f1b79d8ec6b4fca0a53a29d439fa812c66dd33b250da8526d532b460a3d46d61

General

Target

efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
Size

33KB
MD5

efe02733e81cae2a2bec119f0038c050
SHA1

18d75493a16ae9a3047e8e343b1bec1da40e1a98
SHA256

f1b79d8ec6b4fca0a53a29d439fa812c66dd33b250da8526d532b460a3d46d61
SHA512

4b6fbea1a0066b5c7955446dc704eef7cb45cb88569417f976bbcd6eb843ded577b9caa194a6891831b4bf782b61f60666301a0a1323f3af2def245cdfe5e4d3
SSDEEP

768:njESpk1/sRYP/UosfFSON+PqEZY3E+cshEY:nnTYPraSu+C+cLRe

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2540	mhs3.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	mhs3.exe

Loads dropped DLL 1 IoCs

pid	Process
2540	mhs3.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/588-0-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral1/memory/588-2-0x00000000001B0000-0x00000000001CB000-memory.dmp	upx
behavioral1/files/0x000e000000012262-6.dat	upx
behavioral1/memory/588-10-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral1/memory/2540-14-0x0000000000400000-0x000000000041B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\mhs3 = "C:\\Windows\\mhs3.exe"	mhs3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\mhs3.exe	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
File opened for modification	C:\Windows\mhs3.exe	efe02733e81cae2a2bec119f0038c050_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	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mhs3.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
588	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
2540	mhs3.exe
2540	mhs3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2540	mhs3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 588 wrote to memory of 2540	588	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe	30
PID 588 wrote to memory of 2540	588	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe	30
PID 588 wrote to memory of 2540	588	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe	30
PID 588 wrote to memory of 2540	588	efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:588
- C:\Windows\mhs3.exe
  C:\Windows\mhs3.exe /24c@C:\Users\Admin\AppData\Local\Temp\efe02733e81cae2a2bec119f0038c050_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mhs3.exe

Filesize
33KB

MD5
efe02733e81cae2a2bec119f0038c050

SHA1
18d75493a16ae9a3047e8e343b1bec1da40e1a98

SHA256
f1b79d8ec6b4fca0a53a29d439fa812c66dd33b250da8526d532b460a3d46d61

SHA512
4b6fbea1a0066b5c7955446dc704eef7cb45cb88569417f976bbcd6eb843ded577b9caa194a6891831b4bf782b61f60666301a0a1323f3af2def245cdfe5e4d3

Download Submit
\Users\Admin\AppData\Local\Temp\mhs0.dll

Filesize
44KB

MD5
ce5f9b21b4f30de4d4ab7673f698bd09

SHA1
4f47dd96f8dd12e00c2a5f50b57df9db62eb98dc

SHA256
34e506e4c7124ac059293593002ce9faf5fe623ee06bc1c261ec5b7c6630b86b

SHA512
8287ae36c07b77c67194af9cc64df44b3c3cc7de6aaef4e4d51a2d7a4e2c43718f75b5cbc38a0b6a52bdd2d105d1740ceee8d2279acfdb7df2f6669ddd91cd96

Download Submit
memory/588-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/588-2-0x00000000001B0000-0x00000000001CB000-memory.dmp

Filesize
108KB

Download
memory/588-8-0x00000000001B0000-0x00000000001CB000-memory.dmp

Filesize
108KB

Download
memory/588-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2540-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads