b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29

General

Target

93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
Size

12KB
MD5

93a891fd446f4bdbe02badd6e69303ff
SHA1

cb27cdde00f7b41a737e862f5c2271d046745bbd
SHA256

b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29
SHA512

94aebfd060a15c98b9ae5bae0d89e2e5a072512cc3d9240ef52955f918ab82d2dd45c32e6732e1d38f1bfc29fde65484796ba62e185be809a90a1c7ecc2642a9
SSDEEP

384:cn1T4MnddswPiPpVEGLIJaN98aRu2QGsHHjS3gagAK+:mT4M04EVEnsNKsQm3N3

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
2652	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	xuntxnk.exe

Loads dropped DLL 2 IoCs

pid	Process
2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2140-1-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x00350000000173ac-3.dat	upx
behavioral1/memory/2308-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2140-10-0x0000000000030000-0x000000000003F000-memory.dmp	upx
behavioral1/memory/2140-21-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2308-23-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xuntxn.dll	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\xuntxnk.exe	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\xuntxnk.exe	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2308	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	30
PID 2140 wrote to memory of 2308	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	30
PID 2140 wrote to memory of 2308	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	30
PID 2140 wrote to memory of 2308	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	30
PID 2140 wrote to memory of 2652	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	31
PID 2140 wrote to memory of 2652	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	31
PID 2140 wrote to memory of 2652	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	31
PID 2140 wrote to memory of 2652	2140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\xuntxnk.exe
  C:\Windows\system32\xuntxnk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2308
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

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:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe.bat

Filesize
210B

MD5
220f75568714cd176240686d1a3be131

SHA1
42178e29dc20273ce13a8ab37ffdad50afdfb4ff

SHA256
b6e11624e109e365b94054afcc4d83d4d6e7dffcd2842702468560dc21bc0451

SHA512
1e920007fabc34b8e5015f9a51f454cc862261457689beea518cfe8d9a2d4d56b19e1136e2e31e7943d12f00c5aaf4848eeb94963d6692eb042e79ef42b855ac

Download Submit
\Windows\SysWOW64\xuntxnk.exe

Filesize
12KB

MD5
93a891fd446f4bdbe02badd6e69303ff

SHA1
cb27cdde00f7b41a737e862f5c2271d046745bbd

SHA256
b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29

SHA512
94aebfd060a15c98b9ae5bae0d89e2e5a072512cc3d9240ef52955f918ab82d2dd45c32e6732e1d38f1bfc29fde65484796ba62e185be809a90a1c7ecc2642a9

Download Submit
memory/2140-1-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2140-11-0x0000000000030000-0x000000000003F000-memory.dmp

Filesize
60KB

Download
memory/2140-10-0x0000000000030000-0x000000000003F000-memory.dmp

Filesize
60KB

Download
memory/2140-21-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2308-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2308-23-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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