c6441fe83d55602274e827b37f177f85447cb54d8e6cea1566ac04ea259a13f6

General

Target

b9f50fb4e8fa3c8fd2a0169cebb48108.exe
Size

108KB
MD5

b9f50fb4e8fa3c8fd2a0169cebb48108
SHA1

c223597d7c8a8d132e7c7d4c5f05372c7a824b10
SHA256

c6441fe83d55602274e827b37f177f85447cb54d8e6cea1566ac04ea259a13f6
SHA512

c42cbc0a36113007f856a0b6921c69b7bee0ad83c3a042d711ac83dfbaf9891a9f8755c6ad8ca61b6ce18c5556e5818ecd0ef0292961aedcafc7ca237d5750e9
SSDEEP

3072:LTof+8cUfY9eQUtjeY8ZfNyAMHUv2S55VW7FmNE:Po2U8hUtA9BM0OSzVa0E

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2556	js.exe

Loads dropped DLL 5 IoCs

pid	Process
2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe
2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe
2556	js.exe
2556	js.exe
2556	js.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2840-0-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral1/files/0x0006000000018687-9.dat	upx
behavioral1/memory/2840-11-0x0000000000260000-0x000000000026F000-memory.dmp	upx
behavioral1/memory/2840-18-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral1/memory/2840-17-0x0000000000260000-0x000000000026F000-memory.dmp	upx
behavioral1/memory/2556-26-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2556-27-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 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\Java VM v6.91 = "C:\\Windows\\system32\\jdk-1_5_0_19-windows-i391-pp\\jav.bat"	js.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\Java VM v6.91 = "C:\\Windows\\system32\\jdk-1_5_0_19-windows-i391-pp\\jav.bat"	js.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Java VM v6.91	js.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Java VM v6.91	js.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\jdk-1_5_0_19-windows-i391-pp\dc.$$A	b9f50fb4e8fa3c8fd2a0169cebb48108.exe
File created	C:\Windows\SysWOW64\jdk-1_5_0_19-windows-i391-pp\jav.$$A	b9f50fb4e8fa3c8fd2a0169cebb48108.exe
File created	C:\Windows\SysWOW64\jdk-1_5_0_19-windows-i391-pp\js.$$A	b9f50fb4e8fa3c8fd2a0169cebb48108.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28
PID 2840 wrote to memory of 2556	2840	b9f50fb4e8fa3c8fd2a0169cebb48108.exe	28

C:\Users\Admin\AppData\Local\Temp\b9f50fb4e8fa3c8fd2a0169cebb48108.exe
"C:\Users\Admin\AppData\Local\Temp\b9f50fb4e8fa3c8fd2a0169cebb48108.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\jdk-1_5_0_19-windows-i391-pp\js.exe
  "C:\Windows\system32\jdk-1_5_0_19-windows-i391-pp\js.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  PID:2556

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\jdk-1_5_0_19-windows-i391-pp\js.exe

Filesize
16KB

MD5
3ec13bdc53b2984848736b602dd46de2

SHA1
9071031b09329136da76f505244ea5c3ee03ce6a

SHA256
bbeb77a4bf55861bcf9d0ebb1baebd61838d82befcb4438d65a02fac6b4dcc57

SHA512
0a88d6e01a4c6707eea1701a8159d326fb1574db2dd3afc8b85ca355163e83af0d08ad0080827af1cd99737f2c399ffd2aa5a193777b5fed95ee150fa38c840f

Download Submit
memory/2556-25-0x0000000000020000-0x000000000002F000-memory.dmp

Filesize
60KB

Download
memory/2556-23-0x0000000000020000-0x000000000002F000-memory.dmp

Filesize
60KB

Download
memory/2556-26-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2556-27-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2840-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2840-2-0x0000000000240000-0x0000000000272000-memory.dmp

Filesize
200KB

Download
memory/2840-1-0x0000000000240000-0x0000000000272000-memory.dmp

Filesize
200KB

Download
memory/2840-11-0x0000000000260000-0x000000000026F000-memory.dmp

Filesize
60KB

Download
memory/2840-24-0x0000000000240000-0x000000000024D000-memory.dmp

Filesize
52KB

Download
memory/2840-18-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2840-17-0x0000000000260000-0x000000000026F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads