a608b70ebe098d079e5bf2434c2095bc4010327765817

Download Submit
\??\c:\355674543.bat

Filesize
113B

MD5
bee9360e8ba37e8b83a1b70f814abcf7

SHA1
d0fa9879665a471445fa00638a9a12da07fa0371

SHA256
e94360192abec51e910d2f79fe5bbde3ecdc5f3ea828b5e4a3e5523b055a49ed

SHA512
4075e73137fb12845da25e7438e1d14de120f85defe3de22f1b34f9368cb53b2c14769e87e3482ebff88367156aa272df0893ee2a27e5550c1a8f477d365ba4c

Download Submit
memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4936-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download