fff0290e60052f5dc8fd647c85ea36da0f1bd11d38a948460022d1b98baf5890

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

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2444	systemstups.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1992-0-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral2/files/0x000800000002347f-4.dat	upx
behavioral2/memory/2444-6-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral2/memory/1992-11-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral2/memory/2444-13-0x0000000000400000-0x00000000004B4000-memory.dmp	upx

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 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	systemstups.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	systemstups.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2444	systemstups.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 4528	2444	systemstups.exe	90
PID 2444 wrote to memory of 4528	2444	systemstups.exe	90
PID 1992 wrote to memory of 1420	1992	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	91
PID 1992 wrote to memory of 1420	1992	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	91
PID 1992 wrote to memory of 1420	1992	a835422db73bd9fb6c427afac47d596f_JaffaCakes118.exe	91

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:1992
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\Delete.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420

C:\Windows\systemstups.exe
C:\Windows\systemstups.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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/1992-0-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1992-1-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1992-11-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2444-6-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2444-7-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/2444-13-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2444-15-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download

Analysis

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