73fefdfc634bee3576bb98cf11390bc2882497845b2bf63a4fae9844e83f01dc

Analysis

max time kernel
174s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/12/2023, 22:30

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General

Target

fcf0d36f350acc55dd76b8258c31eae1.exe
Size

967KB
MD5

fcf0d36f350acc55dd76b8258c31eae1
SHA1

b76604e033148c6a108624aa3b511480ee24988c
SHA256

73fefdfc634bee3576bb98cf11390bc2882497845b2bf63a4fae9844e83f01dc
SHA512

1cd2f828bcd46894393feaee56b8a90377856335f4315fd3d0c96db398a373e452b09385c29708ff1ca553155a3973dace03e0e750233fa6df2ace2b576649ca
SSDEEP

24576:82Q7NWUR6DUV7fovQchoiMkN0mSORLX+eLSC:lQMu6oVZ8Xp

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2784	rjmjmvww2

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\rjmjmvww2	fcf0d36f350acc55dd76b8258c31eae1.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\hardware\DESCRIPTION\System\CentralProcessor\0	fcf0d36f350acc55dd76b8258c31eae1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	fcf0d36f350acc55dd76b8258c31eae1.exe
Key opened	\REGISTRY\MACHINE\hardware\DESCRIPTION\System\CentralProcessor\0	rjmjmvww2
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	rjmjmvww2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2784	2712	fcf0d36f350acc55dd76b8258c31eae1.exe	29
PID 2712 wrote to memory of 2784	2712	fcf0d36f350acc55dd76b8258c31eae1.exe	29
PID 2712 wrote to memory of 2784	2712	fcf0d36f350acc55dd76b8258c31eae1.exe	29
PID 2712 wrote to memory of 2784	2712	fcf0d36f350acc55dd76b8258c31eae1.exe	29

C:\Users\Admin\AppData\Local\Temp\fcf0d36f350acc55dd76b8258c31eae1.exe
"C:\Users\Admin\AppData\Local\Temp\fcf0d36f350acc55dd76b8258c31eae1.exe"
1⤵
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\rjmjmvww2
  C:\Windows\rjmjmvww2
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\rjmjmvww2

Filesize
967KB

MD5
fcf0d36f350acc55dd76b8258c31eae1

SHA1
b76604e033148c6a108624aa3b511480ee24988c

SHA256
73fefdfc634bee3576bb98cf11390bc2882497845b2bf63a4fae9844e83f01dc

SHA512
1cd2f828bcd46894393feaee56b8a90377856335f4315fd3d0c96db398a373e452b09385c29708ff1ca553155a3973dace03e0e750233fa6df2ace2b576649ca

Download Submit
memory/2712-0-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2712-7-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2784-8-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2784-9-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2784-10-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2784-11-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2784-12-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2784-14-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download