741bac0e7f0d2b5e0ee0568b98394c06a80d1f90a5b11e3cb31a9dbd5e9e9671

General

Target

0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
Size

15KB
MD5

0efeaf6ef51984d662bd236e350d0ff6
SHA1

0eb98bf27cb88cc6d3a16b82a0176e14f3b849bd
SHA256

741bac0e7f0d2b5e0ee0568b98394c06a80d1f90a5b11e3cb31a9dbd5e9e9671
SHA512

6ef6daf65b1405b81040d8f151f833d22432bfc6758274380150de39241fc759ea505812c5e2155622f1a8469cad77982f52e8c02daa2fa25bf0a5f4837332fd
SSDEEP

384:u+TLeHgNw4DcVOoO/McjmqqW1mZBz+0UsTUR2laEnWEJo:7TL8gNGVILr1mjUR2lv5S

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1724	eljek.exe

Loads dropped DLL 2 IoCs

pid	Process
2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe

Drops file in System32 directory 25 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\eljek.exe	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe
File created	C:\Windows\SysWOW64\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe\eljek.exe	eljek.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2080-0-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/files/0x00080000000120fb-2.dat	upx
behavioral1/memory/2080-10-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1724-12-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2080-4-0x0000000002760000-0x0000000002786000-memory.dmp	upx
behavioral1/memory/1724-14-0x0000000000400000-0x0000000000426000-memory.dmp	upx

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	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eljek.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
1724	eljek.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1724	2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1724	2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1724	2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1724	2080	0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\0efeaf6ef51984d662bd236e350d0ff6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0efeaf6ef51984d662bd236e350d0ff6_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:2080
- C:\Windows\SysWOW64\eljek.exe
  C:\Windows\system32\eljek.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1724

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

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\eljek.exe

Filesize
15KB

MD5
0efeaf6ef51984d662bd236e350d0ff6

SHA1
0eb98bf27cb88cc6d3a16b82a0176e14f3b849bd

SHA256
741bac0e7f0d2b5e0ee0568b98394c06a80d1f90a5b11e3cb31a9dbd5e9e9671

SHA512
6ef6daf65b1405b81040d8f151f833d22432bfc6758274380150de39241fc759ea505812c5e2155622f1a8469cad77982f52e8c02daa2fa25bf0a5f4837332fd

Download Submit
memory/1724-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1724-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2080-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2080-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2080-4-0x0000000002760000-0x0000000002786000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing