3e7158db9e3287b1a3fc89b3b7b609e4879e553c7d59cfddc0117fa764b4844f

Analysis

max time kernel
9s
max time network
1s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/03/2025, 19:19

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General

Target

JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
Size

125KB
MD5

9462b737c1559858d26f4d49ff0341ab
SHA1

b7b15bfcb2a0dc1c4d82560987df4828f5c3742a
SHA256

3e7158db9e3287b1a3fc89b3b7b609e4879e553c7d59cfddc0117fa764b4844f
SHA512

d0e6c9eae2390b1991fb2d533d1f195fa2d7387d966f033312d979899d5bee6979e4497546eb3b8d513c81e91b5c3b2edfbc085177ca2b1f0be4cf03344e6586
SSDEEP

3072:K7pn7qMJA3QLOmQX1McZhrdp37hEriLzVecQe5:Gjy3VX/ZxAi1ecd

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2760	Csrss.exe

Loads dropped DLL 4 IoCs

pid	Process
2836	regsvr32.exe
2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
2756	regsvr32.exe
2760	Csrss.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Mswinsck.ocx	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2740-0-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/2740-15-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/2740-14-0x0000000003180000-0x00000000031D8000-memory.dmp	upx
behavioral1/files/0x0007000000016031-13.dat	upx
behavioral1/files/0x0007000000016031-20.dat	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Csrss.exe	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
File created	C:\Windows\Csrss.exe	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A52-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CurVer\ = "MSWinsock.Winsock.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID\ = "MSWinsock.Winsock.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Control	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID\ = "MSWinsock.Winsock.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ToolboxBitmap32\ = "C:\\Windows\\SysWow64\\Mswinsck.ocx, 1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\VersionIndependentProgID\ = "MSWinsock.Winsock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A57-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A52-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Control	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\ = "Microsoft WinSock Control, version 6.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ToolboxBitmap32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A57-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\ = "Microsoft WinSock Control, version 6.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\VersionIndependentProgID\ = "MSWinsock.Winsock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ = "IMSWinsockControl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ = "DMSWinsockControlEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ = "C:\\Windows\\SysWow64\\Mswinsck.ocx"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ = "C:\\Windows\\SysWow64\\Mswinsck.ocx"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1\ = "132497"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\ = "Microsoft Winsock Control 6.0 (SP5)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ = "IMSWinsockControl"	regsvr32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
2760	Csrss.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2836	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	31
PID 2740 wrote to memory of 2760	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	32
PID 2740 wrote to memory of 2760	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	32
PID 2740 wrote to memory of 2760	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	32
PID 2740 wrote to memory of 2760	2740	JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe	32
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33
PID 2760 wrote to memory of 2756	2760	Csrss.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9462b737c1559858d26f4d49ff0341ab.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s C:\Windows\system32\Mswinsck.ocx
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2836
- C:\Windows\Csrss.exe
  C:\Windows\Csrss.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32 /s C:\Windows\system32\Mswinsck.ocx
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Csrss.exe

Filesize
125KB

MD5
9462b737c1559858d26f4d49ff0341ab

SHA1
b7b15bfcb2a0dc1c4d82560987df4828f5c3742a

SHA256
3e7158db9e3287b1a3fc89b3b7b609e4879e553c7d59cfddc0117fa764b4844f

SHA512
d0e6c9eae2390b1991fb2d533d1f195fa2d7387d966f033312d979899d5bee6979e4497546eb3b8d513c81e91b5c3b2edfbc085177ca2b1f0be4cf03344e6586

Download Submit
C:\Windows\Csrss.exe

Filesize
71KB

MD5
e8cb6f9010e02047181a6414cadd5e89

SHA1
60e658aa860b134a83bee0a98bd084be8ad69f56

SHA256
5050ab3121a4643f7168730f79440a9cb42019b441b76e82cd2ee6464a75944e

SHA512
32dafa285537ffe4ef082cb3cd274773d8d84873047cb674c1d71a77722389fef82242b94ac79a18d48f606e6ec7dd143967a6e8842afddc3370ca2d9b3229ef

Download Submit
C:\Windows\SysWOW64\Mswinsck.ocx

Filesize
106KB

MD5
3d8fd62d17a44221e07d5c535950449b

SHA1
6c9d2ecdd7c2d1b9660d342e2b95a82229486d27

SHA256
eba048e3a9cb11671d0e3c5a0b243b304d421762361fe24fd5ea08cb66704b09

SHA512
501e22a0f99e18f6405356184506bc5849adc2c1df3bdee71f2b4514ab0e3e36673b4aecbd615d24ebb4be5a28570b2a6f80bd52331edb658f7a5f5a9d686d10

Download Submit
memory/2740-0-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2740-15-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2740-14-0x0000000003180000-0x00000000031D8000-memory.dmp

Filesize
352KB

Download