a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-12-2022 22:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe
Size

22KB
MD5

612473e9c10b40839513571e8347377c
SHA1

3313aefb9a59fb8b491eabbc4b22d862710e271b
SHA256

a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c
SHA512

f269fec6d6cd886878f2b5fd573e77d7ad02219d26c48409fafe655d81502476cf704afede3c5aa2645ba661960176be128e9d653981b952e3b9e82c47ce1a56
SSDEEP

384:bhEdraTzXgeKV6StSmJS0tWGXw2GmfEwNtVQ3bED6zXiIoA0GbSv530Q:bhEGgVtSmo0HKu1N4rED0X50Bv530Q

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1552	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 900	1552	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	28
PID 1552 wrote to memory of 900	1552	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	28
PID 1552 wrote to memory of 900	1552	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	28
PID 1552 wrote to memory of 900	1552	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	28

C:\Users\Admin\AppData\Local\Temp\a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe
"C:\Users\Admin\AppData\Local\Temp\a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\FDEF.tmp\Tail.bat" "
  2⤵
  PID:900

Network

MITRE ATT&CK Enterprise v6

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\FDEF.tmp\Tail.bat

Filesize
512B

MD5
7c7159c0dfe2257846a3f5a07cd6dac5

SHA1
2c8d0c8c8e98a477533e5b1bb3555a2ab6fc9928

SHA256
9176cc533728dd3ebf7d55fe202030e5eed6db1921e28eda53bdab83d42e45aa

SHA512
9ce158473b44aad7de06bca11d1fde4e0f946a632c580c52b058caaadae35ea539265ce190438b3b015d0f808b009a005e3700f13aa453540b00fc7f860828e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\xor.exe

Filesize
7KB

MD5
ae204973d21384600e82a9b85aed8201

SHA1
aed1a5419d93a87379657b5483283e813d390239

SHA256
25daac160cfaab2a8161989f77c1b4a7f08838e9a058547e733fbe17044d39dd

SHA512
33e3e268afe432aa22a48fb94d2f438766e7a260946324bd1a4497ab9300265808b2c153db2cdbdb0949a119a481c739b8c488ce0cb5accc0a5a321ec6c01b6e

Download Submit
\Users\Admin\AppData\Local\Temp\FDEF.tmp\b2e.dll

Filesize
31KB

MD5
7b860f28be19d4aef761fb991134a556

SHA1
0658a7456d0234dcca598b6ee599fe134d0ecd61

SHA256
57a2586d73188a694944c7da60c78380f82fac46452ed1a31c818ceb93e660bc

SHA512
a0685a25cbc3fff74aa4ad538ade5282242980f07fe1171e01644e0fa98e1ec6adc87b943290983f6fb5070d26fc15d697ae31a1f570e83e504ae1e4508aefa5

Download Submit
memory/900-56-0x0000000000000000-mapping.dmp

Download
memory/1552-55-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download
memory/1552-59-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1552-60-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download