71f8c47ae1110f4ebe7c2e7990cbe14eba60ddc45ca200df15123640daf5b5aa

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 22:43

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General

Target

16a31790b2c58257ff87fb04968ad462.exe
Size

572KB
MD5

16a31790b2c58257ff87fb04968ad462
SHA1

16e2991771c10b70c4d0d82d5d671df50a9c7941
SHA256

71f8c47ae1110f4ebe7c2e7990cbe14eba60ddc45ca200df15123640daf5b5aa
SHA512

0ad21b0b8303ffee71f90e0e261375c78d8f411dbac5fbdf691934386e02775ebee4f392f0edc58a76cc1d82f09177e34808b75ba7fe1f92b13a738ca64139d2
SSDEEP

12288:U6B6cDd+OHfJh9ck/Ri4eef52lhIn4J8uijt5wHFZ4P+CId0uZPXLx4y4:U1cbfX975b/Lzh5MCCjx4y

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2508	PEST V3-2 needsbinding.exe

Loads dropped DLL 7 IoCs

pid	Process
2496	16a31790b2c58257ff87fb04968ad462.exe
2496	16a31790b2c58257ff87fb04968ad462.exe
1060	WerFault.exe
1060	WerFault.exe
1060	WerFault.exe
1060	WerFault.exe
1060	WerFault.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\pestlog.swf	16a31790b2c58257ff87fb04968ad462.exe
File created	C:\Windows\smallog.swf	16a31790b2c58257ff87fb04968ad462.exe
File opened for modification	C:\Windows\smallog.swf	16a31790b2c58257ff87fb04968ad462.exe
File created	C:\Windows\pestlog.swf	16a31790b2c58257ff87fb04968ad462.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process
1060	2508	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2508	2496	16a31790b2c58257ff87fb04968ad462.exe	15
PID 2496 wrote to memory of 2508	2496	16a31790b2c58257ff87fb04968ad462.exe	15
PID 2496 wrote to memory of 2508	2496	16a31790b2c58257ff87fb04968ad462.exe	15
PID 2496 wrote to memory of 2508	2496	16a31790b2c58257ff87fb04968ad462.exe	15
PID 2508 wrote to memory of 1060	2508	PEST V3-2 needsbinding.exe	14
PID 2508 wrote to memory of 1060	2508	PEST V3-2 needsbinding.exe	14
PID 2508 wrote to memory of 1060	2508	PEST V3-2 needsbinding.exe	14
PID 2508 wrote to memory of 1060	2508	PEST V3-2 needsbinding.exe	14

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 412
1⤵
- Loads dropped DLL
- Program crash
PID:1060

C:\Windows\temp\PEST V3-2 needsbinding.exe
"C:\Windows\temp\PEST V3-2 needsbinding.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2508

C:\Users\Admin\AppData\Local\Temp\16a31790b2c58257ff87fb04968ad462.exe
"C:\Users\Admin\AppData\Local\Temp\16a31790b2c58257ff87fb04968ad462.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2496-16-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2508-18-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2508-24-0x0000000000400000-0x0000000000562000-memory.dmp

Filesize
1.4MB

Download
memory/2508-26-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download