a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 22:26

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General

Target

a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe
Size

22KB
MD5

612473e9c10b40839513571e8347377c
SHA1

3313aefb9a59fb8b491eabbc4b22d862710e271b
SHA256

a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c
SHA512

f269fec6d6cd886878f2b5fd573e77d7ad02219d26c48409fafe655d81502476cf704afede3c5aa2645ba661960176be128e9d653981b952e3b9e82c47ce1a56
SSDEEP

384:bhEdraTzXgeKV6StSmJS0tWGXw2GmfEwNtVQ3bED6zXiIoA0GbSv530Q:bhEGgVtSmo0HKu1N4rED0X50Bv530Q

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe

Loads dropped DLL 1 IoCs

pid	Process
1028	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 3 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 3792	1028	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	79
PID 1028 wrote to memory of 3792	1028	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	79
PID 1028 wrote to memory of 3792	1028	a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe	79

C:\Users\Admin\AppData\Local\Temp\a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe
"C:\Users\Admin\AppData\Local\Temp\a4aaf8b9d023888798c7c7a373c317009190dc9e39c4ed802c597f4e08b7011c.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7043.tmp\Tail.bat" "
  2⤵
  PID:3792

Network

MITRE ATT&CK Enterprise v6

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:\Users\Admin\AppData\Local\Temp\7043.tmp\Tail.bat

Filesize
512B

MD5
7c7159c0dfe2257846a3f5a07cd6dac5

SHA1
2c8d0c8c8e98a477533e5b1bb3555a2ab6fc9928

SHA256
9176cc533728dd3ebf7d55fe202030e5eed6db1921e28eda53bdab83d42e45aa

SHA512
9ce158473b44aad7de06bca11d1fde4e0f946a632c580c52b058caaadae35ea539265ce190438b3b015d0f808b009a005e3700f13aa453540b00fc7f860828e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7043.tmp\b2e.dll

Filesize
31KB

MD5
7b860f28be19d4aef761fb991134a556

SHA1
0658a7456d0234dcca598b6ee599fe134d0ecd61

SHA256
57a2586d73188a694944c7da60c78380f82fac46452ed1a31c818ceb93e660bc

SHA512
a0685a25cbc3fff74aa4ad538ade5282242980f07fe1171e01644e0fa98e1ec6adc87b943290983f6fb5070d26fc15d697ae31a1f570e83e504ae1e4508aefa5

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

Filesize
7KB

MD5
ae204973d21384600e82a9b85aed8201

SHA1
aed1a5419d93a87379657b5483283e813d390239

SHA256
25daac160cfaab2a8161989f77c1b4a7f08838e9a058547e733fbe17044d39dd

SHA512
33e3e268afe432aa22a48fb94d2f438766e7a260946324bd1a4497ab9300265808b2c153db2cdbdb0949a119a481c739b8c488ce0cb5accc0a5a321ec6c01b6e

Download Submit
memory/1028-133-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1028-137-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3792-134-0x0000000000000000-mapping.dmp

Download