fff0290e60052f5dc8fd647c85ea36da0f1bd11d38a948460022d1b98baf5890

Analysis

max time kernel
142s
max time network
73s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 21:06

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General

Target

a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe
Size

284KB
MD5

a835422db73bd9fb6c427afac47d596f
SHA1

bd263170726b57320f0ddda1723dd11600b6ab02
SHA256

fff0290e60052f5dc8fd647c85ea36da0f1bd11d38a948460022d1b98baf5890
SHA512

e889bf6a36eddc9400e91de3a809f910ae505f08bf675794895bf8337d323a6dcf660c845d2ac252b229c846a3e2bda186a146140f6f4f358c7dbd217c01d4ab
SSDEEP

6144:jCbwGiXbFc/MqJ+u/8S0VJG7xwvlbs1J/kJT2sVr2utPh7TbE0QiwLj:GbKBc5l/bIv+1xkZ20xhvbJfwLj

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2792	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	systemstups.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-0-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/files/0x000c000000015635-4.dat	upx
behavioral1/memory/2120-15-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2900-17-0x0000000000400000-0x00000000004B4000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	systemstups.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\systemstups.exe	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe
File opened for modification	C:\Windows\systemstups.exe	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe
File created	C:\Windows\Delete.bat	a835422db73bd9fb6c427afac47d596f_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	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systemstups.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies data under HKEY_USERS 37 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecisionReason = "1"	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\System	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecisionReason = "1"	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecisionTime = 10099e9fb2f1da01	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm\wheel = "1"	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecisionTime = d018127ab2f1da01	systemstups.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	systemstups.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDetectedUrl	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecisionTime = 10099e9fb2f1da01	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\16-17-37-bf-92-4e	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecision = "0"	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecisionTime = d018127ab2f1da01	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecision = "0"	systemstups.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	systemstups.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	systemstups.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadNetworkName = "Network 3"	systemstups.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	systemstups.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	systemstups.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2900	systemstups.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 2224	2900	systemstups.exe	30
PID 2900 wrote to memory of 2224	2900	systemstups.exe	30
PID 2900 wrote to memory of 2224	2900	systemstups.exe	30
PID 2900 wrote to memory of 2224	2900	systemstups.exe	30
PID 2120 wrote to memory of 2792	2120	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2792	2120	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2792	2120	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2792	2120	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\Delete.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2792

C:\Windows\systemstups.exe
C:\Windows\systemstups.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:2224

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x188
1⤵
PID:2892

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\Delete.bat

Filesize
214B

MD5
fcc6e8bb6d7948650a3d9aa79337977d

SHA1
17d3295210980158673521af9460d7ee4271624e

SHA256
0b695b1547ce48a665b759b92bf62f4cdae804853f758891bf0239169f7f5f06

SHA512
b77b788f298ff735c9face804a636bc0f92ee53ee5556e63fd9092fbef1f3547a0fd07f387c3ea828e64cdfa825942c9ab8bbd0c8ec318f03a6455c6c3df6766

Download Submit
C:\Windows\systemstups.exe

Filesize
284KB

MD5
a835422db73bd9fb6c427afac47d596f

SHA1
bd263170726b57320f0ddda1723dd11600b6ab02

SHA256
fff0290e60052f5dc8fd647c85ea36da0f1bd11d38a948460022d1b98baf5890

SHA512
e889bf6a36eddc9400e91de3a809f910ae505f08bf675794895bf8337d323a6dcf660c845d2ac252b229c846a3e2bda186a146140f6f4f358c7dbd217c01d4ab

Download Submit
memory/2120-0-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2120-3-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2120-15-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2900-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2900-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2900-19-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download