12dae350239569e85555f1fdd052d263526e8e5c67b12a1b6a65ee3c4d9af3d2

Analysis

max time kernel
93s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 22:15

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General

Target

322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
Size

747KB
MD5

322fb9825ef9cb13d6486654fe2b846f
SHA1

6b35c9af64204cd71f123d1efb38e4039d6dfe26
SHA256

12dae350239569e85555f1fdd052d263526e8e5c67b12a1b6a65ee3c4d9af3d2
SHA512

cc781799aff15986d0208d2a109615269b8dd1f051f3483179d9f97603b652642e1cc1329d168f9ddf4514271195f44850bb6545b484afe43e09c404cae81f4c
SSDEEP

12288:U8F2GlKL2ioCvszUyYoCt3DIi0S80hrRZaqWR40rHeluaL0dUiuRm2Bao5:U8EGALzohzUy2NJvhjyR4kKJRi0+4

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 3 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0008000000023443-4.dat	acprotect
behavioral2/files/0x0007000000023447-15.dat	acprotect
behavioral2/files/0x0008000000023446-13.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
1608	PrstService.exe

Loads dropped DLL 4 IoCs

pid	Process
1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
1608	PrstService.exe
1608	PrstService.exe
1608	PrstService.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023443-4.dat	upx
behavioral2/memory/1680-5-0x0000000010000000-0x000000001012A000-memory.dmp	upx
behavioral2/files/0x0007000000023447-15.dat	upx
behavioral2/files/0x0008000000023446-13.dat	upx
behavioral2/memory/1608-26-0x0000000000600000-0x0000000000624000-memory.dmp	upx
behavioral2/memory/1680-30-0x0000000010000000-0x000000001012A000-memory.dmp	upx
behavioral2/memory/1608-48-0x0000000010000000-0x000000001012A000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\PrstService.dll	PrstService.exe
File created	C:\Windows\SysWOW64\PrstService.exe	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\PrstService.exe	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\PrstService.dll	PrstService.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File created	C:\Program Files\Internet Explorer\IJL105.DLL	PrstService.exe
File opened for modification	C:\Program Files\Internet Explorer\IJL105.DLL	PrstService.exe
File created	C:\Program Files\Internet Explorer\dp1.fne	PrstService.exe
File opened for modification	C:\Program Files\Internet Explorer\dp1.fne	PrstService.exe
File created	C:\Program Files\Internet Explorer\Exmlrpc.fne	PrstService.exe
File opened for modification	C:\Program Files\Internet Explorer\Exmlrpc.fne	PrstService.exe
File created	C:\Program Files\Internet Explorer\krnln.fnr	PrstService.exe
File opened for modification	C:\Program Files\Internet Explorer\krnln.fnr	PrstService.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\PrstService.jpg	PrstService.exe
File opened for modification	C:\Windows\Fonts\PrstService.jpg	PrstService.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5B773864-3E41-11EF-A8A8-CEC55C810519} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "802165476"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "NO"	PrstService.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "802165476"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117902"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117902"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31117902"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "805759217"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "427328564"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
1608	PrstService.exe
1608	PrstService.exe
1608	PrstService.exe
1608	PrstService.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
512	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
1608	PrstService.exe
512	IEXPLORE.EXE
512	IEXPLORE.EXE
3216	IEXPLORE.EXE
3216	IEXPLORE.EXE
3216	IEXPLORE.EXE
3216	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1608	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	82
PID 1680 wrote to memory of 1608	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	82
PID 1680 wrote to memory of 1608	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	82
PID 1608 wrote to memory of 512	1608	PrstService.exe	84
PID 1608 wrote to memory of 512	1608	PrstService.exe	84
PID 512 wrote to memory of 3216	512	IEXPLORE.EXE	86
PID 512 wrote to memory of 3216	512	IEXPLORE.EXE	86
PID 512 wrote to memory of 3216	512	IEXPLORE.EXE	86
PID 1680 wrote to memory of 2664	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	88
PID 1680 wrote to memory of 2664	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	88
PID 1680 wrote to memory of 2664	1680	322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe	88
PID 1608 wrote to memory of 512	1608	PrstService.exe	84

C:\Users\Admin\AppData\Local\Temp\322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\322fb9825ef9cb13d6486654fe2b846f_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\SysWOW64\PrstService.exe
  C:\Windows\system32\PrstService.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE" -nohome
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:512
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:512 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3216
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c c:\delus.bat
  2⤵
  PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WZ04RUV6\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\Exmlrpc.fne

Filesize
34KB

MD5
387cf1d2f17aff6967f3107773764513

SHA1
b971bcd44988bee744f8133acb032e07d9dcd1db

SHA256
74c55aaee905be674763d679ca05a6baaf93f456b5d8935d6293e523766968c6

SHA512
19a4fb39b2f9863c92d76016290e701fd6bb1aa5d889896666922fd862d5b72b95a97aa27d3d0b3218233ba9dbcb3db147efbf9e61e5be853d4d3672e87bfd5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\dp1.fne

Filesize
56KB

MD5
6649262561fba5d19f8b99dd251b5d02

SHA1
286e2ab6bc2220b3c9a83720c4c612623210e10f

SHA256
824afe6bde1c2890077e9a40c4261a77a1d736429709a45d68ed508581e74771

SHA512
688bd75b1e9661f425a21577063362e609ce496880a4780012317d56075095e5804fb7b849b32fbbea06fbbff5d47a5534113b6613f1a236b2a76cd043bba7ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

Filesize
406KB

MD5
e79169d47394020f7c893abb840b61bb

SHA1
c5b9c2cbef3d5458b52ebb67461e84432673fb1b

SHA256
11c25cdeb02ac401d913dc48b935a087e32c2d9b7b7c4a5cfdf36e4947e959dc

SHA512
21ca64559082a31e46e28513de762fa2239c521f60b3485bf99926f895f0bf6f63fe2162c3e2eb25705efad22d351e24b8283442f4954ac88bc8c56ef5dc529a

Download Submit
C:\Windows\SysWOW64\PrstService.exe

Filesize
747KB

MD5
322fb9825ef9cb13d6486654fe2b846f

SHA1
6b35c9af64204cd71f123d1efb38e4039d6dfe26

SHA256
12dae350239569e85555f1fdd052d263526e8e5c67b12a1b6a65ee3c4d9af3d2

SHA512
cc781799aff15986d0208d2a109615269b8dd1f051f3483179d9f97603b652642e1cc1329d168f9ddf4514271195f44850bb6545b484afe43e09c404cae81f4c

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

Filesize
230B

MD5
881079fdf538000b6156d02a83cc2429

SHA1
faa14b89ec39c3ee7789bf688481ff0321b024f8

SHA256
53eb1fb8a38d3104769c827b2665d723c4450a21e639887170554e28c6e2a501

SHA512
d3c7819a7608c997c0eeceb5ab8e32e074ea5ec16578d88966b58a9f6120a5fcbbcb0f2bc1a66dc9cba40e19f8ac66a60056b0813fcc4bc61850efb1d31609d3

Download Submit
memory/1608-26-0x0000000000600000-0x0000000000624000-memory.dmp

Filesize
144KB

Download
memory/1608-47-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1608-48-0x0000000010000000-0x000000001012A000-memory.dmp

Filesize
1.2MB

Download
memory/1680-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1680-30-0x0000000010000000-0x000000001012A000-memory.dmp

Filesize
1.2MB

Download
memory/1680-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1680-5-0x0000000010000000-0x000000001012A000-memory.dmp

Filesize
1.2MB

Download